From mrahman426 at YAHOO.COM  Tue Sep  1 01:28:57 2009
From: mrahman426 at YAHOO.COM (mizanur rahman)
Date: Mon, 31 Aug 2009 22:28:57 -0700
Subject: Fw: Re: Regarding .CDF file display in grads
Message-ID: <MON.31.AUG.2009.222857.0700.>

Dear All
I tried several times .nc instead of .CDF in grads but i could not success.


--- On Mon, 8/31/09, loli lindalva <olivia851224 at GMAIL.COM> wrote:


From: loli lindalva <olivia851224 at GMAIL.COM>
Subject: Re: Regarding .CDF file display in grads
To: GRADSUSR at LIST.CINECA.IT
Date: Monday, August 31, 2009, 2:25 PM



Por ejemplo si el nombre de tu fichero es hgt.2004.nc
primero te sale una ventana pidiendote la opcion y le das "l", luego para abri el fichero "sdfopen", seguido del nombre de la variable y para fijar latitud y longitud
"set lat " y "set lon", "d" par mostrar la variable, para el tiempo "set t" tienes que tener en cuenta que los datos son sinopticos y que set t 1 es el 1/1/2004 a las 00Z? si quieres plotear el geopotencial del 2/1/2004 a la 12Z a cercano a Cuba ser?a
sdfopen hgt.2004.nc
set lat 10 50
set lon 250 300
set t 5
d hgt

te adjunto un script que hice para graficar cualguier variable espero que te sirva de ser asi te agradeceria que me lo dijeras un saludo olivia
2009/8/31 mizanur rahman <mrahman426 at yahoo.com>






Dear sir
I would like to introduce myself to you. I am a researcher in the field of Meteorology.?I downloaded CRU data from ICTP web site that is linked with the CRU web site. This CRU data is CRUPRE.CDF fomat. How do display .CRF file?in Grads? I know how to display .nc file in grads but I tried several times to display in grads to .CDF file but I could not success.
Please let me know how to display .CDF file in grads.

Best? wishes



Rahman
Bangladesh 




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From syllabamba at YAHOO.FR  Tue Sep  1 04:36:55 2009
From: syllabamba at YAHOO.FR (Bamba Sylla)
Date: Tue, 1 Sep 2009 08:36:55 +0000
Subject: Regarding .CDF file display in grads
In-Reply-To: <567939.80725.qm@web112407.mail.gq1.yahoo.com>
Message-ID: <TUE.1.SEP.2009.083655.0000.>

Hi !

Just tape sdfopen CRUPRE.CDF, it will work or the download was not complete.

Regards !


 ***************************************************
Mouhamadou Bamba SYLLA
Post-Doc Position, PWC/ESP
International Centre for Theoretical Physics
Strada Costiera 11, 34100 Trieste, Italy
Office tel: 0039 040 2240 225
Cell: 0039 34 71 94 06 55
emails: msylla at ictp.it, syllabamba at yahoo.fr 
***************************************************




________________________________
De : mizanur rahman <mrahman426 at YAHOO.COM>
? : GRADSUSR at LIST.CINECA.IT
Envoy? le : Mardi, 1 Septembre 2009, 7h28mn 57s
Objet : Fw: Re: Regarding .CDF file display in grads


Dear All
I tried several times .nc instead of .CDF in grads but i could not success.


--- On Mon, 8/31/09, loli lindalva <olivia851224 at GMAIL.COM> wrote:


>From: loli lindalva <olivia851224 at GMAIL.COM>
>Subject: Re: Regarding .CDF file display in grads
>To: GRADSUSR at LIST.CINECA.IT
>Date: Monday, August 31, 2009, 2:25 PM
>
>
>Por ejemplo si el nombre de tu fichero es hgt.2004.nc
>primero te sale una ventana pidiendote la opcion y le das "l", luego para abri el fichero "sdfopen", seguido del nombre de la variable y para fijar latitud y longitud
>"set lat " y "set lon", "d" par mostrar la variable, para el tiempo "set t" tienes que tener en cuenta que los datos son sinopticos y que set t 1 es el 1/1/2004 a las 00Z  si quieres plotear el geopotencial del 2/1/2004 a la 12Z a cercano a Cuba ser?a
>sdfopen hgt.2004.nc
>set lat 10 50
>set lon 250 300
>set t 5
>d hgt
>
>te adjunto un script que hice para graficar cualguier variable espero que te sirva de ser asi te agradeceria que me lo dijeras un saludo olivia
>2009/8/31 mizanur rahman <mrahman426 at yahoo.com>
>
>Dear sir
>>I would like to introduce myself to you. I am a researcher in the field of Meteorology. I downloaded CRU data from ICTP web site that is linked with the CRU web site. This CRU data is CRUPRE.CDF fomat. How do display .CRF file in Grads? I know how to display .nc file in grads but I tried several times to display in grads to .CDF file but I could not success.
>>Please let me know how to display .CDF file in
>> grads.
>>
>>Best  wishes
>> 
>>
>> 
>>Rahman 
>>Bangladesh  
>>
> 



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From mmahakur at TROPMET.RES.IN  Tue Sep  1 07:03:40 2009
From: mmahakur at TROPMET.RES.IN (M.Mahakur)
Date: Tue, 1 Sep 2009 17:33:40 +0630
Subject: Fw: Re: Regarding .CDF file display in grads
In-Reply-To: <567939.80725.qm@web112407.mail.gq1.yahoo.com>
Message-ID: <TUE.1.SEP.2009.173340.0630.>

Hello,

what do you get from "ncdump CRUPRE.CDF " ?? Probably you need to make or get the DDF
file. The CRU software site: http://www.cru.uea.ac.uk/~timm/grid/CRU_TS_2_1.html may
assist you.

Regards,

Mahakur
IITM, Pune (India)


---------- Original Message -----------
From: mizanur rahman <mrahman426 at YAHOO.COM>
To: GRADSUSR at list.cineca.it
Sent: Mon, 31 Aug 2009 22:28:57 -0700
Subject: Fw: Re: Regarding .CDF file display in grads

> Dear All
> I tried several times .nc instead of .CDF in grads but i could not success.
>
> --- On Mon, 8/31/09, loli lindalva <olivia851224 at GMAIL.COM> wrote:
>
> From: loli lindalva <olivia851224 at GMAIL.COM>
> Subject: Re: Regarding .CDF file display in grads
> To: GRADSUSR at LIST.CINECA.IT
> Date: Monday, August 31, 2009, 2:25 PM
>
> Por ejemplo si el nombre de tu fichero es hgt.2004.nc
> primero te sale una ventana pidiendote la opcion y le das "l", luego para abri
> el fichero "sdfopen", seguido del nombre de la variable y para fijar latitud y
> longitud "set lat " y "set lon", "d" par mostrar la variable, para el tiempo
> "set t" tienes que tener en cuenta que los datos son sinopticos y que set t 1
> es el 1/1/2004 a las 00Z  si quieres plotear el geopotencial del 2/1/2004 a la
> 12Z a cercano a Cuba ser?a sdfopen hgt.2004.nc set lat 10 50 set lon 250 300
> set t 5 d hgt
>
> te adjunto un script que hice para graficar cualguier variable espero que te
> sirva de ser asi te agradeceria que me lo dijeras un saludo olivia 2009/8/31
> mizanur rahman <mrahman426 at yahoo.com>
>
> Dear sir
> I would like to introduce myself to you. I am a researcher in the field of
> Meteorology. I downloaded CRU data from ICTP web site that is linked with the
> CRU web site. This CRU data is CRUPRE.CDF fomat. How do display .CRF file in
> Grads? I know how to display .nc file in grads but I tried several times to
> display in grads to .CDF file but I could not success. Please let me know how
> to display .CDF file in grads.
>
> Best  wishes
>
> Rahman
> Bangladesh
------- End of Original Message -------


From mmahakur at TROPMET.RES.IN  Tue Sep  1 08:45:02 2009
From: mmahakur at TROPMET.RES.IN (M.Mahakur)
Date: Tue, 1 Sep 2009 19:15:02 +0630
Subject: Regarding .CDF file display in grads
In-Reply-To: <de5e04f30908311425p347c555gc42780502f2da574@mail.gmail.com>
Message-ID: <TUE.1.SEP.2009.191502.0630.>

Hello,

I checked with the data, 'sdfopen' worked for me:

$grads -l

Grid Analysis and Display System (GrADS) Version 2.0.a3
Copyright (c) 1988-2008 by Brian Doty and the
Institute for Global Environment and Society (IGES)
GrADS comes with ABSOLUTELY NO WARRANTY
See file COPYRIGHT for more information

Config: v2.0.a3 little-endian readline printim grib2 netcdf hdf4-sds
Issue 'q config' command for more information.
GX Package Initialization: Size = 11 8.5
ga-> sdfopen CRUPRE.CDF

Scanning self-describing file:  CRUPRE.CDF
SDF file CRUPRE.CDF is open as file 1
LON set to 0 360
LAT set to -89.75 89.75
LEV set to 0 0
Time values set: 1901:1:15:0 1901:1:15:0
E set to 1 1
ga-> q file
File 1 :
  Descriptor: CRUPRE.CDF
  Binary: CRUPRE.CDF
  Type = Gridded
  Xsize = 720  Ysize = 360  Zsize = 1  Tsize = 1224  Esize = 1
  Number of Variables = 1
    pre 0 -103 Precipitation
ga->


It should work for you also, check your file if you have obtained properly!

Regards,

Mahakur
-

---------- Original Message -----------
From: loli lindalva <olivia851224 at GMAIL.COM>
To: GRADSUSR at list.cineca.it
Sent: Mon, 31 Aug 2009 17:25:13 -0400
Subject: Re: Regarding .CDF file display in grads

> Por ejemplo si el nombre de tu fichero es hgt.2004.nc
> primero te sale una ventana pidiendote la opcion y le das "l", luego para
> abri el fichero "sdfopen", seguido del nombre de la variable y para fijar
> latitud y longitud
> "set lat " y "set lon", "d" par mostrar la variable, para el tiempo "set t"
> tienes que tener en cuenta que los datos son sinopticos y que set t 1 es el
> 1/1/2004 a las 00Z  si quieres plotear el geopotencial del 2/1/2004 a la 12Z
> a cercano a Cuba ser?a
> sdfopen hgt.2004.nc
> set lat 10 50
> set lon 250 300
> set t 5
> d hgt
>
> te adjunto un script que hice para graficar cualguier variable espero que te
> sirva de ser asi te agradeceria que me lo dijeras un saludo olivia
> 2009/8/31 mizanur rahman <mrahman426 at yahoo.com>
>
> >   Dear sir
> > I would like to introduce myself to you. I am a researcher in the field of
> > Meteorology. I downloaded CRU data from ICTP web site that is linked with
> > the CRU web site. This CRU data is CRUPRE.CDF fomat. How do display .CRF
> > file in Grads? I know how to display .nc file in grads but I tried several
> > times to display in grads to .CDF file but I could not success.
> > Please let me know how to display .CDF file in grads.
> >
> > Best  wishes
> >
> >
> > Rahman
> >
> > Bangladesh
> >
> >
------- End of Original Message -------


From max.rythmos at YAHOO.COM  Tue Sep  1 09:34:39 2009
From: max.rythmos at YAHOO.COM (MARZIO VENEMAN)
Date: Tue, 1 Sep 2009 06:34:39 -0700
Subject: CINECA on social network and European Space Agency proposals
Message-ID: <TUE.1.SEP.2009.063439.0700.>

Dear Gradsusers,
Buongiorno cari amici,
.
.
With reference to the above mentioned subjects, I take pleasure informing you as follows:
?
Dear Mr Veneman, 

Please note that access to EMITS is limited to ESA potential bidders. 

To apply for an ESA potential bidder code, please fill in the Entity registration request available at the following url: 

http://emits.esa.int/emits/owa/indus_outlook.entity_reg 

For any further information on the new on-line Tender Registration System we would like to invite you to visit the Industry Portal: 

http://www.esa.int/export/esaCP/GGG59KAUGEC_Benefits_0.html 

Please do not hesitate to contact us for any further assistance you may require. 

Kind regards, 
? 
Rosa 
? 
EDS Service Desk 
CITI English/French lines from ESA Establishments: 80700 
External lines from all other ESA sites and while on mission :+39 06 941 80700 
Email : servdesk at esa.int 
ID Helpdesk - ESA Corporate Applications: 80700 
External lines: +39 06 941 80700 
Email : IDHelp at esa.int 
FAX number :+39 080 3853846 
For information, help, FAQs etc:The OPS-E Service Portal?
?
.
Finally, I would like to inform you in respect of a professional social network on which CINECA is also represented and also various other (local)groups.
?
I trust this information is sufficient for your purposes, in case you require any additional details, please do not hesitate to contact the undersigned.
.
.
Yours sincerely,
Cordiali Saluti
.
.
.
Marzio Veneman
The Netherlands

?

.
Click here to visit my?professional profile and connect!
<http://www.linkedin-ech3.com/in/rythmomachy>
<http://en.wikipedia.org/wiki/User:Rythmomachy>
.

.
This email message may contain privilliged information and is solely intended for the recipient(s) mentioned above.? To ensure that you continue receiving our emails, please add <max.rythmos at yahoo.com> to your address book or safe list.
.


.
.
________________________________

.
________________________________

________________________________



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From swardika at GMAIL.COM  Tue Sep  1 10:12:38 2009
From: swardika at GMAIL.COM (I Ketut Swardika Swardika)
Date: Tue, 1 Sep 2009 23:12:38 +0900
Subject: Filled line plot area
Message-ID: <TUE.1.SEP.2009.231238.0900.>

Dear GRADSUSER

I plots line of sst anomalies, and I want positive anomalies area is filled
with color red and negative anomalies area is filled with blue.
How to do that?, let me know please.

thank any advice
ketut
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From Mary-Jo.Nath at NOAA.GOV  Tue Sep  1 10:36:33 2009
From: Mary-Jo.Nath at NOAA.GOV (Mary Jo Nath)
Date: Tue, 1 Sep 2009 10:36:33 -0400
Subject: Filled line plot area
In-Reply-To: <b1f81da10909010712ma0b81eew6df4e20c07799900@mail.gmail.com>
Message-ID: <TUE.1.SEP.2009.103633.0400.>

Ketut,

    set gxout linefill
    set lfcols 2 4
    d a;b

Color where a > b in red (2) and a < b in blue (4) .

In your case, "a" would be "sst" and "b" should be something like
"const(sst,0.,-a)" or "sst*0." since you want to shade less than and
greater than zero. (You can't just do "d sst;0." because the second
variable needs to be on the same grid as "sst".  "sst*0." or
"const(sst,0.,-a)" are on the same grid as "sst", but have the value = 0.)

MJ


I Ketut Swardika Swardika wrote:
> Dear GRADSUSER
>
> I plots line of sst anomalies, and I want positive anomalies area is
> filled with color red and negative anomalies area is filled with blue.
> How to do that?, let me know please.
>
> thank any advice
> ketut
>
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From mmahakur at TROPMET.RES.IN  Tue Sep  1 11:40:30 2009
From: mmahakur at TROPMET.RES.IN (M.Mahakur)
Date: Tue, 1 Sep 2009 22:10:30 +0630
Subject: station model: cloud amount
In-Reply-To: <20090820085324.093A020195@mx2.cineca.it>
Message-ID: <TUE.1.SEP.2009.221030.0630.>

Respected GrADS Users,

I would like to plot 'total cloud amount (in okta/octa)' inside the station circle(s)
using the 'station model' plots: http://www.iges.org/grads/gadoc/usingstationdata.html.
Code 21,22 and 23 seems to be ok for plotting 1/8, 7/8 and 8/8 (i.e. overcast), for
example 1/8 in the attached test.png. How can I show cloud coverages of 2/8, 3/8, 4/8,
5/8 and 6/8 with "standard symbols" as shown the attached file <<cld_amount_okta.gif>>?

I request your help for a script or tricks making making plots.

PS: Sorry, for posting again as I did not got any response to my earlier e-mail.

With Regards and Thanks,

M. Mahakur

FRD/IITM, Pune (India).

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From igor at CEAM.ES  Tue Sep  1 11:41:00 2009
From: igor at CEAM.ES (Igor G=?ISO-8859-1?Q?=F3mez?=)
Date: Tue, 1 Sep 2009 17:41:00 +0200
Subject: Lats4d with GrADS 2
Message-ID: <TUE.1.SEP.2009.174100.0200.>

Hi GrADS users,

I have a question related to Lats4d usage with GrADS 2. We want to convert
netcdf files to grib, but GrADS 2 does not include the LATS option. Is there
still any possibility to do this?

Thank you very much in advance.

Igor.


From smcmillan at PLANALYTICS.COM  Tue Sep  1 12:23:28 2009
From: smcmillan at PLANALYTICS.COM (Stephen R McMillan)
Date: Tue, 1 Sep 2009 11:23:28 -0500
Subject: OACRES - Radii of Influence
Message-ID: <TUE.1.SEP.2009.112328.0500.>

What are the OACRES function's optional "radii of influence"?  Are they 
length units and, if so, what?  If not, are they number of grid 
cells/points...or something else?

I could not find the answer, either in the Documentation Index 
description, or in the User archives.

Stephen McMillan


***************************************************
The information contained in this e-mail message is intended only for the use of the recipient(s) named above and may contain information that is privileged, confidential, and/or proprietary.  If you are not the intended recipient, you may not review, copy or distribute this message.  If you have received this communication in error, please notify the sender immediately by e-mail, and delete the original message.
***************************************************
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From mmahakur at TROPMET.RES.IN  Tue Sep  1 15:15:32 2009
From: mmahakur at TROPMET.RES.IN (M.Mahakur)
Date: Wed, 2 Sep 2009 01:45:32 +0630
Subject: OACRES - Radii of Influence
In-Reply-To: <OF53974330.1DFC48C4-ON85257624.00598B58-86257624.005A0AD5@planalytics.com>
Message-ID: <WED.2.SEP.2009.014532.0630.>

It is the distance from the grid with in which the stations are used and values are
weighted. I feel (as the contours does not go far into the data void regions) the
distance is in terms of grid_length units, just a guess!! The src code developer(s) must
be able to tell us correctly. Sorry!

Regards,

Mahakur

---------- Original Message -----------
From: Stephen R McMillan <smcmillan at PLANALYTICS.COM>
To: GRADSUSR at list.cineca.it
Sent: Tue, 1 Sep 2009 11:23:28 -0500
Subject: OACRES - Radii of Influence

> What are the OACRES function's optional "radii of influence"?  Are they
> length units and, if so, what?  If not, are they number of grid
> cells/points...or something else?
>
> I could not find the answer, either in the Documentation Index
> description, or in the User archives.
>
> Stephen McMillan
>
> ***************************************************
> The information contained in this e-mail message is intended only for the use
> of the recipient(s) named above and may contain information that is privileged,
>  confidential, and/or proprietary.  If you are not the intended recipient, you
> may not review, copy or distribute this message.  If you have received this
> communication in error, please notify the sender immediately by e-mail, and
> delete the original message. ***************************************************
------- End of Original Message -------


From Michael.Fiorino at NOAA.GOV  Tue Sep  1 17:12:29 2009
From: Michael.Fiorino at NOAA.GOV (Michael Fiorino)
Date: Tue, 1 Sep 2009 21:12:29 +0000
Subject: OACRES - Radii of Influence
In-Reply-To: <20090901190707.M73833@tropmet.res.in>
Message-ID: <TUE.1.SEP.2009.211229.0000.>

it's in grid length units...  see:
http://grads.iges.org/grads/gadoc/gradfuncoacres.html
ciao ciao mike

M.Mahakur wrote:
> It is the distance from the grid with in which the stations are used and values are
> weighted. I feel (as the contours does not go far into the data void regions) the
> distance is in terms of grid_length units, just a guess!! The src code developer(s) must
> be able to tell us correctly. Sorry!
>
> Regards,
>
> Mahakur
>
> ---------- Original Message -----------
> From: Stephen R McMillan <smcmillan at PLANALYTICS.COM>
> To: GRADSUSR at list.cineca.it
> Sent: Tue, 1 Sep 2009 11:23:28 -0500
> Subject: OACRES - Radii of Influence
>
>
>> What are the OACRES function's optional "radii of influence"?  Are they
>> length units and, if so, what?  If not, are they number of grid
>> cells/points...or something else?
>>
>> I could not find the answer, either in the Documentation Index
>> description, or in the User archives.
>>
>> Stephen McMillan
>>
>> ***************************************************
>> The information contained in this e-mail message is intended only for the use
>> of the recipient(s) named above and may contain information that is privileged,
>>  confidential, and/or proprietary.  If you are not the intended recipient, you
>> may not review, copy or distribute this message.  If you have received this
>> communication in error, please notify the sender immediately by e-mail, and
>> delete the original message. ***************************************************
>>
> ------- End of Original Message -------
>


From cathy.smith at NOAA.GOV  Wed Sep  2 12:16:39 2009
From: cathy.smith at NOAA.GOV (Cathy Smith)
Date: Wed, 2 Sep 2009 10:16:39 -0600
Subject: removing continent boundaries?
Message-ID: <WED.2.SEP.2009.101639.0600.>

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

All:

I'm having trouble figuring out how to remove continental (or other
land) boundaries. I have

    'set poly off'

in the (very long) code. I don't appear to turn them back on anywhere
else. I don't have mpdset set anywhere. Any ideas?

Thanks!

Cathy
- --
NOAA/ESRL PSD and CIRES CDC
303-497-6263
http://www.cdc.noaa.gov/people/cathy.smith/
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From ivtoman at INET.HR  Wed Sep  2 14:51:17 2009
From: ivtoman at INET.HR (Ivan Toman)
Date: Wed, 2 Sep 2009 20:51:17 +0200
Subject: GrADS bad speed performances
Message-ID: <WED.2.SEP.2009.205117.0200.>

Hello. I have very strange issue and help is greatly appreciated.

I run WRF-NMM 36-12-4km nesting and after model finishes I forward
output grib1 files to grads (1.9) from all three domains in successive
order. First, 36km domain is processed in GrADS, when it finish 12km
domain comes to work and when it finish, 4km go into GrADS at the end.

My problem is that GrADS has good performance only on 12km domain, on
other domains it is very and extremely slow. These are times for
creating map graphics from these domains:

36km - 40 seconds
12km - 6 seconds
4km - 105 seconds

It is very clear something very strange is going on. Why last domain
gribs files needs almost two minutes to postprocess in GrADS, when
intermediate domain gribs takes only 6 seconds to complete the same job?
Yes, for all three domains is executed completely same .gs script,
domain sizes are almost the same (in number of points), and GrADS don't
output any error or similar unusual messages on any domain. There are no
other CPU jobs that could slow down processing. GrADS use one CPU core
at 100% all of time during this hanging.

These times are for only 6 output gribs (still testing), I need to
extend forecast now to 60 hours, so there will be 10 times more data
than now is, if now GrADS process for 105 seconds then it will work 17.5
minutes to draw all needed maps from 4km domain?? This will become a
serious concern then.

Please, can anybody help me to resolve this problem?

Thanks


From rajkumar_62 at REDIFFMAIL.COM  Wed Sep  2 23:07:01 2009
From: rajkumar_62 at REDIFFMAIL.COM (Raj Kumar Sharma)
Date: Thu, 3 Sep 2009 03:07:01 -0000
Subject: viewing and conversion to ASCII
Message-ID: <THU.3.SEP.2009.030701.0000.>


Hi,I would like to plot and convert netCF data 2days.nc to ascii. however, I am unable to load it into grads.I am using Grads 2.0.a5.oga.3 in WINDOWS and LINUX. &nbsp;Some help will be useful. Data has been taken from NOAA site, so it should be compatible with GrADS.Thanks

Dr Raj Kumar
Scientist
&nbsp;
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From mmahakur at TROPMET.RES.IN  Thu Sep  3 02:18:01 2009
From: mmahakur at TROPMET.RES.IN (M.Mahakur)
Date: Thu, 3 Sep 2009 12:48:01 +0630
Subject: viewing and conversion to ASCII
In-Reply-To: <20090903030701.6351.qmail@f5mail-237-210.rediffmail.com>
Message-ID: <THU.3.SEP.2009.124801.0630.>

Respected Sir,

The problem I guess is due to x-cord which goes beyond 360 degree E i.e. from 20.5E to
419.5, if that can be taken care of ....??, it will work

*********************
dimensions:
        time = 3 ;
        depth = 1 ;
        lat = 120 ;
        lon = 400 ;
variables:
        float time(time) ;
                time:FORTRAN_format = " " ;
                time:units = "day since 2009-02-05 00:00:00" ;
                time:type = "EVEN" ;
        float depth(depth) ;
                depth:FORTRAN_format = " " ;
                depth:units = "m" ;
                depth:type = "EVEN" ;
                depth:epic_code = 3 ;
        float lat(lat) ;
                lat:FORTRAN_format = " " ;
                lat:units = "degrees-N" ;
                lat:type = "EVEN" ;
                lat:epic_code = 500 ;
        float lon(lon) ;
                lon:FORTRAN_format = " " ;
                lon:units = "degrees-E" ;
                lon:type = "EVEN" ;
                lon:epic_code = 502 ;
        float u(time, depth, lat, lon) ;
                u:name = "u" ;
                u:long_name = "Ocean Surface Zonal Currents" ;
                u:generic_name = "u" ;
                u:units = "meter/sec" ;
                u:missing_value = 0.f ;
        float v(time, depth, lat, lon) ;
                v:name = "v" ;
                v:long_name = "Ocean Surface Meridional Currents" ;
                v:generic_name = "v" ;
                v:units = "meter/sec" ;
                v:missing_value = 0.f ;

// global attributes:
                :VARIABLE = "Ocean Surface Currents" ;
                :DATATYPE = "5-Day Interval" ;
                :DATASUBTYPE = "unfiltered" ;
                :GEORANGE = "20.5E to 419.5E, 69.5S to 69.5N" ;
                :ANOM_MEAN_PERIOD = "1993-01-01 to 2006-12-31" ;
                :version = 2006.f ;
                :description = "Sea Surface Velocity" ;
                :source = "Gary Lagerloef, ESR (lager at esr.org) and Fabrice Bonjean
(bonjean at esr.org)" ;
                :contact = "Fabrice Bonjean (bonjean at esr.org) or John T. Gunn
(gunn at esr.org)" ;
                :company = "Earth & Space Research, Seattle, WA" ;
                :reference1 = "Bonjean F. and G.S.E. Lagerloef, 2002 ,\"Diagnostic model
and analysis of the surface currents in the tropical Pacific ocean\"
, J. Phys. Oceanogr., 32, 2,938-2,954" ;
                :date = "27-Apr-2007" ;
                :CREATION_DATE = "20:02  2-SEP-2009" ;
                :PERIOD = "1992-10-21 to 2009-09-01" ;
data:

 time = 0, 5, 10 ;

 depth = 15 ;

lon = 20.5, 21.5, 22.5, 23.5, 24.5, 25.5, 26.5, 27.5, 28.5, 29.5, 30.5,
    31.5, 32.5, 33.5, 34.5, 35.5, 36.5, 37.5, 38.5, 39.5, 40.5, 41.5, 42.5,
    43.5, 44.5, 45.5, 46.5, 47.5, 48.5, 49.5, 50.5, 51.5, 52.5, 53.5, 54.5,
    55.5, 56.5, 57.5, 58.5, 59.5, 60.5, 61.5, 62.5, 63.5, 64.5, 65.5, 66.5,
    67.5, 68.5, 69.5, 70.5, 71.5, 72.5, 73.5, 74.5, 75.5, 76.5, 77.5, 78.5,
    79.5, 80.5, 81.5, 82.5, 83.5, 84.5, 85.5, 86.5, 87.5, 88.5, 89.5, 90.5,
    91.5, 92.5, 93.5, 94.5, 95.5, 96.5, 97.5, 98.5, 99.5, 100.5, 101.5,
    102.5, 103.5, 104.5, 105.5, 106.5, 107.5, 108.5, 109.5, 110.5, 111.5,
    112.5, 113.5, 114.5, 115.5, 116.5, 117.5, 118.5, 119.5, 120.5, 121.5,
    122.5, 123.5, 124.5, 125.5, 126.5, 127.5, 128.5, 129.5, 130.5, 131.5,
    132.5, 133.5, 134.5, 135.5, 136.5, 137.5, 138.5, 139.5, 140.5, 141.5,
    142.5, 143.5, 144.5, 145.5, 146.5, 147.5, 148.5, 149.5, 150.5, 151.5,
    152.5, 153.5, 154.5, 155.5, 156.5, 157.5, 158.5, 159.5, 160.5, 161.5,
    162.5, 163.5, 164.5, 165.5, 166.5, 167.5, 168.5, 169.5, 170.5, 171.5,
    172.5, 173.5, 174.5, 175.5, 176.5, 177.5, 178.5, 179.5, 180.5, 181.5,
    182.5, 183.5, 184.5, 185.5, 186.5, 187.5, 188.5, 189.5, 190.5, 191.5,
    192.5, 193.5, 194.5, 195.5, 196.5, 197.5, 198.5, 199.5, 200.5, 201.5,
    202.5, 203.5, 204.5, 205.5, 206.5, 207.5, 208.5, 209.5, 210.5, 211.5,
    212.5, 213.5, 214.5, 215.5, 216.5, 217.5, 218.5, 219.5, 220.5, 221.5,
    222.5, 223.5, 224.5, 225.5, 226.5, 227.5, 228.5, 229.5, 230.5, 231.5,
    232.5, 233.5, 234.5, 235.5, 236.5, 237.5, 238.5, 239.5, 240.5, 241.5,
    242.5, 243.5, 244.5, 245.5, 246.5, 247.5, 248.5, 249.5, 250.5, 251.5,
    252.5, 253.5, 254.5, 255.5, 256.5, 257.5, 258.5, 259.5, 260.5, 261.5,
    262.5, 263.5, 264.5, 265.5, 266.5, 267.5, 268.5, 269.5, 270.5, 271.5,
    272.5, 273.5, 274.5, 275.5, 276.5, 277.5, 278.5, 279.5, 280.5, 281.5,
    282.5, 283.5, 284.5, 285.5, 286.5, 287.5, 288.5, 289.5, 290.5, 291.5,
    292.5, 293.5, 294.5, 295.5, 296.5, 297.5, 298.5, 299.5, 300.5, 301.5,
    302.5, 303.5, 304.5, 305.5, 306.5, 307.5, 308.5, 309.5, 310.5, 311.5,
    312.5, 313.5, 314.5, 315.5, 316.5, 317.5, 318.5, 319.5, 320.5, 321.5,
    322.5, 323.5, 324.5, 325.5, 326.5, 327.5, 328.5, 329.5, 330.5, 331.5,
    332.5, 333.5, 334.5, 335.5, 336.5, 337.5, 338.5, 339.5, 340.5, 341.5,
    342.5, 343.5, 344.5, 345.5, 346.5, 347.5, 348.5, 349.5, 350.5, 351.5,
    352.5, 353.5, 354.5, 355.5, 356.5, 357.5, 358.5, 359.5, 360.5, 361.5,
    362.5, 363.5, 364.5, 365.5, 366.5, 367.5, 368.5, 369.5, 370.5, 371.5,
    372.5, 373.5, 374.5, 375.5, 376.5, 377.5, 378.5, 379.5, 380.5, 381.5,
    382.5, 383.5, 384.5, 385.5, 386.5, 387.5, 388.5, 389.5, 390.5, 391.5,
    392.5, 393.5, 394.5, 395.5, 396.5, 397.5, 398.5, 399.5, 400.5, 401.5,
    402.5, 403.5, 404.5, 405.5, 406.5, 407.5, 408.5, 409.5, 410.5, 411.5,
    412.5, 413.5, 414.5, 415.5, 416.5, 417.5, 418.5, 419.5 ;


Eith Best Regards and Thanks,

--
M. Mahakur
IITM, Pune

---------- Original Message -----------
From: Raj Kumar Sharma <rajkumar_62 at REDIFFMAIL.COM>
To: GRADSUSR at list.cineca.it
Sent: Thu, 3 Sep 2009 03:07:01 -0000
Subject: viewing and conversion to ASCII

> Hi,I would like to plot and convert netCF data 2days.nc to ascii. however, I
> am unable to load it into grads.I am using Grads 2.0.a5.oga.3 in WINDOWS and
> LINUX. &nbsp;Some help will be useful. Data has been taken from NOAA site, so
> it should be compatible with GrADS.Thanks
>
> Dr Raj Kumar
> Scientist
> &nbsp;
------- End of Original Message -------


From pauli.j.jokinen at HELSINKI.FI  Thu Sep  3 08:22:26 2009
From: pauli.j.jokinen at HELSINKI.FI (Pauli Jokinen)
Date: Thu, 3 Sep 2009 15:22:26 +0300
Subject: Varying timeframe in the ctl-file
Message-ID: <THU.3.SEP.2009.152226.0300.>

Hi,

I have a single grib file that contains gridded data from consecutive
years between May and August (e.g. May 1960-August 1960, May
1961-August 1961 etc.).
Is there a way to write a single ctl-file that recognizes this? Now
when I open the ctl-file and go through the time steps it assumes a
linear time scale and continues with September even though I'd want it
to "jump" to May the following year.

I know I can come around the problem by chopping the file (with the
fwrite command) for each year and writing a new, separate ctl-file for
each. As I have several decades of data, I was wondering if someone
has an idea to do this in a quicker way.

Best regards,
Pauli Jokinen
Finnish Meteorological Institute


From hc.nnamchi at LASG.IAP.AC.CN  Thu Sep  3 12:16:43 2009
From: hc.nnamchi at LASG.IAP.AC.CN (Hyacinth Cyprain Nnamchi)
Date: Fri, 4 Sep 2009 00:16:43 +0800
Subject: Meridional average of pressure levels data
Message-ID: <FRI.4.SEP.2009.001643.0800.>

Dear GRADS Users,

I have the NCEP-2 monthly data at 2.5x2.5 lon/lat for 17 vertical levels

I want to calculate the meridional average for lon=-60 lon=10 such that the new data wil be of the form:
lon =1
lat = -90 90
lev= 1 17
time =t1 tlast (1979-2007)

Can anyone help with some ideas?

Thanks in advance,
hyacinth


From dotdeb at GMAIL.COM  Fri Sep  4 04:12:08 2009
From: dotdeb at GMAIL.COM (Dot Deb)
Date: Fri, 4 Sep 2009 10:12:08 +0200
Subject: 2.0.a7.1 segmentation fault when opening a netcdf dataset
In-Reply-To: <58a4fe090908190425w1dc87abbs3c3b3b90a23d04ce@mail.gmail.com>
Message-ID: <FRI.4.SEP.2009.101208.0200.>

Sorry for insisting, but I still have problems with grads built from
source on a debian/sid i686. The built binary crashes when "sdfopening"
a netcdf file. The same file is correctly opened using the pre-compiled
ubuntu version.

The only thing I noticed during compilation, is a bunch of warning (I
can provide the make.log if necessary).

Alberto

On Wed, Aug 19, 2009 at 1:25 PM, Dot Deb<dotdeb at gmail.com> wrote:
> I compiled grads (2.0.a7.1) myself and, when "sdfopen" a netcdf
> dataset, it segfaults.
> If I install pre-compiled (ubuntu-8.04) binaries, the same dataset is
> opened without any problem.
> The same if i "open" the netcdf dataset by mean of an appropriate
> "ctl": it works.
>
> Any idea? Anything I can do to help spotting the problem?
> Alberto
>


From dotdeb at GMAIL.COM  Fri Sep  4 04:19:18 2009
From: dotdeb at GMAIL.COM (Dot Deb)
Date: Fri, 4 Sep 2009 10:19:18 +0200
Subject: 2.0.a7.1 segmentation fault when opening a netcdf dataset:
 further info
Message-ID: <FRI.4.SEP.2009.101918.0200.>

The same problem on a debian/lenny (stable).
gcc versions are:
- lenny: 4.3.2
- sid: 4.3.4

libnetcdf4 versions is 1:3.6 for both.

Alberto

On Fri, Sep 4, 2009 at 10:12 AM, Dot Deb<dotdeb at gmail.com> wrote:
> Sorry for insisting, but I still have problems with grads built from
> source on a debian/sid i686. The built binary crashes when "sdfopening"
> a netcdf file. The same file is correctly opened using the pre-compiled
> ubuntu version.
>
> The only thing I noticed during compilation, is a bunch of warning (I
> can provide the make.log if necessary).
>
> Alberto
>
> On Wed, Aug 19, 2009 at 1:25 PM, Dot Deb<dotdeb at gmail.com> wrote:
>> I compiled grads (2.0.a7.1) myself and, when "sdfopen" a netcdf
>> dataset, it segfaults.
>> If I install pre-compiled (ubuntu-8.04) binaries, the same dataset is
>> opened without any problem.
>> The same if i "open" the netcdf dataset by mean of an appropriate
>> "ctl": it works.
>>
>> Any idea? Anything I can do to help spotting the problem?
>> Alberto
>>
>


From lbyerle at YAHOO.COM  Fri Sep  4 09:47:23 2009
From: lbyerle at YAHOO.COM (Lee and Amy Byerle)
Date: Fri, 4 Sep 2009 06:47:23 -0700
Subject: Meridional average of pressure levels data
In-Reply-To: <11463417.228981251994603182.JavaMail.coremail@mail3.iap.ac.cn>
Message-ID: <FRI.4.SEP.2009.064723.0700.>

Hyacinth,

How about:

open rean2.ctl
set z 1 17
set lon -60 10
set t varying (t1 to tlast)

define umer=ave(uwnd,lon=-90,lon=90)
set lon 1  (so that only lat, lev, and time are varying)
d umer  (loops through all times, plots lat vs z-dim)

Best regards,
Lee

On Sep 3, 2009, at 9:16 AM, Hyacinth Cyprain Nnamchi wrote:

> Dear GRADS Users,
>
> I have the NCEP-2 monthly data at 2.5x2.5 lon/lat for 17 vertical
> levels
>
> I want to calculate the meridional average for lon=-60 lon=10 such
> that the new data wil be of the form:
> lon =1
> lat = -90 90
> lev= 1 17
> time =t1 tlast (1979-2007)
>
> Can anyone help with some ideas?
>
> Thanks in advance,
> hyacinth


From jma at COLA.IGES.ORG  Fri Sep  4 14:48:51 2009
From: jma at COLA.IGES.ORG (Jennifer Adams)
Date: Fri, 4 Sep 2009 14:48:51 -0400
Subject: Reminder: x85_64 Multithreading / GrADS on SMP machines
In-Reply-To: <4A924C8E.3000408@gofferje.homelinux.org>
Message-ID: <FRI.4.SEP.2009.144851.0400.>

GrADS in its current form does not support multi-threading. The thing
to do is have multiple instances of GrADS running at the same time.
Divide your chart rendering into sections and generate images in
parallel.
--Jennifer



On Aug 24, 2009, at 4:17 AM, Stefan Gofferje wrote:

> Hi all,
>
> I have a new machine for my chart rendering which has a AMD Phenom
> triple core processor and I'm using the grads-2.0.a6-bin-RHEL4-x86_64
> package from IGES FTP.
> The normal load of the machine is 3 when GrADS is not running and 4
> when
> the rendering runs. According to my statistics, the CPU load never
> goes
> over 30-something percent when GrADS is running. That makes me suppose
> that GrADS does not support multithreading.

>
> Stats:
> http://www.saakeskus.fi/images/kload.png
> http://www.saakeskus.fi/images/kcpustat.png
>
> As chart-rendering is a very CPU-intensive thing, I think,
> multithreading would be a very practical thing as most modern machines
> have multicore CPUs... Especially if you are rendering roughly 3500
> charts every 6 hours :).

> Terve,
> Stefan
>
> --
> Last words of a stormchaser:
> "Where is that rotation on the radar?!"

--
Jennifer M. Adams
IGES/COLA
4041 Powder Mill Road, Suite 302
Calverton, MD 20705
jma at cola.iges.org



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From jma at COLA.IGES.ORG  Fri Sep  4 14:50:23 2009
From: jma at COLA.IGES.ORG (Jennifer Adams)
Date: Fri, 4 Sep 2009 14:50:23 -0400
Subject: Sorting Issue
In-Reply-To: <4A93B86002000087000DAC6B@gwiasmtp.uct.ac.za>
Message-ID: <FRI.4.SEP.2009.145023.0400.>

We are working on a design for adding sorting capabilities to GrADS.
Until then, you have to do it externally. --Jennifer


On Aug 25, 2009, at 4:09 AM, Oliver ANGELIL wrote:

> Hi,
>
> I am working with Station Data files in GrADS 1.8.
>
> X , Y varying (horizontal X, Y plot)
> Z = 1
> T varying (360 days)
>
> Each pixel displays a colour coded value for precipitation. I'm
> trying to sort precipitation from least to most, for each pixel,
> through the time series. This is because I want to display an image
> of the 90th percentile, to work out a vague probability of extreme
> weather at each pixel.
>
> How would I go about sorting in GrADS? I am relatively new to GrADS.
>
> Oliver
>
> ______________________________________________________________________________________________
>
>
> UNIVERSITY OF CAPE TOWN
>
>
> This e-mail is subject to the UCT ICT policies and e-mail disclaimer
> published on our website at http://www.uct.ac.za/about/policies/emaildisclaimer/
>  or obtainable from +27 21 650 4500. This e-mail is intended only
> for the person(s) to whom it is addressed. If the e-mail has reached
> you in error, please notify the author. If you are not the intended
> recipient of the e-mail you may not use, disclose, copy, redirect or
> print the content. If this e-mail is not related to the business of
> UCT it is sent by the sender in the sender's individual capacity.
>
>
> _____________________________________________________________________________________________________
>

--
Jennifer M. Adams
IGES/COLA
4041 Powder Mill Road, Suite 302
Calverton, MD 20705
jma at cola.iges.org



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From jma at COLA.IGES.ORG  Fri Sep  4 14:52:02 2009
From: jma at COLA.IGES.ORG (Jennifer Adams)
Date: Fri, 4 Sep 2009 14:52:02 -0400
Subject: setting scale_factor
In-Reply-To: <Pine.LNX.4.63L0.0908251248580.20577@mail.meto.umd.edu>
Message-ID: <FRI.4.SEP.2009.145202.0400.>

Use the "UNPACK" entry in your descriptor file.
http://grads.iges.org/grads/gadoc/descriptorfile.html#unpack
--Jennifer


On Aug 25, 2009, at 12:53 PM, Semyon Grodsky wrote:

> Folks,
> is there a way to set SCALE_FACTOR value in CTL file for netcdf data.
> SCALE_FACTOR is written as a character in netcdf.
> Thanks,
> --Senya
>
> -----------------------------------------------------------
> Semyon Grodsky
> Computer and Space Science Building (Bldg. #224), Room 2409
> Department of Atmospheric and Oceanic Science
> University of Maryland
> College Park, MD 20742
>
> Phone:  301-405-5330
> Fax:    301-314-9482
> E-mail: senya at atmos.umd.edu

--
Jennifer M. Adams
IGES/COLA
4041 Powder Mill Road, Suite 302
Calverton, MD 20705
jma at cola.iges.org



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From dhaval.prajapati at ICCSIR.ORG  Sat Sep  5 03:25:09 2009
From: dhaval.prajapati at ICCSIR.ORG (Dhaval Prajapati)
Date: Sat, 5 Sep 2009 07:25:09 +0000
Subject: 13 point Gaussian Filter
Message-ID: <SAT.5.SEP.2009.072509.0000.>


Dear All,

There is command in grads smth9 which will smooth out the time series.
I want to use13 point Gaussian filter.
Do anybody has script file for 13 point Gaussian filter.

With Regards,

Dhaval
Indian Centre for Climate and Societal Impacts Research (ICCSIR)
Ahmedabad Education Society compound,
Opp. H.L. Commerce College,
Navrangpura,
Ahmedabad 380 009,
Gujarat,
India
Contact No. : +91(079)40045462




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From amjadozi at GMAIL.COM  Sat Sep  5 07:08:25 2009
From: amjadozi at GMAIL.COM (Muhammad Amjad)
Date: Sat, 5 Sep 2009 16:08:25 +0500
Subject: Regarding .CDF file display in grads
In-Reply-To: <122503.31373.qm@web112418.mail.gq1.yahoo.com>
Message-ID: <SAT.5.SEP.2009.160825.0500.>

First open a linux shell and then

gradsnc
sdfopen file_name
q file
d var

Cheers
Amjad.


On Mon, Aug 31, 2009 at 1:36 PM, mizanur rahman <mrahman426 at yahoo.com>wrote:

>   Dear sir
> I would like to introduce myself to you. I am a researcher in the field of
> Meteorology. I downloaded CRU data from ICTP web site that is linked with
> the CRU web site. This CRU data is CRUPRE.CDF fomat. How do display .CRF
> file in Grads? I know how to display .nc file in grads but I tried several
> times to display in grads to .CDF file but I could not success.
> Please let me know how to display .CDF file in grads.
>
> Best  wishes
>
>
> Rahman
>
> Bangladesh
>
>
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From romero619 at HOTMAIL.COM  Sat Sep  5 23:21:23 2009
From: romero619 at HOTMAIL.COM (P.R.)
Date: Sat, 5 Sep 2009 22:21:23 -0500
Subject: reverse FWRITE order
Message-ID: <SAT.5.SEP.2009.222123.0500.>

Hi,
I need to fwrite in 'y-reverse' order (WE:NS instead of WE:SN).
Is this possible?

Thanks,
P.R.


From mrahman426 at YAHOO.COM  Sun Sep  6 00:42:09 2009
From: mrahman426 at YAHOO.COM (mizanur rahman)
Date: Sat, 5 Sep 2009 21:42:09 -0700
Subject: Regarding .CDF file display in grads
In-Reply-To: <6142b78e0909050408n1eb4dad0gb54e7f31b8f7574@mail.gmail.com>
Message-ID: <SAT.5.SEP.2009.214209.0700.>

Dear Amjad
I tried several times to display CRUPRE.CDF file in grads but I could nor success.
I opened grads by gradsnc
and wrote: ga> sdfopen CRUPRE.CDF then it shows faliure and also shows you try SDF-HDF.

I am giving the path of CRU data please download and display CRUPRE.CDF in your computer.

http://users.ictp.it/RegCNET/postproc.html#CRU? 

(precipitation monthly mean mm/day, file name is CRUPRE.CDF)

Please let me know what is happing.

regards

Rahman


--- On Sat, 9/5/09, Muhammad Amjad <amjadozi at GMAIL.COM> wrote:

From: Muhammad Amjad <amjadozi at GMAIL.COM>
Subject: Re: Regarding .CDF file display in grads
To: GRADSUSR at LIST.CINECA.IT
Date: Saturday, September 5, 2009, 4:08 AM

First open a linux shell and then
?
gradsnc
sdfopen file_name
q file
d var
?
Cheers
Amjad.

?
On Mon, Aug 31, 2009 at 1:36 PM, mizanur rahman <mrahman426 at yahoo.com> wrote:






Dear sir

I would like to introduce myself to you. I am a researcher in the field of Meteorology.?I downloaded CRU data from ICTP web site that is linked with the CRU web site. This CRU data is CRUPRE.CDF fomat. How do display .CRF file?in Grads? I know how to display .nc file in grads but I tried several times to display in grads to .CDF file but I could not success.

Please let me know how to display .CDF file in grads.

Best? wishes




Rahman

Bangladesh 






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From webmaster at METEOROLOGIC.NET  Sun Sep  6 04:21:28 2009
From: webmaster at METEOROLOGIC.NET (Jeremy Gaultier)
Date: Sun, 6 Sep 2009 10:21:28 +0200
Subject: Draw non filled polygon
Message-ID: <SUN.6.SEP.2009.102128.0200.>

Hi,

I draw a filled with 'draw polyf' but i would like draw a non filled polygon
(i tried 'draw mappoly' and 'draw poly' but not work).

I have another question, how to ensure for the polygon it behing the data
(shaded, contour) as a background map ?

Thank you in advance.

Best regards,
J?r?my


From smcmillan at PLANALYTICS.COM  Sun Sep  6 15:06:47 2009
From: smcmillan at PLANALYTICS.COM (Stephen R McMillan)
Date: Sun, 6 Sep 2009 14:06:47 -0500
Subject: Draw non filled polygon
In-Reply-To: <20090906082244.CE119203A8@mx2.cineca.it>
Message-ID: <SUN.6.SEP.2009.140647.0500.>

J?r?my,

You can draw a non-filled polygon by using "draw line...." (see 
http://iges.org/grads/gadoc/gradcomddrawline.html).

If I understand your second question correctly, to ensure a polygon is 
behind contours or shading, first draw the polygon(s) and then display 
your data.  However, keep in mind the shading may obscure your polygons.

Stephen



Jeremy Gaultier <webmaster at METEOROLOGIC.NET> 
Sent by: GRADSUSR at LIST.CINECA.IT
09/06/2009 03:21 AM
Please respond to
GRADSUSR at LIST.CINECA.IT


To
GRADSUSR at LIST.CINECA.IT
cc

Subject
Draw non filled polygon





Hi,

I draw a filled with 'draw polyf' but i would like draw a non filled 
polygon
(i tried 'draw mappoly' and 'draw poly' but not work).

I have another question, how to ensure for the polygon it behing the data
(shaded, contour) as a background map ?

Thank you in advance.

Best regards,
J?r?my




***************************************************
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From kwmski7 at SNU.AC.KR  Tue Sep  8 04:17:06 2009
From: kwmski7 at SNU.AC.KR (Kim WonMoo)
Date: Tue, 8 Sep 2009 17:17:06 +0900
Subject: Meridional average of pressure levels data
In-Reply-To: <11463417.228981251994603182.JavaMail.coremail@mail3.iap.ac.cn>
Message-ID: <TUE.8.SEP.2009.171706.0900.>

Use "define" ^^

e.g.,

>set x 1
>set lat -90 90
>set z 1 17
>set t 1 last

then define,

>define lonave=ave(var,lon=-60,lon=10)

good luck,
Kim, WonMoo

--------------------------------------------------
From: "Hyacinth Cyprain Nnamchi" <hc.nnamchi at LASG.IAP.AC.CN>
Sent: Friday, September 04, 2009 1:16 AM
To: <GRADSUSR at LIST.CINECA.IT>
Subject:      Meridional average of pressure levels data

> Dear GRADS Users,
>
> I have the NCEP-2 monthly data at 2.5x2.5 lon/lat for 17 vertical levels
>
> I want to calculate the meridional average for lon=-60 lon=10 such that
> the new data wil be of the form:
> lon =1
> lat = -90 90
> lev= 1 17
> time =t1 tlast (1979-2007)
>
> Can anyone help with some ideas?
>
> Thanks in advance,
> hyacinth
>
>
>


From hc.nnamchi at LASG.IAP.AC.CN  Tue Sep  8 09:14:29 2009
From: hc.nnamchi at LASG.IAP.AC.CN (Hyacinth Cyprain Nnamchi)
Date: Tue, 8 Sep 2009 21:14:29 +0800
Subject: Meridional average of pressure levels data
In-Reply-To: <3C8BCC026F194149AE56D5D22FCDB5E0@KimWonMooPC>
Message-ID: <TUE.8.SEP.2009.211429.0800.>

Dea Li and Kim,
Thanks alot. Kim's simple code works perfectly well.

hyacinth




>-----????-----
> ???: "Kim WonMoo" <kwmski7 at SNU.AC.KR>
> ????: 2009-09-08 16:17:06
> ???: GRADSUSR at LIST.CINECA.IT
> ??:
> ??: Re: Meridional average of pressure levels data
> Use "define" ^^
>
>
>
> e.g.,
>
>
>
> >set x 1
>
> >set lat -90 90
>
> >set z 1 17
>
> >set t 1 last
>
>
>
> then define,
>
>
>
> >define lonave=ave(var,lon=-60,lon=10)
>
>
>
> good luck,
>
> Kim, WonMoo
>
>
>
> --------------------------------------------------
>
> From: "Hyacinth Cyprain Nnamchi" <hc.nnamchi at LASG.IAP.AC.CN>
>
> Sent: Friday, September 04, 2009 1:16 AM
>
> To: <GRADSUSR at LIST.CINECA.IT>
>
> Subject:      Meridional average of pressure levels data
>
>
>
> > Dear GRADS Users,
>
> >
>
> > I have the NCEP-2 monthly data at 2.5x2.5 lon/lat for 17 vertical levels
>
> >
>
> > I want to calculate the meridional average for lon=-60 lon=10 such that
>
> > the new data wil be of the form:
>
> > lon =1
>
> > lat = -90 90
>
> > lev= 1 17
>
> > time =t1 tlast (1979-2007)
>
> >
>
> > Can anyone help with some ideas?
>
> >
>
> > Thanks in advance,
>
> > hyacinth
>
> >
>
> >
>
> >
>
>

--

Hyacinth C. Nnamchi
TWAS-CAS Fellow
State Key Laboratory of Numerical Modeling for
Atmospheric Sciences and Geophysical Fluid Dynamics (LASG)
Institute of Atmospheric Physics (IAP)
Chinese Academy of Sciences (CAS)
P.O.Box 9804, Beijing 100029, China
Tel: +86-13488719702
Fax: +86-10-82995172
E-mail:hc.nnamchi at lasg.iap.ac.cn


From steve.levine.1523 at GMAIL.COM  Tue Sep  8 10:45:53 2009
From: steve.levine.1523 at GMAIL.COM (Steve Levine)
Date: Tue, 8 Sep 2009 10:45:53 -0400
Subject: Hurricane Tracking Script
Message-ID: <TUE.8.SEP.2009.104553.0400.>

Fellow GrADS users,


From Wesley.Ebisuzaki at NOAA.GOV  Tue Sep  8 13:47:22 2009
From: Wesley.Ebisuzaki at NOAA.GOV (Wesley Ebisuzaki)
Date: Tue, 8 Sep 2009 13:47:22 -0400
Subject: Lats4d with GrADS 2
In-Reply-To: <20090901154216.F00562070B@mx2.cineca.it>
Message-ID: <TUE.8.SEP.2009.134722.0400.>

Igor G?mez wrote:
> Hi GrADS users,
>
> I have a question related to Lats4d usage with GrADS 2. We want to convert
> netcdf files to grib, but GrADS 2 does not include the LATS option. Is there
> still any possibility to do this?
>
> Thank you very much in advance.
>
> Igor.
>
Igor,

Emily Becker is finishing off a grads script that creates grib2 files
from GrADS readable files.
Needs some polishing and documentation but I had no problems converting
MERRA (HDF)
files into grib2 using an earlier version.   The wgrib2 home page will
have more details
when available.

          Wesley Ebisuzaki


From amjadozi at GMAIL.COM  Tue Sep  8 23:35:51 2009
From: amjadozi at GMAIL.COM (Muhammad Amjad)
Date: Wed, 9 Sep 2009 08:35:51 +0500
Subject: Regarding .CDF file display in grads
In-Reply-To: <762772.98220.qm@web112405.mail.gq1.yahoo.com>
Message-ID: <WED.9.SEP.2009.083551.0500.>

Dear Rehman,

Your CRUPRE.CDF file probably has some problem. Please download it again and
make sure that it has been downloaded completely by checking it size etc.

Then follow the same procedure.

I hope it will help.

Cheers,

Amjad.

On Sun, Sep 6, 2009 at 9:42 AM, mizanur rahman <mrahman426 at yahoo.com> wrote:

> Dear Amjad
> I tried several times to display CRUPRE.CDF file in grads but I could nor
> success.
> I opened grads by gradsnc
> and wrote: ga> sdfopen CRUPRE.CDF then it shows faliure and also shows you
> try SDF-HDF.
>
> I am giving the path of CRU data please download and display CRUPRE.CDF in
> your computer.
>
> http://users.ictp.it/RegCNET/postproc.html#CRU
>
> (precipitation monthly mean mm/day, file name is CRUPRE.CDF)
>
> Please let me know what is happing.
>
> regards
>
> Rahman
>
>
> --- On *Sat, 9/5/09, Muhammad Amjad <amjadozi at GMAIL.COM>* wrote:
>
>
> From: Muhammad Amjad <amjadozi at GMAIL.COM>
> Subject: Re: Regarding .CDF file display in grads
> To: GRADSUSR at LIST.CINECA.IT
> Date: Saturday, September 5, 2009, 4:08 AM
>
>
> First open a linux shell and then
>
> gradsnc
> sdfopen file_name
> q file
> d var
>
> Cheers
> Amjad.
>
>
> On Mon, Aug 31, 2009 at 1:36 PM, mizanur rahman <mrahman426 at yahoo.com<http://mc/compose?to=mrahman426 at yahoo.com>
> > wrote:
>
>>   Dear sir
>> I would like to introduce myself to you. I am a researcher in the field of
>> Meteorology. I downloaded CRU data from ICTP web site that is linked with
>> the CRU web site. This CRU data is CRUPRE.CDF fomat. How do display .CRF
>> file in Grads? I know how to display .nc file in grads but I tried
>> several times to display in grads to .CDF file but I could not success.
>> Please let me know how to display .CDF file in grads.
>>
>> Best  wishes
>>
>>
>>  Rahman
>>
>> Bangladesh
>>
>>
>
>
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From kwmski7 at SNU.AC.KR  Wed Sep  9 05:14:27 2009
From: kwmski7 at SNU.AC.KR (Kim WonMoo)
Date: Wed, 9 Sep 2009 18:14:27 +0900
Subject: removing continent boundaries?
In-Reply-To: <4A9E9A67.6070209@noaa.gov>
Message-ID: <WED.9.SEP.2009.181427.0900.>

Hi,

Have you tried 'set mpdraw off' ?

try

>set mpdraw off

just before you draw something~

Good luck,
Kim, WonMoo

--------------------------------------------------
From: "Cathy Smith" <cathy.smith at NOAA.GOV>
Sent: Thursday, September 03, 2009 1:16 AM
To: <GRADSUSR at LIST.CINECA.IT>
Subject:      removing continent boundaries?

> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> All:
>
> I'm having trouble figuring out how to remove continental (or other
> land) boundaries. I have
>
>    'set poly off'
>
> in the (very long) code. I don't appear to turn them back on anywhere
> else. I don't have mpdset set anywhere. Any ideas?
>
> Thanks!
>
> Cathy
> - --
> NOAA/ESRL PSD and CIRES CDC
> 303-497-6263
> http://www.cdc.noaa.gov/people/cathy.smith/
> -----BEGIN PGP SIGNATURE-----
> Version: GnuPG v1.4.9 (Darwin)
>
> iEYEARECAAYFAkqemmcACgkQFiO7KzMhjURs+wCfWkrwx9cko3b/R9r19USImCMi
> qIMAoIna2A1F0lYRfz5pdmYx6MQ/sjz+
> =bbsL
> -----END PGP SIGNATURE-----
>
>
>


From Reto.Stauffer at STUDENT.UIBK.AC.AT  Wed Sep  9 07:03:32 2009
From: Reto.Stauffer at STUDENT.UIBK.AC.AT (Reto Stauffer)
Date: Wed, 9 Sep 2009 13:03:32 +0200
Subject: Variable Grid possible?
In-Reply-To: <06244E2E5B3B439DADCBAC7AA89EE76D@KimWonMooPC>
Message-ID: <WED.9.SEP.2009.130332.0200.>

Hy there

I try to plot some Satellite-Data with Grads. It was "no problem" to produce a
netCDF file wich i can import into GrADS and display the test-dataset.

But now i have a question up to you. Normaly GrADS plots only onto a linear
Grid. My netCDF-File only contains a one-line-vector with longitude and
latitude boundries.

Is there any possibility to import long/lat as a 2-D matrix wich discribes my
own grid? I cannot found any good information about that.

Test-Dataset, int [0;10] with own colormap:
http://dudecom.ch/satpress/wp-content/uploads/2009/09/20090909_grads_colormapexample-543x400.png

If anyone has an idea it wold be great to send me a request.

Best regards
Reto, Austria


From mike.bosilovich at GMAIL.COM  Wed Sep  9 13:06:11 2009
From: mike.bosilovich at GMAIL.COM (Mike Bosilovich)
Date: Wed, 9 Sep 2009 13:06:11 -0400
Subject: Hurricane Tracking Script
In-Reply-To: <c406ebe60909080745v27c794dck1b713d267feb9ff1@mail.gmail.com>
Message-ID: <WED.9.SEP.2009.130611.0400.>

Hi Steve,

Here is a pretty simple tracking script I worked up for the MERRA
workshop we had at the last AMS meeting.

ftp://gmaoftp.gsfc.nasa.gov/pub/papers/mikeb/MERRA_Workshop/merra/Andrew/

It reads the best track ascii file, and does a couple nice things,
like let you choose where in the file you want to plot (if not the
whole track) and also changes the dots at 00Z so you can see new days.
However, at the heart is a simple read and connect the dots.

Good Luck,

Mike

On Tue, Sep 8, 2009 at 10:45 AM, Steve
Levine<steve.levine.1523 at gmail.com> wrote:
> Fellow GrADS users,
>
> From what I have seen roaming through the archives, there is a hurricane
> track plotting script out there.  More specifically, I am looking for
> something that simply plots and connects the lat/lon points from an input
> file.  Does anybody have it and would they care to pass it along?
>
> Thank you,
> Steve Levine
> MS Student, Department of Marine & Environmental Systems
> Florida Institute of Technology
> 150 W University Blvd.
> Melbourne, FL 32901
> Ph: 513-520-9883
>


From jgmsantos at GMAIL.COM  Wed Sep  9 13:23:18 2009
From: jgmsantos at GMAIL.COM (Guilherme Martins)
Date: Wed, 9 Sep 2009 14:23:18 -0300
Subject: Hurricane Tracking Script
In-Reply-To: <79aecae70909091006v49065b3bk787af2c2ccf2c64e@mail.gmail.com>
Message-ID: <WED.9.SEP.2009.142318.0300.>

I'd like to obtain this script to draw the hurricane track but I can't
access the ftp.

Thanks,

Guilherme.

2009/9/9 Mike Bosilovich <mike.bosilovich at gmail.com>

> Hi Steve,
>
> Here is a pretty simple tracking script I worked up for the MERRA
> workshop we had at the last AMS meeting.
>
> ftp://gmaoftp.gsfc.nasa.gov/pub/papers/mikeb/MERRA_Workshop/merra/Andrew/
>
> It reads the best track ascii file, and does a couple nice things,
> like let you choose where in the file you want to plot (if not the
> whole track) and also changes the dots at 00Z so you can see new days.
> However, at the heart is a simple read and connect the dots.
>
> Good Luck,
>
> Mike
>
> On Tue, Sep 8, 2009 at 10:45 AM, Steve
> Levine<steve.levine.1523 at gmail.com> wrote:
> > Fellow GrADS users,
> >
> > From what I have seen roaming through the archives, there is a hurricane
> > track plotting script out there.  More specifically, I am looking for
> > something that simply plots and connects the lat/lon points from an input
> > file.  Does anybody have it and would they care to pass it along?
> >
> > Thank you,
> > Steve Levine
> > MS Student, Department of Marine & Environmental Systems
> > Florida Institute of Technology
> > 150 W University Blvd.
> > Melbourne, FL 32901
> > Ph: 513-520-9883
> >
>



-- 
-----------------------------------------------------------
Jos? Guilherme Martins dos Santos
Grupo de Modelagem da Atmosfera e Interfaces - GMAI
Divis?o de Modelagem e Desenvolvimento
Centro de Previs?o de Tempo e Estudos Clim?ticos    -  INPE
Rodovia Presidente Dutra, km 39   -    CEP 12630-000
Cachoeira Paulista, SP, Brasil
Telefone(CP): +55 12 3185 8529 / Celular: +55 12 91678770
E-mail: guilherme.martins at cptec.inpe.br
E-mail alternativo: jgmsantos at gmail.com
Homepage: http://jgmsantos.googlepages.com/index.html:
-----------------------------------------------------------
Sent from S?o Jos? dos Campos, S?o Paulo, Brasil
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From fdaryabor at GOOGLEMAIL.COM  Thu Sep 10 00:21:18 2009
From: fdaryabor at GOOGLEMAIL.COM (Farshid Daryabor)
Date: Thu, 10 Sep 2009 12:21:18 +0800
Subject: converting binary to netcdf
Message-ID: <THU.10.SEP.2009.122118.0800.>

Dear All User
I have binary data  ".dat"  I want convert it to netcdf  ".nc" by using
grads, I create control file ".ctl" for it , is it ok. After that I use this
command for convert to ".nc"
"set   gxout   fwrite"
"set   fwrite    my_data.nc"

but not working, could you help me for solving this problem.

Best Regards
F.Daryabor

Center for Tropical and Climate Change System
Faculty of Sciences and Technology
National University of Malaysia (UKM)
Bangi 43600
Selangor
Malaysia
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From zjuyanlibin at 163.COM  Thu Sep 10 00:41:26 2009
From: zjuyanlibin at 163.COM (=?utf-8?B?WWFuIExpYmlu?=)
Date: Thu, 10 Sep 2009 12:41:26 +0800
Subject: =?utf-8?B?UmU6IGNvbnZlcnRpbmcgYmluYXJ5IHRvIG5ldGNkZg==?=
Message-ID: <THU.10.SEP.2009.124126.0800.>

fwrite is used for converting data read by GrADS to binary data.
It does not work referring to converting into netcdf file.

2009-09-10 



Yan Libin 



???? Farshid Daryabor 
????? 2009-09-10  12:31:59 
???? GRADSUSR 
??? 
??? converting binary to netcdf 
 
Dear All User
I have binary data  ".dat"  I want convert it to netcdf  ".nc" by using grads, I create control file ".ctl" for it , is it ok. After that I use this command for convert to ".nc"
"set   gxout   fwrite"
"set   fwrite    my_data.nc"

but not working, could you help me for solving this problem.

Best Regards
F.Daryabor

Center for Tropical and Climate Change System
Faculty of Sciences and Technology 
National University of Malaysia (UKM)
Bangi 43600
Selangor
Malaysia
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From fdaryabor at GOOGLEMAIL.COM  Thu Sep 10 02:01:38 2009
From: fdaryabor at GOOGLEMAIL.COM (Farshid Daryabor)
Date: Thu, 10 Sep 2009 14:01:38 +0800
Subject: converting binary to netcdf
In-Reply-To: <200909101241257343913@163.com>
Message-ID: <THU.10.SEP.2009.140138.0800.>

Dear Yan
I find a script "lats4d.gs" in grads but can't download it for using.
do you any suggestion.
Best Regards
F.Daryabor


On Thu, Sep 10, 2009 at 12:41 PM, Yan Libin <zjuyanlibin at 163.com> wrote:

>  fwrite is used for converting data read by GrADS to binary data.
> It does not work referring to converting into netcdf file.
>
> 2009-09-10
> ------------------------------
>  Yan Libin
> ------------------------------
> *????* Farshid Daryabor
> *?????* 2009-09-10  12:31:59
> *????* GRADSUSR
> *???*
> *???* converting binary to netcdf
>  Dear All User
> I have binary data  ".dat"  I want convert it to netcdf  ".nc" by using
> grads, I create control file ".ctl" for it , is it ok. After that I use this
> command for convert to ".nc"
> "set   gxout   fwrite"
> "set   fwrite    my_data.nc"
>
> but not working, could you help me for solving this problem.
>
> Best Regards
> F.Daryabor
>
> Center for Tropical and Climate Change System
> Faculty of Sciences and Technology
> National University of Malaysia (UKM)
> Bangi 43600
> Selangor
> Malaysia
>
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From zjuyanlibin at 163.COM  Thu Sep 10 05:28:30 2009
From: zjuyanlibin at 163.COM (Yan Libin)
Date: Thu, 10 Sep 2009 17:28:30 +0800
Subject: converting binary to netcdf
Message-ID: <THU.10.SEP.2009.172830.0800.>

attached plz find the script you needed.
ps: are you a boy or a girl


2009-09-10 



Yan Libin 



???? Farshid Daryabor 
????? 2009-09-10  17:24:32 
???? GRADSUSR 
??? 
??? Re: converting binary to netcdf 
 
Dear Yan
I find a script "lats4d.gs" in grads but can't download it for using.
do you any suggestion.
Best Regards
F.Daryabor



On Thu, Sep 10, 2009 at 12:41 PM, Yan Libin <zjuyanlibin at 163.com> wrote:

fwrite is used for converting data read by GrADS to binary data.
It does not work referring to converting into netcdf file.

2009-09-10 



Yan Libin 



???? Farshid Daryabor 
????? 2009-09-10  12:31:59 
???? GRADSUSR 
??? 
??? converting binary to netcdf 
Dear All User
I have binary data  ".dat"  I want convert it to netcdf  ".nc" by using grads, I create control file ".ctl" for it , is it ok. After that I use this command for convert to ".nc"
"set   gxout   fwrite"
"set   fwrite    my_data.nc"

but not working, could you help me for solving this problem.

Best Regards
F.Daryabor

Center for Tropical and Climate Change System
Faculty of Sciences and Technology 
National University of Malaysia (UKM)
Bangi 43600
Selangor
Malaysia
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From max.rythmos at YAHOO.COM  Thu Sep 10 07:08:02 2009
From: max.rythmos at YAHOO.COM (MARZIO VENEMAN)
Date: Thu, 10 Sep 2009 04:08:02 -0700
Subject: Research-affiliate Multi-user Screen-Saver (WIP:
 archeo-fysics-math-life)
Message-ID: <THU.10.SEP.2009.040802.0700.>


Dear subscribers GRADS,
Buongiorno cari amici,
.

Recently EvoGrid project has commenced. Advance details on my wiki page notes for any of these fields, oceanography, ozon, physics, math, life science or anybode else is welcome to participate professional, it's similar to SETI at Home and run by Mr. Bruce Damer..
?
<http://sourceforge.net/projects/evogrid/>
<http://sourceforge.net/projects/evogrid/>
The EvoGrid is an effort to develop a distributed simulation system to simulate potential pre-biotic chemical environments.
?
I trust this information is sufficient for your purposes, in case you require any additional details, please do not hesitate to contact the undersigned.
.
Yours sincerely,
Cordiali Saluti
.
.
.
Marzio Veneman
The Netherlands

?

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From jma at COLA.IGES.ORG  Thu Sep 10 07:55:52 2009
From: jma at COLA.IGES.ORG (Jennifer Adams)
Date: Thu, 10 Sep 2009 07:55:52 -0400
Subject: converting binary to netcdf
In-Reply-To: <9b8832d50909092121w502b11fbh89a29c4acdeed4b7@mail.gmail.com>
Message-ID: <THU.10.SEP.2009.075552.0400.>

If you are using GrADS version 2.0.3 or later, you can use the
'sdfwrite' command to write out a NetCDF file. The documentation is at http://www.iges.org/grads/gadoc/gradcomdsdfwrite.html
--Jennifer

On Sep 10, 2009, at 12:21 AM, Farshid Daryabor wrote:

> Dear All User
> I have binary data  ".dat"  I want convert it to netcdf  ".nc" by
> using grads, I create control file ".ctl" for it , is it ok. After
> that I use this command for convert to ".nc"
> "set   gxout   fwrite"
> "set   fwrite    my_data.nc"
>
> but not working, could you help me for solving this problem.
>
> Best Regards
> F.Daryabor
>
> Center for Tropical and Climate Change System
> Faculty of Sciences and Technology
> National University of Malaysia (UKM)
> Bangi 43600
> Selangor
> Malaysia

--
Jennifer M. Adams
IGES/COLA
4041 Powder Mill Road, Suite 302
Calverton, MD 20705
jma at cola.iges.org



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From zjuyanlibin at 163.COM  Thu Sep 10 07:58:16 2009
From: zjuyanlibin at 163.COM (Yan Libin)
Date: Thu, 10 Sep 2009 19:58:16 +0800
Subject: converting binary to netcdf
Message-ID: <THU.10.SEP.2009.195816.0800.>

strong


2009-09-10 



Yan Libin 



???? Jennifer Adams 
????? 2009-09-10  19:55:55 
???? GRADSUSR 
??? 
??? Re: converting binary to netcdf 
 
If you are using GrADS version 2.0.3 or later, you can use the 'sdfwrite' command to write out a NetCDF file. The documentation is at http://www.iges.org/grads/gadoc/gradcomdsdfwrite.html
--Jennifer



On Sep 10, 2009, at 12:21 AM, Farshid Daryabor wrote:


Dear All User
I have binary data  ".dat"  I want convert it to netcdf  ".nc" by using grads, I create control file ".ctl" for it , is it ok. After that I use this command for convert to ".nc"
"set   gxout   fwrite"
"set   fwrite    my_data.nc"

but not working, could you help me for solving this problem.

Best Regards
F.Daryabor

Center for Tropical and Climate Change System
Faculty of Sciences and Technology 
National University of Malaysia (UKM)
Bangi 43600
Selangor
Malaysia



--
Jennifer M. Adams
IGES/COLA
4041 Powder Mill Road, Suite 302
Calverton, MD 20705
jma at cola.iges.org
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From jma at COLA.IGES.ORG  Thu Sep 10 07:58:53 2009
From: jma at COLA.IGES.ORG (Jennifer Adams)
Date: Thu, 10 Sep 2009 07:58:53 -0400
Subject: Variable Grid possible?
In-Reply-To: <1252494212.4aa78b8485e5d@web-mail1.uibk.ac.at>
Message-ID: <THU.10.SEP.2009.075853.0400.>

You can use the PDEF GENERAL (aka PDEF FILE) option to tell GrADS how
to map each grid point in your 1-D vector into a 2-D lat/lon grid.
Please see http://www.iges.org/grads/gadoc/pdef.html
The example at the bottom of the page does something very similar to
what you'd like to do.
--Jennifer

On Sep 9, 2009, at 7:03 AM, Reto Stauffer wrote:

> Hy there
>
> I try to plot some Satellite-Data with Grads. It was "no problem" to
> produce a
> netCDF file wich i can import into GrADS and display the test-dataset.
>
> But now i have a question up to you. Normaly GrADS plots only onto a
> linear
> Grid. My netCDF-File only contains a one-line-vector with longitude
> and
> latitude boundries.
>
> Is there any possibility to import long/lat as a 2-D matrix wich
> discribes my
> own grid? I cannot found any good information about that.
>
> Test-Dataset, int [0;10] with own colormap:
> http://dudecom.ch/satpress/wp-content/uploads/2009/09/20090909_grads_colormapexample-543x400.png
>
> If anyone has an idea it wold be great to send me a request.
>
> Best regards
> Reto, Austria

--
Jennifer M. Adams
IGES/COLA
4041 Powder Mill Road, Suite 302
Calverton, MD 20705
jma at cola.iges.org



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From jma at COLA.IGES.ORG  Thu Sep 10 08:01:35 2009
From: jma at COLA.IGES.ORG (Jennifer Adams)
Date: Thu, 10 Sep 2009 08:01:35 -0400
Subject: Regarding .CDF file display in grads
In-Reply-To: <762772.98220.qm@web112405.mail.gq1.yahoo.com>
Message-ID: <THU.10.SEP.2009.080135.0400.>

Please post the complete error message you're getting from GrADS, plus
the output from 'q config'. It might also be helpful to know what
operating system you're using.
--Jennifer


On Sep 6, 2009, at 12:42 AM, mizanur rahman wrote:

> Dear Amjad
> I tried several times to display CRUPRE.CDF file in grads but I
> could nor success.
> I opened grads by gradsnc
> and wrote: ga> sdfopen CRUPRE.CDF then it shows faliure
>
> and also shows you try SDF-HDF.
>
> I am giving the path of CRU data please download and display
> CRUPRE.CDF in your computer.
>
> http://users.ictp.it/RegCNET/postproc.html#CRU
>
> (precipitation monthly mean mm/day, file name is CRUPRE.CDF)
>
> Please let me know what is happing.
>
> regards
>
> Rahman
>
>
> --- On Sat, 9/5/09, Muhammad Amjad <amjadozi at GMAIL.COM> wrote:
>
> From: Muhammad Amjad <amjadozi at GMAIL.COM>
> Subject: Re: Regarding .CDF file display in grads
> To: GRADSUSR at LIST.CINECA.IT
> Date: Saturday, September 5, 2009, 4:08 AM
>
> First open a linux shell and then
>
> gradsnc
> sdfopen file_name
> q file
> d var
>
> Cheers
> Amjad.
>
>
> On Mon, Aug 31, 2009 at 1:36 PM, mizanur rahman
> <mrahman426 at yahoo.com> wrote:
> Dear sir
> I would like to introduce myself to you. I am a researcher in the
> field of Meteorology. I downloaded CRU data from ICTP web site that
> is linked with the CRU web site. This CRU data is CRUPRE.CDF fomat.
> How do display .CRF file in Grads? I know how to display .nc file in
> grads but I tried several times to display in grads to .CDF file but
> I could not success.
> Please let me know how to display .CDF file in grads.
>
> Best  wishes
>
> Rahman
> Bangladesh
>
>
>

--
Jennifer M. Adams
IGES/COLA
4041 Powder Mill Road, Suite 302
Calverton, MD 20705
jma at cola.iges.org



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From jma at COLA.IGES.ORG  Thu Sep 10 08:03:01 2009
From: jma at COLA.IGES.ORG (Jennifer Adams)
Date: Thu, 10 Sep 2009 08:03:01 -0400
Subject: reverse FWRITE order
In-Reply-To: <BAY117-DS1067B822B821E2DF274F1FF9EC0@phx.gbl>
Message-ID: <THU.10.SEP.2009.080301.0400.>

There's no option to 'set fwrite' to do this. You have to write out
each row explicitly, starting at the northernmost latitude and working
your way southward.
--Jennifer

On Sep 5, 2009, at 11:21 PM, P.R. wrote:

> Hi,
> I need to fwrite in 'y-reverse' order (WE:NS instead of WE:SN).
> Is this possible?
>
> Thanks,
> P.R.

--
Jennifer M. Adams
IGES/COLA
4041 Powder Mill Road, Suite 302
Calverton, MD 20705
jma at cola.iges.org



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From Chris.Lynnes at NASA.GOV  Thu Sep 10 11:37:15 2009
From: Chris.Lynnes at NASA.GOV (Christopher Lynnes)
Date: Thu, 10 Sep 2009 11:37:15 -0400
Subject: Variable Grid possible?
In-Reply-To: <F495828B-0928-46C5-85CC-D1792DA6F71C@cola.iges.org>
Message-ID: <THU.10.SEP.2009.113715.0400.>

Jennifer,
    The PDEF GENERAL capability looks quite useful, but made me wonder
if GrADS does or will support variable grids in netCDF, where the data
are defined according to the CF-1 convention for two-dimensional
latitude and longitude coordinate variables (http://cf-pcmdi.llnl.gov/documents/cf-conventions/1.4/cf-conventions.html#id2984605
).
    We have a service to convert our AIRS swath data to netCDF files
with this convention, which allows tools such as IDV and McIDAS-V to
read and project them.  However, attempting an sdfopen in grads
2.0.a7.1 leads to the "no discernable X coordinate" error.
    An example file can be obtained via the URL:
http://aurapar2u.ecs.nasa.gov/airspar1/daac-bin/OTF/HTTP_services.cgi?FILENAME=%2Fdata%2Fs4pa%2FAqua_AIRS_Level2%2FAIRX2RET.005%2F2006%2F161%2FAIRS.2006.06.10.202.L2.RetStd.v5.0.14.0.G07345043455.hdf&LABEL=AIRS.2006.06.10.202.L2.RetStd.v5.0.14.0.G07345043455.nc&SHORTNAME=AIRX2RET&SERVICE=NetCDF&VERSION=1.02

On Sep 10, 2009, at 7:58 AM, Jennifer Adams wrote:

> You can use the PDEF GENERAL (aka PDEF FILE) option to tell GrADS
> how to map each grid point in your 1-D vector into a 2-D lat/lon
> grid. Please see http://www.iges.org/grads/gadoc/pdef.html
> The example at the bottom of the page does something very similar to
> what you'd like to do.
> --Jennifer
>
> On Sep 9, 2009, at 7:03 AM, Reto Stauffer wrote:
>
>> Hy there
>>
>> I try to plot some Satellite-Data with Grads. It was "no problem"
>> to produce a
>> netCDF file wich i can import into GrADS and display the test-
>> dataset.
>>
>> But now i have a question up to you. Normaly GrADS plots only onto
>> a linear
>> Grid. My netCDF-File only contains a one-line-vector with longitude
>> and
>> latitude boundries.
>>
>> Is there any possibility to import long/lat as a 2-D matrix wich
>> discribes my
>> own grid? I cannot found any good information about that.
>>
>> Test-Dataset, int [0;10] with own colormap:
>> http://dudecom.ch/satpress/wp-content/uploads/2009/09/20090909_grads_colormapexample-543x400.png
>>
>> If anyone has an idea it wold be great to send me a request.
>>
>> Best regards
>> Reto, Austria
>
> --
> Jennifer M. Adams
> IGES/COLA
> 4041 Powder Mill Road, Suite 302
> Calverton, MD 20705
> jma at cola.iges.org
>
>
>

--
Christopher Lynnes             NASA/GSFC, Code 610.2
301-614-5185


From jma at COLA.IGES.ORG  Thu Sep 10 14:00:34 2009
From: jma at COLA.IGES.ORG (Jennifer Adams)
Date: Thu, 10 Sep 2009 14:00:34 -0400
Subject: Variable Grid possible?
In-Reply-To: <9F04B9AE-CE20-45B2-B9DE-CDCFFE1AB59B@nasa.gov>
Message-ID: <THU.10.SEP.2009.140034.0400.>

That kind of data grid (with 2-dimensional coordinate variables)
doesn't fit the current gridded data model in GrADS. We have talked
about implementing a new data model, quasi-regular data, that would
fall somewhere in between regular grids and station data. But that is
not likely to be implemented any time soon. For now, interpolating to
a regular grid with PDEF is the only way to handle that kind of data
directly using GrADS.
--Jennifer

On Sep 10, 2009, at 11:37 AM, Christopher Lynnes wrote:

> Jennifer,
>   The PDEF GENERAL capability looks quite useful, but made me wonder
> if GrADS does or will support variable grids in netCDF, where the data
> are defined according to the CF-1 convention for two-dimensional
> latitude and longitude coordinate variables (http://cf-pcmdi.llnl.gov/documents/cf-conventions/1.4/cf-conventions.html#id2984605
> ).
>   We have a service to convert our AIRS swath data to netCDF files
> with this convention, which allows tools such as IDV and McIDAS-V to
> read and project them.  However, attempting an sdfopen in grads
> 2.0.a7.1 leads to the "no discernable X coordinate" error.
>   An example file can be obtained via the URL:
> http://aurapar2u.ecs.nasa.gov/airspar1/daac-bin/OTF/HTTP_services.cgi?FILENAME=%2Fdata%2Fs4pa%2FAqua_AIRS_Level2%2FAIRX2RET.005%2F2006%2F161%2FAIRS.2006.06.10.202.L2.RetStd.v5.0.14.0.G07345043455.hdf&LABEL=AIRS.2006.06.10.202.L2.RetStd.v5.0.14.0.G07345043455.nc&SHORTNAME=AIRX2RET&SERVICE=NetCDF&VERSION=1.02
>
> On Sep 10, 2009, at 7:58 AM, Jennifer Adams wrote:
>
>> You can use the PDEF GENERAL (aka PDEF FILE) option to tell GrADS
>> how to map each grid point in your 1-D vector into a 2-D lat/lon
>> grid. Please see http://www.iges.org/grads/gadoc/pdef.html
>> The example at the bottom of the page does something very similar to
>> what you'd like to do.
>> --Jennifer
>>
>> On Sep 9, 2009, at 7:03 AM, Reto Stauffer wrote:
>>
>>> Hy there
>>>
>>> I try to plot some Satellite-Data with Grads. It was "no problem"
>>> to produce a
>>> netCDF file wich i can import into GrADS and display the test-
>>> dataset.
>>>
>>> But now i have a question up to you. Normaly GrADS plots only onto
>>> a linear
>>> Grid. My netCDF-File only contains a one-line-vector with longitude
>>> and
>>> latitude boundries.
>>>
>>> Is there any possibility to import long/lat as a 2-D matrix wich
>>> discribes my
>>> own grid? I cannot found any good information about that.
>>>
>>> Test-Dataset, int [0;10] with own colormap:
>>> http://dudecom.ch/satpress/wp-content/uploads/2009/09/20090909_grads_colormapexample-543x400.png
>>>
>>> If anyone has an idea it wold be great to send me a request.
>>>
>>> Best regards
>>> Reto, Austria
>>
>> --
>> Jennifer M. Adams
>> IGES/COLA
>> 4041 Powder Mill Road, Suite 302
>> Calverton, MD 20705
>> jma at cola.iges.org
>>
>>
>>
>
> --
> Christopher Lynnes             NASA/GSFC, Code 610.2
> 301-614-5185

--
Jennifer M. Adams
IGES/COLA
4041 Powder Mill Road, Suite 302
Calverton, MD 20705
jma at cola.iges.org



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From cujyaz at GOOGLEMAIL.COM  Thu Sep 10 20:38:17 2009
From: cujyaz at GOOGLEMAIL.COM (Andreas Schneider)
Date: Fri, 11 Sep 2009 02:38:17 +0200
Subject: How to control the streamline?
In-Reply-To: <4AA98A40.4020905@hawaii.edu>
Message-ID: <FRI.11.SEP.2009.023817.0200.>

On Fri, Sep 11, 2009 at 1:22 AM, James T. Potemra <jimp at hawaii.edu> wrote:
> Hi Andreas:
>
> Thanks for investing the time to update this GrADS function.  I've been able
> to apply the patch and compile on my linux system (Redhat).  I was wondering
> if your new code allows one to change the thickness of the streamlines?
>  GrADS allows this in lines and contours but not streamlines.  Would this be
> easier to add (I could do it myself if you could point me to the right
> routine)?  Thanks again,
>
> Jim

Maybe it's as easy as adding

  gxwide(gxqwid());

somewhere near the top of gxstrm() (just a guess from looking at gxcntr.c).

Andreas


From karakavalasa at YAHOO.COM  Fri Sep 11 03:42:50 2009
From: karakavalasa at YAHOO.COM (Rama Krishna Patnaik)
Date: Fri, 11 Sep 2009 09:42:50 +0200
Subject: data management in grads
Message-ID: <FRI.11.SEP.2009.094250.0200.>

Dear colleagues,

Please suggest me a script file to get a monthly averaged netcdf file from
day wise 30 netcdf files.

regards,
patnaik


From max.rythmos at YAHOO.COM  Fri Sep 11 04:37:18 2009
From: max.rythmos at YAHOO.COM (MARZIO VENEMAN)
Date: Fri, 11 Sep 2009 01:37:18 -0700
Subject: Fw: EUR EC VESTA-GIS Newsletter 5
Message-ID: <FRI.11.SEP.2009.013718.0700.>

----- Forwarded Message ----
From: VESTA-GIS office <office at vesta-gis.eu>
Sent: Thursday, September 10, 2009 3:46:09 PM
Subject: VESTA-GIS Newsletter 5

Sorry for Cross Posting!

Dear friend,

you find attached the 5th issue of the VESTA-GIS newsletter.

There you will find a detailed guide to the on line mobility database
with the hope to invite all of you to actively participate to the
Network and to enjoy the opportunities that it can offer.
Two new Associated Partners are presented to the VESTA-GIS community, as
well as some important events that have seen and will see the
participation of? VESTA-GIS
Finally, it is given an overview of the next events in the field of GIS
and related applications.

Of course, feel free to send this message to all people you think might
be interested in VESTA-GIS!

Hoping you find it useful

Best regards


--
VESTA-GIS Project Office

Tel. +39 010 8355588
Fax? +39 010 8357190
e-mail: office at vesta-gis.eu

? 
________________________________

.
Click here to visit my?professional profile and connect!
<http://www.linkedin-ech3.com/in/rythmomachy>.
<http://en.wikipedia.org/wiki/User:Rythmomachy>
.

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________________________________

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________________________________



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From gabriel.ud at GMAIL.COM  Fri Sep 11 13:58:07 2009
From: gabriel.ud at GMAIL.COM (Gabriel - ud Carvalho)
Date: Fri, 11 Sep 2009 14:58:07 -0300
Subject: color-filled continents
Message-ID: <FRI.11.SEP.2009.145807.0300.>

Hi everybody!Does somebody knows how to color the land?
the ?set map?or ?set mpt? only controls the color of the line of the land
(continent)!

thanks a lot,

Gabriel Carvalho
Oceanography Student
Rio de Janeiro
Brazil
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From matias at TROPOSFERA.ATMOSFCU.UNAM.MX  Fri Sep 11 14:13:04 2009
From: matias at TROPOSFERA.ATMOSFCU.UNAM.MX (Matias Mendez)
Date: Fri, 11 Sep 2009 13:13:04 -0500
Subject: color-filled continents
In-Reply-To: <cf67f2c80909111058g7cd8846bm9fb6e8fd6c13204d@mail.gmail.com>
Message-ID: <FRI.11.SEP.2009.131304.0500.>

Hello Gabriel,

You can try basemap.gs. This script overlays a land or ocean mask. You
can get it, here:

http://www.iges.org/grads/gadoc/library.html

Good luck.

Best regards,
Matias


Gabriel - ud Carvalho escribi?:
> Hi everybody!
> Does somebody knows how to color the land?
> the ?set map?or ?set mpt? only controls the color of the line of the
> land (continent)!
>
> thanks a lot,
>
> Gabriel Carvalho
> Oceanography Student
> Rio de Janeiro
> Brazil
>


From hc.nnamchi at LASG.IAP.AC.CN  Sat Sep 12 11:22:29 2009
From: hc.nnamchi at LASG.IAP.AC.CN (Hyacinth Cyprain Nnamchi)
Date: Sat, 12 Sep 2009 23:22:29 +0800
Subject: Problem with fwrite
Message-ID: <SAT.12.SEP.2009.232229.0800.>

Dear GrADS Users,

I am trying to write out SST data from the Hadley Centre dataset at 1*1-degree lon/lat grids for the oceans using the code in  .gs file:

tt=1
while(tt<=684)
'set  z  1'
'set  lon -60 20'
'set  lat  -45 5'
'set t ' tt
'd   sst'
tt=tt+1
endwhile
'reinit'

This works when I print the data on the screen as in the "Correct_Fig.JPG" (attached herewith) for the 684 timesteps.The problem is: When I use fwrite to write out the data and then read with ctl file, it produces the "Wrong_Fig.JPG" (Fig attached is for the first timestep.This error occurs in all the timesteps).

The CTL info below is the same with that of the parent data except in respect to the start lon/lat and the numbers of lon/lat:
UNDEF      -1e+30
XDEF       81    LINEAR    -60    1
YDEF        51    LINEAR   -45     1
ZDEF        1     LINEAR     0          1
TDEF       684   LINEAR  JAN1950        1mo
VARS        1
sst    0    99    global monthly SSTs at 1 by 1 resolution from the Hadley Centre
ENDVARS


Can anyone help with some ideas on how to get around this?
Thanks in advance.

hyacinth
MS Windows GrADS 2.0.a5.oga.5







--
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From olivia851224 at GMAIL.COM  Sat Sep 12 20:06:35 2009
From: olivia851224 at GMAIL.COM (loli lindalva)
Date: Sat, 12 Sep 2009 20:06:35 -0400
Subject: converting binary to netcdf
In-Reply-To: <200909101958156406944@163.com>
Message-ID: <SAT.12.SEP.2009.200635.0400.>

hello
i need draw trayectory used grad, how are make

2009/9/10 Yan Libin <zjuyanlibin at 163.com>

>  strong
>
>
> 2009-09-10
> ------------------------------
>  Yan Libin
> ------------------------------
>  *????* Jennifer Adams
> *?????* 2009-09-10  19:55:55
>  *????* GRADSUSR
> *???*
> *???* Re: converting binary to netcdf
>   If you are using GrADS version 2.0.3 or later, you can use the
> 'sdfwrite' command to write out a NetCDF file. The documentation is at
> http://www.iges.org/grads/gadoc/gradcomdsdfwrite.html --Jennifer
>
>  On Sep 10, 2009, at 12:21 AM, Farshid Daryabor wrote:
>
> Dear All User
> I have binary data  ".dat"  I want convert it to netcdf  ".nc" by using
> grads, I create control file ".ctl" for it , is it ok. After that I use this
> command for convert to ".nc"
> "set   gxout   fwrite"
> "set   fwrite    my_data.nc"
>
> but not working, could you help me for solving this problem.
>
> Best Regards
> F.Daryabor
>
> Center for Tropical and Climate Change System
> Faculty of Sciences and Technology
> National University of Malaysia (UKM)
> Bangi 43600
> Selangor
> Malaysia
>
>
>  --
> Jennifer M. Adams
> IGES/COLA
> 4041 Powder Mill Road, Suite 302
> Calverton, MD 20705
> jma at cola.iges.org
>
>
>
>
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From davide.sacchetti at ARPAL.ORG  Mon Sep 14 03:27:03 2009
From: davide.sacchetti at ARPAL.ORG (Davide Sacchetti)
Date: Mon, 14 Sep 2009 09:27:03 +0200
Subject: Problem with fwrite
In-Reply-To: <7946656.254741252768949005.JavaMail.coremail@mail3.iap.ac.cn>
Message-ID: <MON.14.SEP.2009.092703.0200.>

I don't know ...
my suggestions are:
      * use gxout shaded (it helps understanding location of missing
        data - that's the wrong land sea mask)
      * when grads writes down (display with gxout fwrite) check number
        of elements with Nx * Ny
      * put 'set lon ... lat ... z' out of the loop, tying inside the
        loop does not help
      * when you obtain the output file check the file size by
        Nx*Ny*Nt*4
      * if any of these check fails try to understand where it fails. In
        my experience, using high resolutions, fwrite may fail the
        correct number of X, or Y, or may fail the X,Y start point; it's
        really unusual the failure with 1 deg resolution.

p.s.: the correct_fig was missing ...
bye bye

davide

On Sat, 2009-09-12 at 23:22 +0800, Hyacinth Cyprain Nnamchi wrote:
> Dear GrADS Users,
>
> I am trying to write out SST data from the Hadley Centre dataset at 1*1-degree lon/lat grids for the oceans using the code in  .gs file:
>
> tt=1
> while(tt<=684)
> 'set  z  1'
> 'set  lon -60 20'
> 'set  lat  -45 5'
> 'set t ' tt
> 'd   sst'
> tt=tt+1
> endwhile
> 'reinit'
>
> This works when I print the data on the screen as in the "Correct_Fig.JPG" (attached herewith) for the 684 timesteps.The problem is: When I use fwrite to write out the data and then read with ctl file, it produces the "Wrong_Fig.JPG" (Fig attached is for the first timestep.This error occurs in all the timesteps).
>
> The CTL info below is the same with that of the parent data except in respect to the start lon/lat and the numbers of lon/lat:
> UNDEF      -1e+30
> XDEF       81    LINEAR    -60    1
> YDEF        51    LINEAR   -45     1
> ZDEF        1     LINEAR     0          1
> TDEF       684   LINEAR  JAN1950        1mo
> VARS        1
> sst    0    99    global monthly SSTs at 1 by 1 resolution from the Hadley Centre
> ENDVARS
>
>
> Can anyone help with some ideas on how to get around this?
> Thanks in advance.
>
> hyacinth
> MS Windows GrADS 2.0.a5.oga.5
>
>
>
>
>
>
>
> --
--
Sacchetti Davide
Centro Funzionale Meteo Idrologico di Protezione Civile della Regione Liguria
ARPAL Unit?  Tecnica Complessa di livello Regionale
V.le Brigare Partigiane 2 16121 Genova (I)
tel: +39 010 6437535                    fax: +39 010 6437520
mail: davide.sacchetti at arpal.org     web: www.meteoliguria.it


From kwmski7 at SNU.AC.KR  Mon Sep 14 03:30:05 2009
From: kwmski7 at SNU.AC.KR (Kim WonMoo)
Date: Mon, 14 Sep 2009 16:30:05 +0900
Subject: Problem with fwrite
In-Reply-To: <1252913223.1308.20.camel@davide>
Message-ID: <MON.14.SEP.2009.163005.0900.>

I think it's problem with the number of grid points:
>      * when grads writes down (display with gxout fwrite) check number
>        of elements with Nx * Ny

Rather than using 'lon' & 'lat' setting, try 'set x' & 'y'.
i.e., if you use 'set lon -60 60' than the output may not be 81 in
x-dimension, but 82 or 80 sometimes.

Good luck,
Kim, WonMoo


--------------------------------------------------
From: "Davide Sacchetti" <davide.sacchetti at ARPAL.ORG>
Sent: Monday, September 14, 2009 4:27 PM
To: <GRADSUSR at LIST.CINECA.IT>
Subject:      Re: Problem with fwrite

> I don't know ...
> my suggestions are:
>      * use gxout shaded (it helps understanding location of missing
>        data - that's the wrong land sea mask)
>      * when grads writes down (display with gxout fwrite) check number
>        of elements with Nx * Ny
>      * put 'set lon ... lat ... z' out of the loop, tying inside the
>        loop does not help
>      * when you obtain the output file check the file size by
>        Nx*Ny*Nt*4
>      * if any of these check fails try to understand where it fails. In
>        my experience, using high resolutions, fwrite may fail the
>        correct number of X, or Y, or may fail the X,Y start point; it's
>        really unusual the failure with 1 deg resolution.
>
> p.s.: the correct_fig was missing ...
> bye bye
>
> davide
>
> On Sat, 2009-09-12 at 23:22 +0800, Hyacinth Cyprain Nnamchi wrote:
>> Dear GrADS Users,
>>
>> I am trying to write out SST data from the Hadley Centre dataset at
>> 1*1-degree lon/lat grids for the oceans using the code in  .gs file:
>>
>> tt=1
>> while(tt<=684)
>> 'set  z  1'
>> 'set  lon -60 20'
>> 'set  lat  -45 5'
>> 'set t ' tt
>> 'd   sst'
>> tt=tt+1
>> endwhile
>> 'reinit'
>>
>> This works when I print the data on the screen as in the
>> "Correct_Fig.JPG" (attached herewith) for the 684 timesteps.The problem
>> is: When I use fwrite to write out the data and then read with ctl file,
>> it produces the "Wrong_Fig.JPG" (Fig attached is for the first
>> timestep.This error occurs in all the timesteps).
>>
>> The CTL info below is the same with that of the parent data except in
>> respect to the start lon/lat and the numbers of lon/lat:
>> UNDEF      -1e+30
>> XDEF       81    LINEAR    -60    1
>> YDEF        51    LINEAR   -45     1
>> ZDEF        1     LINEAR     0          1
>> TDEF       684   LINEAR  JAN1950        1mo
>> VARS        1
>> sst    0    99    global monthly SSTs at 1 by 1 resolution from the
>> Hadley Centre
>> ENDVARS
>>
>>
>> Can anyone help with some ideas on how to get around this?
>> Thanks in advance.
>>
>> hyacinth
>> MS Windows GrADS 2.0.a5.oga.5
>>
>>
>>
>>
>>
>>
>>
>> --
> --
> Sacchetti Davide
> Centro Funzionale Meteo Idrologico di Protezione Civile della Regione
> Liguria
> ARPAL Unit?  Tecnica Complessa di livello Regionale
> V.le Brigare Partigiane 2 16121 Genova (I)
> tel: +39 010 6437535                    fax: +39 010 6437520
> mail: davide.sacchetti at arpal.org     web: www.meteoliguria.it
>
>
>


From hc.nnamchi at LASG.IAP.AC.CN  Sun Sep 13 11:43:08 2009
From: hc.nnamchi at LASG.IAP.AC.CN (Hyacinth Cyprain Nnamchi)
Date: Sun, 13 Sep 2009 23:43:08 +0800
Subject: GS files in GrADS 2.0.a5.oga.5
Message-ID: <SUN.13.SEP.2009.234308.0800.>

Dear Colleagues,

I am using GrADS 2.0.a5.oga.5 from the Opengrads download page (http://sourceforge.net/projects/opengrads/files/) on MS Windows.I notice that it does not recognise the in-built .gs files like cbar.gs, cbarn.gs etc, although I have confirmed that they are in the "scripts" file.

Does anyone know what could be wrong, where should I place the .gs files?


Thanks,
hyacinth




--

Hyacinth C. Nnamchi
TWAS-CAS Fellow
State Key Laboratory of Numerical Modeling for
Atmospheric Sciences and Geophysical Fluid Dynamics (LASG)
Institute of Atmospheric Physics (IAP)
Chinese Academy of Sciences (CAS)
P.O.Box 9804, Beijing 100029, China
Tel: +86-13488719702
Fax: +86-10-82995172
E-mail:hc.nnamchi at lasg.iap.ac.cn


From ccortes at CENMA.CL  Mon Sep 14 10:40:07 2009
From: ccortes at CENMA.CL (claudio cortes)
Date: Mon, 14 Sep 2009 10:40:07 -0400
Subject: need information, please
Message-ID: <MON.14.SEP.2009.104007.0400.>

Hi GraDS Users (and sorry for the semi-off topic)

I'm meteorologist of the National Environment Center, Chile. In the
principal city of Chile (Santiago) and in another cities of the
country, the PM10 problem in winter and Tropospheric Ozone in Summer
is critical. Therefore, in winter, the goverment takes actions to
control the emissions and protect the people against the PM10,
depending of the meteorological and PM10 forecast made by us.
Now, we are in campaign of update our forecast system, and my work is
find another institutions who works with PM10 and Ozone forecast
systems and know how works, tools used, work way, monitoring systems,
models used and his accuracy. So, I need your help, if any of you
works in some institution dedicated to the forecast of particulate
matter and ozone, please answer me the next questions (and send me
additional info if you want)

1.- Institution name (organization, who depends, financing, etc.)
2.- Country
3.- Forecast zone (extension and number of monitoring stations)
4.- Number of people working in the forecast
5.- Official way to measure the air quality in your zone (pm10:
average of next 0 to 23 hours of tomorrow, pm10: max movable average
of 24 hours for tomorrow, pm10: average of 6AM of tomorrow to 6AM of
past tomorow, etc... and ozone)
6.- Models used (linear regression, mos, neural networks,
physics-chemical models, etc.) and his accuracy (what model is
recommended by you?)
7.- Other institutions involved in the forecast and his role in this work
8.- The local goverment takes actions before critical events of
pollution ? (what kind of actions?)
9.- Long-term actions in your zone to reduce the pollution.
10.- Cost of implement your forecast system in another place (eg,
another country), including monitoring stations, equiments, etc.

The end of this study is recommend to the goverment improvements to
our forecast system (governed by law), improvements who involving
better accuracy and, therefore, more efficient protection to the
people.

This info will be helpful for my study, and if you have any
complementary information just send me. I will share the results of
this study with the list.
Thank you very much GrADS Users !.

--
Claudio Cortes
+56 (2) 2994121

Meteorologo
Laboratorio de Meteorologia y Calidad de Aire
Centro Nacional del Medio Ambiente (CENMA)
--------------------------------------------------------------------------------------

Claudio Cortes
+56 (2) 2994121

Meteorologist
Meteorology and Air Quality Labs
National Enviroment Center, Chile (CENMA)


From j.c.mikovitz at NASA.GOV  Mon Sep 14 10:57:42 2009
From: j.c.mikovitz at NASA.GOV (Colleen Mikovitz)
Date: Mon, 14 Sep 2009 10:57:42 -0400
Subject: Variable define and/or aave oddity
Message-ID: <MON.14.SEP.2009.105742.0400.>

I am working though a script to do simple global maps of variables
with annotations of the global average.  But I noticed that when I use
the define command,  aave returns a different value on that newly
defined variable than on the original variable.  I just installed the
newest release to see if that would correct it, but I get the same
thing.

Could someone look at the following to see if I am doing anything odd
or if this is a known/unknown problem?

Thanks,
Colleen

*********************
ga-> q config
Config: v2.0.a7.1 little-endian readline printim grib2 netcdf hdf4-sds
hdf5 geotiff
Grid Analysis and Display System (GrADS) Version 2.0.a7.1
Copyright (c) 1988-2009 by Brian Doty and the
Institute for Global Environment and Society (IGES)
This program is distributed WITHOUT ANY WARRANTY
See file COPYRIGHT for more information.

Built Fri Aug  7 18:15:20 EDT 2009 for i386-apple-darwin9.7.0

ga-> q ctlinfo
dset /Users/colleen/lib/sfcdn_new.binary
title GLW
undef -999
xdef 360 linear 0.5 1
ydef 180 linear -89.5 1
zdef 1 linear 1000 1
tdef 1 linear 00Z01JAN2002 180mn
vars 1
prop  1  0  check var
endvars


ga-> d prop
Contouring: 100 to 450 interval 50
ga-> define newvar=prop
Define memory allocation size = 527072 bytes
ga-> d aave(prop,g)
Result value = 335.076
ga-> d aave(newvar,g)
Result value = 324.465
ga-> d prop-newvar
Constant field.  Value = 0


From hersala at GMAIL.COM  Mon Sep 14 12:32:44 2009
From: hersala at GMAIL.COM (hersala)
Date: Mon, 14 Sep 2009 13:32:44 -0300
Subject: GS files in GrADS 2.0.a5.oga.5
In-Reply-To: <17945030.256101252856588130.JavaMail.coremail@mail3.iap.ac.cn>
Message-ID: <MON.14.SEP.2009.133244.0300.>

Hi Hyacinth:
When I use my own scripts or from another person, I save them in the same
folder from where the data is read by GrADS, that is *win32* folder.
I hope this help you.
Bye,
Hern?n

2009/9/13 Hyacinth Cyprain Nnamchi <hc.nnamchi at lasg.iap.ac.cn>

> Dear Colleagues,
>
> I am using GrADS 2.0.a5.oga.5 from the Opengrads download page (
> http://sourceforge.net/projects/opengrads/files/) on MS Windows.I notice
> that it does not recognise the in-built .gs files like cbar.gs, cbarn.gsetc, although I have confirmed that they are in the "scripts" file.
>
> Does anyone know what could be wrong, where should I place the .gs files?
>
>
> Thanks,
> hyacinth
>
>
>
>
> --
>
> Hyacinth C. Nnamchi
> TWAS-CAS Fellow
> State Key Laboratory of Numerical Modeling for
> Atmospheric Sciences and Geophysical Fluid Dynamics (LASG)
> Institute of Atmospheric Physics (IAP)
> Chinese Academy of Sciences (CAS)
> P.O.Box 9804, Beijing 100029, China
> Tel: +86-13488719702
> Fax: +86-10-82995172
> E-mail:hc.nnamchi at lasg.iap.ac.cn <E-mail%3Ahc.nnamchi at lasg.iap.ac.cn>
>
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From fowler at CIRA.COLOSTATE.EDU  Mon Sep 14 16:17:04 2009
From: fowler at CIRA.COLOSTATE.EDU (Laura Fowler)
Date: Mon, 14 Sep 2009 22:17:04 +0200
Subject: netcdf 64 bit
Message-ID: <MON.14.SEP.2009.221704.0200.>

Hello:

I am trying to display data from a 64 bit netcdf file using open. Using
ncdump -h, the top of the netcdf file is:

netcdf cam3_5_1 { // format variant: 64bit

I wrote a ctl file to open the file. I am able to open the file, and display
data that are defined as double, but not data that are defined as float.

What do I need to do to read and display data defined as float?

Thanks.
Laura


From rebrosa at GMAIL.COM  Mon Sep 14 16:20:03 2009
From: rebrosa at GMAIL.COM (Rebeca Meyer Rosa)
Date: Mon, 14 Sep 2009 17:20:03 -0300
Subject: unsubscribe
Message-ID: <MON.14.SEP.2009.172003.0300.>

       *rebs*

| o tempo muda |
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From berkelha at USC.EDU  Mon Sep 14 21:02:04 2009
From: berkelha at USC.EDU (Max)
Date: Tue, 15 Sep 2009 03:02:04 +0200
Subject: point by point correlation
Message-ID: <TUE.15.SEP.2009.030204.0200.>

Dear Gradsusr,
I was curious if there was a function or script to plot the correlation
coefficient between two variables at each grid point in a defined region?

For example, I would like to make a plot showing the correlation between the
concentration of a tracer and vertical velocity over a wide region.


Thanks.

-Max


From mubashardogar at GMAIL.COM  Mon Sep 14 23:45:50 2009
From: mubashardogar at GMAIL.COM (Mubashar Dogar)
Date: Tue, 15 Sep 2009 08:45:50 +0500
Subject: point by point correlation
In-Reply-To: <20090915010321.28A061FFDF@mx2.cineca.it>
Message-ID: <TUE.15.SEP.2009.084550.0500.>

Dear GrADS users,


I want to extract daily averages from a monthly file having 3 hourly out put
data. I am using the following script (in blue color). Script is working
fine but the result of daily averages obtained by this script are different
when I compare it by directly opening the 3 hourly output file in GrADS and
do manual daily average at particular lat and lon information. The manual
command is as follows.

Any idea in this regard?


'set gxout fwrite'
'disable fwrite'
'set fwrite SRF_avg_daily.grd'
 'open /RAID/RegCM_A2/ERA40_09/SRF.1961010100.ctl'
'set x 1 303'
'set y 1 226'
t=1
tmax=248
while(t<=tmax)
'set t 't
'define a=avg(t2min,t+0,t+7)'
'd const(a,-9999.0,-u)'
t=t+8
endwhile
'close 1'


Regards,


Mubashar


--
Muhammad Mubashar Ahmad Dogar
Scientific Officer (Climatology Section),
Global Change Impact Studies Centre (GCISC),
NCP complex, Quaid-e-Azam University Campus,
Shahdra road, Islamabad, Pakistan.
Tel:  +92519230226
Mob:+923315144169
email: mubashardogar at yahoo.com
         mubashar.ahmad at gcisc.org.pk
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From rust123 at YAHOO.CN  Tue Sep 15 03:48:00 2009
From: rust123 at YAHOO.CN (=?gb2312?B?zfXTwMGi?=)
Date: Tue, 15 Sep 2009 15:48:00 +0800
Subject: =?gb2312?B?u9i4tKO6IHBvaW50IGJ5IHBvaW50IGNvcnJlbGF0aW9u?=
In-Reply-To: <20090915010321.28A061FFDF@mx2.cineca.it>
Message-ID: <TUE.15.SEP.2009.154800.0800.>

the scorr in the grads function may be suitable




________________________________
???? Max <berkelha at USC.EDU>
???? GRADSUSR at LIST.CINECA.IT
???? 2009/9/15(??), ??9:02:04
??? point by point correlation

Dear Gradsusr,
I was curious if there was a function or script to plot the correlation
coefficient between two variables at each grid point in a defined region?

For example, I would like to make a plot showing the correlation between the
concentration of a tracer and vertical velocity over a wide region.


Thanks.

-Max



      ___________________________________________________________ 
  ????????????????? 
http://card.mail.cn.yahoo.com/
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From rust123 at YAHOO.CN  Tue Sep 15 04:03:35 2009
From: rust123 at YAHOO.CN (=?utf-8?B?546L5rC456uL?=)
Date: Tue, 15 Sep 2009 16:03:35 +0800
Subject: command in GrADS 2.0.a5.oga.5
In-Reply-To: <5b40c90909140932g17035b40q722226b8a0b0d0ff@mail.gmail.com>
Message-ID: <TUE.15.SEP.2009.160335.0800.>

hello,everyone
????? what?are the shortcut keys of the copy and paste?command in GrADS 2.0.a5.oga.5,thank you in advance.the shfit+insert could not be used in the windows xp.




________________________________
???? hersala <hersala at GMAIL.COM>
???? GRADSUSR at LIST.CINECA.IT
???? 2009/9/15(??), ??12:32:44
??? Re: GS files in GrADS 2.0.a5.oga.5

Hi Hyacinth:
When I use my own scripts or from another person, I save them in the same folder from where the data is read by GrADS, that is win32 folder.
I hope this help you.
Bye,
Hern? 


2009/9/13 Hyacinth Cyprain Nnamchi <hc.nnamchi at lasg.iap.ac.cn>

Dear Colleagues,
>
>I am using GrADS 2.0.a5.oga.5 from the Opengrads download page (http://sourceforge.net/projects/opengrads/files/) on MS Windows.I notice that it does not recognise the in-built .gs files like cbar.gs, cbarn.gs etc, although I have confirmed that they are in the "scripts" file.
>
>Does anyone know what could be wrong, where should I place the .gs files?
>
>
>Thanks,
>hyacinth
>
>
>
>
>--
>
>Hyacinth C. Nnamchi
>TWAS-CAS Fellow
>State Key Laboratory of Numerical Modeling for
>Atmospheric Sciences and Geophysical Fluid Dynamics (LASG)
>Institute of Atmospheric Physics (IAP)
>Chinese Academy of Sciences (CAS)
>P.O.Box 9804, Beijing 100029, China
>Tel: +86-13488719702
>Fax: +86-10-82995172
>E-mail:hc.nnamchi at lasg.iap.ac.cn
>



      ___________________________________________________________ 
  ????????????????? 
http://card.mail.cn.yahoo.com/
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From fdaryabor at GOOGLEMAIL.COM  Tue Sep 15 05:19:37 2009
From: fdaryabor at GOOGLEMAIL.COM (Farshid Daryabor)
Date: Tue, 15 Sep 2009 17:19:37 +0800
Subject: command in GrADS 2.0.a5.oga.5
In-Reply-To: <738774.2495.qm@web92416.mail.cnh.yahoo.com>
Message-ID: <TUE.15.SEP.2009.171937.0800.>

Hi
I try for downloading 'sdfwrite'  script from "
http://www.iges.org/grads/gadoc/library.html" but can't find it, because
when I open 'my_data.ctl' in './gradsc' I face to following massage:

ga-> open /home/Arya/fDaryabor/Roms_tools/Run/binary2netcdf.ctl
Scanning description file:
/home/Arya/fDaryabor/Roms_tools/Run/binary2netcdf.ctl
Data file /home/Arya/fDaryabor/Roms_tools/Run/emp.dat is open as file 1
LON set to 0 360
LAT set to 180 359
LEV set to 0 0
Time values set: 1960:1:16:5 1960:1:16:5
ga-> set lon 98 120
LON set to 98 120
ga-> set lat -10 20
LAT set to -10 20
ga-> set t 05z16jan1960 1mo
Time values set: 1960:5:16:5 1960:1:16:5
ga->  set sdfwrite /home/Arya/Desktop/EMP.nc
SET error: Invalid operand
  Operand = sdfwrite /home/arya/desktop/emp.nc
I think must download "sdfwrite" script, please you help me, and give me
straight address for find it.
Best Regards
F.Daryabor


On Tue, Sep 15, 2009 at 4:03 PM, ?????? <rust123 at yahoo.cn> wrote:

> hello,everyone
>       what are the shortcut keys of the copy and paste command in GrADS
> 2.0.a5.oga.5,thank you in advance.the shfit+insert could not be used in the
> windows xp.
>
>  ------------------------------
> *????????* hersala <hersala at GMAIL.COM>
> *????????* GRADSUSR at LIST.CINECA.IT
> *????????* 2009/9/15(????), ????12:32:44
> *??????* Re: GS files in GrADS 2.0.a5.oga.5
>
> Hi Hyacinth:
> When I use my own scripts or from another person, I save them in the same
> folder from where the data is read by GrADS, that is *win32* folder.
> I hope this help you.
> Bye,
> Hern?n
>
> 2009/9/13 Hyacinth Cyprain Nnamchi <hc.nnamchi at lasg.iap.ac.cn>
>
>> Dear Colleagues,
>>
>> I am using GrADS 2.0.a5.oga.5 from the Opengrads download page (
>> http://sourceforge.net/projects/opengrads/files/) on MS Windows.I notice
>> that it does not recognise the in-built .gs files like cbar.gs, cbarn.gsetc, although I have confirmed that they are in the "scripts" file.
>>
>> Does anyone know what could be wrong, where should I place the .gs files?
>>
>>
>> Thanks,
>> hyacinth
>>
>>
>>
>>
>> --
>>
>> Hyacinth C. Nnamchi
>> TWAS-CAS Fellow
>> State Key Laboratory of Numerical Modeling for
>> Atmospheric Sciences and Geophysical Fluid Dynamics (LASG)
>> Institute of Atmospheric Physics (IAP)
>> Chinese Academy of Sciences (CAS)
>> P.O.Box 9804, Beijing 100029, China
>> Tel: +86-13488719702
>> Fax: +86-10-82995172
>> E-mail:hc.nnamchi at lasg.iap.ac.cn <E-mail%3Ahc.nnamchi at lasg.iap.ac.cn>
>>
>
>
> ------------------------------
> ??????????????????????????????????<http://cn.rd.yahoo.com/mail_cn/tagline/card/*http://card.mail.cn.yahoo.com/>
>
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From cferrao at GMAIL.COM  Tue Sep 15 09:26:15 2009
From: cferrao at GMAIL.COM (=?ISO-8859-1?Q?Carlos_Ferr=E3o?=)
Date: Tue, 15 Sep 2009 15:26:15 +0200
Subject: WMO BUFR 13.0 tables for GRADS
Message-ID: <TUE.15.SEP.2009.152615.0200.>

Dear all,

I need to read WMO BUFR 13.0 data from METOP satellite. The idea is to read
BUFR and write to a more friendly format like HDF or NETCDF. I was thinking
of using GRADS for this.

However, I cannot find the WMO 13.0 tables for GRADS. In the WMO website the
tables are in doc, pdf and in ASCII but on a different layout.

Am I supposed to do some perl script to convert from WMO provided ascii
tables to GRADS ascii tables??


From cferrao at GMAIL.COM  Tue Sep 15 09:26:21 2009
From: cferrao at GMAIL.COM (=?ISO-8859-1?Q?Carlos_Ferr=E3o?=)
Date: Tue, 15 Sep 2009 15:26:21 +0200
Subject: WMO BUFR 13.0 tables for GRADS
Message-ID: <TUE.15.SEP.2009.152621.0200.>

Dear all,

I need to read WMO BUFR 13.0 data from METOP satellite. The idea is to read
BUFR and write to a more friendly format like HDF or NETCDF. I was thinking
of using GRADS for this.

However, I cannot find the WMO 13.0 tables for GRADS. In the WMO website the
tables are in doc, pdf and in ASCII but on a different layout.

Am I supposed to do some perl script to convert from WMO provided ascii
tables to GRADS ascii tables??


From ela at COLA.IGES.ORG  Tue Sep 15 11:49:03 2009
From: ela at COLA.IGES.ORG (Eric Altshuler)
Date: Tue, 15 Sep 2009 11:49:03 -0400
Subject: sdfwrite [was: Re: command in GrADS 2.0.a5.oga.5]
In-Reply-To: <1191101145.68361253029731242.JavaMail.root@mail.iges.org>
Message-ID: <TUE.15.SEP.2009.114903.0400.>

Hello Farshid,

sdfwrite is not a script. It's a built-in command, and you need grads 2.0.a3 or higher to use it. You mentioned that you use the grads executable 'gradsc'. This means you are using an old version of grads. Beginning with grads 2.0, the 'gradsc' executable does not exist anymore. There are only two grads executables, 'grads' and 'gradsdap'. Get the latest version of grads; the sdfwrite command will be available.

Best regards,

Eric L. Altshuler
Assistant Research Scientist
Center for Ocean-Land-Atmosphere Studies
4041 Powder Mill Road, Suite 302
Calverton, MD 20705-3106
USA

E-mail: ela at cola.iges.org
Phone: (301) 902-1257
Fax: (301) 595-9793

----- Original Message -----
From: "Farshid Daryabor" <fdaryabor at GOOGLEMAIL.COM>
To: GRADSUSR at LIST.CINECA.IT
Sent: Tuesday, September 15, 2009 5:19:37 AM GMT -05:00 US/Canada Eastern
Subject: Re: command in GrADS 2.0.a5.oga.5

Hi
I try for downloading 'sdfwrite' script from " http://www.iges.org/grads/gadoc/library.html " but can't find it, because when I open 'my_data.ctl' in './gradsc' I face to following massage:

ga-> open /home/Arya/fDaryabor/Roms_tools/Run/binary2netcdf.ctl
Scanning description file: /home/Arya/fDaryabor/Roms_tools/Run/binary2netcdf.ctl
Data file /home/Arya/fDaryabor/Roms_tools/Run/emp.dat is open as file 1
LON set to 0 360
LAT set to 180 359
LEV set to 0 0
Time values set: 1960:1:16:5 1960:1:16:5
ga-> set lon 98 120
LON set to 98 120
ga-> set lat -10 20
LAT set to -10 20
ga-> set t 05z16jan1960 1mo
Time values set: 1960:5:16:5 1960:1:16:5
ga-> set sdfwrite /home/Arya/Desktop/EMP.nc
SET error: Invalid operand
Operand = sdfwrite /home/arya/desktop/ emp.nc
I think must download "sdfwrite" script, please you help me, and give me straight address for find it.
Best Regards
F.Daryabor



On Tue, Sep 15, 2009 at 4:03 PM, ????????? < rust123 at yahoo.cn > wrote:





hello,everyone
what are the shortcut keys of the copy and paste command in GrADS 2.0.a5.oga.5,thank you in advance.the shfit+insert could not be used in the windows xp.




???????????? hersala < hersala at GMAIL.COM >
???????????? GRADSUSR at LIST.CINECA.IT
???????????? 2009/9/15(??????), ?? ???12:32:44
????????? Re: GS files in GrADS 2.0.a5.oga.5

Hi Hyacinth:
When I use my own scripts or from another person, I save them in the same folder from where the data is read by GrADS, that is win32 folder.
I hope this help you.
Bye,
Hern???n


2009/9/13 Hyacinth Cyprain Nnamchi < hc.nnamchi at lasg.iap.ac.cn >


Dear Colleagues,

I am using GrADS 2.0.a5.oga.5 from the Opengrads download page ( http://sourceforge.net/projects/opengrads/files/ ) on MS Windows.I notice that it does not recognise the in-built .gs files like cbar.gs , cbarn.gs etc, although I have confirmed that they are in the "scripts" file.

Does anyone know what could be wrong, where should I place the .gs files?


Thanks,
hyacinth




--

Hyacinth C. Nnamchi
TWAS-CAS Fellow
State Key Laboratory of Numerical Modeling for
Atmospheric Sciences and Geophysical Fluid Dynamics (LASG)
Institute of Atmospheric Physics (IAP)
Chinese Academy of Sciences (CAS)
P.O.Box 9804, Beijing 100029, China
Tel: +86-13488719702
Fax: +86-10-82995172
E-mail:hc.nnamchi at lasg.iap.ac.cn



????????????????? ?????????????????????????? ??????


From rajkumar_62 at REDIFFMAIL.COM  Tue Sep 15 13:56:29 2009
From: rajkumar_62 at REDIFFMAIL.COM (Raj Kumar Sharma)
Date: Tue, 15 Sep 2009 17:56:29 -0000
Subject: Standard deviation of particular location and of area
Message-ID: <TUE.15.SEP.2009.175629.0000.>

Hi, I have file containing global values of variable for whole year. I would like to compute Average &amp; Standard Deviation for Particular Location and also for defined area.I had written script to compute Std Dev for a particular location, however it is showing error. It will be great if someone can help.
Raj
'reinit''set display color white'clear'set gxout shaded''open pqfull.ctl'ln = 60lt = -10it = 1et = 5
'set lon 'ln'set lat 'lt
'd ave(whu,t='it',t='et')'lin=sublin(result,2)avg = subwrd(lin,4)say 'AAAA 'avgwhile(t&lt;'et')sg = sg + (avg-whu)df = &nbsp;pow(sg,2)endwhiledt = et-it+1std = df/dt'd sqrt(std)'std = subwrd(result,4)say 'STD DEV = ',stdreturn

Dr Raj Kumar

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From Charles.Seman at NOAA.GOV  Tue Sep 15 14:28:44 2009
From: Charles.Seman at NOAA.GOV (Charles Seman)
Date: Tue, 15 Sep 2009 14:28:44 -0400
Subject: Standard deviation of particular location and of area
In-Reply-To: <20090915175629.51348.qmail@f5mail-237-242.rediffmail.com>
Message-ID: <TUE.15.SEP.2009.142844.0400.>

Raj,

here's some documentation from a script used to calculate standard
deviation:

*  From statistics (reference: "Statistical Concepts and Methods"
*  by Bhattacharyya and Johnson (1977)), the sample variance s**2
*  for a set of "N" observations of a variable "xi" (x1,...,xN)
*  is defined as:
*
*    s**2 = [(x1-xbar)**2 + (x2-xbar)**2 + (x3-xbar)**2 +....
*          + (xN-xbar)**2 ]/(N-1) ,  (from page 34)
*
*  where the sample mean = xbar = (x1+x2+x3+...+xN)/N , (from page 27)
*
*  Note, the sample variance sums over "N" observations, and divides the
*  sum by "N-1"...
*
*  The sample standard deviation is defined as the square root of the
*  sample variance (from page 35):
*
*    s = sqrt(s**2)

perhaps you could try (please check for mistakes)
...same as in your email, then
sg = 0
tt = it
while(tt<='et')
'set t 'tt
...define whu at t = "tt"
sg = sg + pow((avg-whu),2)
endwhile
dt = et-it+1
sv = sg/(dt-1)   * sample variance
'd sqrt(sv)'
std = subwrd(result,4)
say 'STD DEV = ',std

Hope this helps,
Chuck

Raj Kumar Sharma wrote:
> Hi, I have file containing global values of variable for whole year. I
> would like to compute Average & Standard Deviation for Particular
> Location and also for defined area.
> I had written script to compute Std Dev for a particular location,
> however it is showing error. It will be great if someone can help.
>
> Raj
>
> 'reinit'
> 'set display color white'
> clear
> 'set gxout shaded'
> 'open pqfull.ctl'
> ln = 60
> lt = -10
> it = 1
> et = 5
>
> 'set lon 'ln
> 'set lat 'lt
>
> 'd ave(whu,t='it',t='et')'
> lin=sublin(result,2)
> avg = subwrd(lin,4)
> say 'AAAA 'avg
> while(t<'et')
> sg = sg + (avg-whu)
> df =  pow(sg,2)
> endwhile
> dt = et-it+1
> std = df/dt
> 'd sqrt(std)'
> std = subwrd(result,4)
> say 'STD DEV = ',std
> return
>
>
> Dr Raj Kumar
>
>
> <http://sigads.rediff.com/RealMedia/ads/click_nx.ads/www.rediffmail.com/signatureline.htm at Middle?>

--

Please note that Charles.Seman at noaa.gov should be considered my NOAA
email address, not cjs at gfdl.noaa.gov.

********************************************************************
 Charles Seman                                Charles.Seman at noaa.gov
 U.S. Department of Commerce / NOAA / OAR
 Geophysical Fluid Dynamics Laboratory         voice: (609) 452-6547
 201 Forrestal Road                              fax: (609) 987-5063
 Princeton, NJ  08540-6649            http://www.gfdl.noaa.gov/~cjs/
********************************************************************

"The contents of this message are mine personally and do not necessarily
reflect any position of the Government or NOAA."


From Felix.Navejar at NOAA.GOV  Tue Sep 15 14:32:18 2009
From: Felix.Navejar at NOAA.GOV (Felix Navejar)
Date: Tue, 15 Sep 2009 13:32:18 -0500
Subject: Unsubscribe
Message-ID: <TUE.15.SEP.2009.133218.0500.>

Hey All,

Loved the emails, but too much love can be too much. :)

Felix


From ambarish.jash at GMAIL.COM  Tue Sep 15 14:44:19 2009
From: ambarish.jash at GMAIL.COM (Ambarish Jash)
Date: Tue, 15 Sep 2009 12:44:19 -0600
Subject: Unsubscribe
In-Reply-To: <89fe3d026a82bc92.4aaf9762@noaa.gov>
Message-ID: <TUE.15.SEP.2009.124419.0600.>

unsubscribe
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From changliang at HHU.EDU.CN  Tue Sep 15 21:24:16 2009
From: changliang at HHU.EDU.CN (changliang)
Date: Wed, 16 Sep 2009 09:24:16 +0800
Subject: unsubscribe
Message-ID: <WED.16.SEP.2009.092416.0800.>


unsubscribe
2009-09-16



changliang
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From fdaryabor at GOOGLEMAIL.COM  Wed Sep 16 00:55:54 2009
From: fdaryabor at GOOGLEMAIL.COM (Farshid Daryabor)
Date: Wed, 16 Sep 2009 00:55:54 -0400
Subject: sdfwrite [was: Re: command in GrADS 2.0.a5.oga.5]
In-Reply-To: <1342339260.68381253029743820.JavaMail.root@mail.iges.org>
Message-ID: <WED.16.SEP.2009.005554.0400.>

Hi Eric Altshuler
Thanks so much for your guide. I try download grads 2.0.a3.
Best Regards
F.Daryabor

On Tue, Sep 15, 2009 at 11:49 AM, Eric Altshuler <ela at cola.iges.org> wrote:

> Hello Farshid,
>
> sdfwrite is not a script. It's a built-in command, and you need grads
> 2.0.a3 or higher to use it. You mentioned that you use the grads executable
> 'gradsc'. This means you are using an old version of grads. Beginning with
> grads 2.0, the 'gradsc' executable does not exist anymore. There are only
> two grads executables, 'grads' and 'gradsdap'. Get the latest version of
> grads; the sdfwrite command will be available.
>
> Best regards,
>
> Eric L. Altshuler
> Assistant Research Scientist
> Center for Ocean-Land-Atmosphere Studies
> 4041 Powder Mill Road, Suite 302
> Calverton, MD 20705-3106
> USA
>
> E-mail: ela at cola.iges.org
> Phone: (301) 902-1257
> Fax: (301) 595-9793
>
> ----- Original Message -----
> From: "Farshid Daryabor" <fdaryabor at GOOGLEMAIL.COM>
> To: GRADSUSR at LIST.CINECA.IT
> Sent: Tuesday, September 15, 2009 5:19:37 AM GMT -05:00 US/Canada Eastern
> Subject: Re: command in GrADS 2.0.a5.oga.5
>
> Hi
> I try for downloading 'sdfwrite' script from "
> http://www.iges.org/grads/gadoc/library.html " but can't find it, because
> when I open 'my_data.ctl' in './gradsc' I face to following massage:
>
> ga-> open /home/Arya/fDaryabor/Roms_tools/Run/binary2netcdf.ctl
> Scanning description file:
> /home/Arya/fDaryabor/Roms_tools/Run/binary2netcdf.ctl
> Data file /home/Arya/fDaryabor/Roms_tools/Run/emp.dat is open as file 1
> LON set to 0 360
> LAT set to 180 359
> LEV set to 0 0
> Time values set: 1960:1:16:5 1960:1:16:5
> ga-> set lon 98 120
> LON set to 98 120
> ga-> set lat -10 20
> LAT set to -10 20
> ga-> set t 05z16jan1960 1mo
> Time values set: 1960:5:16:5 1960:1:16:5
> ga-> set sdfwrite /home/Arya/Desktop/EMP.nc
> SET error: Invalid operand
> Operand = sdfwrite /home/arya/desktop/ emp.nc
> I think must download "sdfwrite" script, please you help me, and give me
> straight address for find it.
> Best Regards
> F.Daryabor
>
>
>
> On Tue, Sep 15, 2009 at 4:03 PM, ??? < rust123 at yahoo.cn > wrote:
>
>
>
>
>
> hello,everyone
> what are the shortcut keys of the copy and paste command in GrADS
> 2.0.a5.oga.5,thank you in advance.the shfit+insert could not be used in the
> windows xp.
>
>
>
>
> ???? hersala < hersala at GMAIL.COM >
> ???? GRADSUSR at LIST.CINECA.IT
> ???? 2009/9/15(??), ?? ?12:32:44
> ??? Re: GS files in GrADS 2.0.a5.oga.5
>
> Hi Hyacinth:
> When I use my own scripts or from another person, I save them in the same
> folder from where the data is read by GrADS, that is win32 folder.
> I hope this help you.
> Bye,
> Hern?n
>
>
> 2009/9/13 Hyacinth Cyprain Nnamchi < hc.nnamchi at lasg.iap.ac.cn >
>
>
> Dear Colleagues,
>
> I am using GrADS 2.0.a5.oga.5 from the Opengrads download page (
> http://sourceforge.net/projects/opengrads/files/ ) on MS Windows.I notice
> that it does not recognise the in-built .gs files like cbar.gs , cbarn.gsetc, although I have confirmed that they are in the "scripts" file.
>
> Does anyone know what could be wrong, where should I place the .gs files?
>
>
> Thanks,
> hyacinth
>
>
>
>
> --
>
> Hyacinth C. Nnamchi
> TWAS-CAS Fellow
> State Key Laboratory of Numerical Modeling for
> Atmospheric Sciences and Geophysical Fluid Dynamics (LASG)
> Institute of Atmospheric Physics (IAP)
> Chinese Academy of Sciences (CAS)
> P.O.Box 9804, Beijing 100029, China
> Tel: +86-13488719702
> Fax: +86-10-82995172
> E-mail:hc.nnamchi at lasg.iap.ac.cn <E-mail%3Ahc.nnamchi at lasg.iap.ac.cn>
>
>
>
> ??????? ?????????? ??
>
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From preuter at LABRI.FR  Wed Sep 16 01:23:03 2009
From: preuter at LABRI.FR (Patrick Reuter)
Date: Wed, 16 Sep 2009 07:23:03 +0200
Subject: unsubscribe
Message-ID: <WED.16.SEP.2009.072303.0200.>

3rd try.

Please unscubscribe me.


From hersala at GMAIL.COM  Wed Sep 16 09:29:07 2009
From: hersala at GMAIL.COM (hersala)
Date: Wed, 16 Sep 2009 10:29:07 -0300
Subject: About sdfwrite
Message-ID: <WED.16.SEP.2009.102907.0300.>

Hi Farshid:
Take in account that sdfwrite is a command and not an script and that it
works with GrADS version 2.0.a3 (or higher).
You will find more info in:
http://www.iges.org/grads/gadoc/gadocindex.html
Regards,
Hern?n


2009/9/15 Farshid Daryabor <fdaryabor at googlemail.com>

> Hi
> I try for downloading 'sdfwrite'  script from "
> http://www.iges.org/grads/gadoc/library.html" but can't find it, because
> when I open 'my_data.ctl' in './gradsc' I face to following massage:
>
> ga-> open /home/Arya/fDaryabor/Roms_tools/Run/binary2netcdf.ctl
> Scanning description file:
> /home/Arya/fDaryabor/Roms_tools/Run/binary2netcdf.ctl
> Data file /home/Arya/fDaryabor/Roms_tools/Run/emp.dat is open as file 1
> LON set to 0 360
> LAT set to 180 359
> LEV set to 0 0
> Time values set: 1960:1:16:5 1960:1:16:5
> ga-> set lon 98 120
> LON set to 98 120
> ga-> set lat -10 20
> LAT set to -10 20
> ga-> set t 05z16jan1960 1mo
> Time values set: 1960:5:16:5 1960:1:16:5
> ga->  set sdfwrite /home/Arya/Desktop/EMP.nc
> SET error: Invalid operand
>   Operand = sdfwrite /home/arya/desktop/emp.nc
> I think must download "sdfwrite" script, please you help me, and give me
> straight address for find it.
> Best Regards
> F.Daryabor
>
>
>
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From fdaryabor at GOOGLEMAIL.COM  Wed Sep 16 22:26:56 2009
From: fdaryabor at GOOGLEMAIL.COM (Farshid Daryabor)
Date: Thu, 17 Sep 2009 10:26:56 +0800
Subject: About sdfwrite
In-Reply-To: <5b40c90909160629n49ba024cn730a89e25b5eca99@mail.gmail.com>
Message-ID: <THU.17.SEP.2009.102656.0800.>

Hi Hernan
TQ for your guid
Best Regards for you
FARSHID

On Wed, Sep 16, 2009 at 9:29 PM, hersala <hersala at gmail.com> wrote:

> Hi Farshid:
> Take in account that sdfwrite is a command and not an script and that it
> works with GrADS version 2.0.a3 (or higher).
> You will find more info in:
> http://www.iges.org/grads/gadoc/gadocindex.html
> Regards,
> Hern?n
>
>
> 2009/9/15 Farshid Daryabor <fdaryabor at googlemail.com>
>
>> Hi
>> I try for downloading 'sdfwrite'  script from "
>> http://www.iges.org/grads/gadoc/library.html" but can't find it, because
>> when I open 'my_data.ctl' in './gradsc' I face to following massage:
>>
>> ga-> open /home/Arya/fDaryabor/Roms_tools/Run/binary2netcdf.ctl
>> Scanning description file:
>> /home/Arya/fDaryabor/Roms_tools/Run/binary2netcdf.ctl
>> Data file /home/Arya/fDaryabor/Roms_tools/Run/emp.dat is open as file 1
>> LON set to 0 360
>> LAT set to 180 359
>> LEV set to 0 0
>> Time values set: 1960:1:16:5 1960:1:16:5
>> ga-> set lon 98 120
>> LON set to 98 120
>> ga-> set lat -10 20
>> LAT set to -10 20
>> ga-> set t 05z16jan1960 1mo
>> Time values set: 1960:5:16:5 1960:1:16:5
>> ga->  set sdfwrite /home/Arya/Desktop/EMP.nc
>> SET error: Invalid operand
>>   Operand = sdfwrite /home/arya/desktop/emp.nc
>> I think must download "sdfwrite" script, please you help me, and give me
>> straight address for find it.
>> Best Regards
>> F.Daryabor
>>
>>
>>
>
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From fdaryabor at GOOGLEMAIL.COM  Thu Sep 17 03:17:20 2009
From: fdaryabor at GOOGLEMAIL.COM (Farshid Daryabor)
Date: Thu, 17 Sep 2009 15:17:20 +0800
Subject: sdfwrite [was: Re: command in GrADS 2.0.a5.oga.5]
In-Reply-To: <9b8832d50909152155p1decef20g1cbd8950420513a1@mail.gmail.com>
Message-ID: <THU.17.SEP.2009.151720.0800.>

Hi all
I could use 'sdfwrite', now I want to input 2 variables  'u' and 'v' in one
netcdf file.  I write a script for execute , after 'set sdfwrite
/hom2/../VAR.nc' when I type 'sdfwrite' command which is 'sdfwrite uwind
vwind.2' for writing 2 variables  in  netcdf file, it only gives me one of
them not both. Please guide me.


'open /home2/fdaryabor/Documents/U.ctl'
'open /home2/fdaryabor/Documents/V.ctl'
'set lon 0 360'
'set lat 180 359'
'set lev 0 0'
'set t 1 last'
'set e 1 last'
'define uwind=u'
'define vwind=v.2'
'set sdfwrite /home2/fdaryabor/Documents/VAR.nc'
'sdfwrite uwind vwind.2'

Best Regards
F.Daryabor

On Wed, Sep 16, 2009 at 12:55 PM, Farshid Daryabor <fdaryabor at googlemail.com
> wrote:

> Hi Eric Altshuler
> Thanks so much for your guide. I try download grads 2.0.a3.
> Best Regards
> F.Daryabor
>
>
> On Tue, Sep 15, 2009 at 11:49 AM, Eric Altshuler <ela at cola.iges.org>wrote:
>
>> Hello Farshid,
>>
>> sdfwrite is not a script. It's a built-in command, and you need grads
>> 2.0.a3 or higher to use it. You mentioned that you use the grads executable
>> 'gradsc'. This means you are using an old version of grads. Beginning with
>> grads 2.0, the 'gradsc' executable does not exist anymore. There are only
>> two grads executables, 'grads' and 'gradsdap'. Get the latest version of
>> grads; the sdfwrite command will be available.
>>
>> Best regards,
>>
>> Eric L. Altshuler
>> Assistant Research Scientist
>> Center for Ocean-Land-Atmosphere Studies
>> 4041 Powder Mill Road, Suite 302
>> Calverton, MD 20705-3106
>> USA
>>
>> E-mail: ela at cola.iges.org
>> Phone: (301) 902-1257
>> Fax: (301) 595-9793
>>
>> ----- Original Message -----
>> From: "Farshid Daryabor" <fdaryabor at GOOGLEMAIL.COM>
>> To: GRADSUSR at LIST.CINECA.IT
>> Sent: Tuesday, September 15, 2009 5:19:37 AM GMT -05:00 US/Canada Eastern
>> Subject: Re: command in GrADS 2.0.a5.oga.5
>>
>> Hi
>> I try for downloading 'sdfwrite' script from "
>> http://www.iges.org/grads/gadoc/library.html " but can't find it, because
>> when I open 'my_data.ctl' in './gradsc' I face to following massage:
>>
>> ga-> open /home/Arya/fDaryabor/Roms_tools/Run/binary2netcdf.ctl
>> Scanning description file:
>> /home/Arya/fDaryabor/Roms_tools/Run/binary2netcdf.ctl
>> Data file /home/Arya/fDaryabor/Roms_tools/Run/emp.dat is open as file 1
>> LON set to 0 360
>> LAT set to 180 359
>> LEV set to 0 0
>> Time values set: 1960:1:16:5 1960:1:16:5
>> ga-> set lon 98 120
>> LON set to 98 120
>> ga-> set lat -10 20
>> LAT set to -10 20
>> ga-> set t 05z16jan1960 1mo
>> Time values set: 1960:5:16:5 1960:1:16:5
>> ga-> set sdfwrite /home/Arya/Desktop/EMP.nc
>> SET error: Invalid operand
>> Operand = sdfwrite /home/arya/desktop/ emp.nc
>> I think must download "sdfwrite" script, please you help me, and give me
>> straight address for find it.
>> Best Regards
>> F.Daryabor
>>
>>
>>
>> On Tue, Sep 15, 2009 at 4:03 PM, ??? < rust123 at yahoo.cn > wrote:
>>
>>
>>
>>
>>
>> hello,everyone
>> what are the shortcut keys of the copy and paste command in GrADS
>> 2.0.a5.oga.5,thank you in advance.the shfit+insert could not be used in the
>> windows xp.
>>
>>
>>
>>
>> ???? hersala < hersala at GMAIL.COM >
>> ???? GRADSUSR at LIST.CINECA.IT
>> ???? 2009/9/15(??), ?? ?12:32:44
>> ??? Re: GS files in GrADS 2.0.a5.oga.5
>>
>> Hi Hyacinth:
>> When I use my own scripts or from another person, I save them in the same
>> folder from where the data is read by GrADS, that is win32 folder.
>> I hope this help you.
>> Bye,
>> Hern?n
>>
>>
>> 2009/9/13 Hyacinth Cyprain Nnamchi < hc.nnamchi at lasg.iap.ac.cn >
>>
>>
>> Dear Colleagues,
>>
>> I am using GrADS 2.0.a5.oga.5 from the Opengrads download page (
>> http://sourceforge.net/projects/opengrads/files/ ) on MS Windows.I notice
>> that it does not recognise the in-built .gs files like cbar.gs , cbarn.gsetc, although I have confirmed that they are in the "scripts" file.
>>
>> Does anyone know what could be wrong, where should I place the .gs files?
>>
>>
>> Thanks,
>> hyacinth
>>
>>
>>
>>
>> --
>>
>> Hyacinth C. Nnamchi
>> TWAS-CAS Fellow
>> State Key Laboratory of Numerical Modeling for
>> Atmospheric Sciences and Geophysical Fluid Dynamics (LASG)
>> Institute of Atmospheric Physics (IAP)
>> Chinese Academy of Sciences (CAS)
>> P.O.Box 9804, Beijing 100029, China
>> Tel: +86-13488719702
>> Fax: +86-10-82995172
>> E-mail:hc.nnamchi at lasg.iap.ac.cn <E-mail%3Ahc.nnamchi at lasg.iap.ac.cn>
>>
>>
>>
>> ??????? ?????????? ??
>>
>
>
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From sushantpuranik at GMAIL.COM  Thu Sep 17 03:54:44 2009
From: sushantpuranik at GMAIL.COM (sushant puranik)
Date: Thu, 17 Sep 2009 13:24:44 +0530
Subject: How to store images continuously
Message-ID: <THU.17.SEP.2009.132444.0530.>

Hi
Is it possible to store images continuously with the help of scripting.
For example I has a ECMWF data at 00, 06 , 12 and 18 UTC and also for whole
month in a single file (netcdf file) .
Is there any script by which i can store image at each observation hour and
also for each day  of whole month with the help of single script.

If so then any one has such script?


Sushant
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From eliavs at GMAIL.COM  Thu Sep 17 04:21:38 2009
From: eliavs at GMAIL.COM (eliav schmulewitz)
Date: Thu, 17 Sep 2009 11:21:38 +0300
Subject: How to store images continuously
In-Reply-To: <72e8bd3d0909170054j17fa67f8p93c74d22d8bfb7fe@mail.gmail.com>
Message-ID: <THU.17.SEP.2009.112138.0300.>

Hi Sushant
i am not sure if this is what you meant but i attached 2 scripts of mine
look at it and let me know
eliav
On Thu, Sep 17, 2009 at 10:54 AM, sushant puranik
<sushantpuranik at gmail.com>wrote:

> Hi
> Is it possible to store images continuously with the help of scripting.
> For example I has a ECMWF data at 00, 06 , 12 and 18 UTC and also for whole
> month in a single file (netcdf file) .
> Is there any script by which i can store image at each observation hour and
> also for each day  of whole month with the help of single script.
>
> If so then any one has such script?
>
>
> Sushant
>
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From javier.p at EREDA.COM  Thu Sep 17 05:23:31 2009
From: javier.p at EREDA.COM (=?ISO-8859-1?Q?Javier_Pe=F1a?=)
Date: Thu, 17 Sep 2009 11:23:31 +0200
Subject: Help
Message-ID: <THU.17.SEP.2009.112331.0200.>

We have some data in a netcdf file (u velocity, v velocity,
geopetential,ect) to some dates and some points of a grid.
Now, we extract each variable in a file with following script:
For example to extract the temperature:

'reinit'
'sdfopen ereda'
'set lat 41'
'set lon 359'
'set lev 1'
to = 1
* Write the variable to a file
*'set gxout vector'
*'set fwrite z:\dummy.dat'
while (to<5)
'set t 'to
'd t'
rrc = write('c:\prueba_c\pruebas_archivo_ecmwf\ereda_ecmwf_t.txt',result)
to = to + 1
endwhile
We'd like to extract all variables in a same file and the variables are in
differents columns.
Are there any script to do this?

-- 
Javier Pe?a ?lvarez
Energ?as Renovables
javier.p at ereda.com
EREDA

                           Tel:  +34 91 5014755
                           Fax: +34 91 5014756
                 c/ T?llez 26, 28007 MADRID
                                   www.ereda.com
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From matt.alonso at GMAIL.COM  Thu Sep 17 06:07:42 2009
From: matt.alonso at GMAIL.COM (Matt Alonso)
Date: Thu, 17 Sep 2009 10:07:42 +0000
Subject: Help
In-Reply-To: <607bb2140909170223n5496cf0ai480b78f62be80056@mail.gmail.com>
Message-ID: <THU.17.SEP.2009.100742.0000.>

Try creating an array with all the variable names as strings and loop over that inside the WHILE loop. 

If you need more clarification I can send you an example once I get to my computer.

Cheers,
Matt
Sent from my Verizon Wireless BlackBerry

-----Original Message-----
From: Javier Pe?a <javier.p at EREDA.COM>

Date:         Thu, 17 Sep 2009 11:23:31 
To: <GRADSUSR at LIST.CINECA.IT>
Subject:      Help


We have some data in a netcdf file (u velocity, v velocity,
geopetential,ect) to some dates and some points of a grid.
Now, we extract each variable in a file with following script:
For example to extract the temperature:

'reinit'
'sdfopen ereda'
'set lat 41'
'set lon 359'
'set lev 1'
to = 1
* Write the variable to a file
*'set gxout vector'
*'set fwrite z:\dummy.dat'
while (to<5)
'set t 'to
'd t'
rrc = write('c:\prueba_c\pruebas_archivo_ecmwf\ereda_ecmwf_t.txt',result)
to = to + 1
endwhile
We'd like to extract all variables in a same file and the variables are in
differents columns.
Are there any script to do this?

-- 
Javier Pe?a ?lvarez
Energ?as Renovables
javier.p at ereda.com
EREDA

                           Tel:  +34 91 5014755
                           Fax: +34 91 5014756
                 c/ T?llez 26, 28007 MADRID
                                   www.ereda.com

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From kwmski7 at SNU.AC.KR  Thu Sep 17 06:05:02 2009
From: kwmski7 at SNU.AC.KR (Kim WonMoo)
Date: Thu, 17 Sep 2009 19:05:02 +0900
Subject: Help
In-Reply-To: <607bb2140909170223n5496cf0ai480b78f62be80056@mail.gmail.com>
Message-ID: <THU.17.SEP.2009.190502.0900.>

Try this :

in the 'while' loop,
------------------------------------------
while ( to<5 )
 'set t 'to
 tmp=''
 'd var1' ; tmp=subwrd(result,4)
 'd var2' ; tmp=tmp%' 'subwrd(result,4)
 'd var3' ; tmp=tmp%' 'subwrd(result,4)
 'd var4' ; tmp=tmp%' 'subwrd(result,4)
 rrc = write('c:\prueba_c\pruebas_archivo_ecmwf\ereda_ecmwf_t.txt',tmp)
 to = to + 1
endwhile
------------------------------------------

so that before you write to ~.txt file, make a augmented outputs as in the script.

here, subwrd(result,4) is used, for the 4th word of the 'result' contains the value.

Good luck,
Kim, WonMoo



From: Javier Pe?a 
Sent: Thursday, September 17, 2009 6:23 PM
To: GRADSUSR at LIST.CINECA.IT 
Subject: Help


We have some data in a netcdf file (u velocity, v velocity, geopetential,ect) to some dates and some points of a grid.
Now, we extract each variable in a file with following script:
For example to extract the temperature:
 
'reinit'
'sdfopen ereda'
'set lat 41'
'set lon 359'
'set lev 1'
to = 1
* Write the variable to a file
*'set gxout vector'
*'set fwrite z:\dummy.dat'
while (to<5)
'set t 'to
'd t'
rrc = write('c:\prueba_c\pruebas_archivo_ecmwf\ereda_ecmwf_t.txt',result)
to = to + 1
endwhile

We'd like to extract all variables in a same file and the variables are in differents columns. 
Are there any script to do this?


-- 
Javier Pe?a ?lvarez
Energ?as Renovables
javier.p at ereda.com
EREDA

                           Tel:  +34 91 5014755
                           Fax: +34 91 5014756
                 c/ T?llez 26, 28007 MADRID
                                   www.ereda.com
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From sushantpuranik at GMAIL.COM  Thu Sep 17 08:37:11 2009
From: sushantpuranik at GMAIL.COM (sushant puranik)
Date: Thu, 17 Sep 2009 18:07:11 +0530
Subject: How to store images continuously
In-Reply-To: <128fb9ed0909170121y49c13363ja4b73fd75edda33d@mail.gmail.com>
Message-ID: <THU.17.SEP.2009.180711.0530.>

Thank you very much Sir.
It works.
Again thank you for the script

Sushant

On Thu, Sep 17, 2009 at 1:51 PM, eliav schmulewitz <eliavs at gmail.com> wrote:

>
> Hi Sushant
> i am not sure if this is what you meant but i attached 2 scripts of mine
> look at it and let me know
> eliav
>
> On Thu, Sep 17, 2009 at 10:54 AM, sushant puranik <
> sushantpuranik at gmail.com> wrote:
>
>> Hi
>> Is it possible to store images continuously with the help of scripting.
>> For example I has a ECMWF data at 00, 06 , 12 and 18 UTC and also for
>> whole month in a single file (netcdf file) .
>> Is there any script by which i can store image at each observation hour
>> and also for each day  of whole month with the help of single script.
>>
>> If so then any one has such script?
>>
>>
>> Sushant
>>
>
>
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From javier.p at EREDA.COM  Thu Sep 17 09:22:44 2009
From: javier.p at EREDA.COM (=?ISO-8859-1?Q?Javier_Pe=F1a?=)
Date: Thu, 17 Sep 2009 15:22:44 +0200
Subject: Help
In-Reply-To: <BEDAC5D324A740728B63E52CBA85C504@KimWonMooPC>
Message-ID: <THU.17.SEP.2009.152244.0200.>

Thank so much for your reply.
With the script you have sent me:

'reinit'
'sdfopen ereda'
'set lat 41'
'set lon 359'
'set lev 1'
to = 1
* Write the variable to a file
*'set gxout vector'
*'set fwrite z:\dummy.dat'
while (to<5)
'set t 'to
tmp=''
tmp=subwrd(rerult,4)
'd u';tmp=tmp%''subwrd(result,4)
rrc = write('c:\prueba_c\pruebas_archivo_ecmwf\prueba3.txt',tmp)
tmp=subwrd(rerult,4)
'd v';tmp=tmp%''subwrd(result,4)
rrc = write('c:\prueba_c\pruebas_archivo_ecmwf\prueba3.txt',tmp)
to = to + 1
endwhile
set lev 1
I've gotten the following result:

0.261717
-2.01558
2.12168
-4.01917
1.91571
-4.87874
0.710381
-3.54395

In the first row, the fist data of the u velocity appears; in the second
row, the second data of the v velocity appears, in the third row, the second
data of the u velocity appears; in the fourth row, the second data of the v
velocity appears.
This is fine but I'd would like the following: The first data of u velocity
appears in the first row and first column, the second data of u velocity
appears in the second row and first column,... The first data of v velocity
appears in the first row and second column; the second data of velicity
appears in the second row and the second column,...
I mean, somethink similar like this:
 0.261717        -2.01558
2.12168          -4.01917
1.91571          -4.87874
0.710381        -3.54395
It say like a array o matrix.
Is it possible to do that?

Best Regards:

Javier Pe?a


2009/9/17 Kim WonMoo <kwmski7 at snu.ac.kr>

>  Try this :
>
> in the 'while' loop,
> ------------------------------------------
>  while ( to<5 )
>  'set t 'to
>  tmp=''
>  'd var1' ; tmp=subwrd(result,4)
>  'd var2' ; tmp=tmp%' 'subwrd(result,4)
>  'd var3' ; tmp=tmp%' 'subwrd(result,4)
>  'd var4' ; tmp=tmp%' 'subwrd(result,4)
>  rrc = write('c:\prueba_c\pruebas_archivo_ecmwf\ereda_ecmwf_t.txt',tmp)
>  to = to + 1
> endwhile
> ------------------------------------------
>
> so that before you write to ~.txt file, make a augmented outputs as in the
> script.
>
> here, subwrd(result,4) is used, for the 4th word of the 'result' contains
> the value.
>
> Good luck,
> Kim, WonMoo
>
>
>  *From:* Javier Pe?a <javier.p at EREDA.COM>
> *Sent:* Thursday, September 17, 2009 6:23 PM
> *To:* GRADSUSR at LIST.CINECA.IT
> *Subject:* Help
>
> We have some data in a netcdf file (u velocity, v velocity,
> geopetential,ect) to some dates and some points of a grid.
> Now, we extract each variable in a file with following script:
> For example to extract the temperature:
>
> 'reinit'
> 'sdfopen ereda'
> 'set lat 41'
> 'set lon 359'
> 'set lev 1'
> to = 1
> * Write the variable to a file
> *'set gxout vector'
> *'set fwrite z:\dummy.dat'
> while (to<5)
> 'set t 'to
> 'd t'
> rrc = write('c:\prueba_c\pruebas_archivo_ecmwf\ereda_ecmwf_t.txt',result)
> to = to + 1
> endwhile
> We'd like to extract all variables in a same file and the variables are in
> differents columns.
> Are there any script to do this?
>
> --
> Javier Pe?a ?lvarez
> Energ?as Renovables
> javier.p at ereda.com
> EREDA
>
>                            Tel:  +34 91 5014755
>                            Fax: +34 91 5014756
>                  c/ T?llez 26, 28007 MADRID
>                                    www.ereda.com
>



-- 
Javier Pe?a ?lvarez
Energ?as Renovables
javier.p at ereda.com
EREDA

                           Tel:  +34 91 5014755
                           Fax: +34 91 5014756
                 c/ T?llez 26, 28007 MADRID
                                   www.ereda.com
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From claudiomet at GMAIL.COM  Thu Sep 17 11:27:14 2009
From: claudiomet at GMAIL.COM (claudio cortes)
Date: Thu, 17 Sep 2009 11:27:14 -0400
Subject: kml tiff size
Message-ID: <THU.17.SEP.2009.112714.0400.>

Hi users !

I'm exporting some grib files to kml format (for view the outputs in
GoogleEarth), but the tiff file generated is too small.
Is there any way to generate kml files with big tiff files ?

--
Claudio Cortes
+56 (2) 2994121

Meteorologo
Laboratorio de Meteorologia y Calidad de Aire
Centro Nacional del Medio Ambiente (CENMA)
--------------------------------------------------------------------------------------

Claudio Cortes
+56 (2) 2994121

Meteorologist
Meteorology and Air Quality Labs
National Enviroment Center, Chile (CENMA)


From yi_zhou01 at YAHOO.CA  Thu Sep 17 12:21:13 2009
From: yi_zhou01 at YAHOO.CA (yi zhou)
Date: Thu, 17 Sep 2009 09:21:13 -0700
Subject: Display NARR
Message-ID: <THU.17.SEP.2009.092113.0700.>

Hi Group members,

Could you please help me to solve the problem? 
My grads version: Grads2.0a3 under Window XP 2002

Now I am encountering a problem when open a NARR 3hr data. In order to practice, I download the data from NARR daily dataset website. the grib data name as:



 narr-a_221_20090912_0000_000.grd.?? I just download one variable:hgtpre and one level: 500 hpa level.? 
So I change the ctl file as: ls.ctl
==============================
dset? ^ls.grb
index ^ls.idx
undef 9.999E+20
title Select North American Regional Reanalysis - 3hr time steps
*
*? produced by grib2ctl v0.9.12.5p33h modified by hand v1.0 WNE
*
dtype grib 221
options template
pdef 349 277 lcc 1 -145.5 1 1 50 50 -107 32463 32463
xdef 1111 linear -250 0.333333
ydef 247 linear 8 0.333333
tdef 1 linear 00:00Z12sep2009 3hr
zdef 1 levels 500 
*
vars 1
HGTprs????????? 1 7,100,0??? anl Geopotential height [gpm]
ENDVARS
==================================
And then I use gribmap to create an index file: ls.idx
So far every thing is ok. Then I display hgtprs, the imformation shows as :
=========
ga->d hgtprs
Notice: Automatic Grid Interpolation Taking Place 
 Cannot contour grid - all undefined values. 
==================
 Thanks in advance.

Regards

Emily


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From zjuyanlibin at 163.COM  Thu Sep 17 12:55:50 2009
From: zjuyanlibin at 163.COM (=?utf-8?B?WWFuIExpYmlu?=)
Date: Fri, 18 Sep 2009 00:55:50 +0800
Subject: =?utf-8?B?UmU6IERpc3BsYXkgTkFSUg==?=
Message-ID: <FRI.18.SEP.2009.005550.0800.>

2009-09-18 



Yan Libin 



???? yi zhou 
????? 2009-09-18  00:31:19 
???? GRADSUSR 
??? 
??? Display NARR 
 
Hi Group members,

Could you please help me to solve the problem? 
My grads version: Grads2.0a3 under Window XP 2002

Now I am encountering a problem when open a NARR 3hr data. In order to practice, I download the data from NARR daily dataset website. the grib data name as: narr-a_221_20090912_0000_000.grd.   I just download one variable:hgtpre and one level: 500 hpa level.  
So I change the ctl file as: ls.ctl
==============================
dset  ^ls.grb
index ^ls.idx
undef 9.999E+20
title Select North American Regional Reanalysis - 3hr time steps
*
*  produced by grib2ctl v0.9.12.5p33h modified by hand v1.0 WNE
*
dtype grib 221
options template
>>> delete above line
pdef 349 277 lcc 1 -145.5 1 1 50 50 -107 32463 32463
xdef 1111 linear -250 0.333333
ydef 247 linear 8 0.333333
tdef 1 linear 00:00Z12sep2009 3hr
zdef 1 levels 500 
*
vars 1
HGTprs          1 7,100,0    anl Geopotential height [gpm]
ENDVARS
==================================
And then I use gribmap to create an index file: ls.idx
So far every thing is ok. Then I display hgtprs, the imformation shows as :
=========
ga->d hgtprs
Notice: Automatic Grid Interpolation Taking Place 
Cannot contour grid - all undefined values. 
>>> notice it, all undefined!!!
==================
Thanks in advance.

Regards

<!--[if !supportLineBreakNewLine]-->Emily
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From andrewhazelden at GMAIL.COM  Thu Sep 17 12:46:21 2009
From: andrewhazelden at GMAIL.COM (Andrew Hazelden)
Date: Thu, 17 Sep 2009 13:46:21 -0300
Subject: kml tiff size
In-Reply-To: <5f3ba4e00909170827x6c9aa23md49e0a92999d70c9@mail.gmail.com>
Message-ID: <THU.17.SEP.2009.134621.0300.>

Hi.

I am a fairly new GrADS user but this is the technique I have worked
out.

I export a dummy kml file + small tiff using gxout kml just for the
Google Earth GroundOverlay <LatLonBox> coordinates.
ga-> clear
ga->set kml /base_kml
ga->set gxout kml
ga->d mag(UGRD10m,VGRD10m) * 3.6

Then I use printim command to export a larger image in a format like
TIFF or PNG.
ga-> clear
ga-> set parea 0 11 0 8.5
ga-> set grid off
grid is off
ga-> set mproj scaled
ga-> set mpdraw off
ga-> set grads off
ga-> set gxout shaded
ga-> d mag(UGRD10m,VGRD10m) * 3.6
ga-> printim /wind_speed_layer.tif x2048 y1024 -t 0

Then I replace the reference in the KML file from the low resolution
tiff to the new image on the line:
   <href>/base_kml.tif</href>

Also in my experience Google Earth doesn't respect the transparency in
GrADS TIFF or GIF exports but does in PNG exports.

Regards,

Andrew Hazelden
Weather Enthusiast


On 17-Sep-09, at 12:27 PM, claudio cortes wrote:

> Hi users !
>
> I'm exporting some grib files to kml format (for view the outputs in
> GoogleEarth), but the tiff file generated is too small.
> Is there any way to generate kml files with big tiff files ?
>
> --
> Claudio Cortes
> +56 (2) 2994121
>
> Meteorologo
> Laboratorio de Meteorologia y Calidad de Aire
> Centro Nacional del Medio Ambiente (CENMA)
> --------------------------------------------------------------------------------------
>
> Claudio Cortes
> +56 (2) 2994121
>
> Meteorologist
> Meteorology and Air Quality Labs
> National Enviroment Center, Chile (CENMA)

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From gabriel.ud at GMAIL.COM  Thu Sep 17 13:30:24 2009
From: gabriel.ud at GMAIL.COM (Gabriel - ud Carvalho)
Date: Thu, 17 Sep 2009 14:30:24 -0300
Subject: color-filled continents
In-Reply-To: <4AAA9330.4090009@atmosfera.unam.mx>
Message-ID: <THU.17.SEP.2009.143024.0300.>

Valeu matias!

2009/9/11 Matias Mendez <matias at troposfera.atmosfcu.unam.mx>

> Hello Gabriel,
>
> You can try basemap.gs. This script overlays a land or ocean mask. You
> can get it, here:
>
> http://www.iges.org/grads/gadoc/library.html
>
> Good luck.
>
> Best regards,
> Matias
>
>
> Gabriel - ud Carvalho escribi?:
>
> Hi everybody!
>> Does somebody knows how to color the land?
>> the ?set map?or ?set mpt? only controls the color of the line of the
>> land (continent)!
>>
>> thanks a lot,
>>
>> Gabriel Carvalho
>> Oceanography Student
>> Rio de Janeiro
>> Brazil
>>
>>
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From claudiomet at GMAIL.COM  Thu Sep 17 13:30:49 2009
From: claudiomet at GMAIL.COM (claudio cortes)
Date: Thu, 17 Sep 2009 13:30:49 -0400
Subject: kml tiff size
In-Reply-To: <ED249252-A969-4F6E-8C7D-71A4485DE428@gmail.com>
Message-ID: <THU.17.SEP.2009.133049.0400.>

Thanks Andrew !
It works !

2009/9/17 Andrew Hazelden <andrewhazelden at gmail.com>:
> Hi.
> I am a fairly new GrADS user but this is the technique I have worked out.
> I export a dummy kml file + small tiff using gxout kml just for the Google
> Earth GroundOverlay <LatLonBox> coordinates.
> ga-> clear
> ga->set kml /base_kml
> ga->set gxout kml
> ga->d mag(UGRD10m,VGRD10m) * 3.6
> Then I use printim command to export a larger image in a format like TIFF or
> PNG.
> ga-> clear
> ga-> set parea 0 11 0 8.5
> ga-> set grid off
> grid is off
> ga-> set mproj scaled
> ga-> set mpdraw off
> ga-> set grads off
> ga-> set gxout shaded
> ga-> d mag(UGRD10m,VGRD10m) * 3.6
> ga-> printim /wind_speed_layer.tif x2048 y1024 -t 0
> Then I replace the reference in the KML file from the low resolution tiff to
> the new image on the line:
>   <href>/base_kml.tif</href>
> Also in my experience Google Earth doesn't respect the transparency in GrADS
> TIFF or GIF exports but does in PNG exports.
> Regards,
> Andrew Hazelden
> Weather Enthusiast
>
> On 17-Sep-09, at 12:27 PM, claudio cortes wrote:
>
> Hi users !
>
> I'm exporting some grib files to kml format (for view the outputs in
> GoogleEarth), but the tiff file generated is too small.
> Is there any way to generate kml files with big tiff files ?
>
> --
> Claudio Cortes
> +56 (2) 2994121
>
> Meteorologo
> Laboratorio de Meteorologia y Calidad de Aire
> Centro Nacional del Medio Ambiente (CENMA)
> --------------------------------------------------------------------------------------
>
> Claudio Cortes
> +56 (2) 2994121
>
> Meteorologist
> Meteorology and Air Quality Labs
> National Enviroment Center, Chile (CENMA)
>
>



--
Claudio Cortes
+56 (2) 2994121

Meteorologo
Laboratorio de Meteorologia y Calidad de Aire
Centro Nacional del Medio Ambiente (CENMA)
--------------------------------------------------------------------------------------

Claudio Cortes
+56 (2) 2994121

Meteorologist
Meteorology and Air Quality Labs
National Enviroment Center, Chile (CENMA)


From yi_zhou01 at YAHOO.CA  Fri Sep 18 00:19:51 2009
From: yi_zhou01 at YAHOO.CA (Emily)
Date: Thu, 17 Sep 2009 21:19:51 -0700
Subject: g2ctl.pl
Message-ID: <THU.17.SEP.2009.211951.0700.>

Hi group members,

I have a problem when run g2ctl.pl. Could you please figure out this problem?
My grads version is grads 2.0 a3, and run g2ctl.pl under window xp.
when I run
>g2ctl.pl? narr-a_221_20090912_0000_000.grb>narr-a_221_20090912_0000_000.ctl,
the .ctl is empty. 
here I downloaded the .grb data as a subset dataset. I just downloaded 1 variable hgtprs at 00z time and one level (500hpa).
please help me, thanks a lot 

Emily

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From mike.bosilovich at GMAIL.COM  Fri Sep 18 10:57:55 2009
From: mike.bosilovich at GMAIL.COM (Mike Bosilovich)
Date: Fri, 18 Sep 2009 10:57:55 -0400
Subject: sdfwrite [was: Re: command in GrADS 2.0.a5.oga.5]
In-Reply-To: <9b8832d50909170017s4e5dee66u2b48931cc3d9e1da@mail.gmail.com>
Message-ID: <FRI.18.SEP.2009.105755.0400.>

I just had a similar question, and asked Jennifer offline. So, what to
do is to build a call to ncks into your script, and it can append data
onto a file. In my case I loop over many variables, so the file in
sdfwrite is temp.nc, then I use ncks to append to the actual output
file I want. I tried to add som script below that may work for you.

On Thu, Sep 17, 2009 at 3:17 AM, Farshid Daryabor
<fdaryabor at googlemail.com> wrote:
> Hi all
> I could use 'sdfwrite', now I want to input 2 variables?  'u' and 'v' in one
> netcdf file.?  I write a script for execute , after 'set sdfwrite
> /hom2/../VAR.nc' when I type 'sdfwrite' command which is 'sdfwrite uwind
> vwind.2' for writing 2 variables?  in?  netcdf file, it only gives me one of
> them not both. Please guide me.
>
>
> 'open /home2/fdaryabor/Documents/U.ctl'
> 'open /home2/fdaryabor/Documents/V.ctl'
> 'set lon 0 360'
> 'set lat 180 359'
> 'set lev 0 0'
> 'set t 1 last'
> 'set e 1 last'
> 'define uwind=u'
> 'define vwind=v.2'
> *'set sdfwrite /home2/fdaryabor/Documents/VAR.nc'

'set sdfwrite temp.nc'

> *'sdfwrite uwind vwind.2'

'sdfwrite uwind'
'!cp temp.nc /home2/fdaryabor/Documents/VAR.nc'
'sdfwrite vwind'
'ncks -A -h temp.nc /home2/fdaryabor/Documents/VAR.nc'


If there's any looping involved, then the !cp will over write, so only
do that on the first iteration of the loop to initialize the file, and
append all the rest.  -A does the append, and -h  prevents a history
line in the netcdf metadata. I was looping over many vars, and this
history was getting too big.

Hope this helps and have a great weekend!!

Mike

>
> Best Regards
> F.Daryabor
>
> On Wed, Sep 16, 2009 at 12:55 PM, Farshid Daryabor
> <fdaryabor at googlemail.com> wrote:
>>
>> Hi Eric Altshuler
>> Thanks so much for your guide. I try download grads 2.0.a3.
>> Best Regards
>> F.Daryabor
>>
>> On Tue, Sep 15, 2009 at 11:49 AM, Eric Altshuler <ela at cola.iges.org>
>> wrote:
>>>
>>> Hello Farshid,
>>>
>>> sdfwrite is not a script. It's a built-in command, and you need grads
>>> 2.0.a3 or higher to use it. You mentioned that you use the grads executable
>>> 'gradsc'. This means you are using an old version of grads. Beginning with
>>> grads 2.0, the 'gradsc' executable does not exist anymore. There are only
>>> two grads executables, 'grads' and 'gradsdap'. Get the latest version of
>>> grads; the sdfwrite command will be available.
>>>
>>> Best regards,
>>>
>>> Eric L. Altshuler
>>> Assistant Research Scientist
>>> Center for Ocean-Land-Atmosphere Studies
>>> 4041 Powder Mill Road, Suite 302
>>> Calverton, MD 20705-3106
>>> USA
>>>
>>> E-mail: ela at cola.iges.org
>>> Phone: (301) 902-1257
>>> Fax: (301) 595-9793
>>>
>>> ----- Original Message -----
>>> From: "Farshid Daryabor" <fdaryabor at GOOGLEMAIL.COM>
>>> To: GRADSUSR at LIST.CINECA.IT
>>> Sent: Tuesday, September 15, 2009 5:19:37 AM GMT -05:00 US/Canada Eastern
>>> Subject: Re: command in GrADS 2.0.a5.oga.5
>>>
>>> Hi
>>> I try for downloading 'sdfwrite' script from "
>>> http://www.iges.org/grads/gadoc/library.html " but can't find it, because
>>> when I open 'my_data.ctl' in './gradsc' I face to following massage:
>>>
>>> ga-> open /home/Arya/fDaryabor/Roms_tools/Run/binary2netcdf.ctl
>>> Scanning description file:
>>> /home/Arya/fDaryabor/Roms_tools/Run/binary2netcdf.ctl
>>> Data file /home/Arya/fDaryabor/Roms_tools/Run/emp.dat is open as file 1
>>> LON set to 0 360
>>> LAT set to 180 359
>>> LEV set to 0 0
>>> Time values set: 1960:1:16:5 1960:1:16:5
>>> ga-> set lon 98 120
>>> LON set to 98 120
>>> ga-> set lat -10 20
>>> LAT set to -10 20
>>> ga-> set t 05z16jan1960 1mo
>>> Time values set: 1960:5:16:5 1960:1:16:5
>>> ga-> set sdfwrite /home/Arya/Desktop/EMP.nc
>>> SET error: Invalid operand
>>> Operand = sdfwrite /home/arya/desktop/ emp.nc
>>> I think must download "sdfwrite" script, please you help me, and give me
>>> straight address for find it.
>>> Best Regards
>>> F.Daryabor
>>>
>>>
>>>
>>> On Tue, Sep 15, 2009 at 4:03 PM, ????????? < rust123 at yahoo.cn > wrote:
>>>
>>>
>>>
>>>
>>>
>>> hello,everyone
>>> what are the shortcut keys of the copy and paste command in GrADS
>>> 2.0.a5.oga.5,thank you in advance.the shfit+insert could not be used in the
>>> windows xp.
>>>
>>>
>>>
>>>
>>> ???????????? hersala < hersala at GMAIL.COM >
>>> ???????????? GRADSUSR at LIST.CINECA.IT
>>> ???????????? 2009/9/15(??????), ????? ???12:32:44
>>> ????????? Re: GS files in GrADS 2.0.a5.oga.5
>>>
>>> Hi Hyacinth:
>>> When I use my own scripts or from another person, I save them in the same
>>> folder from where the data is read by GrADS, that is win32 folder.
>>> I hope this help you.
>>> Bye,
>>> Hern???n
>>>
>>>
>>> 2009/9/13 Hyacinth Cyprain Nnamchi < hc.nnamchi at lasg.iap.ac.cn >
>>>
>>>
>>> Dear Colleagues,
>>>
>>> I am using GrADS 2.0.a5.oga.5 from the Opengrads download page (
>>> http://sourceforge.net/projects/opengrads/files/ ) on MS Windows.I notice
>>> that it does not recognise the in-built .gs files like cbar.gs , cbarn.gs
>>> etc, although I have confirmed that they are in the "scripts" file.
>>>
>>> Does anyone know what could be wrong, where should I place the .gs files?
>>>
>>>
>>> Thanks,
>>> hyacinth
>>>
>>>
>>>
>>>
>>> --
>>>
>>> Hyacinth C. Nnamchi
>>> TWAS-CAS Fellow
>>> State Key Laboratory of Numerical Modeling for
>>> Atmospheric Sciences and Geophysical Fluid Dynamics (LASG)
>>> Institute of Atmospheric Physics (IAP)
>>> Chinese Academy of Sciences (CAS)
>>> P.O.Box 9804, Beijing 100029, China
>>> Tel: +86-13488719702
>>> Fax: +86-10-82995172
>>> E-mail:hc.nnamchi at lasg.iap.ac.cn
>>>
>>>
>>>
>>> ???????????????????? ????????????????????????????? ??????
>>
>
>


From minjarez at ATMO.ARIZONA.EDU  Fri Sep 18 14:58:24 2009
From: minjarez at ATMO.ARIZONA.EDU (Carlos Minjarez)
Date: Fri, 18 Sep 2009 12:58:24 -0600
Subject: About sdfwrite
In-Reply-To: <9b8832d50909161926s1e668cbcy49cc2dbb7008d8af@mail.gmail.com>
Message-ID: <FRI.18.SEP.2009.125824.0600.>

Dear users, I am wondering if somebody of you can provide me the
regrid2.gs function

Thanks a lot

Carlos Minjarez
PhD. Student Atmospheric sciences Department
University of Arizona


From eliavs at GMAIL.COM  Mon Sep 21 08:17:16 2009
From: eliavs at GMAIL.COM (eliav schmulewitz)
Date: Mon, 21 Sep 2009 15:17:16 +0300
Subject: open gifsicle from grads
Message-ID: <MON.21.SEP.2009.151716.0300.>

hi everyone
i have  a script that runs over a year and for each day builds a synoptic
map with slp ang gph at 500
the maps are saved as gif, after i finish i open gifsicle and use it to make
an animation
i would like to add to the script another part witch from grads runs the
gifsicle is that possible?
eliav
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From claudiomet at GMAIL.COM  Mon Sep 21 08:25:36 2009
From: claudiomet at GMAIL.COM (claudio cortes)
Date: Mon, 21 Sep 2009 08:25:36 -0400
Subject: open gifsicle from grads
In-Reply-To: <128fb9ed0909210517tc85e91ag885de3d707312e9b@mail.gmail.com>
Message-ID: <MON.21.SEP.2009.082536.0400.>

Eliav

For run Linux (or Windows or Mac or Unix) shell commands from the
GrADS command line or script just put the exclamation symbol at
beginning of the line. For exmaple:

'open file.ctl'
'set t 5'
'set lev 3'
'd hgt'
'!linux_command -option1 -option2 -option3'
'grads command1'
'grads command2'
'etc'


2009/9/21 eliav schmulewitz <eliavs at gmail.com>:
> hi everyone
> i have  a script that runs over a year and for each day builds a synoptic
> map with slp ang gph at 500
> the maps are saved as gif, after i finish i open gifsicle and use it to make
> an animation
> i would like to add to the script another part witch from grads runs the
> gifsicle is that possible?
> eliav
>



--
Claudio Cortes
+56 (2) 2994121

Meteorologo
Laboratorio de Meteorologia y Calidad de Aire
Centro Nacional del Medio Ambiente (CENMA)
--------------------------------------------------------------------------------------

Claudio Cortes
+56 (2) 2994121

Meteorologist
Meteorology and Air Quality Labs
National Enviroment Center, Chile (CENMA)


From koletsis at METEO.NOA.GR  Mon Sep 21 10:26:01 2009
From: koletsis at METEO.NOA.GR (Ioannis Koletsis)
Date: Mon, 21 Sep 2009 17:26:01 +0300
Subject: Skipping barbs in GRADS
Message-ID: <MON.21.SEP.2009.172601.0300.>

Dear all,

I plot wind barbs using the maskout function. Each color corresponds to a different wind intensity (barbs), for example:

'set ccolor 9'
'd maskout(u*2,mag(u,v)-0;maskout(v*2,1.25-mag(u,v))'
'set ccolor 14'
'd maskout(u*2,mag(u,v)-1.26;maskout(v*2,3.75-mag(u,v))'
'set ccolor 4'
'd maskout(u*2,mag(u,v)-3.76;maskout(v*2,6.25-mag(u,v))'
e.t.c.

I would like to skip barbs in both x and y direction
 
I tried to use the skip function,  

'd skip(maskout(u*2,mag(u,v)-3.76;maskout(v*2,6.25-mag(u,v)),2,2)

but it didn't work!

Would somebody please help me? 
Any idea?

Thanks in advance

John


-----------------------------------------------------------              
Ioannis Koletsis
National Observatory of Athens
Institute for Environmental Research
Lofos Koufou
15236-Penteli
Athens-Greece
Tel: (+30) 210 8109140
e-mail: koletsis at meteo.noa.gr
           ikoletsis at gmail.com
-----------------------------------------------------------
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From leandro at SMM.MIL.BR  Mon Sep 21 10:53:15 2009
From: leandro at SMM.MIL.BR (1T(T) Leandro Machado)
Date: Mon, 21 Sep 2009 15:53:15 +0100
Subject: Skipping barbs in GRADS
In-Reply-To: <7680725058204CD4AE71983D116C859C@Ioannis>
Message-ID: <MON.21.SEP.2009.155315.0100.>

Dear Jhon,

You is using differents mask values for u and v components.

Try this way:
'set gxout barb'
'set clevs lev(1) lev(2) ... lev(n)'
'set ccols color(1) color(2 ) ... color(n) color(n+1)'
'd skip(u,2,2);skip(v,2,2);mag(u,v)'

Good luck!

Leandro

On Mon, 21 Sep 2009 17:26:01 +0300, Ioannis Koletsis wrote
> Dear all,
>
> I plot wind barbs using the maskout function. Each color corresponds to a different wind intensity (barbs), for example:
>
> 'set ccolor 9'
> 'd maskout(u*2,mag(u,v)-0;maskout(v*2,1.25-mag(u,v))'
>
> 'set ccolor 14'
> 'd maskout(u*2,mag(u,v)-1.26;maskout(v*2,3.75-mag(u,v))'
>
> 'set ccolor 4'
> 'd maskout(u*2,mag(u,v)-3.76;maskout(v*2,6.25-mag(u,v))'
> e.t.c.
>
> I would like to skip barbs in both x and y direction
>
> I tried to use the skip function,
>
> 'd skip(maskout(u*2,mag(u,v)-3.76;maskout(v*2,6.25-mag(u,v)),2,2)
>
> but it didn't work!
>
> Would somebody please help me?
> Any idea?
>
> Thanks in advance
>
> John
>
>
> -----------------------------------------------------------
> Ioannis Koletsis
> National Observatory of Athens
> Institute for Environmental Research
> Lofos Koufou
> 15236-Penteli
> Athens-Greece
> Tel: (+30) 210 8109140
> e-mail: koletsis at meteo.noa.gr
>            ikoletsis at gmail.com
> -----------------------------------------------------------

1T(T) Leandro Machado
Ajudante da Se??o de Modelagem Atmosf?rica
Centro de Hidrografia da Marinha
R Bar?o de Jaceguai, s/n
Ponta da Arma??o - Niter?i
CEP 24.048-900
tel: (21) 2189-3282/3283 fax: (21) 2189-3295

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From eliavs at GMAIL.COM  Mon Sep 21 11:16:14 2009
From: eliavs at GMAIL.COM (eliav schmulewitz)
Date: Mon, 21 Sep 2009 18:16:14 +0300
Subject: open gifsicle from grads
In-Reply-To: <5f3ba4e00909210525p86faaacgeff652ea7f4f4182@mail.gmail.com>
Message-ID: <MON.21.SEP.2009.181614.0300.>

Claudio
thank you!!
Eliav


On Mon, Sep 21, 2009 at 3:25 PM, claudio cortes <claudiomet at gmail.com>wrote:

> Eliav
>
> For run Linux (or Windows or Mac or Unix) shell commands from the
> GrADS command line or script just put the exclamation symbol at
> beginning of the line. For exmaple:
>
> 'open file.ctl'
> 'set t 5'
> 'set lev 3'
> 'd hgt'
> '!linux_command -option1 -option2 -option3'
> 'grads command1'
> 'grads command2'
> 'etc'
>
>
> 2009/9/21 eliav schmulewitz <eliavs at gmail.com>:
> > hi everyone
> > i have  a script that runs over a year and for each day builds a synoptic
> > map with slp ang gph at 500
> > the maps are saved as gif, after i finish i open gifsicle and use it to
> make
> > an animation
> > i would like to add to the script another part witch from grads runs the
> > gifsicle is that possible?
> > eliav
> >
>
>
>
> --
> Claudio Cortes
> +56 (2) 2994121
>
> Meteorologo
> Laboratorio de Meteorologia y Calidad de Aire
> Centro Nacional del Medio Ambiente (CENMA)
>
> --------------------------------------------------------------------------------------
>
> Claudio Cortes
> +56 (2) 2994121
>
> Meteorologist
> Meteorology and Air Quality Labs
> National Enviroment Center, Chile (CENMA)
>
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From hiren_dave85 at YAHOO.COM  Tue Sep 22 03:28:38 2009
From: hiren_dave85 at YAHOO.COM (hiren dave)
Date: Tue, 22 Sep 2009 00:28:38 -0700
Subject: controling Looping
Message-ID: <TUE.22.SEP.2009.002838.0700.>

Dear,
? ? ?? Friends

I have netCDf file containing the daily average value of a parameter. I am using following script to view the plots of 5 to 10 days in looping. But the speed of looping is so fast and it is difficult to see any pattern in the output. I want to control the speed of this looping. Is there any way?
?
'set t 1 20'
'd slp'


Hiren Dave
JRF
Dept. of Physics, Electronics & Space Science
University School of Sciences
Gujarat University
Navrangpura
Ahmedabad-09
Gujarat-India
M:- 9426976862
? 



      Try the new Yahoo! India Homepage. Click here. http://in.yahoo.com/trynew
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From eliavs at GMAIL.COM  Tue Sep 22 04:31:55 2009
From: eliavs at GMAIL.COM (eliav schmulewitz)
Date: Tue, 22 Sep 2009 11:31:55 +0300
Subject: controling Looping
In-Reply-To: <365417.85932.qm@web30407.mail.mud.yahoo.com>
Message-ID: <TUE.22.SEP.2009.113155.0300.>

Hi Hiren
why dont you save them while you loop
Eliav

On Tue, Sep 22, 2009 at 10:28 AM, hiren dave <hiren_dave85 at yahoo.com> wrote:

> Dear,
>        Friends
>
> I have netCDf file containing the daily average value of a parameter. I am
> using following script to view the plots of 5 to 10 days in looping. But the
> speed of looping is so fast and it is difficult to see any pattern in the
> output. I want to control the speed of this looping. Is there any way?
>
> 'set t 1 20'
> 'd slp'
>
>
> Hiren Dave
> JRF
> Dept. of Physics, Electronics & Space Science
> University School of Sciences
> Gujarat University
> Navrangpura
> Ahmedabad-09
> Gujarat-India
> M:- 9426976862
>
>
> ------------------------------
> From cricket scores to your friends. Try the Yahoo! India Homepage!<http://in.rd.yahoo.com/tagline_metro_4/*http://in.yahoo.com/trynew>
>
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From kwmski7 at SNU.AC.KR  Tue Sep 22 04:28:20 2009
From: kwmski7 at SNU.AC.KR (Kim WonMoo)
Date: Tue, 22 Sep 2009 17:28:20 +0900
Subject: How can I change the position of the contour labels?
Message-ID: <TUE.22.SEP.2009.172820.0900.>

Dear friends,

I would like to change the 'position' of the contour labels, for they block the region I am interested in.

I know that 'clopts' can change the sizes of the labels, 'clskip' the spacing, and 'cint' the intervals,

but they all block the very region I need. I think the position is a kind of reference position for labeling (It's on the center of the map).

Are there any way to move the reference position, not changing the map domain (lon, lat range)?

Thanks in advance,

Kim, WonMoo
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From zjuyanlibin at 163.COM  Tue Sep 22 04:40:52 2009
From: zjuyanlibin at 163.COM (=?utf-8?B?WWFuIExpYmlu?=)
Date: Tue, 22 Sep 2009 16:40:52 +0800
Subject: =?utf-8?B?UmU6IGNvbnRyb2xpbmcgTG9vcGluZw==?=
Message-ID: <TUE.22.SEP.2009.164052.0800.>

it=1
while(it<=20)
set t 'it'
d slp
pull down
c
endwhile


2009-09-22 



Yan Libin 



???? hiren dave 
????? 2009-09-22  16:29:43 
???? GRADSUSR 
??? 
??? controling Looping 
 
Dear,
       Friends

I have netCDf file containing the daily average value of a parameter. I am using following script to view the plots of 5 to 10 days in looping. But the speed of looping is so fast and it is difficult to see any pattern in the output. I want to control the speed of this looping. Is there any way?
 
'set t 1 20'
'd slp'


Hiren Dave
JRF
Dept. of Physics, Electronics & Space Science
University School of Sciences
Gujarat University
Navrangpura
Ahmedabad-09
Gujarat-India
M:- 9426976862
  




From cricket scores to your friends. Try the Yahoo! India Homepage! 
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From kwmski7 at SNU.AC.KR  Tue Sep 22 04:43:28 2009
From: kwmski7 at SNU.AC.KR (Kim WonMoo)
Date: Tue, 22 Sep 2009 17:43:28 +0900
Subject: controling Looping
In-Reply-To: <200909221640521095842@163.com>
Message-ID: <TUE.22.SEP.2009.174328.0900.>

Or, just insert dummy loop inside,

it=1
while (it<=20)
 'set t 'it
 'd slp'
  idummy=1
 while (idummy<=100000)
   idummy=idummy+1
  endwhile
  it=it+1
endwhile

to avoid keep pressing key-board.

Good luck,

Kim,WonMoo


From: Yan Libin 
Sent: Tuesday, September 22, 2009 5:40 PM
To: GRADSUSR at LIST.CINECA.IT 
Subject: Re: controling Looping


it=1
while(it<=20)
set t 'it'
d slp
pull down
c
endwhile


2009-09-22 

--------------------------------------------------------------------------------

Yan Libin 

--------------------------------------------------------------------------------

???? hiren dave 
????? 2009-09-22  16:29:43 
???? GRADSUSR 
??? 
??? controling Looping 
      Dear,
             Friends

      I have netCDf file containing the daily average value of a parameter. I am using following script to view the plots of 5 to 10 days in looping. But the speed of looping is so fast and it is difficult to see any pattern in the output. I want to control the speed of this looping. Is there any way?
       
      'set t 1 20'
      'd slp'


      Hiren Dave
      JRF
      Dept. of Physics, Electronics & Space Science
      University School of Sciences
      Gujarat University
      Navrangpura
      Ahmedabad-09
      Gujarat-India
      M:- 9426976862
        
     


--------------------------------------------------------------------------------

From ivtoman at INET.HR  Tue Sep 22 04:58:11 2009
From: ivtoman at INET.HR (Ivan Toman)
Date: Tue, 22 Sep 2009 10:58:11 +0200
Subject: How can I change the position of the contour labels?
In-Reply-To: <90A18A8809ED4A1D9D515B902A224310@KimWonMooPC>
Message-ID: <TUE.22.SEP.2009.105811.0200.>

Hello,

I'm not familiar with controlling exact position of labels, but if you
are using GrADS prior 2.0.a6 you might want to upgrade, because new
versions have ability of drawing better looking labels that do not block
too much of area under them. Please check here:
http://www.iges.org/grads/gadoc/gradcomdsetclab.html


Ivan



Kim WonMoo wrote:
> Dear friends,
> I would like to change the 'position' of the contour labels, for they
> block the region I am interested in.
> I know that 'clopts' can change the sizes of the labels, 'clskip' the
> spacing, and 'cint' the intervals,
> but they all block the very region I need. I think the position is a
> kind of reference position for labeling (It's on the center of the map).
> Are there any way to move the reference position, not changing the map
> domain (lon, lat range)?
> Thanks in advance,
> Kim, WonMoo


From zjuyanlibin at 163.COM  Tue Sep 22 05:02:26 2009
From: zjuyanlibin at 163.COM (=?utf-8?B?WWFuIExpYmlu?=)
Date: Tue, 22 Sep 2009 17:02:26 +0800
Subject: =?utf-8?B?UmU6IFJlOiBjb250cm9saW5nIExvb3Bpbmc=?=
Message-ID: <TUE.22.SEP.2009.170226.0800.>

idummy??? what is this variable?


2009-09-22 



Yan Libin 



???? Kim WonMoo 
????? 2009-09-22  16:48:49 
???? GRADSUSR 
??? 
??? Re: controling Looping 
 
Or, just insert dummy loop inside,

it=1
while (it<=20)
 'set t 'it
 'd slp'
  idummy=1
 while (idummy<=100000)
   idummy=idummy+1
  endwhile
  it=it+1
endwhile

to avoid keep pressing key-board.

Good luck,

Kim,WonMoo


From: Yan Libin 
Sent: Tuesday, September 22, 2009 5:40 PM
To: GRADSUSR at LIST.CINECA.IT 
Subject: Re: controling Looping


it=1
while(it<=20)
set t 'it'
d slp
pull down
c
endwhile


2009-09-22 



Yan Libin 



???? hiren dave 
????? 2009-09-22  16:29:43 
???? GRADSUSR 
??? 
??? controling Looping 
Dear,
       Friends

I have netCDf file containing the daily average value of a parameter. I am using following script to view the plots of 5 to 10 days in looping. But the speed of looping is so fast and it is difficult to see any pattern in the output. I want to control the speed of this looping. Is there any way?
 
'set t 1 20'
'd slp'


Hiren Dave
JRF
Dept. of Physics, Electronics & Space Science
University School of Sciences
Gujarat University
Navrangpura
Ahmedabad-09
Gujarat-India
M:- 9426976862
  




From cricket scores to your friends. Try the Yahoo! India Homepage! 
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From sushantpuranik at GMAIL.COM  Tue Sep 22 08:18:00 2009
From: sushantpuranik at GMAIL.COM (sushant puranik)
Date: Tue, 22 Sep 2009 17:48:00 +0530
Subject: How to make composite plots
Message-ID: <TUE.22.SEP.2009.174800.0530.>

Hello sir
I wish to make composite plot for 20 year period for each month (monthly
mean composite) and also want to make composite for season (seasonal
composite)(Dec-March).
Can you please give me help in this regard.


Thanking you

Sushant
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From zjuyanlibin at 163.COM  Tue Sep 22 08:20:45 2009
From: zjuyanlibin at 163.COM (=?utf-8?B?WWFuIExpYmlu?=)
Date: Tue, 22 Sep 2009 20:20:45 +0800
Subject: =?utf-8?B?UmU6IEhvdyB0byBtYWtlIGNvbXBvc2l0ZSBwbG90cw==?=
Message-ID: <TUE.22.SEP.2009.202045.0800.>

d ave(var,t=1,t=360,12)

d (ave(var,t=1,t=360,12)+ave(var,t=2,t=360,12)+ave(var,t=3,t=360,12))/3


2009-09-22 



Yan Libin 



???? sushant puranik 
????? 2009-09-22  20:18:04 
???? GRADSUSR 
??? 
??? How to make composite plots 
 
Hello sir 
I wish to make composite plot for 20 year period for each month (monthly mean composite) and also want to make composite for season (seasonal composite)(Dec-March).
Can you please give me help in this regard.


Thanking you

Sushant
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From jma at COLA.IGES.ORG  Tue Sep 22 08:21:12 2009
From: jma at COLA.IGES.ORG (Jennifer Adams)
Date: Tue, 22 Sep 2009 08:21:12 -0400
Subject: How can I change the position of the contour labels?
In-Reply-To: <90A18A8809ED4A1D9D515B902A224310@KimWonMooPC>
Message-ID: <TUE.22.SEP.2009.082112.0400.>

Try using 'set clskip' to increase the spacing between labels.  --
Jennifer

On Sep 22, 2009, at 4:28 AM, Kim WonMoo wrote:

> Dear friends,
>
> I would like to change the 'position' of the contour labels, for
> they block the region I am interested in.
>
> I know that 'clopts' can change the sizes of the labels, 'clskip'
> the spacing, and 'cint' the intervals,
>
> but they all block the very region I need. I think the position is a
> kind of reference position for labeling (It's on the center of the
> map).
>
> Are there any way to move the reference position, not changing the
> map domain (lon, lat range)?
>
> Thanks in advance,
>
> Kim, WonMoo

--
Jennifer M. Adams
IGES/COLA
4041 Powder Mill Road, Suite 302
Calverton, MD 20705
jma at cola.iges.org



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From jma at COLA.IGES.ORG  Tue Sep 22 08:23:18 2009
From: jma at COLA.IGES.ORG (Jennifer Adams)
Date: Tue, 22 Sep 2009 08:23:18 -0400
Subject: controling Looping
In-Reply-To: <365417.85932.qm@web30407.mail.mud.yahoo.com>
Message-ID: <TUE.22.SEP.2009.082318.0400.>

You can set up a 'while' loop and put a 'q pos' command inside, then
mouse clicks will control the looping. Also, please take a look at ftp://grads.iges.org/grads/scripts/xanim.gs
  which is a script to control animations.
--Jennifer


On Sep 22, 2009, at 3:28 AM, hiren dave wrote:

> Dear,
>        Friends
>
> I have netCDf file containing the daily average value of a
> parameter. I am using following script to view the plots of 5 to 10
> days in looping. But the speed of looping is so fast and it is
> difficult to see any pattern in the output. I want to control the
> speed of this looping. Is there any way?
>
> 'set t 1 20'
> 'd slp'
>
>
> Hiren Dave
> JRF
> Dept. of Physics, Electronics & Space Science
> University School of Sciences
> Gujarat University
> Navrangpura
> Ahmedabad-09
> Gujarat-India
> M:- 9426976862
>
>
> From cricket scores to your friends. Try the Yahoo! India Homepage!

--
Jennifer M. Adams
IGES/COLA
4041 Powder Mill Road, Suite 302
Calverton, MD 20705
jma at cola.iges.org



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From arlindo.dasilva at GMAIL.COM  Tue Sep 22 10:00:10 2009
From: arlindo.dasilva at GMAIL.COM (Arlindo da Silva)
Date: Tue, 22 Sep 2009 09:00:10 -0500
Subject: GS files in GrADS 2.0.a5.oga.5
In-Reply-To: <17945030.256101252856588130.JavaMail.coremail@mail3.iap.ac.cn>
Message-ID: <TUE.22.SEP.2009.090010.0500.>

2009/9/13 Hyacinth Cyprain Nnamchi <hc.nnamchi at lasg.iap.ac.cn>

> Dear Colleagues,
>
> I am using GrADS 2.0.a5.oga.5 from the Opengrads download page (
> http://sourceforge.net/projects/opengrads/files/) on MS Windows.I notice
> that it does not recognise the in-built .gs files like cbar.gs, cbarn.gsetc, although I have confirmed that they are in the "scripts" file.
>
> Does anyone know what could be wrong, where should I place the .gs files?
>

It is supposed to find these out of the box, no need to place files
anywhere. How did you install it? Did you do a standard install from the
superpack...exe? How are you starting it? From the [Start] menu? Which
windows are you using? XP, Vista, Windows 7?
Are you setting any environment variable such as GADDIR or GASCRP? (You
should not set any environment variable if you did a "bundle install".)

--
Arlindo da Silva
dasilva at alum.mit.edu
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From arlindo.dasilva at GMAIL.COM  Tue Sep 22 10:13:00 2009
From: arlindo.dasilva at GMAIL.COM (Arlindo da Silva)
Date: Tue, 22 Sep 2009 09:13:00 -0500
Subject: GrADS bad speed performances
In-Reply-To: <4A9EBEA5.6010807@inet.hr>
Message-ID: <TUE.22.SEP.2009.091300.0500.>

On Wed, Sep 2, 2009 at 1:51 PM, Ivan Toman <ivtoman at inet.hr> wrote:

> Hello. I have very strange issue and help is greatly appreciated.
>
> I run WRF-NMM 36-12-4km nesting and after model finishes I forward
> output grib1 files to grads (1.9) from all three domains in successive
> order. First, 36km domain is processed in GrADS, when it finish 12km
> domain comes to work and when it finish, 4km go into GrADS at the end.
>
> My problem is that GrADS has good performance only on 12km domain, on
> other domains it is very and extremely slow. These are times for
> creating map graphics from these domains:
>
> 36km - 40 seconds
> 12km - 6 seconds
> 4km - 105 seconds
>
> It is very clear something very strange is going on. Why last domain
> gribs files needs almost two minutes to postprocess in GrADS, when
> intermediate domain gribs takes only 6 seconds to complete the same job?
>

It has been my experience that you need to run these jobs at least 20 times
each and average the execution times in order to get stable statistics.
Also, process more than 1 time step at a time to factor out the time it
takes to start grads. An execution time of 6s is too short not to get
entagled with the usual latency of starting grads.

          Arlindo




> Yes, for all three domains is executed completely same .gs script,
> domain sizes are almost the same (in number of points), and GrADS don't
> output any error or similar unusual messages on any domain. There are no
> other CPU jobs that could slow down processing. GrADS use one CPU core
> at 100% all of time during this hanging.
>
> These times are for only 6 output gribs (still testing), I need to
> extend forecast now to 60 hours, so there will be 10 times more data
> than now is, if now GrADS process for 105 seconds then it will work 17.5
> minutes to draw all needed maps from 4km domain?? This will become a
> serious concern then.
>
> Please, can anybody help me to resolve this problem?
>
> Thanks
>



--
Arlindo da Silva
dasilva at alum.mit.edu
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From ivtoman at INET.HR  Tue Sep 22 10:38:04 2009
From: ivtoman at INET.HR (Ivan Toman)
Date: Tue, 22 Sep 2009 16:38:04 +0200
Subject: GrADS bad speed performances
In-Reply-To: <77fcd6b20909220713n30edf100i583af2986fe54795@mail.gmail.com>
Message-ID: <TUE.22.SEP.2009.163804.0200.>

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From jma at COLA.IGES.ORG  Tue Sep 22 11:07:34 2009
From: jma at COLA.IGES.ORG (Jennifer Adams)
Date: Tue, 22 Sep 2009 11:07:34 -0400
Subject: Variable define and/or aave oddity
In-Reply-To: <11DC8B53-B726-4C48-8B6B-226208E9A56A@nasa.gov>
Message-ID: <TUE.22.SEP.2009.110734.0400.>

Hi, Colleen --
I am unable to reproduce this problem. The result of a global aave()
on a data variable and a defined variable are the same no matter what
I try. One thing you didn't show was the output from 'q dims' -- I
wonder if you had a funky dimension environment set. In any event, if
this problem can be reliably reproduced with your file
sfcdn_new.binary, please send it to me (not to gradsusr).
--Jennifer


On Sep 14, 2009, at 10:57 AM, Colleen Mikovitz wrote:

> I am working though a script to do simple global maps of variables
> with annotations of the global average.  But I noticed that when I use
> the define command,  aave returns a different value on that newly
> defined variable than on the original variable.  I just installed the
> newest release to see if that would correct it, but I get the same
> thing.
>
> Could someone look at the following to see if I am doing anything odd
> or if this is a known/unknown problem?
>
> Thanks,
> Colleen
>
> *********************
> ga-> q config
> Config: v2.0.a7.1 little-endian readline printim grib2 netcdf hdf4-sds
> hdf5 geotiff
> Grid Analysis and Display System (GrADS) Version 2.0.a7.1
> Copyright (c) 1988-2009 by Brian Doty and the
> Institute for Global Environment and Society (IGES)
> This program is distributed WITHOUT ANY WARRANTY
> See file COPYRIGHT for more information.
>
> Built Fri Aug  7 18:15:20 EDT 2009 for i386-apple-darwin9.7.0
>
> ga-> q ctlinfo
> dset /Users/colleen/lib/sfcdn_new.binary
> title GLW
> undef -999
> xdef 360 linear 0.5 1
> ydef 180 linear -89.5 1
> zdef 1 linear 1000 1
> tdef 1 linear 00Z01JAN2002 180mn
> vars 1
> prop  1  0  check var
> endvars
>
>
> ga-> d prop
> Contouring: 100 to 450 interval 50
> ga-> define newvar=prop
> Define memory allocation size = 527072 bytes
> ga-> d aave(prop,g)
> Result value = 335.076
> ga-> d aave(newvar,g)
> Result value = 324.465
> ga-> d prop-newvar
> Constant field.  Value = 0

--
Jennifer M. Adams
IGES/COLA
4041 Powder Mill Road, Suite 302
Calverton, MD 20705
jma at cola.iges.org



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From ela at COLA.IGES.ORG  Tue Sep 22 13:33:00 2009
From: ela at COLA.IGES.ORG (Eric Altshuler)
Date: Tue, 22 Sep 2009 13:33:00 -0400
Subject: controling Looping
In-Reply-To: <1158542436.82421253640384889.JavaMail.root@mail.iges.org>
Message-ID: <TUE.22.SEP.2009.133300.0400.>

Kim WonMoo's method sets up a script loop that does nothing except use CPU cycles to cause a delay between frames in the animation. This is a brute force method that may result in drastically different delay lengths depending on machine speed and CPU usage by other processes at any given time. A better way to introduce a delay between frames is to use double buffer mode and the Unix 'sleep' command, e.g.

'set dbuff on'
it=1
while (it<=20)
'set t 'it
'd slp'
'swap'
'!sleep 1'
it=it+1
endwhile

The only problem here is that the minimum sleep time is 1 second, which is rather long for an animation. On some Linux machines there is a 'usleep' command that allows the user to specify the delay time in microseconds, e.g.

'!usleep 500000'

to sleep for 0.5 second. If your system has the usleep command, use it instead of sleep so you can specify a delay of less than 1 second. Using double buffer mode along with the sleep or usleep command produces a nice animation without having to use the mouse or keyboard to advance the frames.

Best regards,

Eric L. Altshuler
Assistant Research Scientist
Center for Ocean-Land-Atmosphere Studies
4041 Powder Mill Road, Suite 302
Calverton, MD 20705-3106
USA

E-mail: ela at cola.iges.org
Phone: (301) 902-1257
Fax: (301) 595-9793

----- Original Message -----
From: "Yan Libin" <zjuyanlibin at 163.COM>
To: GRADSUSR at LIST.CINECA.IT
Sent: Tuesday, September 22, 2009 5:02:26 AM GMT -05:00 US/Canada Eastern
Subject: Re: Re: controling Looping

???
idummy??? what is this variable?


2009-09-22

Yan Libin

???????????? Kim WonMoo
??????????????? 2009-09-22 16:48:49
???????????? GRADSUSR
? ???????
????????? Re: controling Looping


Or, just insert dummy loop inside,

it=1
while (it<=20)
'set t 'it
'd slp'
idummy=1
while (idummy<=100000)
idummy=idummy+1
endwhile
it=it+1
endwhile

to avoid keep pressing key-board.

Good luck,

Kim,WonMoo




From: Yan Libin
Sent: Tuesday, September 22, 2009 5:40 PM
To: GRADSUSR at LIST.CINECA.IT
Subject: Re: controling Looping


it=1
while(it<=20)
set t 'it'
d slp
pull down
c
endwhile


2009-09-22

Yan Libin

???????????? hiren dave
??????????????? 2009-09-22 16:29:43
???????????? GRADSUSR
? ???????
????????? controling Looping


        Dear,
Friends

I have netCDf file containing the daily average value of a parameter. I am using following script to view the plots of 5 to 10 days in looping. But the speed of looping is so fast and it is difficult to see any pattern in the output. I want to control the speed of this looping. Is there any way?

'set t 1 20'
'd slp'


Hiren Dave
JRF
Dept. of Physics, Electronics & Space Science
University School of Sciences
Gujarat University
Navrangpura
Ahmedabad-09
Gujarat-India
M:- 9426976862




From eliavs at GMAIL.COM  Tue Sep 22 13:51:03 2009
From: eliavs at GMAIL.COM (eliav schmulewitz)
Date: Tue, 22 Sep 2009 20:51:03 +0300
Subject: controling Looping
In-Reply-To: <1099728238.82471253640779993.JavaMail.root@mail.iges.org>
Message-ID: <TUE.22.SEP.2009.205103.0300.>

Hi
another thing you can do is use 'gifsicle', a very useful program that can
make animation from gif files
though this can make the script very long
if you want i can give you an example of a script
eliav

On Tue, Sep 22, 2009 at 8:33 PM, Eric Altshuler <ela at cola.iges.org> wrote:

> Kim WonMoo's method sets up a script loop that does nothing except use CPU
> cycles to cause a delay between frames in the animation. This is a brute
> force method that may result in drastically different delay lengths
> depending on machine speed and CPU usage by other processes at any given
> time. A better way to introduce a delay between frames is to use double
> buffer mode and the Unix 'sleep' command, e.g.
>
> 'set dbuff on'
> it=1
> while (it<=20)
> 'set t 'it
> 'd slp'
> 'swap'
> '!sleep 1'
> it=it+1
> endwhile
>
> The only problem here is that the minimum sleep time is 1 second, which is
> rather long for an animation. On some Linux machines there is a 'usleep'
> command that allows the user to specify the delay time in microseconds, e.g.
>
> '!usleep 500000'
>
> to sleep for 0.5 second. If your system has the usleep command, use it
> instead of sleep so you can specify a delay of less than 1 second. Using
> double buffer mode along with the sleep or usleep command produces a nice
> animation without having to use the mouse or keyboard to advance the frames.
>
> Best regards,
>
> Eric L. Altshuler
> Assistant Research Scientist
> Center for Ocean-Land-Atmosphere Studies
> 4041 Powder Mill Road, Suite 302
> Calverton, MD 20705-3106
> USA
>
> E-mail: ela at cola.iges.org
> Phone: (301) 902-1257
> Fax: (301) 595-9793
>
> ----- Original Message -----
> From: "Yan Libin" <zjuyanlibin at 163.COM>
> To: GRADSUSR at LIST.CINECA.IT
> Sent: Tuesday, September 22, 2009 5:02:26 AM GMT -05:00 US/Canada Eastern
> Subject: Re: Re: controling Looping
>
> ?
> idummy??? what is this variable?
>
>
> 2009-09-22
>
> Yan Libin
>
> ???? Kim WonMoo
> ????? 2009-09-22 16:48:49
> ???? GRADSUSR
> ? ???
> ??? Re: controling Looping
>
>
> Or, just insert dummy loop inside,
>
> it=1
> while (it<=20)
> 'set t 'it
> 'd slp'
> idummy=1
> while (idummy<=100000)
> idummy=idummy+1
> endwhile
> it=it+1
> endwhile
>
> to avoid keep pressing key-board.
>
> Good luck,
>
> Kim,WonMoo
>
>
>
>
> From: Yan Libin
> Sent: Tuesday, September 22, 2009 5:40 PM
> To: GRADSUSR at LIST.CINECA.IT
> Subject: Re: controling Looping
>
>
> it=1
> while(it<=20)
> set t 'it'
> d slp
> pull down
> c
> endwhile
>
>
> 2009-09-22
>
> Yan Libin
>
> ???? hiren dave
> ????? 2009-09-22 16:29:43
> ???? GRADSUSR
> ? ???
> ??? controling Looping
>
>
>        Dear,
> Friends
>
> I have netCDf file containing the daily average value of a parameter. I am
> using following script to view the plots of 5 to 10 days in looping. But the
> speed of looping is so fast and it is difficult to see any pattern in the
> output. I want to control the speed of this looping. Is there any way?
>
> 'set t 1 20'
> 'd slp'
>
>
> Hiren Dave
> JRF
> Dept. of Physics, Electronics & Space Science
> University School of Sciences
> Gujarat University
> Navrangpura
> Ahmedabad-09
> Gujarat-India
> M:- 9426976862
>
>
>
> From cricket scores to your friends. Try the Yahoo! India Homepage!
>
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From howardb at SSEC.WISC.EDU  Tue Sep 22 14:46:49 2009
From: howardb at SSEC.WISC.EDU (Howard Berger)
Date: Tue, 22 Sep 2009 13:46:49 -0500
Subject: bufrscan help
Message-ID: <TUE.22.SEP.2009.134649.0500.>

Hello,
I'm trying to use bufrscan to eventually read a bufr file.
I placed a symbolic link to my bufr table in the directory with the data
file.
I first tried:
 bufrscan ./ layermean_bufr.20090921.18.nh

  and nothing seems to happen.

When I try:
   bufrscan -d ./ layermean_bufr.20090921.18.nh  I get the following output:

DYLD_LIBRARY_PATH=/Users/howardb/bin/Darwin/Versions/2.0.a5.oga.4/i386/gex:/Users/howardb/grads/bin/gex:
  GADDIR=/Users/howardb/grads
  GADDIR=/Users/howardb/bin/Resources/Scripts
  GAUDXT=/Users/howardb/bin/Darwin/Versions/2.0.a5.oga.4/i386/gex/udxt
  GAVERSION=2.0.a5.oga.4

I also tried:
 bufrscan -dh ./ layermean_bufr.20090921.18.nh and get:
  Low level read error on BUFR file ./

I'm using grads version 2.0.a5 on a mac 10.5

Am I doing something wrong or is my bufr file bad?
Thanks!
Howard


From aspratt2000 at YAHOO.COM  Tue Sep 22 15:36:11 2009
From: aspratt2000 at YAHOO.COM (Aaron Pratt)
Date: Tue, 22 Sep 2009 15:36:11 -0400
Subject: Reading HDF-EOS files in GrADS
In-Reply-To: <4AB91B99.5010108@ssec.wisc.edu>
Message-ID: <TUE.22.SEP.2009.153611.0400.>

Hello,

Is there a way to open HDF-EOS files in GrADS. I have tried to find
information pertaining to this online, but have so far been unable to find
anything. I would like to be able to open HDF-EOS formatted files from
MODIS, CloudSat, CALIPSO, etc. (I believe HDF-EOS is the standard format for
most of NASA's satellite data products.

Aaron Pratt,PhD
NASA/ORAU Post-Doctoral Fellow
Goddard Space Flight Center
Greenbelt, MD 20774


From zjuyanlibin at 163.COM  Tue Sep 22 20:39:30 2009
From: zjuyanlibin at 163.COM (Yan Libin)
Date: Wed, 23 Sep 2009 08:39:30 +0800
Subject: Reading HDF-EOS files in GrADS
Message-ID: <WED.23.SEP.2009.083930.0800.>

Yes, if GrADS supports HDF-EOS format files, it will be more powerful.


2009-09-23 



Yan Libin 



???? Aaron Pratt 
????? 2009-09-23  03:36:19 
???? GRADSUSR 
??? 
??? Reading HDF-EOS files in GrADS 
 
Hello,
Is there a way to open HDF-EOS files in GrADS. I have tried to find
information pertaining to this online, but have so far been unable to find
anything. I would like to be able to open HDF-EOS formatted files from
MODIS, CloudSat, CALIPSO, etc. (I believe HDF-EOS is the standard format for
most of NASA's satellite data products.
Aaron Pratt,PhD
NASA/ORAU Post-Doctoral Fellow
Goddard Space Flight Center
Greenbelt, MD 20774
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From hc.nnamchi at LASG.IAP.AC.CN  Tue Sep 22 22:53:06 2009
From: hc.nnamchi at LASG.IAP.AC.CN (Hyacinth Cyprain Nnamchi)
Date: Wed, 23 Sep 2009 10:53:06 +0800
Subject: GS files in GrADS 2.0.a5.oga.5
In-Reply-To: <77fcd6b20909220700t746f9c7fqdfd842a5982c8ba1@mail.gmail.com>
Message-ID: <WED.23.SEP.2009.105306.0800.>


Dear Arlindo,
The script file started working when I changed the environment variables: GADDIR and GASCRP. They were on "dat" and "lib" as shown on the GrADS page (http://www.iges.org/grads/downloads.html) because I uninstalled ver 1.8 before installing GrADS 2.0.a5.oga.5.

What made the script files to start working on my system (Windos XP) was changing:
 GADDIR to  C:\OpenGrADS\Contents\Resources\SupportData
 GASCRP to  C:\OpenGrADS\Contents\Resources\Scripts

Best regards,
Hyacinth
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From sachinghude at TROPMET.RES.IN  Wed Sep 23 00:31:38 2009
From: sachinghude at TROPMET.RES.IN (Sachin Ghude)
Date: Wed, 23 Sep 2009 11:01:38 +0630
Subject: How to calculate total column
In-Reply-To: <77fcd6b20909220648m3cb51e89nff0096a16bac38aa@mail.gmail.com>
Message-ID: <WED.23.SEP.2009.110138.0630.>

hi!

I am having model simulated vertical distribution of NO2 (from 994.600 hPa - 118.000
hPa) over Indian Region. NO2 is in voiume mixing ratio. I want to calculate total
column NO2 between 994.600 -
228.250 hPa. I am using following steps in GRADS to calculate NO2 tropospheric amount
in molecules per cm2. It is sowing values in the expected range. But, could you please
tell whether I am doing correct or not?

'define a=6.022e23/28.97'  (where, 6.022e23 is Avogadro's Number, 28.97 is molecular
mass of air)

'set lev 994.6

'define b=vint(lev,vmr_no2,228.250)/9.8'

'define c=a*b'

'd c'

Thanks in advance

Sachin Ghude

>
> d no2(z=1) no2(z=2) ...
> ?
> If "no2" is mixing ratio then typically you have to multiply the integrand by rho dz
= dp/g, where "dp" is the pressure thickness of each layer, g ~ 9.81.?
>
> ?? ?Arlindo
>
> --
> Arlindo da Silva
> dasilva at alum.mit.edu

------- End of Original Message -------

----------------------------------------------------------------------------------
Dr. Sachin D. Ghude, Scientist(C)
Indian Institute of Tropical Meteorology; www.tropmet.res.in
Physical Meteorology and Aerology Division, NCL, P.O., Pashan Rd., Pune-411 008
Off. Ph. no. 91 20 25893600(Ext-350); Fax: 91 20 25893825
Res 91 20 25899839 Mobile: 91 9373307978

---------- Original Message -----------
From: Arlindo da Silva
To: GRADSUSR at LIST.CINECA.IT
Sent: Wed, 1 Jul 2009 14:45:13 -0400
Subject: Re: How to calculate total column

> 2009/7/1 Libin Yan <zjuyanlibin at 163.com>
>

--
Arlindo da Silva
dasilva at alum.mit.edu

------- End of Forwarded Message -------

----------------------------------------------------------------------------------
Dr. Sachin D. Ghude, Scientist(C)
Indian Institute of Tropical Meteorology; www.tropmet.res.in
Physical Meteorology and Aerology Division, NCL, P.O., Pashan Rd., Pune-411 008
Off. Ph. no. +91 20 25893600(Ext-350); Fax: +91 20 25893825
Res +91 20 25899839 Mobile:+91 9373307978

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From fdaryabor at GOOGLEMAIL.COM  Wed Sep 23 00:35:53 2009
From: fdaryabor at GOOGLEMAIL.COM (Farshid Daryabor)
Date: Wed, 23 Sep 2009 12:35:53 +0800
Subject: sdfwrite [was: Re: command in GrADS 2.0.a5.oga.5]
In-Reply-To: <79aecae70909180757x487d52e9j1e7a4709672be3b0@mail.gmail.com>
Message-ID: <WED.23.SEP.2009.123553.0800.>

Hi Mike
Tanks so much for your replay but when I use 'ncks' I face to following
masage.
Could you please guide me.
ga-> open /home2/fdaryabor/Documents/V.ctl
Scanning description file:  /home2/fdaryabor/Documents/V.ctl
Data file /home2/fdaryabor/Documents/v.dat is open as file 2
ga-> q file 2
File 2 : evaporation mines prescription
  Descriptor: /home2/fdaryabor/Documents/V.ctl
  Binary: /home2/fdaryabor/Documents/v.dat
  Type = Gridded
  Xsize = 360  Ysize = 180  Zsize = 1  Tsize = 12  Esize = 1
  Number of Variables = 1
     v  0  1  v
ga-> set lon 0 360
LON set to 0 360
ga-> set lat 180 359
LAT set to 180 359
ga-> set lev 0 0
LEV set to 0 0
ga-> set t 1 12
Time values set: 1960:1:16:5 1960:12:16:5
ga-> define uwind=u
Define memory allocation size = 6238080 bytes
ga-> define vwind=v.2
Define memory allocation size = 6238080 bytes
ga-> set sdfwrite /home2/fdaryabor/Documents/temp.nc
SDFWrite file name = /home2/fdaryabor/Documents/temp.nc
SDFWrite will replace an existing file
ga-> sdfwrite uwind
Wrote variable uwind to /home2/fdaryabor/Documents/temp.nc
ga-> !cp /home2/fdaryabor/Documents/temp.nc/home2/fdaryabor/Documents/VAR.nc
ga-> sdfwrite vwind
Wrote variable vwind to /home2/fdaryabor/Documents/temp.nc
*ga-> ncks -A -h
/home2/fdaryabor/Documents/temp.nc/home2/fdaryabor/Documents/VAR.nc
Unknown command: ncks*




Best Regards for you
F.Daryabor
On Fri, Sep 18, 2009 at 10:57 PM, Mike Bosilovich <mike.bosilovich at gmail.com
> wrote:

> I just had a similar question, and asked Jennifer offline. So, what to
> do is to build a call to ncks into your script, and it can append data
> onto a file. In my case I loop over many variables, so the file in
> sdfwrite is temp.nc, then I use ncks to append to the actual output
> file I want. I tried to add som script below that may work for you.
>
> On Thu, Sep 17, 2009 at 3:17 AM, Farshid Daryabor
> <fdaryabor at googlemail.com> wrote:
> > Hi all
> > I could use 'sdfwrite', now I want to input 2 variables?  'u' and 'v' in
> one
> > netcdf file.?  I write a script for execute , after 'set sdfwrite
> > /hom2/../VAR.nc' when I type 'sdfwrite' command which is 'sdfwrite uwind
> > vwind.2' for writing 2 variables?  in?  netcdf file, it only gives me one
> of
> > them not both. Please guide me.
> >
> >
> > 'open /home2/fdaryabor/Documents/U.ctl'
> > 'open /home2/fdaryabor/Documents/V.ctl'
> > 'set lon 0 360'
> > 'set lat 180 359'
> > 'set lev 0 0'
> > 'set t 1 last'
> > 'set e 1 last'
> > 'define uwind=u'
> > 'define vwind=v.2'
> > *'set sdfwrite /home2/fdaryabor/Documents/VAR.nc'
>
> 'set sdfwrite temp.nc'
>
> > *'sdfwrite uwind vwind.2'
>
> 'sdfwrite uwind'
> '!cp temp.nc /home2/fdaryabor/Documents/VAR.nc'
> 'sdfwrite vwind'
> 'ncks -A -h temp.nc /home2/fdaryabor/Documents/VAR.nc'
>
>
> If there's any looping involved, then the !cp will over write, so only
> do that on the first iteration of the loop to initialize the file, and
> append all the rest.  -A does the append, and -h  prevents a history
> line in the netcdf metadata. I was looping over many vars, and this
> history was getting too big.
>
> Hope this helps and have a great weekend!!
>
> Mike
>
> >
> > Best Regards
> > F.Daryabor
> >
> > On Wed, Sep 16, 2009 at 12:55 PM, Farshid Daryabor
> > <fdaryabor at googlemail.com> wrote:
> >>
> >> Hi Eric Altshuler
> >> Thanks so much for your guide. I try download grads 2.0.a3.
> >> Best Regards
> >> F.Daryabor
> >>
> >> On Tue, Sep 15, 2009 at 11:49 AM, Eric Altshuler <ela at cola.iges.org>
> >> wrote:
> >>>
> >>> Hello Farshid,
> >>>
> >>> sdfwrite is not a script. It's a built-in command, and you need grads
> >>> 2.0.a3 or higher to use it. You mentioned that you use the grads
> executable
> >>> 'gradsc'. This means you are using an old version of grads. Beginning
> with
> >>> grads 2.0, the 'gradsc' executable does not exist anymore. There are
> only
> >>> two grads executables, 'grads' and 'gradsdap'. Get the latest version
> of
> >>> grads; the sdfwrite command will be available.
> >>>
> >>> Best regards,
> >>>
> >>> Eric L. Altshuler
> >>> Assistant Research Scientist
> >>> Center for Ocean-Land-Atmosphere Studies
> >>> 4041 Powder Mill Road, Suite 302
> >>> Calverton, MD 20705-3106
> >>> USA
> >>>
> >>> E-mail: ela at cola.iges.org
> >>> Phone: (301) 902-1257
> >>> Fax: (301) 595-9793
> >>>
> >>> ----- Original Message -----
> >>> From: "Farshid Daryabor" <fdaryabor at GOOGLEMAIL.COM>
> >>> To: GRADSUSR at LIST.CINECA.IT
> >>> Sent: Tuesday, September 15, 2009 5:19:37 AM GMT -05:00 US/Canada
> Eastern
> >>> Subject: Re: command in GrADS 2.0.a5.oga.5
> >>>
> >>> Hi
> >>> I try for downloading 'sdfwrite' script from "
> >>> http://www.iges.org/grads/gadoc/library.html " but can't find it,
> because
> >>> when I open 'my_data.ctl' in './gradsc' I face to following massage:
> >>>
> >>> ga-> open /home/Arya/fDaryabor/Roms_tools/Run/binary2netcdf.ctl
> >>> Scanning description file:
> >>> /home/Arya/fDaryabor/Roms_tools/Run/binary2netcdf.ctl
> >>> Data file /home/Arya/fDaryabor/Roms_tools/Run/emp.dat is open as file 1
> >>> LON set to 0 360
> >>> LAT set to 180 359
> >>> LEV set to 0 0
> >>> Time values set: 1960:1:16:5 1960:1:16:5
> >>> ga-> set lon 98 120
> >>> LON set to 98 120
> >>> ga-> set lat -10 20
> >>> LAT set to -10 20
> >>> ga-> set t 05z16jan1960 1mo
> >>> Time values set: 1960:5:16:5 1960:1:16:5
> >>> ga-> set sdfwrite /home/Arya/Desktop/EMP.nc
> >>> SET error: Invalid operand
> >>> Operand = sdfwrite /home/arya/desktop/ emp.nc
> >>> I think must download "sdfwrite" script, please you help me, and give
> me
> >>> straight address for find it.
> >>> Best Regards
> >>> F.Daryabor
> >>>
> >>>
> >>>
> >>> On Tue, Sep 15, 2009 at 4:03 PM, ??? < rust123 at yahoo.cn > wrote:
> >>>
> >>>
> >>>
> >>>
> >>>
> >>> hello,everyone
> >>> what are the shortcut keys of the copy and paste command in GrADS
> >>> 2.0.a5.oga.5,thank you in advance.the shfit+insert could not be used in
> the
> >>> windows xp.
> >>>
> >>>
> >>>
> >>>
> >>> ???? hersala < hersala at GMAIL.COM >
> >>> ???? GRADSUSR at LIST.CINECA.IT
> >>> ???? 2009/9/15(??), ?? ?12:32:44
> >>> ??? Re: GS files in GrADS 2.0.a5.oga.5
> >>>
> >>> Hi Hyacinth:
> >>> When I use my own scripts or from another person, I save them in the
> same
> >>> folder from where the data is read by GrADS, that is win32 folder.
> >>> I hope this help you.
> >>> Bye,
> >>> Hern?n
> >>>
> >>>
> >>> 2009/9/13 Hyacinth Cyprain Nnamchi < hc.nnamchi at lasg.iap.ac.cn >
> >>>
> >>>
> >>> Dear Colleagues,
> >>>
> >>> I am using GrADS 2.0.a5.oga.5 from the Opengrads download page (
> >>> http://sourceforge.net/projects/opengrads/files/ ) on MS Windows.I
> notice
> >>> that it does not recognise the in-built .gs files like cbar.gs ,
> cbarn.gs
> >>> etc, although I have confirmed that they are in the "scripts" file.
> >>>
> >>> Does anyone know what could be wrong, where should I place the .gs
> files?
> >>>
> >>>
> >>> Thanks,
> >>> hyacinth
> >>>
> >>>
> >>>
> >>>
> >>> --
> >>>
> >>> Hyacinth C. Nnamchi
> >>> TWAS-CAS Fellow
> >>> State Key Laboratory of Numerical Modeling for
> >>> Atmospheric Sciences and Geophysical Fluid Dynamics (LASG)
> >>> Institute of Atmospheric Physics (IAP)
> >>> Chinese Academy of Sciences (CAS)
> >>> P.O.Box 9804, Beijing 100029, China
> >>> Tel: +86-13488719702
> >>> Fax: +86-10-82995172
> >>> E-mail:hc.nnamchi at lasg.iap.ac.cn <E-mail%3Ahc.nnamchi at lasg.iap.ac.cn>
> >>>
> >>>
> >>>
> >>> ??????? ?????????? ??
> >>
> >
> >
>
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From aspratt2000 at YAHOO.COM  Wed Sep 23 01:18:42 2009
From: aspratt2000 at YAHOO.COM (Aaron Pratt)
Date: Wed, 23 Sep 2009 01:18:42 -0400
Subject: Using GrADS to open HDF-EOS
In-Reply-To: <9b8832d50909222135k2bd51684qdb0cc531049eb615@mail.gmail.com>
Message-ID: <WED.23.SEP.2009.011842.0400.>

Is there a way to use Windows-based GrADS (or GrADSnc, GrADS-DODS,
GrADS-HDF, etc) to open HDF-EOS files associated with MODIS, CloudSat, and
CALIPSO? Or should they be converted into NetCDF files? Thanks in advance
for any information that anyone has on this; it would be greatly
appreciated.



Aaron

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From spc_meteor at YAHOO.COM.BR  Wed Sep 23 08:12:32 2009
From: spc_meteor at YAHOO.COM.BR (Saulo Carvalho)
Date: Wed, 23 Sep 2009 05:12:32 -0700
Subject: Doing templates from .nc files
Message-ID: <WED.23.SEP.2009.051232.0700.>

Hello everybody,


I'm working with avhrr data files available in ftp://eclipse.ncdc.noaa.gov/pub/OI-daily-v2/NetCDF/. For my surprise,?when I make a .ctl file in order to template the .nc's, it?doesn' t work. As these files has?4 variables, it may have a problem in making the template.


Is there an alternative way to solve this problem?
?________________________________________
Saulo Carvalho 


SEMA
Diretoria de Recursos H?dricos 


      ____________________________________________________________________________________
Veja quais s?o os assuntos do momento no Yahoo! +Buscados
http://br.maisbuscados.yahoo.com
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From mike.bosilovich at GMAIL.COM  Wed Sep 23 10:39:53 2009
From: mike.bosilovich at GMAIL.COM (Mike Bosilovich)
Date: Wed, 23 Sep 2009 10:39:53 -0400
Subject: sdfwrite [was: Re: command in GrADS 2.0.a5.oga.5]
In-Reply-To: <9b8832d50909222135k2bd51684qdb0cc531049eb615@mail.gmail.com>
Message-ID: <WED.23.SEP.2009.103953.0400.>

ncks is a unix command, so you need the   !   infront, like !cp

Also, you need to make sure that ncks is installed and in the $path.

Good Luck!

Mike

On Wed, Sep 23, 2009 at 12:35 AM, Farshid Daryabor
<fdaryabor at googlemail.com> wrote:
>
> Hi Mike
> Tanks so much for your replay but when I use 'ncks' I face to following
> masage.
> Could you please guide me.
> ga-> open /home2/fdaryabor/Documents/V.ctl
> Scanning description file:?  /home2/fdaryabor/Documents/V.ctl
> Data file /home2/fdaryabor/Documents/v.dat is open as file 2
> ga-> q file 2
> File 2 : evaporation mines prescription
> ?  Descriptor: /home2/fdaryabor/Documents/V.ctl
> ?  Binary: /home2/fdaryabor/Documents/v.dat
> ?  Type = Gridded
> ?  Xsize = 360?  Ysize = 180?  Zsize = 1?  Tsize = 12?  Esize = 1
> ?  Number of Variables = 1
> ? ? ? ?  v?  0?  1?  v
> ga-> set lon 0 360
> LON set to 0 360
> ga-> set lat 180 359
> LAT set to 180 359
> ga-> set lev 0 0
> LEV set to 0 0
> ga-> set t 1 12
> Time values set: 1960:1:16:5 1960:12:16:5
> ga-> define uwind=u
> Define memory allocation size = 6238080 bytes
> ga-> define vwind=v.2
> Define memory allocation size = 6238080 bytes
> ga-> set sdfwrite /home2/fdaryabor/Documents/temp.nc
> SDFWrite file name = /home2/fdaryabor/Documents/temp.nc
> SDFWrite will replace an existing file
> ga-> sdfwrite uwind
> Wrote variable uwind to /home2/fdaryabor/Documents/temp.nc
> ga-> !cp /home2/fdaryabor/Documents/temp.nc
> /home2/fdaryabor/Documents/VAR.nc
> ga-> sdfwrite vwind
> Wrote variable vwind to /home2/fdaryabor/Documents/temp.nc
> ga-> ncks -A -h /home2/fdaryabor/Documents/temp.nc
> /home2/fdaryabor/Documents/VAR.nc
> Unknown command: ncks
>
>
>
>
> Best Regards for you
> F.Daryabor
> On Fri, Sep 18, 2009 at 10:57 PM, Mike Bosilovich
> <mike.bosilovich at gmail.com> wrote:
>>
>> I just had a similar question, and asked Jennifer offline. So, what to
>> do is to build a call to ncks into your script, and it can append data
>> onto a file. In my case I loop over many variables, so the file in
>> sdfwrite is temp.nc, then I use ncks to append to the actual output
>> file I want. I tried to add som script below that may work for you.
>>
>> On Thu, Sep 17, 2009 at 3:17 AM, Farshid Daryabor
>> <fdaryabor at googlemail.com> wrote:
>> > Hi all
>> > I could use 'sdfwrite', now I want to input 2 variables?? ? 'u' and 'v' in
>> > one
>> > netcdf file.?? ? I write a script for execute , after 'set sdfwrite
>> > /hom2/../VAR.nc' when I type 'sdfwrite' command which is 'sdfwrite uwind
>> > vwind.2' for writing 2 variables?? ? in?? ? netcdf file, it only gives me
>> > one of
>> > them not both. Please guide me.
>> >
>> >
>> > 'open /home2/fdaryabor/Documents/U.ctl'
>> > 'open /home2/fdaryabor/Documents/V.ctl'
>> > 'set lon 0 360'
>> > 'set lat 180 359'
>> > 'set lev 0 0'
>> > 'set t 1 last'
>> > 'set e 1 last'
>> > 'define uwind=u'
>> > 'define vwind=v.2'
>> > *'set sdfwrite /home2/fdaryabor/Documents/VAR.nc'
>>
>> 'set sdfwrite temp.nc'
>>
>> > *'sdfwrite uwind vwind.2'
>>
>> 'sdfwrite uwind'
>> '!cp temp.nc /home2/fdaryabor/Documents/VAR.nc'
>> 'sdfwrite vwind'
>> 'ncks -A -h temp.nc /home2/fdaryabor/Documents/VAR.nc'
>>
>>
>> If there's any looping involved, then the !cp will over write, so only
>> do that on the first iteration of the loop to initialize the file, and
>> append all the rest. ? -A does the append, and -h ? prevents a history
>> line in the netcdf metadata. I was looping over many vars, and this
>> history was getting too big.
>>
>> Hope this helps and have a great weekend!!
>>
>> Mike
>>
>> >
>> > Best Regards
>> > F.Daryabor
>> >
>> > On Wed, Sep 16, 2009 at 12:55 PM, Farshid Daryabor
>> > <fdaryabor at googlemail.com> wrote:
>> >>
>> >> Hi Eric Altshuler
>> >> Thanks so much for your guide. I try download grads 2.0.a3.
>> >> Best Regards
>> >> F.Daryabor
>> >>
>> >> On Tue, Sep 15, 2009 at 11:49 AM, Eric Altshuler <ela at cola.iges.org>
>> >> wrote:
>> >>>
>> >>> Hello Farshid,
>> >>>
>> >>> sdfwrite is not a script. It's a built-in command, and you need grads
>> >>> 2.0.a3 or higher to use it. You mentioned that you use the grads
>> >>> executable
>> >>> 'gradsc'. This means you are using an old version of grads. Beginning
>> >>> with
>> >>> grads 2.0, the 'gradsc' executable does not exist anymore. There are
>> >>> only
>> >>> two grads executables, 'grads' and 'gradsdap'. Get the latest version
>> >>> of
>> >>> grads; the sdfwrite command will be available.
>> >>>
>> >>> Best regards,
>> >>>
>> >>> Eric L. Altshuler
>> >>> Assistant Research Scientist
>> >>> Center for Ocean-Land-Atmosphere Studies
>> >>> 4041 Powder Mill Road, Suite 302
>> >>> Calverton, MD 20705-3106
>> >>> USA
>> >>>
>> >>> E-mail: ela at cola.iges.org
>> >>> Phone: (301) 902-1257
>> >>> Fax: (301) 595-9793
>> >>>
>> >>> ----- Original Message -----
>> >>> From: "Farshid Daryabor" <fdaryabor at GOOGLEMAIL.COM>
>> >>> To: GRADSUSR at LIST.CINECA.IT
>> >>> Sent: Tuesday, September 15, 2009 5:19:37 AM GMT -05:00 US/Canada
>> >>> Eastern
>> >>> Subject: Re: command in GrADS 2.0.a5.oga.5
>> >>>
>> >>> Hi
>> >>> I try for downloading 'sdfwrite' script from "
>> >>> http://www.iges.org/grads/gadoc/library.html " but can't find it,
>> >>> because
>> >>> when I open 'my_data.ctl' in './gradsc' I face to following massage:
>> >>>
>> >>> ga-> open /home/Arya/fDaryabor/Roms_tools/Run/binary2netcdf.ctl
>> >>> Scanning description file:
>> >>> /home/Arya/fDaryabor/Roms_tools/Run/binary2netcdf.ctl
>> >>> Data file /home/Arya/fDaryabor/Roms_tools/Run/emp.dat is open as file
>> >>> 1
>> >>> LON set to 0 360
>> >>> LAT set to 180 359
>> >>> LEV set to 0 0
>> >>> Time values set: 1960:1:16:5 1960:1:16:5
>> >>> ga-> set lon 98 120
>> >>> LON set to 98 120
>> >>> ga-> set lat -10 20
>> >>> LAT set to -10 20
>> >>> ga-> set t 05z16jan1960 1mo
>> >>> Time values set: 1960:5:16:5 1960:1:16:5
>> >>> ga-> set sdfwrite /home/Arya/Desktop/EMP.nc
>> >>> SET error: Invalid operand
>> >>> Operand = sdfwrite /home/arya/desktop/ emp.nc
>> >>> I think must download "sdfwrite" script, please you help me, and give
>> >>> me
>> >>> straight address for find it.
>> >>> Best Regards
>> >>> F.Daryabor
>> >>>
>> >>>
>> >>>
>> >>> On Tue, Sep 15, 2009 at 4:03 PM, ????????? < rust123 at yahoo.cn > wrote:
>> >>>
>> >>>
>> >>>
>> >>>
>> >>>
>> >>> hello,everyone
>> >>> what are the shortcut keys of the copy and paste command in GrADS
>> >>> 2.0.a5.oga.5,thank you in advance.the shfit+insert could not be used
>> >>> in the
>> >>> windows xp.
>> >>>
>> >>>
>> >>>
>> >>>
>> >>> ???????????? hersala < hersala at GMAIL.COM >
>> >>> ???????????? GRADSUSR at LIST.CINECA.IT
>> >>> ???????????? 2009/9/15(??????), ????? ???12:32:44
>> >>> ????????? Re: GS files in GrADS 2.0.a5.oga.5
>> >>>
>> >>> Hi Hyacinth:
>> >>> When I use my own scripts or from another person, I save them in the
>> >>> same
>> >>> folder from where the data is read by GrADS, that is win32 folder.
>> >>> I hope this help you.
>> >>> Bye,
>> >>> Hern???n
>> >>>
>> >>>
>> >>> 2009/9/13 Hyacinth Cyprain Nnamchi < hc.nnamchi at lasg.iap.ac.cn >
>> >>>
>> >>>
>> >>> Dear Colleagues,
>> >>>
>> >>> I am using GrADS 2.0.a5.oga.5 from the Opengrads download page (
>> >>> http://sourceforge.net/projects/opengrads/files/ ) on MS Windows.I
>> >>> notice
>> >>> that it does not recognise the in-built .gs files like cbar.gs ,
>> >>> cbarn.gs
>> >>> etc, although I have confirmed that they are in the "scripts" file.
>> >>>
>> >>> Does anyone know what could be wrong, where should I place the .gs
>> >>> files?
>> >>>
>> >>>
>> >>> Thanks,
>> >>> hyacinth
>> >>>
>> >>>
>> >>>
>> >>>
>> >>> --
>> >>>
>> >>> Hyacinth C. Nnamchi
>> >>> TWAS-CAS Fellow
>> >>> State Key Laboratory of Numerical Modeling for
>> >>> Atmospheric Sciences and Geophysical Fluid Dynamics (LASG)
>> >>> Institute of Atmospheric Physics (IAP)
>> >>> Chinese Academy of Sciences (CAS)
>> >>> P.O.Box 9804, Beijing 100029, China
>> >>> Tel: +86-13488719702
>> >>> Fax: +86-10-82995172
>> >>> E-mail:hc.nnamchi at lasg.iap.ac.cn
>> >>>
>> >>>
>> >>>
>> >>> ???????????????????? ????????????????????????????? ??????
>> >>
>> >
>> >
>
>


From Charles.Seman at NOAA.GOV  Wed Sep 23 12:16:16 2009
From: Charles.Seman at NOAA.GOV (Charles Seman)
Date: Wed, 23 Sep 2009 12:16:16 -0400
Subject: Doing templates from .nc files
In-Reply-To: <981197.36794.qm@web110702.mail.gq1.yahoo.com>
Message-ID: <WED.23.SEP.2009.121616.0400.>

Saulo,

Do you have access to the Unix utility "ncrcat"?
http://nco.sourceforge.net/nco.html#ncrcat-netCDF-Record-Concatenator

I hope this helps,
Chuck

Saulo Carvalho wrote:
> Hello everybody,
>
>
> I'm working with avhrr data files available in
> ftp://eclipse.ncdc.noaa.gov/pub/OI-daily-v2/NetCDF/. For my
> surprise, when I make a .ctl file in order to template the .nc's,
> it doesn' t work. As these files has 4 variables, it may have a
> problem in making the template.
>
>
> Is there an alternative way to solve this problem?
>
>
> ________________________________________
> Saulo Carvalho
>
> SEMA
> Diretoria de Recursos H?dricos
>
> ------------------------------------------------------------------------
> Veja quais s?o os assuntos do momento no Yahoo! + Buscados: Top 10
> <http://br.rd.yahoo.com/mail/taglines/mail/*http://br.maisbuscados.yahoo.com/>
> - Celebridades
> <http://br.rd.yahoo.com/mail/taglines/mail/*http://br.maisbuscados.yahoo.com/celebridades/>
> - M?sica
> <http://br.rd.yahoo.com/mail/taglines/mail/*http://br.maisbuscados.yahoo.com/m%C3%BAsica/>
> - Esportes
> <http://br.rd.yahoo.com/mail/taglines/mail/*http://br.maisbuscados.yahoo.com/esportes/>

--

Please note that Charles.Seman at noaa.gov should be considered my NOAA
email address, not cjs at gfdl.noaa.gov.

********************************************************************
 Charles Seman                                Charles.Seman at noaa.gov
 U.S. Department of Commerce / NOAA / OAR
 Geophysical Fluid Dynamics Laboratory         voice: (609) 452-6547
 201 Forrestal Road                              fax: (609) 987-5063
 Princeton, NJ  08540-6649            http://www.gfdl.noaa.gov/~cjs/
********************************************************************

"The contents of this message are mine personally and do not necessarily
reflect any position of the Government or NOAA."


From Charles.Seman at NOAA.GOV  Wed Sep 23 12:20:39 2009
From: Charles.Seman at NOAA.GOV (Charles Seman)
Date: Wed, 23 Sep 2009 12:20:39 -0400
Subject: Doing templates from .nc files
In-Reply-To: <4ABA49D0.2080602@noaa.gov>
Message-ID: <WED.23.SEP.2009.122039.0400.>

Saulo,

Sorry about incomplete information: http://nco.sourceforge.net/#Definition
states that "NCO works well on most modern operating systems"....

Chuck

Charles Seman wrote:
> Saulo,
>
> Do you have access to the Unix utility "ncrcat"?
> http://nco.sourceforge.net/nco.html#ncrcat-netCDF-Record-Concatenator
>
> I hope this helps,
> Chuck
>
> Saulo Carvalho wrote:
>> Hello everybody,
>>
>>
>> I'm working with avhrr data files available in
>> ftp://eclipse.ncdc.noaa.gov/pub/OI-daily-v2/NetCDF/. For my surprise,
>> when I make a .ctl file in order to template the .nc's, it doesn' t
>> work. As these files has 4 variables, it may have a problem in making
>> the template.
>>
>>
>> Is there an alternative way to solve this problem?
>>
>>
>> ________________________________________
>> Saulo Carvalho
>>
>> SEMA
>> Diretoria de Recursos H?dricos
>>
>> ------------------------------------------------------------------------
>> Veja quais s?o os assuntos do momento no Yahoo! + Buscados: Top 10
>> <http://br.rd.yahoo.com/mail/taglines/mail/*http://br.maisbuscados.yahoo.com/>
>> - Celebridades
>> <http://br.rd.yahoo.com/mail/taglines/mail/*http://br.maisbuscados.yahoo.com/celebridades/>
>> - M?sica
>> <http://br.rd.yahoo.com/mail/taglines/mail/*http://br.maisbuscados.yahoo.com/m%C3%BAsica/>
>> - Esportes
>> <http://br.rd.yahoo.com/mail/taglines/mail/*http://br.maisbuscados.yahoo.com/esportes/>
>>
>

--

Please note that Charles.Seman at noaa.gov should be considered my NOAA
email address, not cjs at gfdl.noaa.gov.

********************************************************************
 Charles Seman                                Charles.Seman at noaa.gov
 U.S. Department of Commerce / NOAA / OAR
 Geophysical Fluid Dynamics Laboratory         voice: (609) 452-6547
 201 Forrestal Road                              fax: (609) 987-5063
 Princeton, NJ  08540-6649            http://www.gfdl.noaa.gov/~cjs/
********************************************************************

"The contents of this message are mine personally and do not necessarily
reflect any position of the Government or NOAA."


From mike.bosilovich at GMAIL.COM  Wed Sep 23 12:59:47 2009
From: mike.bosilovich at GMAIL.COM (Mike Bosilovich)
Date: Wed, 23 Sep 2009 12:59:47 -0400
Subject: Using GrADS to open HDF-EOS
In-Reply-To: <E230976E0C4D45C9BDBFF13B730D6059@OfficeLaptop>
Message-ID: <WED.23.SEP.2009.125947.0400.>

It's not clear which data you are looking at, level 2 or level 3.  The
descriptor file below I used to analyze the level 3 global 5km MODIS
LST product.  I don't think level 2 is possible.

When i've wanted to analyze the level 2 granules in grads, I had to
first convert to a regular grid. I think HDFView will do that, but not
in a batch way.

I hope that someone has a better answer than mine!

Mike

DSET MOD11C1.A2001%m2%d2.004.hdf
title MODIS Land Surface Temperature (LST) CMG v4
DTYPE hdfsds
OPTIONS yrev template
unpack scale_factor add_offset
undef 0 _FillValue
XDEF 7200 linear -180 0.05
YDEF 3600 linear  -90 0.05
ZDEF 1 linear 1 1
TDEF 115 linear 04jul2001 1dy
VARS 6
LST_Day_CMG=>LSTDay 0 y,x Daily daytime 3min CMG Land-surface Temp
LST_Night_CMG=>LSTNite 0 y,x Daily nighttime 3min CMG Land-surface Temp
QC_Day=>QCDay  0 y,x Quality control for daytime LST and emissivity
QC_Night=>QCNite  0 y,x Quality control for nighttime LST and emissivity
Day_view_time=>DayTime  0 y,x Time of daytime LST observation (UTC)
Night_view_time=>NiteTime  0 y,x Time of nighttime LST observation (UTC)
ENDVARS


On Wed, Sep 23, 2009 at 1:18 AM, Aaron Pratt <aspratt2000 at yahoo.com> wrote:
> Is there a way to use Windows-based GrADS (or GrADSnc, GrADS-DODS,
> GrADS-HDF, etc) to open HDF-EOS files associated with MODIS, CloudSat, and
> CALIPSO? Or should they be converted into NetCDF files? Thanks in advance
> for any information that anyone has on this; it would be greatly
> appreciated.
>
>
>
> Aaron


From Chris.Lynnes at NASA.GOV  Wed Sep 23 13:51:34 2009
From: Chris.Lynnes at NASA.GOV (Christopher Lynnes)
Date: Wed, 23 Sep 2009 13:51:34 -0400
Subject: Using GrADS to open HDF-EOS
In-Reply-To: <79aecae70909230959i399e4d1bv7b821a000bae8d9a@mail.gmail.com>
Message-ID: <WED.23.SEP.2009.135134.0400.>

On Sep 23, 2009, at 12:59 PM, Mike Bosilovich wrote:

> It's not clear which data you are looking at, level 2 or level 3.  The
> descriptor file below I used to analyze the level 3 global 5km MODIS
> LST product.  I don't think level 2 is possible.
>
> When i've wanted to analyze the level 2 granules in grads, I had to
> first convert to a regular grid. I think HDFView will do that, but not
> in a batch way.
>
> I hope that someone has a better answer than mine!

I don't have any better news, but a little more detail.  The Cloudsat
and CALIPSO are both Level 1B or 2, meaning satellite swath / vertical
profile (not grid), and so are not well suited to GrADS, where the
"Gr" stands for "Grid" 8-).   There may be a way to define an X-Y grid
with X being along-track distance and Y the vertical height / pressure
level, but I admit that is beyond my ken.

Converting to NetCDF/CF-1, unfortunately, does not solve this. (Though
if you could properly convert to NetCDF/CF-1, the IDV tool could be
used instead; however the reformatting of the geolocation aspect is a
tricky thing.)

If you want to *visualize* Cloudsat or CALIPSO swath/profile data, you
can do that online at our A-Train Data Depot:
http://gdata1.sci.gsfc.nasa.gov/daac-bin/G3/gui.cgi?instance_id=atrain

Analysis and manipulation, alas, requires more work on your part...

>
> Mike
>
> DSET MOD11C1.A2001%m2%d2.004.hdf
> title MODIS Land Surface Temperature (LST) CMG v4
> DTYPE hdfsds
> OPTIONS yrev template
> unpack scale_factor add_offset
> undef 0 _FillValue
> XDEF 7200 linear -180 0.05
> YDEF 3600 linear  -90 0.05
> ZDEF 1 linear 1 1
> TDEF 115 linear 04jul2001 1dy
> VARS 6
> LST_Day_CMG=>LSTDay 0 y,x Daily daytime 3min CMG Land-surface Temp
> LST_Night_CMG=>LSTNite 0 y,x Daily nighttime 3min CMG Land-surface
> Temp
> QC_Day=>QCDay  0 y,x Quality control for daytime LST and emissivity
> QC_Night=>QCNite  0 y,x Quality control for nighttime LST and
> emissivity
> Day_view_time=>DayTime  0 y,x Time of daytime LST observation (UTC)
> Night_view_time=>NiteTime  0 y,x Time of nighttime LST observation
> (UTC)
> ENDVARS
>
>
> On Wed, Sep 23, 2009 at 1:18 AM, Aaron Pratt <aspratt2000 at yahoo.com>
> wrote:
>> Is there a way to use Windows-based GrADS (or GrADSnc, GrADS-DODS,
>> GrADS-HDF, etc) to open HDF-EOS files associated with MODIS,
>> CloudSat, and
>> CALIPSO? Or should they be converted into NetCDF files? Thanks in
>> advance
>> for any information that anyone has on this; it would be greatly
>> appreciated.
>>
>>
>>
>> Aaron

--
Christopher Lynnes             NASA/GSFC, Code 610.2
301-614-5185


From Ajaya.Mohan at EC.GC.CA  Wed Sep 23 19:13:46 2009
From: Ajaya.Mohan at EC.GC.CA (Ajaya Mohan)
Date: Wed, 23 Sep 2009 16:13:46 -0700
Subject: Doing templates from .nc files
In-Reply-To: <981197.36794.qm@web110702.mail.gq1.yahoo.com>
Message-ID: <WED.23.SEP.2009.161346.0700.>

Try this, I am using Version 1.9b4, it should work....


dset ^avhrr-only-v2.%y4%m2%d2.nc
options template
dtype netcdf
undef -9.96921e+36 _FillValue
unpack scale_factor add_offset
title Daily-OI-V2, final, Data (Ship, Buoy, AVHRR, GSFC-ice)
xdef 1440 linear  0.125 0.25
ydef 720 linear -89.875 0.25
zdef 1 linear 1 1
tdef 40 linear 00Z10SEP1982 1dy
vars 4
sst=>sst   0 t,z,y,x Daily sea surface temperature
anom=>anom  0 t,z,y,x Daily sea surface temperature anomalies
err=>err   0 t,z,y,x Estimated error standard deviation of analysed_sst
ice=>ice   0 t,z,y,x Sea ice concentration
endvars

ajaya

Saulo Carvalho wrote:
> Hello everybody,
>
>
> I'm working with avhrr data files available in
> ftp://eclipse.ncdc.noaa.gov/pub/OI-daily-v2/NetCDF/. For my
> surprise, when I make a .ctl file in order to template the .nc's,
> it doesn' t work. As these files has 4 variables, it may have a problem
> in making the template.
>
>
> Is there an alternative way to solve this problem?
>
>
> ________________________________________
> Saulo Carvalho
>
>
> SEMA
> Diretoria de Recursos H?dricos


From jgmsantos at GMAIL.COM  Wed Sep 23 19:53:47 2009
From: jgmsantos at GMAIL.COM (Guilherme Martins)
Date: Wed, 23 Sep 2009 20:53:47 -0300
Subject: Doing templates from .nc files
In-Reply-To: <4ABAABAA.9070504@ec.gc.ca>
Message-ID: <WED.23.SEP.2009.205347.0300.>

You have to do:

sdfopen uwnd.1990.nc uwnd.%y4.nc 200
d your_variable

uwnd.%y4.nc = your template
200 = number times you want

This resolve your problem.

Guilherme.

2009/9/23 Ajaya Mohan <Ajaya.Mohan at ec.gc.ca>

> Try this, I am using Version 1.9b4, it should work....
>
>
> dset ^avhrr-only-v2.%y4%m2%d2.nc
> options template
> dtype netcdf
> undef -9.96921e+36 _FillValue
> unpack scale_factor add_offset
> title Daily-OI-V2, final, Data (Ship, Buoy, AVHRR, GSFC-ice)
> xdef 1440 linear  0.125 0.25
> ydef 720 linear -89.875 0.25
> zdef 1 linear 1 1
> tdef 40 linear 00Z10SEP1982 1dy
> vars 4
> sst=>sst   0 t,z,y,x Daily sea surface temperature
> anom=>anom  0 t,z,y,x Daily sea surface temperature anomalies
> err=>err   0 t,z,y,x Estimated error standard deviation of analysed_sst
> ice=>ice   0 t,z,y,x Sea ice concentration
> endvars
>
> ajaya
>
>
> Saulo Carvalho wrote:
>
>> Hello everybody,
>>
>>
>> I'm working with avhrr data files available in
>> ftp://eclipse.ncdc.noaa.gov/pub/OI-daily-v2/NetCDF/. For my
>> surprise, when I make a .ctl file in order to template the .nc's,
>> it doesn' t work. As these files has 4 variables, it may have a problem
>> in making the template.
>>
>>
>> Is there an alternative way to solve this problem?
>>
>>
>> ________________________________________
>> Saulo Carvalho
>>
>>
>> SEMA
>> Diretoria de Recursos H?dricos
>>
>


-- 
-----------------------------------------------------------
Jos? Guilherme Martins dos Santos
Grupo de Modelagem da Atmosfera e Interfaces - GMAI
Divis?o de Modelagem e Desenvolvimento
Centro de Previs?o de Tempo e Estudos Clim?ticos    -  INPE
Rodovia Presidente Dutra, km 39   -    CEP 12630-000
Cachoeira Paulista, SP, Brasil
Telefone(CP): +55 12 3185 8529 / Celular: +55 12 91678770
E-mail: guilherme.martins at cptec.inpe.br
E-mail alternativo: jgmsantos at gmail.com
Homepage: http://jgmsantos.googlepages.com/index.html:
-----------------------------------------------------------
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From Ajaya.Mohan at EC.GC.CA  Wed Sep 23 20:13:24 2009
From: Ajaya.Mohan at EC.GC.CA (Ajaya Mohan)
Date: Wed, 23 Sep 2009 17:13:24 -0700
Subject: Doing templates from .nc files
In-Reply-To: <4ABAABAA.9070504@ec.gc.ca>
Message-ID: <WED.23.SEP.2009.171324.0700.>

Use this as a template.
Copy the following in a ctl file and use open <ctl file>
for the avhrr sst  from ftp://eclipse.ncdc.noaa.gov/pub/OI-daily-v2/NetCDF/
Of course, tdef represents time of the data you want to use

ajaya

Ajaya Mohan wrote:
> Try this, I am using Version 1.9b4, it should work....
>
>
> dset ^avhrr-only-v2.%y4%m2%d2.nc
> options template
> dtype netcdf
> undef -9.96921e+36 _FillValue
> unpack scale_factor add_offset
> title Daily-OI-V2, final, Data (Ship, Buoy, AVHRR, GSFC-ice)
> xdef 1440 linear  0.125 0.25
> ydef 720 linear -89.875 0.25
> zdef 1 linear 1 1
> tdef 40 linear 00Z10SEP1982 1dy
> vars 4
> sst=>sst   0 t,z,y,x Daily sea surface temperature
> anom=>anom  0 t,z,y,x Daily sea surface temperature anomalies
> err=>err   0 t,z,y,x Estimated error standard deviation of analysed_sst
> ice=>ice   0 t,z,y,x Sea ice concentration
> endvars
>
> ajaya
>
> Saulo Carvalho wrote:
>> Hello everybody,
>>
>>
>> I'm working with avhrr data files available in
>> ftp://eclipse.ncdc.noaa.gov/pub/OI-daily-v2/NetCDF/. For my surprise,
>> when I make a .ctl file in order to template the .nc's, it doesn' t
>> work. As these files has 4 variables, it may have a problem in making
>> the template.
>>
>>
>> Is there an alternative way to solve this problem?
>>
>>
>> ________________________________________
>> Saulo Carvalho
>>
>>
>> SEMA
>> Diretoria de Recursos H?dricos
>
>
>


From fdaryabor at GOOGLEMAIL.COM  Wed Sep 23 22:28:09 2009
From: fdaryabor at GOOGLEMAIL.COM (Farshid Daryabor)
Date: Thu, 24 Sep 2009 10:28:09 +0800
Subject: sdfwrite [was: Re: command in GrADS 2.0.a5.oga.5]
In-Reply-To: <79aecae70909230739k62e3d28dyc70dea14d4aec575@mail.gmail.com>
Message-ID: <THU.24.SEP.2009.102809.0800.>

Hi Mike
Thanks so much for your guide I try for it.
Best Regards for you
F.Daryabor

On Wed, Sep 23, 2009 at 10:39 PM, Mike Bosilovich <mike.bosilovich at gmail.com
> wrote:

> ncks is a unix command, so you need the   !   infront, like !cp
>
> Also, you need to make sure that ncks is installed and in the $path.
>
> Good Luck!
>
> Mike
>
> On Wed, Sep 23, 2009 at 12:35 AM, Farshid Daryabor
> <fdaryabor at googlemail.com> wrote:
> >
> > Hi Mike
> > Tanks so much for your replay but when I use 'ncks' I face to following
> > masage.
> > Could you please guide me.
> > ga-> open /home2/fdaryabor/Documents/V.ctl
> > Scanning description file:?  /home2/fdaryabor/Documents/V.ctl
> > Data file /home2/fdaryabor/Documents/v.dat is open as file 2
> > ga-> q file 2
> > File 2 : evaporation mines prescription
> > ?  Descriptor: /home2/fdaryabor/Documents/V.ctl
> > ?  Binary: /home2/fdaryabor/Documents/v.dat
> > ?  Type = Gridded
> > ?  Xsize = 360?  Ysize = 180?  Zsize = 1?  Tsize = 12?  Esize = 1
> > ?  Number of Variables = 1
> > ? ? ? ?  v?  0?  1?  v
> > ga-> set lon 0 360
> > LON set to 0 360
> > ga-> set lat 180 359
> > LAT set to 180 359
> > ga-> set lev 0 0
> > LEV set to 0 0
> > ga-> set t 1 12
> > Time values set: 1960:1:16:5 1960:12:16:5
> > ga-> define uwind=u
> > Define memory allocation size = 6238080 bytes
> > ga-> define vwind=v.2
> > Define memory allocation size = 6238080 bytes
> > ga-> set sdfwrite /home2/fdaryabor/Documents/temp.nc
> > SDFWrite file name = /home2/fdaryabor/Documents/temp.nc
> > SDFWrite will replace an existing file
> > ga-> sdfwrite uwind
> > Wrote variable uwind to /home2/fdaryabor/Documents/temp.nc
> > ga-> !cp /home2/fdaryabor/Documents/temp.nc
> > /home2/fdaryabor/Documents/VAR.nc
> > ga-> sdfwrite vwind
> > Wrote variable vwind to /home2/fdaryabor/Documents/temp.nc
> > ga-> ncks -A -h /home2/fdaryabor/Documents/temp.nc
> > /home2/fdaryabor/Documents/VAR.nc
> > Unknown command: ncks
> >
> >
> >
> >
> > Best Regards for you
> > F.Daryabor
> > On Fri, Sep 18, 2009 at 10:57 PM, Mike Bosilovich
> > <mike.bosilovich at gmail.com> wrote:
> >>
> >> I just had a similar question, and asked Jennifer offline. So, what to
> >> do is to build a call to ncks into your script, and it can append data
> >> onto a file. In my case I loop over many variables, so the file in
> >> sdfwrite is temp.nc, then I use ncks to append to the actual output
> >> file I want. I tried to add som script below that may work for you.
> >>
> >> On Thu, Sep 17, 2009 at 3:17 AM, Farshid Daryabor
> >> <fdaryabor at googlemail.com> wrote:
> >> > Hi all
> >> > I could use 'sdfwrite', now I want to input 2 variables? ? 'u' and 'v'
> in
> >> > one
> >> > netcdf file.? ? I write a script for execute , after 'set sdfwrite
> >> > /hom2/../VAR.nc' when I type 'sdfwrite' command which is 'sdfwrite
> uwind
> >> > vwind.2' for writing 2 variables? ? in? ? netcdf file, it only gives
> me
> >> > one of
> >> > them not both. Please guide me.
> >> >
> >> >
> >> > 'open /home2/fdaryabor/Documents/U.ctl'
> >> > 'open /home2/fdaryabor/Documents/V.ctl'
> >> > 'set lon 0 360'
> >> > 'set lat 180 359'
> >> > 'set lev 0 0'
> >> > 'set t 1 last'
> >> > 'set e 1 last'
> >> > 'define uwind=u'
> >> > 'define vwind=v.2'
> >> > *'set sdfwrite /home2/fdaryabor/Documents/VAR.nc'
> >>
> >> 'set sdfwrite temp.nc'
> >>
> >> > *'sdfwrite uwind vwind.2'
> >>
> >> 'sdfwrite uwind'
> >> '!cp temp.nc /home2/fdaryabor/Documents/VAR.nc'
> >> 'sdfwrite vwind'
> >> 'ncks -A -h temp.nc /home2/fdaryabor/Documents/VAR.nc'
> >>
> >>
> >> If there's any looping involved, then the !cp will over write, so only
> >> do that on the first iteration of the loop to initialize the file, and
> >> append all the rest. ? -A does the append, and -h ? prevents a history
> >> line in the netcdf metadata. I was looping over many vars, and this
> >> history was getting too big.
> >>
> >> Hope this helps and have a great weekend!!
> >>
> >> Mike
> >>
> >> >
> >> > Best Regards
> >> > F.Daryabor
> >> >
> >> > On Wed, Sep 16, 2009 at 12:55 PM, Farshid Daryabor
> >> > <fdaryabor at googlemail.com> wrote:
> >> >>
> >> >> Hi Eric Altshuler
> >> >> Thanks so much for your guide. I try download grads 2.0.a3.
> >> >> Best Regards
> >> >> F.Daryabor
> >> >>
> >> >> On Tue, Sep 15, 2009 at 11:49 AM, Eric Altshuler <ela at cola.iges.org>
> >> >> wrote:
> >> >>>
> >> >>> Hello Farshid,
> >> >>>
> >> >>> sdfwrite is not a script. It's a built-in command, and you need
> grads
> >> >>> 2.0.a3 or higher to use it. You mentioned that you use the grads
> >> >>> executable
> >> >>> 'gradsc'. This means you are using an old version of grads.
> Beginning
> >> >>> with
> >> >>> grads 2.0, the 'gradsc' executable does not exist anymore. There are
> >> >>> only
> >> >>> two grads executables, 'grads' and 'gradsdap'. Get the latest
> version
> >> >>> of
> >> >>> grads; the sdfwrite command will be available.
> >> >>>
> >> >>> Best regards,
> >> >>>
> >> >>> Eric L. Altshuler
> >> >>> Assistant Research Scientist
> >> >>> Center for Ocean-Land-Atmosphere Studies
> >> >>> 4041 Powder Mill Road, Suite 302
> >> >>> Calverton, MD 20705-3106
> >> >>> USA
> >> >>>
> >> >>> E-mail: ela at cola.iges.org
> >> >>> Phone: (301) 902-1257
> >> >>> Fax: (301) 595-9793
> >> >>>
> >> >>> ----- Original Message -----
> >> >>> From: "Farshid Daryabor" <fdaryabor at GOOGLEMAIL.COM>
> >> >>> To: GRADSUSR at LIST.CINECA.IT
> >> >>> Sent: Tuesday, September 15, 2009 5:19:37 AM GMT -05:00 US/Canada
> >> >>> Eastern
> >> >>> Subject: Re: command in GrADS 2.0.a5.oga.5
> >> >>>
> >> >>> Hi
> >> >>> I try for downloading 'sdfwrite' script from "
> >> >>> http://www.iges.org/grads/gadoc/library.html " but can't find it,
> >> >>> because
> >> >>> when I open 'my_data.ctl' in './gradsc' I face to following massage:
> >> >>>
> >> >>> ga-> open /home/Arya/fDaryabor/Roms_tools/Run/binary2netcdf.ctl
> >> >>> Scanning description file:
> >> >>> /home/Arya/fDaryabor/Roms_tools/Run/binary2netcdf.ctl
> >> >>> Data file /home/Arya/fDaryabor/Roms_tools/Run/emp.dat is open as
> file
> >> >>> 1
> >> >>> LON set to 0 360
> >> >>> LAT set to 180 359
> >> >>> LEV set to 0 0
> >> >>> Time values set: 1960:1:16:5 1960:1:16:5
> >> >>> ga-> set lon 98 120
> >> >>> LON set to 98 120
> >> >>> ga-> set lat -10 20
> >> >>> LAT set to -10 20
> >> >>> ga-> set t 05z16jan1960 1mo
> >> >>> Time values set: 1960:5:16:5 1960:1:16:5
> >> >>> ga-> set sdfwrite /home/Arya/Desktop/EMP.nc
> >> >>> SET error: Invalid operand
> >> >>> Operand = sdfwrite /home/arya/desktop/ emp.nc
> >> >>> I think must download "sdfwrite" script, please you help me, and
> give
> >> >>> me
> >> >>> straight address for find it.
> >> >>> Best Regards
> >> >>> F.Daryabor
> >> >>>
> >> >>>
> >> >>>
> >> >>> On Tue, Sep 15, 2009 at 4:03 PM, ??? < rust123 at yahoo.cn > wrote:
> >> >>>
> >> >>>
> >> >>>
> >> >>>
> >> >>>
> >> >>> hello,everyone
> >> >>> what are the shortcut keys of the copy and paste command in GrADS
> >> >>> 2.0.a5.oga.5,thank you in advance.the shfit+insert could not be used
> >> >>> in the
> >> >>> windows xp.
> >> >>>
> >> >>>
> >> >>>
> >> >>>
> >> >>> ???? hersala < hersala at GMAIL.COM >
> >> >>> ???? GRADSUSR at LIST.CINECA.IT
> >> >>> ???? 2009/9/15(??), ?? ?12:32:44
> >> >>> ??? Re: GS files in GrADS 2.0.a5.oga.5
> >> >>>
> >> >>> Hi Hyacinth:
> >> >>> When I use my own scripts or from another person, I save them in the
> >> >>> same
> >> >>> folder from where the data is read by GrADS, that is win32 folder.
> >> >>> I hope this help you.
> >> >>> Bye,
> >> >>> Hern?n
> >> >>>
> >> >>>
> >> >>> 2009/9/13 Hyacinth Cyprain Nnamchi < hc.nnamchi at lasg.iap.ac.cn >
> >> >>>
> >> >>>
> >> >>> Dear Colleagues,
> >> >>>
> >> >>> I am using GrADS 2.0.a5.oga.5 from the Opengrads download page (
> >> >>> http://sourceforge.net/projects/opengrads/files/ ) on MS Windows.I
> >> >>> notice
> >> >>> that it does not recognise the in-built .gs files like cbar.gs ,
> >> >>> cbarn.gs
> >> >>> etc, although I have confirmed that they are in the "scripts" file.
> >> >>>
> >> >>> Does anyone know what could be wrong, where should I place the .gs
> >> >>> files?
> >> >>>
> >> >>>
> >> >>> Thanks,
> >> >>> hyacinth
> >> >>>
> >> >>>
> >> >>>
> >> >>>
> >> >>> --
> >> >>>
> >> >>> Hyacinth C. Nnamchi
> >> >>> TWAS-CAS Fellow
> >> >>> State Key Laboratory of Numerical Modeling for
> >> >>> Atmospheric Sciences and Geophysical Fluid Dynamics (LASG)
> >> >>> Institute of Atmospheric Physics (IAP)
> >> >>> Chinese Academy of Sciences (CAS)
> >> >>> P.O.Box 9804, Beijing 100029, China
> >> >>> Tel: +86-13488719702
> >> >>> Fax: +86-10-82995172
> >> >>> E-mail:hc.nnamchi at lasg.iap.ac.cn<E-mail%3Ahc.nnamchi at lasg.iap.ac.cn>
> >> >>>
> >> >>>
> >> >>>
> >> >>> ??????? ?????????? ??
> >> >>
> >> >
> >> >
> >
> >
>
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From zjuyanlibin at 163.COM  Wed Sep 23 22:54:54 2009
From: zjuyanlibin at 163.COM (=?utf-8?B?WWFuIExpYmlu?=)
Date: Thu, 24 Sep 2009 10:54:54 +0800
Subject: =?utf-8?B?UmU6IFJlOiBVc2luZyBHckFEUyB0byBvcGVuIEhERi1FT1M=?=
Message-ID: <THU.24.SEP.2009.105454.0800.>

Dear Mike,

How can i get level3 global 5km MODIS LST product?
Thank you in advance.

Libin Yan


2009-09-24 



Yan Libin 



???? Mike Bosilovich 
????? 2009-09-24  00:59:52 
???? GRADSUSR 
??? 
??? Re: Using GrADS to open HDF-EOS 
 
It's not clear which data you are looking at, level 2 or level 3.  The
descriptor file below I used to analyze the level 3 global 5km MODIS
LST product.  I don't think level 2 is possible.
When i've wanted to analyze the level 2 granules in grads, I had to
first convert to a regular grid. I think HDFView will do that, but not
in a batch way.
I hope that someone has a better answer than mine!
Mike
DSET MOD11C1.A2001%m2%d2.004.hdf
title MODIS Land Surface Temperature (LST) CMG v4
DTYPE hdfsds
OPTIONS yrev template
unpack scale_factor add_offset
undef 0 _FillValue
XDEF 7200 linear -180 0.05
YDEF 3600 linear  -90 0.05
ZDEF 1 linear 1 1
TDEF 115 linear 04jul2001 1dy
VARS 6
LST_Day_CMG=>LSTDay 0 y,x Daily daytime 3min CMG Land-surface Temp
LST_Night_CMG=>LSTNite 0 y,x Daily nighttime 3min CMG Land-surface Temp
QC_Day=>QCDay  0 y,x Quality control for daytime LST and emissivity
QC_Night=>QCNite  0 y,x Quality control for nighttime LST and emissivity
Day_view_time=>DayTime  0 y,x Time of daytime LST observation (UTC)
Night_view_time=>NiteTime  0 y,x Time of nighttime LST observation (UTC)
ENDVARS
On Wed, Sep 23, 2009 at 1:18 AM, Aaron Pratt <aspratt2000 at yahoo.com> wrote:
> Is there a way to use Windows-based GrADS (or GrADSnc, GrADS-DODS,
> GrADS-HDF, etc) to open HDF-EOS files associated with MODIS, CloudSat, and
> CALIPSO? Or should they be converted into NetCDF files? Thanks in advance
> for any information that anyone has on this; it would be greatly
> appreciated.
>
>
>
> Aaron
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From fdaryabor at GOOGLEMAIL.COM  Thu Sep 24 00:09:13 2009
From: fdaryabor at GOOGLEMAIL.COM (Farshid Daryabor)
Date: Thu, 24 Sep 2009 12:09:13 +0800
Subject: sdfwrite [was: Re: command in GrADS 2.0.a5.oga.5]
In-Reply-To: <79aecae70909230739k62e3d28dyc70dea14d4aec575@mail.gmail.com>
Message-ID: <THU.24.SEP.2009.120913.0800.>

Hi Mike

when I create a new netcdf file and check variable and attributes "time" in
comparing the previous netcdf files is too big do you have any command.
Thanks.
&&&&&&&&&&&&&&&&&&&&&&&&&&
time for the new netcdf files (the VAR.nc including the u and v components
):
&&&&&&&&&&&&&&&&&&&&&&&&&&
" time = 0, 44640, 86400, 131040, 174240, 218880, 262080, 306720, 351360,
    394560, 439200, 482400 ;"
&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
time for the previous netcdf files (the "u.nc" and "v.nc" files) :
&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
  "time = 0.5, 1.5, 2.5, 3.5, 4.5, 5.5, 6.5, 7.5, 8.5, 9.5, 10.5, 11.5 ;"

&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
the control files for u and v are:
&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
dset ^v.dat
title   v-component velocity
undef -9999
xdef 360  linear 360 1
ydef 180 linear 180 1
zdef 1 levels 0
tdef 12 linear 05z16Jan1960 1mo
vars 1
v 0 1 v
endvars

&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
dset ^u.dat
title   u-component velocity
undef -9999
xdef 360  linear 360 1
ydef 180 linear 180 1
zdef 1 levels 0
tdef 12 linear 05z16Jan1960 1mo
vars 1
v 0 1 v
endvars

++++++++++++++++++++++++++++++++++=

Best Regards
F.Daryabor


On Wed, Sep 23, 2009 at 10:39 PM, Mike Bosilovich <mike.bosilovich at gmail.com
> wrote:

> ncks is a unix command, so you need the   !   infront, like !cp
>
> Also, you need to make sure that ncks is installed and in the $path.
>
> Good Luck!
>
> Mike
>
> On Wed, Sep 23, 2009 at 12:35 AM, Farshid Daryabor
> <fdaryabor at googlemail.com> wrote:
> >
> > Hi Mike
> > Tanks so much for your replay but when I use 'ncks' I face to following
> > masage.
> > Could you please guide me.
> > ga-> open /home2/fdaryabor/Documents/V.ctl
> > Scanning description file:?  /home2/fdaryabor/Documents/V.ctl
> > Data file /home2/fdaryabor/Documents/v.dat is open as file 2
> > ga-> q file 2
> > File 2 : evaporation mines prescription
> > ?  Descriptor: /home2/fdaryabor/Documents/V.ctl
> > ?  Binary: /home2/fdaryabor/Documents/v.dat
> > ?  Type = Gridded
> > ?  Xsize = 360?  Ysize = 180?  Zsize = 1?  Tsize = 12?  Esize = 1
> > ?  Number of Variables = 1
> > ? ? ? ?  v?  0?  1?  v
> > ga-> set lon 0 360
> > LON set to 0 360
> > ga-> set lat 180 359
> > LAT set to 180 359
> > ga-> set lev 0 0
> > LEV set to 0 0
> > ga-> set t 1 12
> > Time values set: 1960:1:16:5 1960:12:16:5
> > ga-> define uwind=u
> > Define memory allocation size = 6238080 bytes
> > ga-> define vwind=v.2
> > Define memory allocation size = 6238080 bytes
> > ga-> set sdfwrite /home2/fdaryabor/Documents/temp.nc
> > SDFWrite file name = /home2/fdaryabor/Documents/temp.nc
> > SDFWrite will replace an existing file
> > ga-> sdfwrite uwind
> > Wrote variable uwind to /home2/fdaryabor/Documents/temp.nc
> > ga-> !cp /home2/fdaryabor/Documents/temp.nc
> > /home2/fdaryabor/Documents/VAR.nc
> > ga-> sdfwrite vwind
> > Wrote variable vwind to /home2/fdaryabor/Documents/temp.nc
> > ga-> ncks -A -h /home2/fdaryabor/Documents/temp.nc
> > /home2/fdaryabor/Documents/VAR.nc
> > Unknown command: ncks
> >
> >
> >
> >
> > Best Regards for you
> > F.Daryabor
> > On Fri, Sep 18, 2009 at 10:57 PM, Mike Bosilovich
> > <mike.bosilovich at gmail.com> wrote:
> >>
> >> I just had a similar question, and asked Jennifer offline. So, what to
> >> do is to build a call to ncks into your script, and it can append data
> >> onto a file. In my case I loop over many variables, so the file in
> >> sdfwrite is temp.nc, then I use ncks to append to the actual output
> >> file I want. I tried to add som script below that may work for you.
> >>
> >> On Thu, Sep 17, 2009 at 3:17 AM, Farshid Daryabor
> >> <fdaryabor at googlemail.com> wrote:
> >> > Hi all
> >> > I could use 'sdfwrite', now I want to input 2 variables? ? 'u' and 'v'
> in
> >> > one
> >> > netcdf file.? ? I write a script for execute , after 'set sdfwrite
> >> > /hom2/../VAR.nc' when I type 'sdfwrite' command which is 'sdfwrite
> uwind
> >> > vwind.2' for writing 2 variables? ? in? ? netcdf file, it only gives
> me
> >> > one of
> >> > them not both. Please guide me.
> >> >
> >> >
> >> > 'open /home2/fdaryabor/Documents/U.ctl'
> >> > 'open /home2/fdaryabor/Documents/V.ctl'
> >> > 'set lon 0 360'
> >> > 'set lat 180 359'
> >> > 'set lev 0 0'
> >> > 'set t 1 last'
> >> > 'set e 1 last'
> >> > 'define uwind=u'
> >> > 'define vwind=v.2'
> >> > *'set sdfwrite /home2/fdaryabor/Documents/VAR.nc'
> >>
> >> 'set sdfwrite temp.nc'
> >>
> >> > *'sdfwrite uwind vwind.2'
> >>
> >> 'sdfwrite uwind'
> >> '!cp temp.nc /home2/fdaryabor/Documents/VAR.nc'
> >> 'sdfwrite vwind'
> >> 'ncks -A -h temp.nc /home2/fdaryabor/Documents/VAR.nc'
> >>
> >>
> >> If there's any looping involved, then the !cp will over write, so only
> >> do that on the first iteration of the loop to initialize the file, and
> >> append all the rest. ? -A does the append, and -h ? prevents a history
> >> line in the netcdf metadata. I was looping over many vars, and this
> >> history was getting too big.
> >>
> >> Hope this helps and have a great weekend!!
> >>
> >> Mike
> >>
> >> >
> >> > Best Regards
> >> > F.Daryabor
> >> >
> >> > On Wed, Sep 16, 2009 at 12:55 PM, Farshid Daryabor
> >> > <fdaryabor at googlemail.com> wrote:
> >> >>
> >> >> Hi Eric Altshuler
> >> >> Thanks so much for your guide. I try download grads 2.0.a3.
> >> >> Best Regards
> >> >> F.Daryabor
> >> >>
> >> >> On Tue, Sep 15, 2009 at 11:49 AM, Eric Altshuler <ela at cola.iges.org>
> >> >> wrote:
> >> >>>
> >> >>> Hello Farshid,
> >> >>>
> >> >>> sdfwrite is not a script. It's a built-in command, and you need
> grads
> >> >>> 2.0.a3 or higher to use it. You mentioned that you use the grads
> >> >>> executable
> >> >>> 'gradsc'. This means you are using an old version of grads.
> Beginning
> >> >>> with
> >> >>> grads 2.0, the 'gradsc' executable does not exist anymore. There are
> >> >>> only
> >> >>> two grads executables, 'grads' and 'gradsdap'. Get the latest
> version
> >> >>> of
> >> >>> grads; the sdfwrite command will be available.
> >> >>>
> >> >>> Best regards,
> >> >>>
> >> >>> Eric L. Altshuler
> >> >>> Assistant Research Scientist
> >> >>> Center for Ocean-Land-Atmosphere Studies
> >> >>> 4041 Powder Mill Road, Suite 302
> >> >>> Calverton, MD 20705-3106
> >> >>> USA
> >> >>>
> >> >>> E-mail: ela at cola.iges.org
> >> >>> Phone: (301) 902-1257
> >> >>> Fax: (301) 595-9793
> >> >>>
> >> >>> ----- Original Message -----
> >> >>> From: "Farshid Daryabor" <fdaryabor at GOOGLEMAIL.COM>
> >> >>> To: GRADSUSR at LIST.CINECA.IT
> >> >>> Sent: Tuesday, September 15, 2009 5:19:37 AM GMT -05:00 US/Canada
> >> >>> Eastern
> >> >>> Subject: Re: command in GrADS 2.0.a5.oga.5
> >> >>>
> >> >>> Hi
> >> >>> I try for downloading 'sdfwrite' script from "
> >> >>> http://www.iges.org/grads/gadoc/library.html " but can't find it,
> >> >>> because
> >> >>> when I open 'my_data.ctl' in './gradsc' I face to following massage:
> >> >>>
> >> >>> ga-> open /home/Arya/fDaryabor/Roms_tools/Run/binary2netcdf.ctl
> >> >>> Scanning description file:
> >> >>> /home/Arya/fDaryabor/Roms_tools/Run/binary2netcdf.ctl
> >> >>> Data file /home/Arya/fDaryabor/Roms_tools/Run/emp.dat is open as
> file
> >> >>> 1
> >> >>> LON set to 0 360
> >> >>> LAT set to 180 359
> >> >>> LEV set to 0 0
> >> >>> Time values set: 1960:1:16:5 1960:1:16:5
> >> >>> ga-> set lon 98 120
> >> >>> LON set to 98 120
> >> >>> ga-> set lat -10 20
> >> >>> LAT set to -10 20
> >> >>> ga-> set t 05z16jan1960 1mo
> >> >>> Time values set: 1960:5:16:5 1960:1:16:5
> >> >>> ga-> set sdfwrite /home/Arya/Desktop/EMP.nc
> >> >>> SET error: Invalid operand
> >> >>> Operand = sdfwrite /home/arya/desktop/ emp.nc
> >> >>> I think must download "sdfwrite" script, please you help me, and
> give
> >> >>> me
> >> >>> straight address for find it.
> >> >>> Best Regards
> >> >>> F.Daryabor
> >> >>>
> >> >>>
> >> >>>
> >> >>> On Tue, Sep 15, 2009 at 4:03 PM, ??? < rust123 at yahoo.cn > wrote:
> >> >>>
> >> >>>
> >> >>>
> >> >>>
> >> >>>
> >> >>> hello,everyone
> >> >>> what are the shortcut keys of the copy and paste command in GrADS
> >> >>> 2.0.a5.oga.5,thank you in advance.the shfit+insert could not be used
> >> >>> in the
> >> >>> windows xp.
> >> >>>
> >> >>>
> >> >>>
> >> >>>
> >> >>> ???? hersala < hersala at GMAIL.COM >
> >> >>> ???? GRADSUSR at LIST.CINECA.IT
> >> >>> ???? 2009/9/15(??), ?? ?12:32:44
> >> >>> ??? Re: GS files in GrADS 2.0.a5.oga.5
> >> >>>
> >> >>> Hi Hyacinth:
> >> >>> When I use my own scripts or from another person, I save them in the
> >> >>> same
> >> >>> folder from where the data is read by GrADS, that is win32 folder.
> >> >>> I hope this help you.
> >> >>> Bye,
> >> >>> Hern?n
> >> >>>
> >> >>>
> >> >>> 2009/9/13 Hyacinth Cyprain Nnamchi < hc.nnamchi at lasg.iap.ac.cn >
> >> >>>
> >> >>>
> >> >>> Dear Colleagues,
> >> >>>
> >> >>> I am using GrADS 2.0.a5.oga.5 from the Opengrads download page (
> >> >>> http://sourceforge.net/projects/opengrads/files/ ) on MS Windows.I
> >> >>> notice
> >> >>> that it does not recognise the in-built .gs files like cbar.gs ,
> >> >>> cbarn.gs
> >> >>> etc, although I have confirmed that they are in the "scripts" file.
> >> >>>
> >> >>> Does anyone know what could be wrong, where should I place the .gs
> >> >>> files?
> >> >>>
> >> >>>
> >> >>> Thanks,
> >> >>> hyacinth
> >> >>>
> >> >>>
> >> >>>
> >> >>>
> >> >>> --
> >> >>>
> >> >>> Hyacinth C. Nnamchi
> >> >>> TWAS-CAS Fellow
> >> >>> State Key Laboratory of Numerical Modeling for
> >> >>> Atmospheric Sciences and Geophysical Fluid Dynamics (LASG)
> >> >>> Institute of Atmospheric Physics (IAP)
> >> >>> Chinese Academy of Sciences (CAS)
> >> >>> P.O.Box 9804, Beijing 100029, China
> >> >>> Tel: +86-13488719702
> >> >>> Fax: +86-10-82995172
> >> >>> E-mail:hc.nnamchi at lasg.iap.ac.cn<E-mail%3Ahc.nnamchi at lasg.iap.ac.cn>
> >> >>>
> >> >>>
> >> >>>
> >> >>> ??????? ?????????? ??
> >> >>
> >> >
> >> >
> >
> >
>
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From munia_c at YAHOO.CO.IN  Thu Sep 24 05:44:41 2009
From: munia_c at YAHOO.CO.IN (tanusri chakraborty)
Date: Thu, 24 Sep 2009 02:44:41 -0700
Subject: grads script
Message-ID: <THU.24.SEP.2009.024441.0700.>

sir/madam,
? I am doing research in IITM,Pune,India. I want do some ploting on grads.. the
problem is that I want to open more than two nc file which contaning same variable say
OLR. so i want to average that variable from those different file ?grid wise and plot
one average graph.
? ? ? ? ? Thanking you.
? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? Tanusri Chakraborty
? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? Research Fellow
? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? IITM,Pune
--





      Try the new Yahoo! India Homepage. Click here. http://in.yahoo.com/trynew
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From sushantpuranik at GMAIL.COM  Thu Sep 24 06:23:43 2009
From: sushantpuranik at GMAIL.COM (sushant puranik)
Date: Thu, 24 Sep 2009 15:53:43 +0530
Subject: grads script
In-Reply-To: <691960.26863.qm@web8314.mail.in.yahoo.com>
Message-ID: <THU.24.SEP.2009.155343.0530.>

try this
d (ave(var,t=1,t=ending time,interval)+ave(var,t=2,t=ending
time,interval))/2




On Thu, Sep 24, 2009 at 3:14 PM, tanusri chakraborty <munia_c at yahoo.co.in>wrote:

> sir/madam,
>   I am doing research in IITM,Pune,India. I want do some ploting on grads.
> the
> problem is that I want to open more than two nc file which contaning same
> variable say
> OLR. so i want to average that variable from those different file  grid
> wise and plot
> one average graph.
>           Thanking you.
>                                                   Tanusri Chakraborty
>                                                   Research Fellow
>                                                   IITM,Pune
> --
>
>
> ------------------------------
> Yahoo! India has a new look. Take a sneak peek<http://in.rd.yahoo.com/tagline_metro_2/*http://in.yahoo.com/trynew>
> .
>
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From Isabella.Bovolo at NEWCASTLE.AC.UK  Thu Sep 24 08:14:47 2009
From: Isabella.Bovolo at NEWCASTLE.AC.UK (Isabella Bovolo)
Date: Thu, 24 Sep 2009 13:14:47 +0100
Subject: Template files
In-Reply-To: <72e8bd3d0909240323v6110c1cbib8929bd3d3d45711@mail.gmail.com>
Message-ID: <THU.24.SEP.2009.131447.0100.>

Dear Grads users,

I am trying to use a template file so that I can do monthly averages of
daily data held in individual files but I cannot seem to plot any of the
individual files (and therefore cannot do averaging) as they do not open
correctly. The filenames I have are of the type: gpfs1958010100cp_24h.grb.
Grads appears to be trying to open the template filename and I get the
error below. Do you have any suggestions please? Am I using the wrong
commands? (Apologies if this is a simple question).

ga-> set t 1
Time values set: 1958:1:1:0 1958:1:1:0
ga-> d cp
Low Level I/O Error:  Read error on data file
   Data file name = gpfs%y4%m2%d200cp_24h.ctl
   Error reading 360 bytes at location 0
Data Request Error:  Error for variable 'cp'
   Error ocurred at column 1
DISPLAY error:  Invalid expression
   Expression = cp


My template file is the following:

DSET ^gpfs%y4%m2%d2%h2cp_24h.grbA
OPTIONS template
undef 9.999E+20
xdef 360 linear 0.000000 1.000000
ydef 181 linear -90.000000 1
zdef 1 linear 1 1
TDEF 5 LINEAR 00Z1Jan1958 1dy
vars 1
cp  0 143,1,0 Convective precipitation (accum.) (m)
ENDVARS

Many thanks,

Isabella

-------
Dr. C. Isabella Bovolo

Email:  Isabella.Bovolo at ncl.ac.uk
Tel:    +44 191 222 8599
Fax:    +44 191 222 6669
School of Civil Engineering and Geosciences,
Newcastle University, NE1 7RU, England, UK


From oscar at CENPAT.EDU.AR  Thu Sep 24 08:50:05 2009
From: oscar at CENPAT.EDU.AR (Oscar Andres Frumento)
Date: Thu, 24 Sep 2009 09:50:05 -0300
Subject: Template files
In-Reply-To: <Pine.SOC.4.62.0909241251270.27706@finan.ncl.ac.uk>
Message-ID: <THU.24.SEP.2009.095005.0300.>

Isabella,

try to rename your "template" file as follows:

gpfs%y4%m2%d200cp_24h.grb

your time step is day, so hour field shoul be fixed.

hope this help,

regards,

oscar

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From claudiomet at GMAIL.COM  Thu Sep 24 09:06:16 2009
From: claudiomet at GMAIL.COM (claudio cortes)
Date: Thu, 24 Sep 2009 09:06:16 -0400
Subject: grads script
In-Reply-To: <691960.26863.qm@web8314.mail.in.yahoo.com>
Message-ID: <THU.24.SEP.2009.090616.0400.>

Hi Tanusri !

When you work with multiple files, each variable of a file can be poltted
adding a point and a numbre of a file opened, for example:

If you wanto to plot geopotential heights of a file 1 just do:

d hgt.1

If you want to plot geopotential heights of file 2 in level 500 Hpa just do:

d hgt.2(lev=500)

If you want to plot geopoential heights of file 3 in level 500 and time 2
justo do:

d hgt.3(lev=500,time=2)

If you want to plot gepotential heights of file 4 in level 500, time 3, lon
-33 and lat -70, justo do:

d hgt.4(lev=500, time=3, lon=-33,lat=-70)

If you want to plot gepotential heights of file 5 in level 500, time 3 and
the lon and lat applied to file 4, justo do:

d hgt.5(lev=500, time=3, lon.4,lat.4)

Best regards Tanusri


2009/9/24 tanusri chakraborty <munia_c at yahoo.co.in>

> sir/madam,
>   I am doing research in IITM,Pune,India. I want do some ploting on grads.
> the
> problem is that I want to open more than two nc file which contaning same
> variable say
> OLR. so i want to average that variable from those different file  grid
> wise and plot
> one average graph.
>           Thanking you.
>                                                   Tanusri Chakraborty
>                                                   Research Fellow
>                                                   IITM,Pune
> --
>
>
> ------------------------------
> Yahoo! India has a new look. Take a sneak peek<http://in.rd.yahoo.com/tagline_metro_2/*http://in.yahoo.com/trynew>
> .
>



--
Claudio Cortes
+56 (2) 2994121

Meteorologo
Laboratorio de Meteorologia y Calidad de Aire
Centro Nacional del Medio Ambiente (CENMA)
--------------------------------------------------------------------------------------

Claudio Cortes
+56 (2) 2994121

Meteorologist
Meteorology and Air Quality Labs
National Enviroment Center, Chile (CENMA)
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From oscar at CENPAT.EDU.AR  Thu Sep 24 10:02:55 2009
From: oscar at CENPAT.EDU.AR (Oscar Andres Frumento)
Date: Thu, 24 Sep 2009 11:02:55 -0300
Subject: Template files
In-Reply-To: <Pine.SOC.4.62.0909241251270.27706@finan.ncl.ac.uk>
Message-ID: <THU.24.SEP.2009.110255.0300.>

Isabella,

what is the original ctl file?
how many files do you have to open?
can you display cp variable opening only 1 file?

oscar


From Isabella.Bovolo at NEWCASTLE.AC.UK  Thu Sep 24 10:25:56 2009
From: Isabella.Bovolo at NEWCASTLE.AC.UK (Isabella Bovolo)
Date: Thu, 24 Sep 2009 15:25:56 +0100
Subject: Template files
In-Reply-To: <4ABB51DF.1689.A12C7A@oscar.cenpat.edu.ar>
Message-ID: <THU.24.SEP.2009.152556.0100.>

Dear Oscar,

thank you for your reply.

I have the following files to use as an example (currently 5 days but I
would like to be able to repeat the procedure for several months/years of
data):

gpfs1958010100cp_24h.ctl
gpfs1958010100cp_24h.grb
gpfs1958010100cp_24h.grb.idx
gpfs1958010200cp_24h.ctl
gpfs1958010200cp_24h.grb
gpfs1958010200cp_24h.grb.idx
gpfs1958010300cp_24h.ctl
gpfs1958010300cp_24h.grb
gpfs1958010300cp_24h.grb.idx
gpfs1958010400cp_24h.ctl
gpfs1958010400cp_24h.grb
gpfs1958010400cp_24h.grb.idx
gpfs1958010500cp_24h.ctl
gpfs1958010500cp_24h.grb
gpfs1958010500cp_24h.grb.idx

The control file of gpfs1958010100cp_24h.ctl is:
dset ^gpfs1958101000cp_24h.grb
index ^gpfs1958101000cp_24h.grb.idx
undef 9.999E+20
title ^gpfs1958101000cp_24h.grb
* produced by /usr/local/badcdat/bin/badcGrib.py
dtype grib 255
options yrev
ydef 181 linear -90.000000 1
xdef 360 linear 0.000000 1.000000
tdef 1 linear 00Z11oct1958 1dy
zdef 1 linear 1 1
vars 1
cp  0 143,1,0 Convective precipitation (accum.) (m)
ENDVARS


I can open each file individually and plot the contents of each file:

ga-> query file 1
File 1 : ^gpfs1958010200cp_24h.grb
   Descriptor: gpfs1958010200cp_24h.ctl
   Binary: gpfs1958010200cp_24h.grb
   Type = Gridded
   Xsize = 360  Ysize = 181  Zsize = 1  Tsize = 1  Esize = 1
   Number of Variables = 1
      cp  0  143  Convective precipitation (accum.) (m)
ga-> d cp.1
Contouring: 0 to 0.07 interval 0.01

But when I try to open more than one file at once, I cannot seem to be
able to plot any content except that of the first file:

File 1 : ^gpfs1958010200cp_24h.grb
   Descriptor: gpfs1958010200cp_24h.ctl
   Binary: gpfs1958010200cp_24h.grb
   Type = Gridded
   Xsize = 360  Ysize = 181  Zsize = 1  Tsize = 1  Esize = 1
   Number of Variables = 1
      cp  0  143  Convective precipitation (accum.) (m)
ga-> q file 2
File 2 : ^gpfs1958010300cp_24h.grb
   Descriptor: gpfs1958010300cp_24h.ctl
   Binary: gpfs1958010300cp_24h.grb
   Type = Gridded
   Xsize = 360  Ysize = 181  Zsize = 1  Tsize = 1  Esize = 1
   Number of Variables = 1
      cp  0  143  Convective precipitation (accum.) (m)
ga-> d cp.1
Contouring: 0 to 0.07 interval 0.01
ga-> d cp.2
Data Request Warning:  Request is completely outside file limits
   Entire grid contents are set to missing data
   Grid limits of file:     X = 1 360  Y = 1 181  Z = 1 1  T = 1 1  E = 1 1
   Grid limits of request:  X = 1 361  Y = 1 181  Z = 1 1  T = 0 0  E = 1 1
   Warning issued for variable = cp.2
Cannot contour grid - all undefined values

(Note I can plot the second file if I open just that file:)
ga-> open gpfs1958010300cp_24h
Scanning description file:  gpfs1958010300cp_24h
Data file gpfs1958010300cp_24h.grb is open as file 1
LON set to 0 360
LAT set to -90 90
LEV set to 1 1
Time values set: 1958:1:4:0 1958:1:4:0
E set to 1 1
ga-> d cp
Contouring: 0 to 0.07 interval 0.01


Isabella


On Thu, 24 Sep 2009, Oscar Andres Frumento wrote:

> Isabella,
>
> what is the original ctl file?
> how many files do you have to open?
> can you display cp variable opening only 1 file?
>
> oscar
>


From oscar at CENPAT.EDU.AR  Thu Sep 24 13:19:53 2009
From: oscar at CENPAT.EDU.AR (Oscar Andres Frumento)
Date: Thu, 24 Sep 2009 14:19:53 -0300
Subject: Template files
In-Reply-To: <Pine.SOC.4.62.0909241506210.27706@finan.ncl.ac.uk>
Message-ID: <THU.24.SEP.2009.141953.0300.>

Isabella,

it seems that the actual ctl file miss several lines; furthermore, you should
have to build an "idx" file from the "new" ctl file using the command
"gribmap".

DSET ^gpfs%y4%m2%d2%h2cp_24h.grbA
OPTIONS template
undef 9.999E+20
xdef 360 linear 0.000000 1.000000
ydef 181 linear -90.000000 1
zdef 1 linear 1 1
TDEF 5 LINEAR 00Z1Jan1958 1dy
vars 1
cp  0 143,1,0 Convective precipitation (accum.) (m)
ENDVARS

your ctl file have to look like the following one:

dset ^gpfs%y4&m2%d200cp_24h.grb
index ^template_grb.idx
undef 9.999E+20
title ^gpfs1958101000cp_24h.grb
* produced by /usr/local/badcdat/bin/badcGrib.py
dtype grib 255
options yrev template
ydef 181 linear -90.000000 1
xdef 360 linear 0.000000 1.000000
tdef nnn linear 00Z11oct1958 1dy
zdef 1 linear 1 1
vars 1
cp  0 143,1,0 Convective precipitation (accum.) (m)
ENDVARS

nnn is the number of times you are going to use in the complete set of files,
ie, one year of data nnn = 365.

oscar

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From gzepka at DGE.INPE.BR  Thu Sep 24 14:03:29 2009
From: gzepka at DGE.INPE.BR (Gisele Zepka)
Date: Thu, 24 Sep 2009 15:03:29 -0300
Subject: working with 2 different files
Message-ID: <THU.24.SEP.2009.150329.0300.>

Hello users

I want to plot the difference between two temperature fields from
different .ctl files (file 1: resolution = 20 km; longitude range = 277
to 334.2 degrees; latitude range = -50.2 to 12.2; file 2: resolution =
10 km; longitude range = -50.159 to -44.075 degrees; latitude range =
-25.031 to -20.783). My first problem is to set the longitude for the
file 1, which must be defined in terms of a difference from 360 degrees,
while the file 2 mantains its coordinates. When I set the longitude, how
can I specify which file I am altering it? In order to calculate the
temperature difference I extrapolate the resolution of the file 2 to 20
km using the regrid function. In this moment lots of errors appear. I am
trying to do something like that:

ga-> d tp2m.1 - regrid2(tmp2m.2,0.1962580,0.1962580,bl)

Please, any help will be good.
Thanks.
Gisele

--
Msc. Gisele dos Santos Zepka
Atmospheric Electricity Group (ELAT)
National Institute for Space Research (INPE)
Av. dos Astronautas, 1758
S?o Jos? dos Campos/ SP/ Brazil
CEP 12245-970
Phone ++55(12)39456841


From tatiane.felinto at GMAIL.COM  Thu Sep 24 15:13:12 2009
From: tatiane.felinto at GMAIL.COM (tatiane felinto)
Date: Thu, 24 Sep 2009 16:13:12 -0300
Subject: lats4d?
Message-ID: <THU.24.SEP.2009.161312.0300.>

Hello users

I have a file with resolution of 1.125X1.125 with 23 levels and
spacing in x between 140W to 30E and 90S and between the 30N. I want
to do a regridding to a grid  0.25X0.25 and reduce the number of
levels. I tried using lats4d and gave the following command:


gradsnc -blc 'run lats4d.gs -i /media/TATIANE/era40/temp/t_1980.ctl -o
 t25_1980 -format grads_grib -mxtimes 1464 -levs 1000 850 -time
00z01jan1980 18z31jan1980 -de era025.ctl -func re(@,0.25,0.25,bl) -v
-q'


This command runs without errors, creating the .grb,. ctl and
.gmp.....  However, when viewing the picture,  note that the
information is not correct. Does anyone have any idea how can I solve
this problem? Below the two ctl used on the command line and the
message of the grads. Attached is a picture generated with the result
of regrid.

Ah ... I am using the grads1.9.0-rc1

Thanks

Tatiane Felinto

 t_1980.ctl

 dset ^t_1980.grb
 title temperature
 undef 1e+20
 dtype grib
 index ^t_1980.gmp
 xdef 188 linear -180.000000 1.125000
 ydef 108 linear -90.000000 1.125000
 zdef 23 levels
 1000 925 850 775 700 600 500 400 300 250
 200 150 100 70 50 30 20 10 7 5
 3 2 1
 tdef 1464 linear 0Z1jan1980  6hr
 vars 1
 t        23    1,100 ** (profile) Temperature K []
 endvars

 *************************************************************************************

 era025.ctl

 DSET nofile
 title Template GrADS for regridding
 options template
 undef 1e+20
 xdef 301 linear -95 0.25
 ydef 301 linear -60  0.25
 zdef   1 levels  1000
 tdef 124 linear 00z1jan1980 6hr
 vars 1
 var      0 0        generic sfc variable
 endvars

 ***************************************************************************************************
 Grid Analysis and Display System (GrADS) Version 1.9.0-rc1
 Copyright (c) 1988-2007 by Brian Doty and IGES
 Center for Ocean-Land-Atmosphere Studies (COLA)
 Institute for Global Environment and Society (IGES)
 GrADS comes with ABSOLUTELY NO WARRANTY
 See file COPYRIGHT for more information

 Config: v1.9.0-rc1 32-bit little-endian readline sdf/xdf netcdf lats
 athena printim

 Issue 'q config' command for more information.

 Format error in user defined function table:
  Processing function name:
  File name is: /usr/local/grads/udf/udft
 GX Package Initialization: Size = 11 8.5
 Running in Batch mode
 lats4d: Version 2.0.1 of 12 Jan 2009
 No hardcopy metafile open
 All files closed; all defined objects released
 All GrADS attributes have been reinitialized
 lats4d: Data file is
 File 1 : file created by grads using lats4d available from
 http://dao.gsfc.nasa.gov/software/grads/lats4d/
  Descriptor: /media/TATIANE/era40/temp/t_1980.ctl
  Binary: /media/TATIANE/era40/temp/t_1980.grb
  Type = Gridded
  Xsize = 188  Ysize = 108  Zsize = 23  Tsize = 1464
  Number of Variables = 1
    t 23 1 ** (profile) Temperature K []

 lats4d: Dimension environment file is
 File 2 : Template GrADS for regridding
  Descriptor: era025.ctl
  Binary: nofile
  Type = Gridded
  Xsize = 301  Ysize = 301  Zsize = 1  Tsize = 124
  Number of Variables = 1
    var 0 0 generic sfc variable

 lats4d: creating LATS PARAMETER TABLE file .grads.lats.table
 lats4d: time range: 00Z01JAN1980 18Z31JAN1980 by 1, delta t: 6 hourly
 lats4d: vertical levels:  1000 850
 lats4d: using PRESSURE for vertical coordinate
 lats4d: latitudinal  range: -60 15
 lats4d: longitudinal range: -95 -20
 lats4d: Function expression: re(@,0.25,0.25,bl)
 lats4d: upper air variables:  t
 lats4d: writing to grads_grib file t25_1980.grb on 00Z01JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 06Z01JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 12Z01JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 18Z01JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 00Z02JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 06Z02JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 12Z02JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 18Z02JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 00Z03JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 06Z03JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 12Z03JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 18Z03JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 00Z04JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 06Z04JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 12Z04JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 18Z04JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 00Z05JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 06Z05JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 12Z05JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 18Z05JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 00Z06JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 06Z06JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 12Z06JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 18Z06JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 00Z07JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 06Z07JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 12Z07JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 18Z07JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 00Z08JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 06Z08JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 12Z08JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 18Z08JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 00Z09JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 06Z09JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 12Z09JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 18Z09JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 00Z10JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 06Z10JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 12Z10JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 18Z10JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 00Z11JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 06Z11JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 12Z11JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 18Z11JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 00Z12JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 06Z12JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 12Z12JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 18Z12JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 00Z13JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 06Z13JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 12Z13JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 18Z13JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 00Z14JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 06Z14JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 12Z14JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 18Z14JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 00Z15JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 06Z15JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 12Z15JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 18Z15JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 00Z16JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 06Z16JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 12Z16JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 18Z16JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 00Z17JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 06Z17JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 12Z17JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 18Z17JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 00Z18JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 06Z18JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 12Z18JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 18Z18JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 00Z19JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 06Z19JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 12Z19JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 18Z19JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 00Z20JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 06Z20JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 12Z20JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 18Z20JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 00Z21JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 06Z21JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 12Z21JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 18Z21JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 00Z22JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 06Z22JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 12Z22JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 18Z22JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 00Z23JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 06Z23JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 12Z23JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 18Z23JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 00Z24JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 06Z24JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 12Z24JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 18Z24JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 00Z25JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 06Z25JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 12Z25JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 18Z25JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 00Z26JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 06Z26JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 12Z26JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 18Z26JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 00Z27JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 06Z27JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 12Z27JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 18Z27JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 00Z28JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 06Z28JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 12Z28JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 18Z28JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 00Z29JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 06Z29JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 12Z29JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 18Z29JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 00Z30JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 06Z30JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 12Z30JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 18Z30JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 00Z31JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 06Z31JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 12Z31JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 18Z31JAN1980
 t=0, month is <jan

 gribmap:  Scanning binary GRIB file(s):
 gribmap:  Opening GRIB file t25_1980.grb
 gribmap:  Reached EOF
 gribmap:  Writing the map...

 LATS_GRIB: SUCCESS -- gribmap for GrADS/VCS seems to have worked...

 lats4d: created grads_grib file t25_1980.grb
 lats4d: exiting from GrADS...
 No hardcopy metafile open
 GX package terminated
-------------- next part --------------
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From ela at COLA.IGES.ORG  Thu Sep 24 18:27:21 2009
From: ela at COLA.IGES.ORG (Eric Altshuler)
Date: Thu, 24 Sep 2009 18:27:21 -0400
Subject: grads script
In-Reply-To: <1922585125.88741253831202379.JavaMail.root@mail.iges.org>
Message-ID: <THU.24.SEP.2009.182721.0400.>

The last command given below is not valid:

d hgt.5(lev=500, time=3, lon.4,lat.4)

First: the time specification should be t=3, not time=3. Using "time=<value>" requires an absolute time specification, such as "time=00z24sep2009".
Second: lon.4 and lat.4 are not dimension specifications. The command should be something like this:

d hgt.5(lev=500,t=3,lon=<longitude value>,lat=<latitude value>)

----- Original Message -----
From: "claudio cortes" <claudiomet at GMAIL.COM>
To: GRADSUSR at LIST.CINECA.IT
Sent: Thursday, September 24, 2009 9:06:16 AM GMT -05:00 US/Canada Eastern
Subject: Re: grads script

Hi Tanusri !

When you work with multiple files, each variable of a file can be poltted adding a point and a numbre of a file opened, for example:

If you wanto to plot geopotential heights of a file 1 just do:

d hgt.1

If you want to plot geopotential heights of file 2 in level 500 Hpa just do:

d hgt.2(lev=500)

If you want to plot geopoential heights of file 3 in level 500 and time 2 justo do:

d hgt.3(lev=500,time=2)

If you want to plot gepotential heights of file 4 in level 500, time 3, lon -33 and lat -70, justo do:

d hgt.4(lev=500, time=3, lon=-33,lat=-70)

If you want to plot gepotential heights of file 5 in level 500, time 3 and the lon and lat applied to file 4, justo do:

d hgt.5(lev=500, time=3, lon.4,lat.4)

Best regards Tanusri



2009/9/24 tanusri chakraborty < munia_c at yahoo.co.in >



sir/madam,
I am doing research in IITM,Pune,India. I want do some ploting on grads. the
problem is that I want to open more than two nc file which contaning same variable say
OLR. so i want to average that variable from those different file grid wise and plot
one average graph.
Thanking you.
Tanusri Chakraborty
Research Fellow
IITM,Pune
--






Yahoo! India has a new look. Take a sneak peek .


--
Claudio Cortes
+56 (2) 2994121

Meteorologo
Laboratorio de Meteorologia y Calidad de Aire
Centro Nacional del Medio Ambiente (CENMA)
--------------------------------------------------------------------------------------

Claudio Cortes
+56 (2) 2994121

Meteorologist
Meteorology and Air Quality Labs
National Enviroment Center, Chile (CENMA)


From ela at COLA.IGES.ORG  Thu Sep 24 18:41:57 2009
From: ela at COLA.IGES.ORG (Eric Altshuler)
Date: Thu, 24 Sep 2009 18:41:57 -0400
Subject: lats4d?
In-Reply-To: <181917450.88791253832092637.JavaMail.root@mail.iges.org>
Message-ID: <THU.24.SEP.2009.184157.0400.>

Hello Tatiane,

There is one very significant error message that you may have missed:

...
 Format error in user defined function table:
  Processing function name:
  File name is: /usr/local/grads/udf/udft
...

I am not familiar with setting up UDFs but the presence of this error message means something is going wrong.

Best regards,

Eric L. Altshuler
Assistant Research Scientist
Center for Ocean-Land-Atmosphere Studies
4041 Powder Mill Road, Suite 302
Calverton, MD 20705-3106
USA

E-mail: ela at cola.iges.org
Phone: (301) 902-1257
Fax: (301) 595-9793

----- Original Message -----
From: "tatiane felinto" <tatiane.felinto at GMAIL.COM>
To: GRADSUSR at LIST.CINECA.IT
Sent: Thursday, September 24, 2009 3:13:12 PM GMT -05:00 US/Canada Eastern
Subject: lats4d?

Hello users

I have a file with resolution of 1.125X1.125 with 23 levels and
spacing in x between 140W to 30E and 90S and between the 30N. I want
to do a regridding to a grid  0.25X0.25 and reduce the number of
levels. I tried using lats4d and gave the following command:


gradsnc -blc 'run lats4d.gs -i /media/TATIANE/era40/temp/t_1980.ctl -o
 t25_1980 -format grads_grib -mxtimes 1464 -levs 1000 850 -time
00z01jan1980 18z31jan1980 -de era025.ctl -func re(@,0.25,0.25,bl) -v
-q'


This command runs without errors, creating the .grb,. ctl and
.gmp.....  However, when viewing the picture,  note that the
information is not correct. Does anyone have any idea how can I solve
this problem? Below the two ctl used on the command line and the
message of the grads. Attached is a picture generated with the result
of regrid.

Ah ... I am using the grads1.9.0-rc1

Thanks

Tatiane Felinto

 t_1980.ctl

 dset ^t_1980.grb
 title temperature
 undef 1e+20
 dtype grib
 index ^t_1980.gmp
 xdef 188 linear -180.000000 1.125000
 ydef 108 linear -90.000000 1.125000
 zdef 23 levels
 1000 925 850 775 700 600 500 400 300 250
 200 150 100 70 50 30 20 10 7 5
 3 2 1
 tdef 1464 linear 0Z1jan1980  6hr
 vars 1
 t        23    1,100 ** (profile) Temperature K []
 endvars

 *************************************************************************************

 era025.ctl

 DSET nofile
 title Template GrADS for regridding
 options template
 undef 1e+20
 xdef 301 linear -95 0.25
 ydef 301 linear -60  0.25
 zdef   1 levels  1000
 tdef 124 linear 00z1jan1980 6hr
 vars 1
 var      0 0        generic sfc variable
 endvars

 ***************************************************************************************************
 Grid Analysis and Display System (GrADS) Version 1.9.0-rc1
 Copyright (c) 1988-2007 by Brian Doty and IGES
 Center for Ocean-Land-Atmosphere Studies (COLA)
 Institute for Global Environment and Society (IGES)
 GrADS comes with ABSOLUTELY NO WARRANTY
 See file COPYRIGHT for more information

 Config: v1.9.0-rc1 32-bit little-endian readline sdf/xdf netcdf lats
 athena printim

 Issue 'q config' command for more information.

 Format error in user defined function table:
  Processing function name:
  File name is: /usr/local/grads/udf/udft
 GX Package Initialization: Size = 11 8.5
 Running in Batch mode
 lats4d: Version 2.0.1 of 12 Jan 2009
 No hardcopy metafile open
 All files closed; all defined objects released
 All GrADS attributes have been reinitialized
 lats4d: Data file is
 File 1 : file created by grads using lats4d available from
 http://dao.gsfc.nasa.gov/software/grads/lats4d/
  Descriptor: /media/TATIANE/era40/temp/t_1980.ctl
  Binary: /media/TATIANE/era40/temp/t_1980.grb
  Type = Gridded
  Xsize = 188  Ysize = 108  Zsize = 23  Tsize = 1464
  Number of Variables = 1
    t 23 1 ** (profile) Temperature K []

 lats4d: Dimension environment file is
 File 2 : Template GrADS for regridding
  Descriptor: era025.ctl
  Binary: nofile
  Type = Gridded
  Xsize = 301  Ysize = 301  Zsize = 1  Tsize = 124
  Number of Variables = 1
    var 0 0 generic sfc variable

 lats4d: creating LATS PARAMETER TABLE file .grads.lats.table
 lats4d: time range: 00Z01JAN1980 18Z31JAN1980 by 1, delta t: 6 hourly
 lats4d: vertical levels:  1000 850
 lats4d: using PRESSURE for vertical coordinate
 lats4d: latitudinal  range: -60 15
 lats4d: longitudinal range: -95 -20
 lats4d: Function expression: re(@,0.25,0.25,bl)
 lats4d: upper air variables:  t
 lats4d: writing to grads_grib file t25_1980.grb on 00Z01JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 06Z01JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 12Z01JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 18Z01JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 00Z02JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 06Z02JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 12Z02JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 18Z02JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 00Z03JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 06Z03JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 12Z03JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 18Z03JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 00Z04JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 06Z04JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 12Z04JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 18Z04JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 00Z05JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 06Z05JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 12Z05JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 18Z05JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 00Z06JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 06Z06JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 12Z06JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 18Z06JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 00Z07JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 06Z07JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 12Z07JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 18Z07JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 00Z08JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 06Z08JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 12Z08JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 18Z08JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 00Z09JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 06Z09JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 12Z09JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 18Z09JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 00Z10JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 06Z10JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 12Z10JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 18Z10JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 00Z11JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 06Z11JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 12Z11JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 18Z11JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 00Z12JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 06Z12JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 12Z12JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 18Z12JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 00Z13JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 06Z13JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 12Z13JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 18Z13JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 00Z14JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 06Z14JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 12Z14JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 18Z14JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 00Z15JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 06Z15JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 12Z15JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 18Z15JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 00Z16JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 06Z16JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 12Z16JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 18Z16JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 00Z17JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 06Z17JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 12Z17JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 18Z17JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 00Z18JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 06Z18JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 12Z18JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 18Z18JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 00Z19JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 06Z19JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 12Z19JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 18Z19JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 00Z20JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 06Z20JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 12Z20JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 18Z20JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 00Z21JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 06Z21JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 12Z21JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 18Z21JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 00Z22JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 06Z22JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 12Z22JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 18Z22JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 00Z23JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 06Z23JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 12Z23JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 18Z23JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 00Z24JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 06Z24JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 12Z24JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 18Z24JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 00Z25JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 06Z25JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 12Z25JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 18Z25JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 00Z26JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 06Z26JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 12Z26JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 18Z26JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 00Z27JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 06Z27JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 12Z27JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 18Z27JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 00Z28JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 06Z28JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 12Z28JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 18Z28JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 00Z29JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 06Z29JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 12Z29JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 18Z29JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 00Z30JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 06Z30JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 12Z30JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 18Z30JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 00Z31JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 06Z31JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 12Z31JAN1980
 lats4d: writing to grads_grib file t25_1980.grb on 18Z31JAN1980
 t=0, month is <jan

 gribmap:  Scanning binary GRIB file(s):
 gribmap:  Opening GRIB file t25_1980.grb
 gribmap:  Reached EOF
 gribmap:  Writing the map...

 LATS_GRIB: SUCCESS -- gribmap for GrADS/VCS seems to have worked...

 lats4d: created grads_grib file t25_1980.grb
 lats4d: exiting from GrADS...
 No hardcopy metafile open
 GX package terminated


From claudiomet at GMAIL.COM  Thu Sep 24 18:45:05 2009
From: claudiomet at GMAIL.COM (claudio cortes)
Date: Thu, 24 Sep 2009 18:45:05 -0400
Subject: grads script
In-Reply-To: <1030401041.88761253831241353.JavaMail.root@mail.iges.org>
Message-ID: <THU.24.SEP.2009.184505.0400.>

oh! thats right, thanks for the correction.

2009/9/24 Eric Altshuler <ela at cola.iges.org>:
> The last command given below is not valid:
>
> d hgt.5(lev=500, time=3, lon.4,lat.4)
>
> First: the time specification should be t=3, not time=3. Using "time=<value>" requires an absolute time specification, such as "time=00z24sep2009".
> Second: lon.4 and lat.4 are not dimension specifications. The command should be something like this:
>
> d hgt.5(lev=500,t=3,lon=<longitude value>,lat=<latitude value>)
>
> ----- Original Message -----
> From: "claudio cortes" <claudiomet at GMAIL.COM>
> To: GRADSUSR at LIST.CINECA.IT
> Sent: Thursday, September 24, 2009 9:06:16 AM GMT -05:00 US/Canada Eastern
> Subject: Re: grads script
>
> Hi Tanusri !
>
> When you work with multiple files, each variable of a file can be poltted adding a point and a numbre of a file opened, for example:
>
> If you wanto to plot geopotential heights of a file 1 just do:
>
> d hgt.1
>
> If you want to plot geopotential heights of file 2 in level 500 Hpa just do:
>
> d hgt.2(lev=500)
>
> If you want to plot geopoential heights of file 3 in level 500 and time 2 justo do:
>
> d hgt.3(lev=500,time=2)
>
> If you want to plot gepotential heights of file 4 in level 500, time 3, lon -33 and lat -70, justo do:
>
> d hgt.4(lev=500, time=3, lon=-33,lat=-70)
>
> If you want to plot gepotential heights of file 5 in level 500, time 3 and the lon and lat applied to file 4, justo do:
>
> d hgt.5(lev=500, time=3, lon.4,lat.4)
>
> Best regards Tanusri
>
>
>
> 2009/9/24 tanusri chakraborty < munia_c at yahoo.co.in >
>
>
>
> sir/madam,
> I am doing research in IITM,Pune,India. I want do some ploting on grads. the
> problem is that I want to open more than two nc file which contaning same variable say
> OLR. so i want to average that variable from those different file grid wise and plot
> one average graph.
> Thanking you.
> Tanusri Chakraborty
> Research Fellow
> IITM,Pune
> --
>
>
>
>
>
>
> Yahoo! India has a new look. Take a sneak peek .
>
>
> --
> Claudio Cortes
> +56 (2) 2994121
>
> Meteorologo
> Laboratorio de Meteorologia y Calidad de Aire
> Centro Nacional del Medio Ambiente (CENMA)
> --------------------------------------------------------------------------------------
>
> Claudio Cortes
> +56 (2) 2994121
>
> Meteorologist
> Meteorology and Air Quality Labs
> National Enviroment Center, Chile (CENMA)
>



--
Claudio Cortes
+56 (2) 2994121

Meteorologo
Laboratorio de Meteorologia y Calidad de Aire
Centro Nacional del Medio Ambiente (CENMA)
--------------------------------------------------------------------------------------

Claudio Cortes
+56 (2) 2994121

Meteorologist
Meteorology and Air Quality Labs
National Enviroment Center, Chile (CENMA)


From yi_zhou01 at YAHOO.CA  Thu Sep 24 21:25:53 2009
From: yi_zhou01 at YAHOO.CA (Emily)
Date: Thu, 24 Sep 2009 18:25:53 -0700
Subject: create a ctl for a subset of NARR data
Message-ID: <THU.24.SEP.2009.182553.0700.>

Hi group member,

Could you please help me to solve the problem?
> My grads version: Grads2.0a3 under Window XP 2002
>
>I download a subset data of NARR A (every 3 hours time step per day) from:
http://nomads.ncdc.noaa.gov/cgi-bin/ncdc-ui/define-collection.pl?model_sys=narr&model_name=narr-a&grid_name=221
In order to simplification, I just download one variable (hgtpre), and one level (500hpa), when I use g2ctl.pl to create .ctl file, it shows that:
either ls.grb is missing or not a grib file or wgrib2 is not on your path or wgrib2 is too old.

Please tell me how to deal with this problem, thanks a lot.

BTW, I attached my grib data as well, please try it for me.

Best regards,

Emily,

York University, Toronto, Canada

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From ela at COLA.IGES.ORG  Thu Sep 24 22:46:30 2009
From: ela at COLA.IGES.ORG (Eric Altshuler)
Date: Thu, 24 Sep 2009 22:46:30 -0400
Subject: create a ctl for a subset of NARR data
In-Reply-To: <477904021.89191253846505889.JavaMail.root@mail.iges.org>
Message-ID: <THU.24.SEP.2009.224630.0400.>

Hi Emily,

Your file is a GRIB1 file, but you are trying to use GRIB2 tools (g2ctl and wgrib2). You need grib2ctl.pl (download it from http://www.cpc.ncep.noaa.gov/products/wesley/grib2ctl.html) and wgrib (the wgrib executable is included in GrADS binary distributions, see http://grads.iges.org/grads/downloads.html, or you can build it from source which is at http://www.cpc.ncep.noaa.gov/products/wesley/wgrib.html).

Best regards,

Eric L. Altshuler
Assistant Research Scientist
Center for Ocean-Land-Atmosphere Studies
4041 Powder Mill Road, Suite 302
Calverton, MD 20705-3106
USA

E-mail: ela at cola.iges.org
Phone: (301) 902-1257
Fax: (301) 595-9793

----- Original Message -----
From: "Emily" <yi_zhou01 at YAHOO.CA>
To: GRADSUSR at LIST.CINECA.IT
Sent: Thursday, September 24, 2009 9:25:53 PM GMT -05:00 US/Canada Eastern
Subject: create a ctl for a subset of NARR data

Hi group member,

Could you please help me to solve the problem?
> My grads version: Grads2.0a3 under Window XP 2002
>
>I download a subset data of NARR A (every 3 hours time step per day) from:
http://nomads.ncdc.noaa.gov/cgi-bin/ncdc-ui/define-collection.pl?model_sys=narr&model_name=narr-a&grid_name=221
In order to simplification, I just download one variable (hgtpre), and one level (500hpa), when I use g2ctl.pl to create .ctl file, it shows that:
either ls.grb is missing or not a grib file or wgrib2 is not on your path or wgrib2 is too old.

Please tell me how to deal with this problem, thanks a lot.

BTW, I attached my grib data as well, please try it for me.

Best regards,

Emily,

York University, Toronto, Canada


From lbyerle at YAHOO.COM  Thu Sep 24 23:28:23 2009
From: lbyerle at YAHOO.COM (Lee Byerle)
Date: Thu, 24 Sep 2009 20:28:23 -0700
Subject: lats4d?
In-Reply-To: <2027142107.88811253832117102.JavaMail.root@mail.iges.org>
Message-ID: <THU.24.SEP.2009.202823.0700.>

While the udft may not be pointed to correctly, from my experience
using lats4d it is a stand-alone script, not dependent upon udf in
udf table.

Lee
On Sep 24, 2009, at 3:41 PM, Eric Altshuler wrote:

> Hello Tatiane,
>
> There is one very significant error message that you may have missed:
>
> ...
>  Format error in user defined function table:
>   Processing function name:
>   File name is: /usr/local/grads/udf/udft
> ...
>
> I am not familiar with setting up UDFs but the presence of this
> error message means something is going wrong.
>
> Best regards,
>
> Eric L. Altshuler
> Assistant Research Scientist
> Center for Ocean-Land-Atmosphere Studies
> 4041 Powder Mill Road, Suite 302
> Calverton, MD 20705-3106
> USA
>
> E-mail: ela at cola.iges.org
> Phone: (301) 902-1257
> Fax: (301) 595-9793
>
> ----- Original Message -----
> From: "tatiane felinto" <tatiane.felinto at GMAIL.COM>
> To: GRADSUSR at LIST.CINECA.IT
> Sent: Thursday, September 24, 2009 3:13:12 PM GMT -05:00 US/Canada
> Eastern
> Subject: lats4d?
>
> Hello users
>
> I have a file with resolution of 1.125X1.125 with 23 levels and
> spacing in x between 140W to 30E and 90S and between the 30N. I want
> to do a regridding to a grid  0.25X0.25 and reduce the number of
> levels. I tried using lats4d and gave the following command:
>
>
> gradsnc -blc 'run lats4d.gs -i /media/TATIANE/era40/temp/t_1980.ctl -o
>  t25_1980 -format grads_grib -mxtimes 1464 -levs 1000 850 -time
> 00z01jan1980 18z31jan1980 -de era025.ctl -func re(@,0.25,0.25,bl) -v
> -q'
>
>
> This command runs without errors, creating the .grb,. ctl and
> .gmp.....  However, when viewing the picture,  note that the
> information is not correct. Does anyone have any idea how can I solve
> this problem? Below the two ctl used on the command line and the
> message of the grads. Attached is a picture generated with the result
> of regrid.
>
> Ah ... I am using the grads1.9.0-rc1
>
> Thanks
>
> Tatiane Felinto
>
>  t_1980.ctl
>
>  dset ^t_1980.grb
>  title temperature
>  undef 1e+20
>  dtype grib
>  index ^t_1980.gmp
>  xdef 188 linear -180.000000 1.125000
>  ydef 108 linear -90.000000 1.125000
>  zdef 23 levels
>  1000 925 850 775 700 600 500 400 300 250
>  200 150 100 70 50 30 20 10 7 5
>  3 2 1
>  tdef 1464 linear 0Z1jan1980  6hr
>  vars 1
>  t        23    1,100 ** (profile) Temperature K []
>  endvars
>
>
> **********************************************************************
> ***************
>
>  era025.ctl
>
>  DSET nofile
>  title Template GrADS for regridding
>  options template
>  undef 1e+20
>  xdef 301 linear -95 0.25
>  ydef 301 linear -60  0.25
>  zdef   1 levels  1000
>  tdef 124 linear 00z1jan1980 6hr
>  vars 1
>  var      0 0        generic sfc variable
>  endvars
>
>
> **********************************************************************
> *****************************
>  Grid Analysis and Display System (GrADS) Version 1.9.0-rc1
>  Copyright (c) 1988-2007 by Brian Doty and IGES
>  Center for Ocean-Land-Atmosphere Studies (COLA)
>  Institute for Global Environment and Society (IGES)
>  GrADS comes with ABSOLUTELY NO WARRANTY
>  See file COPYRIGHT for more information
>
>  Config: v1.9.0-rc1 32-bit little-endian readline sdf/xdf netcdf lats
>  athena printim
>
>  Issue 'q config' command for more information.
>
>  Format error in user defined function table:
>   Processing function name:
>   File name is: /usr/local/grads/udf/udft
>  GX Package Initialization: Size = 11 8.5
>  Running in Batch mode
>  lats4d: Version 2.0.1 of 12 Jan 2009
>  No hardcopy metafile open
>  All files closed; all defined objects released
>  All GrADS attributes have been reinitialized
>  lats4d: Data file is
>  File 1 : file created by grads using lats4d available from
>  http://dao.gsfc.nasa.gov/software/grads/lats4d/
>   Descriptor: /media/TATIANE/era40/temp/t_1980.ctl
>   Binary: /media/TATIANE/era40/temp/t_1980.grb
>   Type = Gridded
>   Xsize = 188  Ysize = 108  Zsize = 23  Tsize = 1464
>   Number of Variables = 1
>     t 23 1 ** (profile) Temperature K []
>
>  lats4d: Dimension environment file is
>  File 2 : Template GrADS for regridding
>   Descriptor: era025.ctl
>   Binary: nofile
>   Type = Gridded
>   Xsize = 301  Ysize = 301  Zsize = 1  Tsize = 124
>   Number of Variables = 1
>     var 0 0 generic sfc variable
>
>  lats4d: creating LATS PARAMETER TABLE file .grads.lats.table
>  lats4d: time range: 00Z01JAN1980 18Z31JAN1980 by 1, delta t: 6 hourly
>  lats4d: vertical levels:  1000 850
>  lats4d: using PRESSURE for vertical coordinate
>  lats4d: latitudinal  range: -60 15
>  lats4d: longitudinal range: -95 -20
>  lats4d: Function expression: re(@,0.25,0.25,bl)
>  lats4d: upper air variables:  t
>  lats4d: writing to grads_grib file t25_1980.grb on 00Z01JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 06Z01JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 12Z01JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 18Z01JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 00Z02JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 06Z02JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 12Z02JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 18Z02JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 00Z03JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 06Z03JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 12Z03JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 18Z03JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 00Z04JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 06Z04JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 12Z04JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 18Z04JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 00Z05JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 06Z05JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 12Z05JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 18Z05JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 00Z06JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 06Z06JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 12Z06JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 18Z06JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 00Z07JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 06Z07JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 12Z07JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 18Z07JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 00Z08JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 06Z08JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 12Z08JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 18Z08JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 00Z09JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 06Z09JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 12Z09JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 18Z09JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 00Z10JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 06Z10JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 12Z10JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 18Z10JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 00Z11JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 06Z11JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 12Z11JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 18Z11JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 00Z12JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 06Z12JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 12Z12JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 18Z12JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 00Z13JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 06Z13JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 12Z13JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 18Z13JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 00Z14JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 06Z14JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 12Z14JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 18Z14JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 00Z15JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 06Z15JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 12Z15JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 18Z15JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 00Z16JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 06Z16JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 12Z16JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 18Z16JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 00Z17JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 06Z17JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 12Z17JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 18Z17JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 00Z18JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 06Z18JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 12Z18JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 18Z18JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 00Z19JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 06Z19JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 12Z19JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 18Z19JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 00Z20JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 06Z20JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 12Z20JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 18Z20JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 00Z21JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 06Z21JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 12Z21JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 18Z21JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 00Z22JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 06Z22JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 12Z22JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 18Z22JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 00Z23JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 06Z23JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 12Z23JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 18Z23JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 00Z24JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 06Z24JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 12Z24JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 18Z24JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 00Z25JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 06Z25JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 12Z25JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 18Z25JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 00Z26JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 06Z26JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 12Z26JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 18Z26JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 00Z27JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 06Z27JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 12Z27JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 18Z27JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 00Z28JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 06Z28JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 12Z28JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 18Z28JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 00Z29JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 06Z29JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 12Z29JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 18Z29JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 00Z30JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 06Z30JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 12Z30JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 18Z30JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 00Z31JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 06Z31JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 12Z31JAN1980
>  lats4d: writing to grads_grib file t25_1980.grb on 18Z31JAN1980
>  t=0, month is <jan
>
>  gribmap:  Scanning binary GRIB file(s):
>  gribmap:  Opening GRIB file t25_1980.grb
>  gribmap:  Reached EOF
>  gribmap:  Writing the map...
>
>  LATS_GRIB: SUCCESS -- gribmap for GrADS/VCS seems to have worked...
>
>  lats4d: created grads_grib file t25_1980.grb
>  lats4d: exiting from GrADS...
>  No hardcopy metafile open
>  GX package terminated


From sushantpuranik at GMAIL.COM  Fri Sep 25 03:35:01 2009
From: sushantpuranik at GMAIL.COM (sushant puranik)
Date: Fri, 25 Sep 2009 13:05:01 +0530
Subject: How to make composite plots
In-Reply-To: <200909222020444681350@163.com>
Message-ID: <FRI.25.SEP.2009.130501.0530.>

Thank you for hint.
I tried
d (ave(var,t=1,t=360,12)+ave(var,t=2,t=360,12)+ave(var,t=3,t=360,12))/3
after that i checked the result it gives average of three days only not for
three months.

Since i has ECMWF data at 6 hour interval in the monthly form (each file
contain 1 month data).
So i tried as per your suggestion but it gives ave of first three days of
first file only and not for the three years file.

Also i am facing the following problem

[Sushant at localhost ~]$ gradsnc

Grid Analysis and Display System (GrADS) Version 1.8SL11
Copyright (c) 1988-2001 by Brian Doty
Center for Ocean-Land-Atmosphere Studies
Institute for Global Environment and Society
All Rights Reserved

Config: v1.8SL11 32-bit little-endian readline sdf/xdf netcdf lats printim

Issue 'q config' command for more information.

Landscape mode? (no for portrait):
GX Package Initialization: Size = 11 8.5
ga-> c
*ga-> sdfopen /home/Sushant/Desktop/ECMWFdata/May2002data/u.nc *
Scanning self-describing file:  /home/Sushant/Desktop/ECMWFdata/May2002data/
u.nc
Found 1 data variables in SDF file.
Found displayable variable u with 29 levels in SDF file.
SDF file /home/Sushant/Desktop/ECMWFdata/May2002data/u.nc is open as file 1
LON set to 0 360
LAT set to -90 90
LEV set to 50 50
Time values set: 2002:5:1:0 2002:5:1:0
*ga-> sdfopen /home/Sushant/Desktop/ECMWFdata/May2001data/u.nc *
Scanning self-describing file:  /home/Sushant/Desktop/ECMWFdata/May2001data/
u.nc
Found 1 data variables in SDF file.
Found displayable variable u with 29 levels in SDF file.
SDF file /home/Sushant/Desktop/ECMWFdata/May2001data/u.nc is open as file 2
ga-> set lev 1000
LEV set to 1000 1000
ga-> d u
Contouring: -20 to 20 interval 5
ga-> c
ga-> d u.2
*Data Request Warning:  Request beyond file limits
  Entire grid contents are set to missing data
  Dimension ranges are:  X = 1 240  Y = 1 121  Z = 29 29  T = 1461 124
  Warning issued for variable = u.2
Cannot contour grid - all undefined values *
ga-> c

Now can you please solve this problem.



Thank you again


Sushant


On Tue, Sep 22, 2009 at 5:50 PM, Yan Libin <zjuyanlibin at 163.com> wrote:

>  d ave(var,t=1,t=360,12)
>
> d (ave(var,t=1,t=360,12)+ave(var,t=2,t=360,12)+ave(var,t=3,t=360,12))/3
>
>
> 2009-09-22
> ------------------------------
>  Yan Libin
> ------------------------------
> *????* sushant puranik
> *?????* 2009-09-22  20:18:04
> *????* GRADSUSR
> *???*
> *???* How to make composite plots
>  Hello sir
> I wish to make composite plot for 20 year period for each month (monthly
> mean composite) and also want to make composite for season (seasonal
> composite)(Dec-March).
> Can you please give me help in this regard.
>
>
> Thanking you
>
> Sushant
>
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From akhtarme at YAHOO.COM  Fri Sep 25 06:06:01 2009
From: akhtarme at YAHOO.COM (Muhammad AKHTAR)
Date: Fri, 25 Sep 2009 03:06:01 -0700
Subject: Regarding .CDF file display in grads
In-Reply-To: <122503.31373.qm@web112418.mail.gq1.yahoo.com>
Message-ID: <FRI.25.SEP.2009.030601.0700.>

Hi Dear,
Mr. Dr. Muhammad Akhtar has been died on 02.009.2009. he was on bed for the last four months. May his soul be in peace. plz pray for his soul.
Regards

--- On Mon, 8/31/09, mizanur rahman <mrahman426 at YAHOO.COM> wrote:

> From: mizanur rahman <mrahman426 at YAHOO.COM>
> Subject: Regarding .CDF file display in grads
> To: GRADSUSR at LIST.CINECA.IT
> Date: Monday, August 31, 2009, 1:36 PM
>
>
>
>
>
>
>
>
>
>
>
> Dear
> sir
> I would like to introduce myself to you. I am a researcher
> in
> the field of Meteorology. I downloaded CRU data from
> ICTP web
> site that is linked with the CRU web site. This CRU data is
> CRUPRE.CDF fomat. How do display .CRF file in Grads?
> I know how to display .nc file in grads but I tried several
> times to
> display in grads to .CDF file but I could not success.
> Please let
> me know how to display .CDF file in grads.
>
> Best
> wishes
>
> Rahman
>
> Bangladesh
>
>
>
>
>
>


From koletsis at METEO.NOA.GR  Fri Sep 25 09:48:01 2009
From: koletsis at METEO.NOA.GR (Ioannis Koletsis)
Date: Fri, 25 Sep 2009 16:48:01 +0300
Subject: Plotting station data
Message-ID: <FRI.25.SEP.2009.164801.0300.>

Dear Grads users,

I want to plot barbs from a .txt file with the following structure:

lat | lon | u | v | date

Which is the easiest way to crete the .dat file in order to plot the wind barbs?

I have already a fortan file and the relative .ctl file, which created by Dr. Wang Xiucheng (attached files), but I have problem in compilation process, due to the recordtype=stream command
Also, I have f90 and f77 platform......

Can you please give me any help??

Thanks in advance 

Ioannis

 
-----------------------------------------------------------------------------------              
Ioannis Koletsis
National Observatory of Athens
Institute for Environmental Research
Lofos Koufou
15236-Penteli
Athens-Greece
Tel: (+30) 210 8109140
e-mail: koletsis at meteo.noa.gr
           ikoletsis at gmail.com
-----------------------------------------------------------------------------------------------------
http://www.noa.gr/forecast (NOA Weather forecasts in English)
http://www.meteo.gr (NOA Weather forecasts in Greek)
-----------------------------------------------------------------------------------------------------
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From Isabella.Bovolo at NEWCASTLE.AC.UK  Fri Sep 25 10:32:21 2009
From: Isabella.Bovolo at NEWCASTLE.AC.UK (Isabella Bovolo)
Date: Fri, 25 Sep 2009 15:32:21 +0100
Subject: Entire Grid Undefined
In-Reply-To: <FBBB02CE1DBB4C5A871CA801B91EE9F2@Ioannis>
Message-ID: <FRI.25.SEP.2009.153221.0100.>

Dear all,

I am trying to open multiple grib files (on a regular grid) and display
the contents using grads but it seems I can only display the contents of
the first file that is opened. Trying to display other files results in an
error, 'Cannot contour grid - all undefined values' and the display screen
reads 'Entire Grid Undefined'.

I've checked that all the files display correctly on their own (ie if
opened as the first file). Also I've managed to open multiple .nc files
correctly. Can anyone help with this error please?

I am using grads on cygwin and the following is an example of my session.
$ grads

Grid Analysis and Display System (GrADS) Version 2.0.a7
Copyright (c) 1988-2008 by Brian Doty and the
Institute for Global Environment and Society (IGES)
GrADS comes with ABSOLUTELY NO WARRANTY
See file COPYRIGHT for more information

Config: v2.0.a7 little-endian readline printim grib2 netcdf hdf4-sds hdf5
athena geotiff
Issue 'q config' command for more information.
Landscape mode? ('n' for portrait):
GX Package Initialization: Size = 11 8.5
ga-> open gpfs196401modacp.ctl
Scanning description file:  gpfs196401modacp.ctl
Data file gpfs196401modacp.grb is open as file 1
LON set to 0 360
LAT set to -90 90
LEV set to 1 1
Time values set: 1964:1:15:12 1964:1:15:12
E set to 1 1
ga-> open gpfs196402modacp.ctl
Scanning description file:  gpfs196402modacp.ctl
Data file gpfs196402modacp.grb is open as file 2
ga-> q file 1
File 1 : ^gpfs196401modacp.grb
   Descriptor: gpfs196401modacp.ctl
   Binary: gpfs196401modacp.grb
   Type = Gridded
   Xsize = 360  Ysize = 181  Zsize = 1  Tsize = 1  Esize = 1
   Number of Variables = 1
      cp  0  143  Convective precipitation (accum.) (m)
ga-> q file 2
File 2 : ^gpfs196402modacp.grb
   Descriptor: gpfs196402modacp.ctl
   Binary: gpfs196402modacp.grb
   Type = Gridded
   Xsize = 360  Ysize = 181  Zsize = 1  Tsize = 1  Esize = 1
   Number of Variables = 1
      cp  0  143  Convective precipitation (accum.) (m)
ga-> d cp.1
Contouring: -0 to 0.005 interval 0.0005
ga-> d cp.2
Data Request Warning:  Request is completely outside file limits
   Entire grid contents are set to missing data
   Grid limits of file:     X = 1 360  Y = 1 181  Z = 1 1  T = 1 1  E = 1 1
   Grid limits of request:  X = 1 361  Y = 1 181  Z = 1 1  T = 0 0  E = 1 1
   Warning issued for variable = cp.2
Cannot contour grid - all undefined values

Thank you for any help.

Best wishes,

Isabella


-------
Dr. C. Isabella Bovolo

Email:  Isabella.Bovolo at ncl.ac.uk
Tel:    +44 191 222 8599
Fax:    +44 191 222 6669
School of Civil Engineering and Geosciences,
Newcastle University, NE1 7RU, England, UK


From jma at COLA.IGES.ORG  Fri Sep 25 10:45:54 2009
From: jma at COLA.IGES.ORG (Jennifer Adams)
Date: Fri, 25 Sep 2009 10:45:54 -0400
Subject: Entire Grid Undefined
In-Reply-To: <Pine.SOC.4.62.0909251517140.27706@finan.ncl.ac.uk>
Message-ID: <FRI.25.SEP.2009.104554.0400.>


On Sep 25, 2009, at 10:32 AM, Isabella Bovolo wrote:

>
>  Grid limits of file:     X = 1 360  Y = 1 181  Z = 1 1  T = 1 1  E
> = 1 1
>  Grid limits of request:  X = 1 361  Y = 1 181  Z = 1 1  T = 0 0  E
> = 1 1

Your time dimension is set to the first time of the first file, but
your second file is not defined at that time.

An excerpt from the doc page http://iges.org/grads/gadoc/variable.html :
"When you specify a dimension in grid units, GrADS always converts it
to world coordinates. In general, this conversion is done using the
scaling of the default file. The only exception to this rule is in
this case, when a grid coordinate (x, y, z, t, or e) is supplied
within a dimexpr as part of a variable specification. In the case of
this special exception, the conversion is done using the scaling for
the file that variable is to be taken from."

ga-> d cp.2(t=1)

should give you the display you're looking for.

Your life would be a lot easier if you aggregate these data files
together into a single using templating.
http://iges.org/grads/gadoc/templates.html


--
Jennifer M. Adams
IGES/COLA
4041 Powder Mill Road, Suite 302
Calverton, MD 20705
jma at cola.iges.org



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From Isabella.Bovolo at NEWCASTLE.AC.UK  Fri Sep 25 10:51:58 2009
From: Isabella.Bovolo at NEWCASTLE.AC.UK (Isabella Bovolo)
Date: Fri, 25 Sep 2009 15:51:58 +0100
Subject: Entire Grid Undefined
In-Reply-To: <6AD2C784-E3DD-40B5-8528-DA0DABE1CF2D@cola.iges.org>
Message-ID: <FRI.25.SEP.2009.155158.0100.>

Dear Jennifer,

thank you very much for your useful reply.

Isabella

-------
Dr. C. Isabella Bovolo

Email:  Isabella.Bovolo at ncl.ac.uk
Tel:    +44 191 222 8599
Fax:    +44 191 222 6669
School of Civil Engineering and Geosciences,
Newcastle University, NE1 7RU, England, UK


On Fri, 25 Sep 2009, Jennifer Adams wrote:

>
> On Sep 25, 2009, at 10:32 AM, Isabella Bovolo wrote:
>
>>
>>  Grid limits of file:     X = 1 360  Y = 1 181  Z = 1 1  T = 1 1  E
>> = 1 1
>>  Grid limits of request:  X = 1 361  Y = 1 181  Z = 1 1  T = 0 0  E
>> = 1 1
>
> Your time dimension is set to the first time of the first file, but
> your second file is not defined at that time.
>
> An excerpt from the doc page http://iges.org/grads/gadoc/variable.html :
> "When you specify a dimension in grid units, GrADS always converts it
> to world coordinates. In general, this conversion is done using the
> scaling of the default file. The only exception to this rule is in
> this case, when a grid coordinate (x, y, z, t, or e) is supplied
> within a dimexpr as part of a variable specification. In the case of
> this special exception, the conversion is done using the scaling for
> the file that variable is to be taken from."
>
> ga-> d cp.2(t=1)
>
> should give you the display you're looking for.
>
> Your life would be a lot easier if you aggregate these data files
> together into a single using templating.
> http://iges.org/grads/gadoc/templates.html
>
>
> --
> Jennifer M. Adams
> IGES/COLA
> 4041 Powder Mill Road, Suite 302
> Calverton, MD 20705
> jma at cola.iges.org
>
>
>
>


From Charles.Seman at NOAA.GOV  Fri Sep 25 18:59:17 2009
From: Charles.Seman at NOAA.GOV (Charles Seman)
Date: Fri, 25 Sep 2009 18:59:17 -0400
Subject: How to make composite plots
In-Reply-To: <72e8bd3d0909250035j7be991e9o291d0941ef44aea7@mail.gmail.com>
Message-ID: <FRI.25.SEP.2009.185917.0400.>

Sushant,

Please see http://grads.iges.org/grads/gadoc/gradcomdmodify.html which
shows how to make a climatology, and then if desired, to modify it for
calculating anomalies...

I hope this helps,
Chuck

sushant puranik wrote:
> Thank you for hint.
> I tried
> d (ave(var,t=1,t=360,12)+ave(var,t=2,t=360,12)+ave(var,t=3,t=360,12))/3
> after that i checked the result it gives average of three days only
> not for three months.
>
> Since i has ECMWF data at 6 hour interval in the monthly form (each
> file contain 1 month data).
> So i tried as per your suggestion but it gives ave of first three days
> of first file only and not for the three years file.
>
> Also i am facing the following problem
>
> [Sushant at localhost ~]$ gradsnc
>
> Grid Analysis and Display System (GrADS) Version 1.8SL11
> Copyright (c) 1988-2001 by Brian Doty
> Center for Ocean-Land-Atmosphere Studies
> Institute for Global Environment and Society
> All Rights Reserved
>
> Config: v1.8SL11 32-bit little-endian readline sdf/xdf netcdf lats printim
>
> Issue 'q config' command for more information.
>
> Landscape mode? (no for portrait):
> GX Package Initialization: Size = 11 8.5
> ga-> c
> *ga-> sdfopen /home/Sushant/Desktop/ECMWFdata/May2002data/u.nc
> <http://u.nc> *
> Scanning self-describing file:
> /home/Sushant/Desktop/ECMWFdata/May2002data/u.nc <http://u.nc>
> Found 1 data variables in SDF file.
> Found displayable variable u with 29 levels in SDF file.
> SDF file /home/Sushant/Desktop/ECMWFdata/May2002data/u.nc
> <http://u.nc> is open as file 1
> LON set to 0 360
> LAT set to -90 90
> LEV set to 50 50
> Time values set: 2002:5:1:0 2002:5:1:0
> *ga-> sdfopen /home/Sushant/Desktop/ECMWFdata/May2001data/u.nc
> <http://u.nc> *
> Scanning self-describing file:
> /home/Sushant/Desktop/ECMWFdata/May2001data/u.nc <http://u.nc>
> Found 1 data variables in SDF file.
> Found displayable variable u with 29 levels in SDF file.
> SDF file /home/Sushant/Desktop/ECMWFdata/May2001data/u.nc
> <http://u.nc> is open as file 2
> ga-> set lev 1000
> LEV set to 1000 1000
> ga-> d u
> Contouring: -20 to 20 interval 5
> ga-> c
> ga-> d u.2
> *Data Request Warning: Request beyond file limits
> Entire grid contents are set to missing data
> Dimension ranges are: X = 1 240 Y = 1 121 Z = 29 29 T = 1461 124
> Warning issued for variable = u.2
> Cannot contour grid - all undefined values *
> ga-> c
>
> Now can you please solve this problem.
>
>
>
> Thank you again
>
>
> Sushant
>
>
> On Tue, Sep 22, 2009 at 5:50 PM, Yan Libin <zjuyanlibin at 163.com
> <mailto:zjuyanlibin at 163.com>> wrote:
>
>     d ave(var,t=1,t=360,12)
>     d
>     (ave(var,t=1,t=360,12)+ave(var,t=2,t=360,12)+ave(var,t=3,t=360,12))/3
>     2009-09-22
>     ------------------------------------------------------------------------
>     Yan Libin
>     ------------------------------------------------------------------------
>     *????* sushant puranik
>     *?????* 2009-09-22 20:18:04
>     *????* GRADSUSR
>     *???*
>     *???* How to make composite plots
>     Hello sir
>     I wish to make composite plot for 20 year period for each month
>     (monthly mean composite) and also want to make composite for
>     season (seasonal composite)(Dec-March).
>     Can you please give me help in this regard.
>
>
>     Thanking you
>
>     Sushant
>
>

--

Please note that Charles.Seman at noaa.gov should be considered my NOAA
email address, not cjs at gfdl.noaa.gov.

********************************************************************
 Charles Seman                                Charles.Seman at noaa.gov
 U.S. Department of Commerce / NOAA / OAR
 Geophysical Fluid Dynamics Laboratory         voice: (609) 452-6547
 201 Forrestal Road                              fax: (609) 987-5063
 Princeton, NJ  08540-6649            http://www.gfdl.noaa.gov/~cjs/
********************************************************************

"The contents of this message are mine personally and do not necessarily
reflect any position of the Government or NOAA."


From spc_meteor at YAHOO.COM.BR  Fri Sep 25 23:16:59 2009
From: spc_meteor at YAHOO.COM.BR (Saulo Carvalho)
Date: Fri, 25 Sep 2009 20:16:59 -0700
Subject: Res: Doing templates from .nc files
In-Reply-To: <4ABAABAA.9070504@ec.gc.ca>
Message-ID: <FRI.25.SEP.2009.201659.0700.>

Ajaya,

Now it's working.

Thanks!
 ________________________________________
Saulo Carvalho


SEMA
Diretoria de Recursos H?dricos




________________________________
De: Ajaya Mohan <Ajaya.Mohan at EC.GC.CA>
Para: GRADSUSR at LIST.CINECA.IT
Enviadas: Quarta-feira, 23 de Setembro de 2009 20:13:46
Assunto: Re: Doing templates from .nc files

Try this, I am using Version 1.9b4, it should work....


dset ^avhrr-only-v2.%y4%m2%d2.nc
options template
dtype netcdf
undef -9.96921e+36 _FillValue
unpack scale_factor add_offset
title Daily-OI-V2, final, Data (Ship, Buoy, AVHRR, GSFC-ice)
xdef 1440 linear  0.125 0.25
ydef 720 linear -89.875 0.25
zdef 1 linear 1 1
tdef 40 linear 00Z10SEP1982 1dy
vars 4
sst=>sst   0 t,z,y,x Daily sea surface temperature
anom=>anom  0 t,z,y,x Daily sea surface temperature anomalies
err=>err   0 t,z,y,x Estimated error standard deviation of analysed_sst
ice=>ice   0 t,z,y,x Sea ice concentration
endvars

ajaya

Saulo Carvalho wrote:
> Hello everybody,
>
>
> I'm working with avhrr data files available in
> ftp://eclipse.ncdc.noaa.gov/pub/OI-daily-v2/NetCDF/. For my
> surprise, when I make a .ctl file in order to template the .nc's,
> it doesn' t work. As these files has 4 variables, it may have a problem
> in making the template.
>
>
> Is there an alternative way to solve this problem?
>
>
> ________________________________________
> Saulo Carvalho
>
>
> SEMA
> Diretoria de Recursos H?dricos



      ____________________________________________________________________________________
Veja quais s?o os assuntos do momento no Yahoo! +Buscados
http://br.maisbuscados.yahoo.com
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From arabonis at YAHOO.COM  Sat Sep 26 11:21:34 2009
From: arabonis at YAHOO.COM (Jean Pierre Arabonis)
Date: Sat, 26 Sep 2009 08:21:34 -0700
Subject: Nomads GDS
In-Reply-To: <545524.38284.qm@web110707.mail.gq1.yahoo.com>
Message-ID: <SAT.26.SEP.2009.082134.0700.>

Good Day all 

?? Has anyone else been having problems with the nomads GDS server:
http://nomads.ncep.noaa.gov:9090/dods/gfs_hd/
For the last few days I have been having problems accessing it with both grads 1.8 and 2.6 where I can see the file etc but when I actiually try to display something it freezes.
?I have contacted them but their helpdesk seems to think its fine.
?Other gds sites work.

Any Ideas
? Jean Pierre 




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From arlindo.dasilva at GMAIL.COM  Sat Sep 26 18:18:15 2009
From: arlindo.dasilva at GMAIL.COM (Arlindo da Silva)
Date: Sat, 26 Sep 2009 15:18:15 -0700
Subject: GS files in GrADS 2.0.a5.oga.5
In-Reply-To: <10088079.281711253674386356.JavaMail.coremail@mail3.iap.ac.cn>
Message-ID: <SAT.26.SEP.2009.151815.0700.>

On Tue, Sep 22, 2009 at 7:53 PM, Hyacinth Cyprain Nnamchi <
hc.nnamchi at lasg.iap.ac.cn> wrote:

>
> Dear Arlindo,
> The script file started working when I changed the environment variables:
> GADDIR and GASCRP. They were on "dat" and "lib" as shown on the GrADS page (
> http://www.iges.org/grads/downloads.html) because I uninstalled ver 1.8
> before installing GrADS 2.0.a5.oga.5.
>
> What made the script files to start working on my system (Windos XP) was
> changing:
>  GADDIR to  C:\OpenGrADS\Contents\Resources\SupportData
>  GASCRP to  C:\OpenGrADS\Contents\Resources\Scripts
>
>
This makes sense. As I said, no need to define these as it will detect it
automatically (unless you have it set, in which case it will use what you
supply.)

    Arlindo


--
Arlindo da Silva
dasilva at alum.mit.edu
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From yi_zhou01 at YAHOO.CA  Mon Sep 28 13:47:40 2009
From: yi_zhou01 at YAHOO.CA (Emily)
Date: Mon, 28 Sep 2009 10:47:40 -0700
Subject: display hgt.200812.nc
Message-ID: <MON.28.SEP.2009.104740.0700.>

Hi group members,

I face a problem when I display 500 hpa geopotential height chart, it shows wrong data.

My gs file is:
'reinit'
'open d:\gradsfile\ncdata\hgt200812.ddf'
'set grads off'
'set grid off'
'set lon 220 310'
'set lat 20 60'
'set lev 500'
'set time 09z28dec2008'
'd hgt'
====================
My ddf is as below:
DSET d:\gradsfile\ncdata\hgt.200812.nc
DTYPE netcdf
TITLE NARR 4D field Lambert Conformal Conic projection
UNDEF 32766 missing_value
UNPACK scale_factor add_offset
PDEF 349 277 lcc 1 -145.5 1 1 50 50 -107 32463.41 32463.41
XDEF 615 linear 150 0.3333
YDEF 255 linear 2 0.3333
ZDEF 29 levels 1000, 975, 950, 925, 900, 875, 850, 825, 800, 775, 750, 725, 700,
?650, 600, 550, 500, 450, 400, 350, 300, 275, 250, 225, 200, 175, 150, 125, 100
tdef 248 linear 00:00z01dec2008 3hr
vars 3
hgt 29 t,z,y,x? geopotential_height
lat=>glat 0 y,x Latitude
lon=>glon 0 y,x Longitude
endvars
=============
My grads version: Grads 2.0 a3,
window xp

I notice that the contours laber values are like -25900, -25800..... I think the value is wrong. Then I check ncdump information, the hgt value from ncdump also shows like -25900,.....

Is there some one knowing what wrong with this?Thanks very much.

Regards,

Emily
York University, Toronto, Canada.
?

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From klevey at CUSTOMWEATHER.COM  Mon Sep 28 13:59:05 2009
From: klevey at CUSTOMWEATHER.COM (Kevin M Levey)
Date: Mon, 28 Sep 2009 10:59:05 -0700
Subject: display hgt.200812.nc (netcdf offsets and scaling factors)
In-Reply-To: <483436.43653.qm@web88106.mail.re2.yahoo.com>
Message-ID: <MON.28.SEP.2009.105905.0700.>

MON 28SEP09: 1055PDT

Dear Emily,

Not sure what dataset you are using, but here is a ncdump of a NCEP
Reanalysis netcdf file of SLP:

  ncdump -c slp.2009.nc
netcdf slp.2009 {
dimensions:
         lon = 144 ;
         lat = 73 ;
         time = UNLIMITED ; // (261 currently)
variables:
         float lat(lat) ;
                 lat:units = "degrees_north" ;
                 lat:actual_range = 90.f, -90.f ;
                 lat:long_name = "Latitude" ;
         float lon(lon) ;
                 lon:units = "degrees_east" ;
                 lon:long_name = "Longitude" ;
                 lon:actual_range = 0.f, 357.5f ;
         double time(time) ;
                 time:units = "hours since 1-1-1 00:00:0.0" ;
                 time:long_name = "Time" ;
                 time:actual_range = 17601816., 17608056. ;
                 time:delta_t = "0000-00-01 00:00:00" ;
                 time:avg_period = "0000-00-01 00:00:00" ;
         short slp(time, lat, lon) ;
                 slp:long_name = "mean Daily Sea Level Pressure" ;
                 slp:valid_range = 87000.f, 115000.f ;
                 slp:actual_range = 93602.5f, 110540.f ;
                 slp:units = "Pascals" ;
                 slp:add_offset = 119765.f ;
                 slp:scale_factor = 1.f ;
                 slp:missing_value = 32766s ;
                 slp:precision = 0s ;
                 slp:least_significant_digit = -1s ;
                 slp:GRIB_id = 2s ;
                 slp:GRIB_name = "PRMSL" ;
                 slp:var_desc = "Sea Level Pressure\n",
                         "P" ;
                 slp:dataset = "NCEP Reanalysis Daily Averages" ;
                 slp:level_desc = "Sea Level\n",
                         "I" ;
                 slp:statistic = "Mean\n",
                         "M" ;
                 slp:parent_stat = "Individual Obs\n",
                         "I" ;

// global attributes:
                 :Conventions = "COARDS" ;
                 :title = "mean daily NMC reanalysis (2009)" ;
                 :history = "created 2009/01 by Hoop (netCDF2.3)" ;
                 :description = "Data is from NMC initialized
reanalysis\n",
                         "(4x/day).  It consists of most variables
interpolated to\n",
                         "pressure surfaces from model (sigma)
surfaces." ;
                 :platform = "Model" ;

What one has to do to get the correct value is apply both the scale
factor and offset value to the data, so for example, if I wanted to
display SLP, I'd need to do this for example:


'define mslp1 = slp + 119765'

actual value = value * scaling factor + offset, in the example above,
the scaling factor is 1, hence I merely added the offset.

Your netcdf file probably has these values which you merely need to
apply as shown above.

Regards,

Kevin M Levey, MSc in Oceans and Atmospheric Sciences (University of
Cape Town)
Director of Meteorological Operations
CustomWeather, Inc.
San Francisco, California, USA

"Taking the World by Storm!"

http://www.customweather.com
http://www.myforecast.com
http://www.1stweather.com

cell: 415-794-0411
work: 415-777-3566
email: klevey at customweather.com

On Sep 28, 2009, at 09/28/09 - 10:47 AM, Emily wrote:

> Hi group members,
>
> I face a problem when I display 500 hpa geopotential height chart,
> it shows wrong data.
>
> My gs file is:
> 'reinit'
> 'open d:\gradsfile\ncdata\hgt200812.ddf'
> 'set grads off'
> 'set grid off'
> 'set lon 220 310'
> 'set lat 20 60'
> 'set lev 500'
> 'set time 09z28dec2008'
> 'd hgt'
> ====================
> My ddf is as below:
> DSET d:\gradsfile\ncdata\hgt.200812.nc
> DTYPE netcdf
> TITLE NARR 4D field Lambert Conformal Conic projection
> UNDEF 32766 missing_value
> UNPACK scale_factor add_offset
> PDEF 349 277 lcc 1 -145.5 1 1 50 50 -107 32463.41 32463.41
> XDEF 615 linear 150 0.3333
> YDEF 255 linear 2 0.3333
> ZDEF 29 levels 1000, 975, 950, 925, 900, 875, 850, 825, 800, 775,
> 750, 725, 700,
>  650, 600, 550, 500, 450, 400, 350, 300, 275, 250, 225, 200, 175,
> 150, 125, 100
> tdef 248 linear 00:00z01dec2008 3hr
> vars 3
> hgt 29 t,z,y,x  geopotential_height
> lat=>glat 0 y,x Latitude
> lon=>glon 0 y,x Longitude
> endvars
> =============
> My grads version: Grads 2.0 a3,
> window xp
>
> I notice that the contours laber values are like -25900, -25800.....
> I think the value is wrong. Then I check ncdump information, the hgt
> value from ncdump also shows like -25900,.....
>
> Is there some one knowing what wrong with this?Thanks very much.
>
> Regards,
>
> Emily
> York University, Toronto, Canada.
>
>

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From claudiomet at GMAIL.COM  Mon Sep 28 15:02:28 2009
From: claudiomet at GMAIL.COM (claudio cortes)
Date: Mon, 28 Sep 2009 15:02:28 -0400
Subject: display hgt.200812.nc
In-Reply-To: <483436.43653.qm@web88106.mail.re2.yahoo.com>
Message-ID: <MON.28.SEP.2009.150228.0400.>

try sdfopen instead open

2009/9/28 Emily <yi_zhou01 at yahoo.ca>

> Hi group members,
>
> I face a problem when I display 500 hpa geopotential height chart, it shows
> wrong data.
>
> My gs file is:
> 'reinit'
> 'open d:\gradsfile\ncdata\hgt200812.ddf'
> 'set grads off'
> 'set grid off'
> 'set lon 220 310'
> 'set lat 20 60'
> 'set lev 500'
> 'set time 09z28dec2008'
> 'd hgt'
> ====================
> My ddf is as below:
> DSET d:\gradsfile\ncdata\hgt.200812.nc
> DTYPE netcdf
> TITLE NARR 4D field Lambert Conformal Conic projection
> UNDEF 32766 missing_value
> UNPACK scale_factor add_offset
> PDEF 349 277 lcc 1 -145.5 1 1 50 50 -107 32463.41 32463.41
> XDEF 615 linear 150 0.3333
> YDEF 255 linear 2 0.3333
> ZDEF 29 levels 1000, 975, 950, 925, 900, 875, 850, 825, 800, 775, 750, 725,
> 700,
>  650, 600, 550, 500, 450, 400, 350, 300, 275, 250, 225, 200, 175, 150, 125,
> 100
> tdef 248 linear 00:00z01dec2008 3hr
> vars 3
> hgt 29 t,z,y,x  geopotential_height
> lat=>glat 0 y,x Latitude
> lon=>glon 0 y,x Longitude
> endvars
> =============
> My grads version: Grads 2.0 a3,
> window xp
>
> I notice that the contours laber values are like -25900, -25800..... I
> think the value is wrong. Then I check ncdump information, the hgt value
> from ncdump also shows like -25900,.....
>
> Is there some one knowing what wrong with this?Thanks very much.
>
> Regards,
>
> Emily
> York University, Toronto, Canada.
>
>
>


--
Claudio Cortes
+56 (2) 2994121

Meteorologo
Laboratorio de Meteorologia y Calidad de Aire
Centro Nacional del Medio Ambiente (CENMA)
--------------------------------------------------------------------------------------

Claudio Cortes
+56 (2) 2994121

Meteorologist
Meteorology and Air Quality Labs
National Enviroment Center, Chile (CENMA)
-------------- next part --------------
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From Javier.Corripio at UIBK.AC.AT  Mon Sep 28 15:03:50 2009
From: Javier.Corripio at UIBK.AC.AT (Javier G. Corripio)
Date: Mon, 28 Sep 2009 21:03:50 +0200
Subject: fwrite wrap data
Message-ID: <MON.28.SEP.2009.210350.0200.>

Dear all,

I would appreciate some advice with fwrite.

I am trying to write some data which is a subset of a larger grib.  It seems that the data is wrapped
around in a peculiar way when using fwrite.

Here I show and example for clarity, the topography of the Alps from the GFS (hgtsfc). When using
the data written by fwrite it will display with the eastern end on the northwestern corner

The ctl files seems to be OK, so I wonder if I failed to specify any settings for fwrite.

These are the commands:

open gfs.ctl
set lon 0 20
set lat 40 50
d hgtsfc;************** first map correct
set gxout fwrite
set fwrite alpsset.dat
d hgtsfc
disaple fwrite
reinit
open alpsset.ctl
d topo;**************** second map wrapped around


ctl file for subset:

ga-> q ctlinfo
dset alpsset.dat
title
undef 9.999e+20
xdef 40 linear 0 0.5
ydef 20 linear 40 0.5
zdef 1 linear 1013 1
tdef 1 linear 00Z04SEP2009 60mn
vars 1
topo  0  1,1,0,0  surface height (m) []
endvars



original ctl file:

ga-> q ctlinfo 2
dset gfs
title gfs
undef 9.999e+20
xdef 720 linear 0 0.5
ydef 361 linear -90 0.5
zdef 26 levels 1000 975 950 925 900 850 800 750
 700 650 600 550 500 450 400 350 300 250
 200 150 100 70 50 30 20 10
tdef 51 linear 00Z28SEP2009 180mn
vars 52
.....
endvars

Image of what it should be and what I obtained:

http://tinyurl.com/y8f2xcq


or in a schematic way,

THIS:

*
****
********
************
*****************
****************************
*****************
************
********
****
*


BECOMES THIS:

***
**************
***
*
****
********
************
**************
**************
**************
************
********
****
*


Thanks a lot for any help.

Javier


From michael.l.sestak at NAVY.MIL  Mon Sep 28 16:17:31 2009
From: michael.l.sestak at NAVY.MIL (Sestak, Michael L CIV 63134)
Date: Mon, 28 Sep 2009 13:17:31 -0700
Subject: fwrite wrap data
In-Reply-To: <20090928190508.04A5F201BF@mx2.cineca.it>
Message-ID: <MON.28.SEP.2009.131731.0700.>

When using fwrite you should use 'set x' and 'set y' instead of 'set lat' and 'set lon' so the number of grid points in each dimension is certain.  With set lat and set lon, what a person thinks is the last x grid position may not be written due to roundoff error, especially for fine resolution grids.

Michael Sestak
Fleet Numerical Meteorology and Oceanography Center
Monterey, CA




From: Javier G. Corripio
Sent: Mon 9/28/2009 12:03
To: GRADSUSR at LIST.CINECA.IT
Subject: fwrite wrap data


Dear all,

I would appreciate some advice with fwrite.

I am trying to write some data which is a subset of a larger grib.  It seems that the data is wrapped
around in a peculiar way when using fwrite.

Here I show and example for clarity, the topography of the Alps from the GFS (hgtsfc). When using
the data written by fwrite it will display with the eastern end on the northwestern corner

The ctl files seems to be OK, so I wonder if I failed to specify any settings for fwrite.

These are the commands:

open gfs.ctl
set lon 0 20
set lat 40 50
d hgtsfc;************** first map correct
set gxout fwrite
set fwrite alpsset.dat
d hgtsfc
disaple fwrite
reinit
open alpsset.ctl
d topo;**************** second map wrapped around


ctl file for subset:

ga-> q ctlinfo
dset alpsset.dat
title
undef 9.999e+20
xdef 40 linear 0 0.5
ydef 20 linear 40 0.5
zdef 1 linear 1013 1
tdef 1 linear 00Z04SEP2009 60mn
vars 1
topo  0  1,1,0,0  surface height (m) []
endvars



original ctl file:

ga-> q ctlinfo 2
dset gfs
title gfs
undef 9.999e+20
xdef 720 linear 0 0.5
ydef 361 linear -90 0.5
zdef 26 levels 1000 975 950 925 900 850 800 750
 700 650 600 550 500 450 400 350 300 250
 200 150 100 70 50 30 20 10
tdef 51 linear 00Z28SEP2009 180mn
vars 52
.....
endvars

Image of what it should be and what I obtained:

http://tinyurl.com/y8f2xcq


or in a schematic way,

THIS:

*
****
********
************
*****************
****************************
*****************
************
********
****
*


BECOMES THIS:

***
**************
***
*
****
********
************
**************
**************
**************
************
********
****
*


Thanks a lot for any help.

Javier
-------------- next part --------------
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From ela at COLA.IGES.ORG  Mon Sep 28 16:37:36 2009
From: ela at COLA.IGES.ORG (Eric Altshuler)
Date: Mon, 28 Sep 2009 16:37:36 -0400
Subject: fwrite wrap data
In-Reply-To: <1063202680.97351254170144701.JavaMail.root@mail.iges.org>
Message-ID: <MON.28.SEP.2009.163736.0400.>


From yi_zhou01 at YAHOO.CA  Mon Sep 28 16:40:21 2009
From: yi_zhou01 at YAHOO.CA (Emily)
Date: Mon, 28 Sep 2009 13:40:21 -0700
Subject: display hgt.200812.nc
In-Reply-To: <5f3ba4e00909281202u2a7571fbhbda2b9cf73cff2c0@mail.gmail.com>
Message-ID: <MON.28.SEP.2009.134021.0700.>

Hi Claudio,

Kevin M Levey already figured out this problem for me. Thanks.
Regards,

Emily
--- On Mon, 9/28/09, claudio cortes <claudiomet at GMAIL.COM> wrote:

From: claudio cortes <claudiomet at GMAIL.COM>
Subject: Re: display hgt.200812.nc
To: GRADSUSR at LIST.CINECA.IT
Received: Monday, September 28, 2009, 3:02 PM

try sdfopen instead open

2009/9/28 Emily <yi_zhou01 at yahoo.ca>


Hi group members,

I face a problem when I display 500 hpa geopotential height chart, it shows wrong data.

My gs file is:
'reinit'
'open d:\gradsfile\ncdata\hgt200812.ddf'
'set grads off'

'set grid off'
'set lon 220 310'
'set lat 20 60'
'set lev 500'
'set time 09z28dec2008'
'd hgt'
====================
My ddf is as below:
DSET d:\gradsfile\ncdata\hgt.200812.nc

DTYPE netcdf
TITLE NARR 4D field Lambert Conformal Conic projection
UNDEF 32766 missing_value
UNPACK scale_factor add_offset
PDEF 349 277 lcc 1 -145.5 1 1 50 50 -107 32463.41 32463.41
XDEF 615 linear 150 0.3333

YDEF 255 linear 2 0.3333
ZDEF 29 levels 1000, 975, 950, 925, 900, 875, 850, 825, 800, 775, 750, 725, 700,
?650, 600, 550, 500, 450, 400, 350, 300, 275, 250, 225, 200, 175, 150, 125, 100
tdef 248 linear
 00:00z01dec2008 3hr
vars 3
hgt 29 t,z,y,x? geopotential_height
lat=>glat 0 y,x Latitude
lon=>glon 0 y,x Longitude
endvars
=============
My grads version: Grads 2.0 a3,
window xp

I notice that the contours laber values are like -25900, -25800..... I think the value is wrong. Then I check ncdump information, the hgt value from ncdump also shows like -25900,.....


Is there some one knowing what wrong with this?Thanks very much.

Regards,

Emily
York University, Toronto, Canada.
?





-- 
Claudio Cortes
+56 (2) 2994121 

Meteorologo
Laboratorio de Meteorologia y Calidad de Aire
Centro Nacional del Medio Ambiente (CENMA)
--------------------------------------------------------------------------------------


Claudio Cortes
+56 (2) 2994121

Meteorologist
Meteorology and Air Quality Labs
National Enviroment Center, Chile (CENMA)

-------------- next part --------------
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From Javier.Corripio at UIBK.AC.AT  Mon Sep 28 17:05:31 2009
From: Javier.Corripio at UIBK.AC.AT (Javier G. Corripio)
Date: Mon, 28 Sep 2009 23:05:31 +0200
Subject: fwrite wrap data
Message-ID: <MON.28.SEP.2009.230531.0200.>

Thanks a lot!

Spot on, Erik, it was that extra column multiplied by every row that made all the trouble.

And thanks Michael, when I checked by q dim on a higher resolution set, set lat and set lon gives
fractional values for X and Y which may cause trouble later.

I owe you two a pint of beer (or many more) if we ever met.

Cheers.

Javier


On Mon, 28 Sep 2009 16:37:36 -0400, Eric Altshuler <ela at COLA.IGES.ORG> wrote:

>From looking at the plots, it seems that this is more than just a wraparound problem. The fields
show significant differences aside from the wraparound. One possible problem might be the
number of grid points in the xdef and ydef lines in the ctl file for the subset. The dimensions
should be 41 and 21 rather than 40 and 20.
>
>Best regards,
>
>Eric L. Altshuler
>Assistant Research Scientist
>Center for Ocean-Land-Atmosphere Studies
>4041 Powder Mill Road, Suite 302
>Calverton, MD 20705-3106
>USA
>
>E-mail: ela at cola.iges.org
>Phone: (301) 902-1257
>Fax: (301) 595-9793
>
>----- Original Message -----
>From: "Michael L CIV 63134 Sestak" <michael.l.sestak at NAVY.MIL>
>To: GRADSUSR at LIST.CINECA.IT
>Sent: Monday, September 28, 2009 4:17:31 PM GMT -05:00 US/Canada Eastern
>Subject: Re: fwrite wrap data
>
>
>
>When using fwrite you should use 'set x' and 'set y' instead of 'set lat' and 'set lon' so the number
of grid points in each dimension is certain. With set lat and set lon, what a person thinks is the last
x grid position may not be written due to roundoff error, especially for fine resolution grids.
>
>Michael Sestak
>Fleet Numerical Meteorology and Oceanography Center
>Monterey, CA
>
>
>
>From: Javier G. Corripio
>Sent: Mon 9/28/2009 12:03
>To: GRADSUSR at LIST.CINECA.IT
>Subject: fwrite wrap data
>
>
>Dear all,
>
>I would appreciate some advice with fwrite.
>
>I am trying to write some data which is a subset of a larger grib.  It seems that the data is
wrapped
>around in a peculiar way when using fwrite.
>
>Here I show and example for clarity, the topography of the Alps from the GFS (hgtsfc). When
using
>the data written by fwrite it will display with the eastern end on the northwestern corner
>
>The ctl files seems to be OK, so I wonder if I failed to specify any settings for fwrite.
>
>These are the commands:
>
>open gfs.ctl
>set lon 0 20
>set lat 40 50
>d hgtsfc;************** first map correct
>set gxout fwrite
>set fwrite alpsset.dat
>d hgtsfc
>disaple fwrite
>reinit
>open alpsset.ctl
>d topo;**************** second map wrapped around
>
>
>ctl file for subset:
>
>ga-> q ctlinfo
>dset alpsset.dat
>title
>undef 9.999e+20
>xdef 40 linear 0 0.5
>ydef 20 linear 40 0.5
>zdef 1 linear 1013 1
>tdef 1 linear 00Z04SEP2009 60mn
>vars 1
>topo  0  1,1,0,0  surface height (m) []
>endvars
>
>
>
>original ctl file:
>
>ga-> q ctlinfo 2
>dset gfs
>title gfs
>undef 9.999e+20
>xdef 720 linear 0 0.5
>ydef 361 linear -90 0.5
>zdef 26 levels 1000 975 950 925 900 850 800 750
> 700 650 600 550 500 450 400 350 300 250
> 200 150 100 70 50 30 20 10
>tdef 51 linear 00Z28SEP2009 180mn
>vars 52
>.....
>endvars
>
>Image of what it should be and what I obtained:
>
>http://tinyurl.com/y8f2xcq
>
>
>or in a schematic way,
>
>THIS:
>
>*
>****
>********
>************
>*****************
>****************************
>*****************
>************
>********
>****
>*
>
>
>BECOMES THIS:
>
>***
>**************
>***
>*
>****
>********
>************
>**************
>**************
>**************
>************
>********
>****
>*
>
>
>Thanks a lot for any help.
>
>Javier


From ela at COLA.IGES.ORG  Mon Sep 28 18:45:41 2009
From: ela at COLA.IGES.ORG (Eric Altshuler)
Date: Mon, 28 Sep 2009 18:45:41 -0400
Subject: fwrite wrap data
In-Reply-To: <1284500319.97951254177869415.JavaMail.root@mail.iges.org>
Message-ID: <MON.28.SEP.2009.184541.0400.>

Javier,

There is another situation where unwanted behavior can occur with fwrite. If you fwrite a global grid, be sure to set the dimension environment using 'set x' and 'set y' before doing the fwrite. For example, with a 0.5 degree (720x361) global grid, when you open the file in grads (and if it's the first file you open in a grads session), the initial dimension environment will be set to the following by default:

lon: 0 to 360 (X from 1 to 721)
lat: -90 to 90 (Y from 1 to 361)

If you fwrite without changing the dimension environment, the resulting file will have 721x361 elements because the data for lon=0 (X=1) will be duplicated as an extra column (lon=360, X=721). To prevent this behavior and obtain a 720x361 array in the fwrite file, do this before the fwrite:

set x 1 720

This will (in this case) set lon from 0 to 359.5 and prevent the wraparound behavior.

Best regards,

Eric L. Altshuler
Assistant Research Scientist
Center for Ocean-Land-Atmosphere Studies
4041 Powder Mill Road, Suite 302
Calverton, MD 20705-3106
USA

E-mail: ela at cola.iges.org
Phone: (301) 902-1257
Fax: (301) 595-9793

----- Original Message -----
From: "Javier G. Corripio" <Javier.Corripio at UIBK.AC.AT>
To: GRADSUSR at LIST.CINECA.IT
Sent: Monday, September 28, 2009 5:05:31 PM GMT -05:00 US/Canada Eastern
Subject: Re: fwrite wrap data

Thanks a lot!

Spot on, Erik, it was that extra column multiplied by every row that made all the trouble.

And thanks Michael, when I checked by q dim on a higher resolution set, set lat and set lon gives
fractional values for X and Y which may cause trouble later.

I owe you two a pint of beer (or many more) if we ever met.

Cheers.

Javier


On Mon, 28 Sep 2009 16:37:36 -0400, Eric Altshuler <ela at COLA.IGES.ORG> wrote:

>From looking at the plots, it seems that this is more than just a wraparound problem. The fields
show significant differences aside from the wraparound. One possible problem might be the
number of grid points in the xdef and ydef lines in the ctl file for the subset. The dimensions
should be 41 and 21 rather than 40 and 20.
>
>Best regards,
>
>Eric L. Altshuler
>Assistant Research Scientist
>Center for Ocean-Land-Atmosphere Studies
>4041 Powder Mill Road, Suite 302
>Calverton, MD 20705-3106
>USA
>
>E-mail: ela at cola.iges.org
>Phone: (301) 902-1257
>Fax: (301) 595-9793
>
>----- Original Message -----
>From: "Michael L CIV 63134 Sestak" <michael.l.sestak at NAVY.MIL>
>To: GRADSUSR at LIST.CINECA.IT
>Sent: Monday, September 28, 2009 4:17:31 PM GMT -05:00 US/Canada Eastern
>Subject: Re: fwrite wrap data
>
>
>
>When using fwrite you should use 'set x' and 'set y' instead of 'set lat' and 'set lon' so the number
of grid points in each dimension is certain. With set lat and set lon, what a person thinks is the last
x grid position may not be written due to roundoff error, especially for fine resolution grids.
>
>Michael Sestak
>Fleet Numerical Meteorology and Oceanography Center
>Monterey, CA
>
>
>
>From: Javier G. Corripio
>Sent: Mon 9/28/2009 12:03
>To: GRADSUSR at LIST.CINECA.IT
>Subject: fwrite wrap data
>
>
>Dear all,
>
>I would appreciate some advice with fwrite.
>
>I am trying to write some data which is a subset of a larger grib.  It seems that the data is
wrapped
>around in a peculiar way when using fwrite.
>
>Here I show and example for clarity, the topography of the Alps from the GFS (hgtsfc). When
using
>the data written by fwrite it will display with the eastern end on the northwestern corner
>
>The ctl files seems to be OK, so I wonder if I failed to specify any settings for fwrite.
>
>These are the commands:
>
>open gfs.ctl
>set lon 0 20
>set lat 40 50
>d hgtsfc;************** first map correct
>set gxout fwrite
>set fwrite alpsset.dat
>d hgtsfc
>disaple fwrite
>reinit
>open alpsset.ctl
>d topo;**************** second map wrapped around
>
>
>ctl file for subset:
>
>ga-> q ctlinfo
>dset alpsset.dat
>title
>undef 9.999e+20
>xdef 40 linear 0 0.5
>ydef 20 linear 40 0.5
>zdef 1 linear 1013 1
>tdef 1 linear 00Z04SEP2009 60mn
>vars 1
>topo  0  1,1,0,0  surface height (m) []
>endvars
>
>
>
>original ctl file:
>
>ga-> q ctlinfo 2
>dset gfs
>title gfs
>undef 9.999e+20
>xdef 720 linear 0 0.5
>ydef 361 linear -90 0.5
>zdef 26 levels 1000 975 950 925 900 850 800 750
> 700 650 600 550 500 450 400 350 300 250
> 200 150 100 70 50 30 20 10
>tdef 51 linear 00Z28SEP2009 180mn
>vars 52
>.....
>endvars
>
>Image of what it should be and what I obtained:
>
>http://tinyurl.com/y8f2xcq
>
>
>or in a schematic way,
>
>THIS:
>
>*
>****
>********
>************
>*****************
>****************************
>*****************
>************
>********
>****
>*
>
>
>BECOMES THIS:
>
>***
>**************
>***
>*
>****
>********
>************
>**************
>**************
>**************
>************
>********
>****
>*
>
>
>Thanks a lot for any help.
>
>Javier


From emirzaei at GMAIL.COM  Tue Sep 29 00:40:42 2009
From: emirzaei at GMAIL.COM (ebrahim mirzaei)
Date: Tue, 29 Sep 2009 08:10:42 +0330
Subject: display hgt.200812.nc
In-Reply-To: <483436.43653.qm@web88106.mail.re2.yahoo.com>
Message-ID: <TUE.29.SEP.2009.081042.0330.>

Hi Emily,If your data is netCDF, why don't you use sdfopen without .ddf or
.ctl file:

'reinit'
'open d:\gradsfile\ncdata\hgt.200812.nc'
'set grads off'
'set grid off'
'set lon 220 310'
'set lat 20 60'
'set lev 500'
'set time 09z28dec2008'
'd hgt'



On Mon, Sep 28, 2009 at 9:17 PM, Emily <yi_zhou01 at yahoo.ca> wrote:

> Hi group members,
>
> I face a problem when I display 500 hpa geopotential height chart, it shows
> wrong data.
>
> My gs file is:
> 'reinit'
> 'open d:\gradsfile\ncdata\hgt200812.ddf'
> 'set grads off'
> 'set grid off'
> 'set lon 220 310'
> 'set lat 20 60'
> 'set lev 500'
> 'set time 09z28dec2008'
> 'd hgt'
> ====================
> My ddf is as below:
> DSET d:\gradsfile\ncdata\hgt.200812.nc
> DTYPE netcdf
> TITLE NARR 4D field Lambert Conformal Conic projection
> UNDEF 32766 missing_value
> UNPACK scale_factor add_offset
> PDEF 349 277 lcc 1 -145.5 1 1 50 50 -107 32463.41 32463.41
> XDEF 615 linear 150 0.3333
> YDEF 255 linear 2 0.3333
> ZDEF 29 levels 1000, 975, 950, 925, 900, 875, 850, 825, 800, 775, 750, 725,
> 700,
>  650, 600, 550, 500, 450, 400, 350, 300, 275, 250, 225, 200, 175, 150, 125,
> 100
> tdef 248 linear 00:00z01dec2008 3hr
> vars 3
> hgt 29 t,z,y,x  geopotential_height
> lat=>glat 0 y,x Latitude
> lon=>glon 0 y,x Longitude
> endvars
> =============
> My grads version: Grads 2.0 a3,
> window xp
>
> I notice that the contours laber values are like -25900, -25800..... I
> think the value is wrong. Then I check ncdump information, the hgt value
> from ncdump also shows like -25900,.....
>
> Is there some one knowing what wrong with this?Thanks very much.
>
> Regards,
>
> Emily
> York University, Toronto, Canada.
>
>
>
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From emirzaei at GMAIL.COM  Tue Sep 29 00:42:10 2009
From: emirzaei at GMAIL.COM (ebrahim mirzaei)
Date: Tue, 29 Sep 2009 08:12:10 +0330
Subject: Fwd: correctionnnn ;-)
Message-ID: <TUE.29.SEP.2009.081210.0330.>

---------- Forwarded message ----------
From: ebrahim mirzaei <emirzaei at gmail.com>
Date: Tue, Sep 29, 2009 at 8:10 AM
Subject: Re: display hgt.200812.nc
To: GRADSUSR at list.cineca.it


Hi Emily,If your data is netCDF, why don't you use sdfopen without .ddf or
.ctl file:

'reinit'
'sdfopen d:\gradsfile\ncdata\hgt.200812.nc'
 'set grads off'
'set grid off'
'set lon 220 310'
'set lat 20 60'
'set lev 500'
'set time 09z28dec2008'
'd hgt'



On Mon, Sep 28, 2009 at 9:17 PM, Emily <yi_zhou01 at yahoo.ca> wrote:

> Hi group members,
>
> I face a problem when I display 500 hpa geopotential height chart, it shows
> wrong data.
>
> My gs file is:
> 'reinit'
> 'open d:\gradsfile\ncdata\hgt200812.ddf'
> 'set grads off'
> 'set grid off'
> 'set lon 220 310'
> 'set lat 20 60'
> 'set lev 500'
> 'set time 09z28dec2008'
> 'd hgt'
> ====================
> My ddf is as below:
> DSET d:\gradsfile\ncdata\hgt.200812.nc
> DTYPE netcdf
> TITLE NARR 4D field Lambert Conformal Conic projection
> UNDEF 32766 missing_value
> UNPACK scale_factor add_offset
> PDEF 349 277 lcc 1 -145.5 1 1 50 50 -107 32463.41 32463.41
> XDEF 615 linear 150 0.3333
> YDEF 255 linear 2 0.3333
> ZDEF 29 levels 1000, 975, 950, 925, 900, 875, 850, 825, 800, 775, 750, 725,
> 700,
>  650, 600, 550, 500, 450, 400, 350, 300, 275, 250, 225, 200, 175, 150, 125,
> 100
> tdef 248 linear 00:00z01dec2008 3hr
> vars 3
> hgt 29 t,z,y,x  geopotential_height
> lat=>glat 0 y,x Latitude
> lon=>glon 0 y,x Longitude
> endvars
> =============
> My grads version: Grads 2.0 a3,
> window xp
>
> I notice that the contours laber values are like -25900, -25800..... I
> think the value is wrong. Then I check ncdump information, the hgt value
> from ncdump also shows like -25900,.....
>
> Is there some one knowing what wrong with this?Thanks very much.
>
> Regards,
>
> Emily
> York University, Toronto, Canada.
>
>
>
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From eliavs at GMAIL.COM  Tue Sep 29 05:11:20 2009
From: eliavs at GMAIL.COM (eliav schmulewitz)
Date: Tue, 29 Sep 2009 11:11:20 +0200
Subject: using gifsicle as part of a script
Message-ID: <TUE.29.SEP.2009.111120.0200.>

Hi
 i an trying to use gifsicle as part of a script here i attached the whole
script, the problem is the line :
*'!p:/gifsicle/gifsicle  -b -d 100 f:/movie/animation.gif --insert-before #0
f:/movie/'count'.gif'*
does anyone know what i am doing wrong?
eliav
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From dasilva at ALUM.MIT.EDU  Tue Sep 29 10:33:59 2009
From: dasilva at ALUM.MIT.EDU (Arlindo da Silva)
Date: Tue, 29 Sep 2009 10:33:59 -0400
Subject: OpenGrADS Bundle v2.0.a7.oga.1 Released!
Message-ID: <TUE.29.SEP.2009.103359.0400.>

Dear GrADS Users,

I have started uploading to sf.net sources and binaries for the
OpenGrADS Bundle based on COLA's *2.0.a7* release:

       https://sourceforge.net/projects/opengrads/files/

Look under grads2/2.0.a7.oga.1

The OpenGrADS Bundle is a new way of packaging GrADS builds that
is somewhat inspired by my experience with the Win32
Superpacks. The idea is to have a single package that require
no (minimum?) configuration and that is easily relocatable (say to
a USB memory stick).  The structure of an OpenGrADS Bundle is
described here:

  http://opengrads.org/wiki/index.php?title=The_OpenGrADS_Bundle

Once you download the tarball take a look at the INSTALL
file. You can install it as a Bundle (highly recommended) or
simply install the binaries the same way you did in the past.

Note: The Windows build will be available soon, for now only Mac OS X,
Linux and shortly FreeBSD.

*Note for Mac OS X users: *Unless I hear from you, I am not intending to
post a PowerPC build. Let me know if you would need a PPC build of the
OpenGrADS Bundle.

See below for additional information on this releae.
*
*
   Cheers!

   Arlindo da SIlva
   On behalf of the OpenGrADS Development team



                                      * The OpenGrADS Bundle Distribution*
*                    ---------------------------------*
*
*
*                          http://opengrads.org*
*
*
*                        GrADS Version 2.0.a7.oga.1*
*                        Released 27 September 2009*
*
*
*This version is based on COLA's 2.0.a7 release which includes a new*
*interface for the native HDF-5 format, options for templating on Julian Day
*
*and time axis, new funtion eloop, in addition to some bug fixes. See*
*the ChangeLog for details.*
*
*
*Several important OpenGrADS additions are available with this version:*
*
*
*- grads is now built with NetCDF v4.0.1beta3 which includes support*
*  for NetCDF-4/HDF-5 (similar to gradsnc4 in v1.9.0-rc1) and has*
*  built in OPeNDAP support.*
*
*
*- gradsdap is no longer provided as its functionality is now included *
*  in the single executable *grads*.*
*
*
*- this is an OpenGrADS Bundle release, a relocatable, minimum*
*  configuration package that has all that you need to run GrADS. See*
*  INSTALL for additonal information.*
*
*
*- we have introduced option -C to enable colorized text*
*
*
*- preview release of the OpenGrADS Extensions; the same extensions *
*  available in GrADS v1.9.0-rc1 are now available with GrADS v2.0.*
*
*
*  Caveat: as COLA is yet to publish the official API for User Defined*
*          functions in GrADS v2.0 we have adopted here an API that*
*          is based on our work vith v1.9.0-rc1. This is a very low-level*
*          API that is *not* endorsed by COLA. As such, it is *not*
advisable *
*          that users adopt this API to write their own extensions.*
*
*
*- These extensions are still being fully tested. Please report any problems
*
*  you encounter. Use them at your own risk.*
*        *
*- The following extensions are included: see below.*
*
*
*
*
*Documentation and Additional Information*
*----------------------------------------*
*
*
*Consult *
*           OpenGrADS Website: http://opengrads.org*
*               GrADS Website: http://grads.iges.org/grads*
*
*
*           *
*
*
*   User*
*  Defined*
*  COMMAND           Short Description                Function at Library *
* ---------- -----------------------------------  --------------------------
*
*            ------- Environment Variables ------  @ *
* printenv   Expand environment variables         c_xenv@^env.gex*
* runenv     Expand env vars and run command      c_env@^env.gex*
* @          Expand env vars and run command      c_env@^env.gex*
* getenv     Get value of environment variable    c_getenv@^env.gex*
* setenv     Set value of environment variable    c_setenv@^env.gex*
*            ---------- GxYAT Extensions --------  @ *
* gxyat      Save images in PNG/SVG/PDF/PS        c_gxyat@^gxyat.gex*
* set_rgba   Set color red/green/blue/alpha       c_rgba@^gxyat.gex*
*            ---------- Simple Examples ---------  @ *
* hello      Hello, World! sample command         c_hello@^libhello.gex*
*            ---- Interprocess Communication ----  @ *
* ipc_verb   IPC verbose toggle                   c_Verb@^libipc.gex*
* ipc_open   Open stream for save/load            c_Open@^libipc.gex*
* ipc_close  Close stream                         c_Close@^libipc.gex*
* ipc_save   Save expression to stream            c_Save@^libipc.gex*
* ipc_define Define variable (obsolete)           c_Define@^libipc.gex*
* ipc_error  Print IPC error message              c_Error@^libipc.gex*
*            ----- Mike Fiorino's Extensions ----  @ *
* mfhilo     Find max/min or H/L in 2D field      c_mfhilo@^libmf.gex*
* tcprop     Properties radinf from central lon/lat c_tcprop@^libmf.gex*
* grhist     histogram of expr                    c_grhist@^libmf.gex*
*            -------- Shapefile Extensions ------  @ *
* shp_lines  Draw lines    from shapefile         c_lines@^shape.gex*
* shp_polyf  Draw polygons from shapefile         c_polyf@^shape.gex*
* ---------- -----------------------------------  --------------------------
*
*
*
*   User*
*  Defined*
*  FUNCTION          Short Description                Function at Library *
* ---------- -----------------------------------  --------------------------
*
*            ----- Ben-Jei Tsuang Functions -----  @ *
* lt         Local time                           f_bjt@^libbjt.gex*
* jd         Julian day                           f_bjt@^libbjt.gex*
* cosz       Cosine solar zenith angle            f_bjt@^libbjt.gex*
* dayratio   Daylight ratio                       f_bjt@^libbjt.gex*
* if         Conditional function                 f_bjt@^libbjt.gex*
* maxv       Maximum value                        f_bjt@^libbjt.gex*
* minv       Minimum value                        f_bjt@^libbjt.gex*
* which      Label gridpoints                     f_bjt@^libbjt.gex*
* ftest      F-test                               f_bjt@^libbjt.gex*
* ttest      T-test                               f_bjt@^libbjt.gex*
* tfit       Point  linear regression             f_bjt@^libbjt.gex*
* fit        Global linear regression             f_bjt@^libbjt.gex*
* tcorr2     Time correlation                     f_bjt@^libbjt.gex*
* tregr2     Point linear regression              f_bjt@^libbjt.gex*
* tmave2     Time averaging w/masking             f_bjt@^libbjt.gex*
* madvu      Calculates -d(u*EXPR)/dx             f_bjt@^libbjt.gex*
* madvv      Calculates -d(V*EXPR)/dy             f_bjt@^libbjt.gex*
* madvw      Calculates -d(W*EXPR)/dp             f_bjt@^libbjt.gex*
* muadv      Zonal advection                      f_bjt@^libbjt.gex*
* mvadv      Meridional advection                 f_bjt@^libbjt.gex*
* mwadv      Vertical advection                   f_bjt@^libbjt.gex*
* satvap     Saturated vapor pressure             f_bjt@^libbjt.gex*
* dew        Dew point temperature                f_bjt@^libbjt.gex*
* lw         Thermal infrared fluxes              f_bjt@^libbjt.gex*
* lw2        Thermal infrared fluxes v2           f_bjt@^libbjt.gex*
* pinterp    Pressure interpolation               f_bjt@^libbjt.gex*
* zinterp    Height interpolation                 f_bjt@^libbjt.gex*
* line       Draws a line                         f_bjt@^libbjt.gex*
* vint2      Mass-weighted vertical integral      f_bjt@^libbjt.gex*
*            --------- Psi/Chi Functions --------  @ *
* fish       Poisson solver                       f_fish@^fish.gex*
* fish_psi   Compute streamfunction               f_psichi@^fish.gex*
* fish_chi   Compute velocity potential           f_psichi@^fish.gex*
* fish_vor   Compute vorticity                    f_psichi@^fish.gex*
* fish_div   Compute divergence                   f_psichi@^fish.gex*
*            -- Saakeskus Function Collection --   @ *
* dewpt      Dew-point temperature                f_gsudf@^gsudf.gex*
* ept        Equivalent potential temperature     f_gsudf@^gsudf.gex*
* epi        Potential Instability                f_gsudf@^gsudf.gex*
* plcl       Pressure at LCL                      f_gsudf@^gsudf.gex*
* shear      Wind Shear                           f_gsudf@^gsudf.gex*
* srh1km     Storm-relative Helicity 0-1km'       f_gsudf@^gsudf.gex*
* srh3km     Storm-relative Helicity 0-3km'       f_gsudf@^gsudf.gex*
* tlcl       Temperature at LCL                   f_gsudf@^gsudf.gex*
* tsindex    Chance of T-storm Initiation         f_gsudf@^gsudf.gex*
* ttindex    Total Totals Index                   f_gsudf@^gsudf.gex*
* wchill     Wind Chill Index (New)               f_gsudf@^gsudf.gex*
*            ---------- Simple Examples ---------  @ *
* hello      Hello, World! sample function        f_hello@^libhello.gex*
*            ---- Interprocess Communication ----  @ *
* ipc_save   Save expression to stream            f_Save@^libipc.gex*
* ipc_load   Load variable from file              f_Load@^libipc.gex*
*            ----- Mike Fiorino's Extensions ----  @ *
* smth2d     Shuman smoother/de-smoother          f_smth2d@^libmf.gex*
* uv2trw     Find radial/tangential velocity      f_uv2trw@^libmf.gex*
* re2        General interpolator (regrid2)       f_re2@^libmf.gex*
* esmrf      Saturation vapor pressure (old MRF)  f_esmrf@^libmf.gex*
* linreg     Linear regression: mx + b            f_linreg@^libmf.gex*
*            -------- Regridding Functions ------  @ *
* re         General interpolator                 ffre@^re.gex*
* re_        General interpolator (verbose)       ffre_dbg@^re.gex*
* regrid2    regrid2-like wrapper for re()        f_gsudf@^gsudf.gex*
* geos       Interpolation to GEOS-5 Grids        f_gsudf@^gsudf.gex*
* reimg      Interpolation for Image Generation'  f_gsudf@^gsudf.gex*
*            -------- Spherical Harmonics -------  @ *
* sh_filt    Spherical harmonic filter            f_shfilt@^shfilt.gex*
* sh_power   Spherical harmonic spectra           f_shpowr@^shfilt.gex*
* ---------- -----------------------------------  --------------------------
*
*
*



--
Arlindo da Silva
dasilva at alum.mit.edu
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From arlindo.dasilva at GMAIL.COM  Tue Sep 29 10:52:38 2009
From: arlindo.dasilva at GMAIL.COM (Arlindo da Silva)
Date: Tue, 29 Sep 2009 10:52:38 -0400
Subject: lats4d?
In-Reply-To: <e1aac6260909241213n62444e5cx7279be97968528b5@mail.gmail.com>
Message-ID: <TUE.29.SEP.2009.105238.0400.>

On Thu, Sep 24, 2009 at 3:13 PM, tatiane felinto
<tatiane.felinto at gmail.com>wrote:

> Hello users
>
> I have a file with resolution of 1.125X1.125 with 23 levels and
> spacing in x between 140W to 30E and 90S and between the 30N. I want
> to do a regridding to a grid  0.25X0.25 and reduce the number of
> levels. I tried using lats4d and gave the following command:
>
>
> gradsnc -blc 'run lats4d.gs -i /media/TATIANE/era40/temp/t_1980.ctl -o
>  t25_1980 -format grads_grib -mxtimes 1464 -levs 1000 850 -time
> 00z01jan1980 18z31jan1980 -de era025.ctl -func re(@,0.25,0.25,bl) -v
> -q'
>
>
> This command runs without errors, creating the .grb,. ctl and
> .gmp.....  However, when viewing the picture,  note that the
> information is not correct.


Help me out here. How is it not correct? Please send a similar plot for the
un-interpolated data.

     Arlindo


--
Arlindo da Silva
dasilva at alum.mit.edu
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From yi_zhou01 at YAHOO.CA  Tue Sep 29 11:48:18 2009
From: yi_zhou01 at YAHOO.CA (Emily)
Date: Tue, 29 Sep 2009 08:48:18 -0700
Subject: display hgt.200812.nc
In-Reply-To: <45dcd84d0909282140m57aaff3ka39e36818ee61871@mail.gmail.com>
Message-ID: <TUE.29.SEP.2009.084818.0700.>

Hi, 

Yi (Emily) Zhou

601-2980 Don Mills Road

Toronto, ON. M2J 3B9



Phone: 416-628-5971

Email: yi_zhou01 at yahoo.ca

--- On Tue, 9/29/09, ebrahim mirzaei <emirzaei at GMAIL.COM> wrote:

From: ebrahim mirzaei <emirzaei at GMAIL.COM>
Subject: Re: display hgt.200812.nc
To: GRADSUSR at LIST.CINECA.IT
Received: Tuesday, September 29, 2009, 12:40 AM

Hi?Emily,If your data is netCDF, why don't you use sdfopen without .ddf or .ctl file:
'reinit''open?d:\gradsfile\ncdata\hgt.200812.nc'

'set grads off''set grid off'
'set lon 220 310'
'set lat 20 60'


'set lev 500'
'set time 09z28dec2008'
'd hgt'



On Mon, Sep 28, 2009 at 9:17 PM, Emily <yi_zhou01 at yahoo.ca> wrote:


Hi group members,



I face a problem when I display 500 hpa geopotential height chart, it shows wrong data.

My gs file is:
'reinit'
'open d:\gradsfile\ncdata\hgt200812.ddf'
'set grads off'
'set grid off'


'set lon 220 310'
'set lat 20 60'
'set lev 500'
'set time 09z28dec2008'
'd hgt'
====================
My ddf is as below:
DSET d:\gradsfile\ncdata\hgt.200812.nc


DTYPE netcdf
TITLE NARR 4D field Lambert Conformal Conic projection
UNDEF 32766 missing_value
UNPACK scale_factor add_offset
PDEF 349 277 lcc 1 -145.5 1 1 50 50 -107 32463.41 32463.41
XDEF 615 linear 150 0.3333


YDEF 255 linear 2 0.3333
ZDEF 29 levels 1000, 975, 950, 925, 900, 875, 850, 825, 800, 775, 750, 725, 700,
?650, 600, 550, 500, 450, 400, 350, 300, 275, 250, 225, 200, 175, 150, 125, 100
tdef 248 linear
 00:00z01dec2008 3hr
vars 3
hgt 29 t,z,y,x? geopotential_height
lat=>glat 0 y,x Latitude
lon=>glon 0 y,x Longitude
endvars
=============
My grads version: Grads 2.0 a3,
window xp

I notice that the contours laber values are like -25900, -25800..... I think the value is wrong. Then I check ncdump information, the hgt value from ncdump also shows like -25900,.....



Is there some one knowing what wrong with this?Thanks very much.

Regards,

Emily
York University, Toronto, Canada.
?





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From yi_zhou01 at YAHOO.CA  Tue Sep 29 11:51:03 2009
From: yi_zhou01 at YAHOO.CA (Emily)
Date: Tue, 29 Sep 2009 08:51:03 -0700
Subject: display hgt.200812.nc
In-Reply-To: <45dcd84d0909282140m57aaff3ka39e36818ee61871@mail.gmail.com>
Message-ID: <TUE.29.SEP.2009.085103.0700.>

Hi Ebrahim,

The hgt.200812.nc is another kind of data set, 8 times per day. It is a pre-projection format, so I can not open it use sdfopen.

Regards,

Emily

--- On Tue, 9/29/09, ebrahim mirzaei <emirzaei at GMAIL.COM> wrote:

From: ebrahim mirzaei <emirzaei at GMAIL.COM>
Subject: Re: display hgt.200812.nc
To: GRADSUSR at LIST.CINECA.IT
Received: Tuesday, September 29, 2009, 12:40 AM

Hi?Emily,If your data is netCDF, why don't you use sdfopen without .ddf or .ctl file:
'reinit''open?d:\gradsfile\ncdata\hgt.200812.nc'

'set grads off''set grid off'
'set lon 220 310'
'set lat 20 60'


'set lev 500'
'set time 09z28dec2008'
'd hgt'



On Mon, Sep 28, 2009 at 9:17 PM, Emily <yi_zhou01 at yahoo.ca> wrote:


Hi group members,



I face a problem when I display 500 hpa geopotential height chart, it shows wrong data.

My gs file is:
'reinit'
'open d:\gradsfile\ncdata\hgt200812.ddf'
'set grads off'
'set grid off'


'set lon 220 310'
'set lat 20 60'
'set lev 500'
'set time 09z28dec2008'
'd hgt'
====================
My ddf is as below:
DSET d:\gradsfile\ncdata\hgt.200812.nc


DTYPE netcdf
TITLE NARR 4D field Lambert Conformal Conic projection
UNDEF 32766 missing_value
UNPACK scale_factor add_offset
PDEF 349 277 lcc 1 -145.5 1 1 50 50 -107 32463.41 32463.41
XDEF 615 linear 150 0.3333


YDEF 255 linear 2 0.3333
ZDEF 29 levels 1000, 975, 950, 925, 900, 875, 850, 825, 800, 775, 750, 725, 700,
?650, 600, 550, 500, 450, 400, 350, 300, 275, 250, 225, 200, 175, 150, 125, 100
tdef 248 linear
 00:00z01dec2008 3hr
vars 3
hgt 29 t,z,y,x? geopotential_height
lat=>glat 0 y,x Latitude
lon=>glon 0 y,x Longitude
endvars
=============
My grads version: Grads 2.0 a3,
window xp

I notice that the contours laber values are like -25900, -25800..... I think the value is wrong. Then I check ncdump information, the hgt value from ncdump also shows like -25900,.....



Is there some one knowing what wrong with this?Thanks very much.

Regards,

Emily
York University, Toronto, Canada.
?





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From cmunozc at UDEC.CL  Tue Sep 29 17:55:48 2009
From: cmunozc at UDEC.CL (Cristian Gonzal =?iso-8859-1?Q?Mu=F1oz_Castillo?=)
Date: Tue, 29 Sep 2009 17:55:48 -0400
Subject: about reading a netcdf file
Message-ID: <TUE.29.SEP.2009.175548.0400.>

Hi everyone,

I try to read a netcdf file called "tutorial_ascii.nc" but i wasn't able
to in grads version 1.9.0-rc1 32-bit on kubuntu 9.04

I get the following message:

Scanning self-describing file:  tutorial_ascii.nc
SDF file has no discernable X coordinate.

my ncdump for this file is:

netcdf tutorial_ascii {
dimensions:
        mxstr = 16 ;
        hdr_arr_len = 3 ;
        obs_arr_len = 5 ;
        nhdr = 5 ;
        nobs = UNLIMITED ; // (2140 currently)
variables:
        char hdr_typ(nhdr, mxstr) ;
                hdr_typ:long_name = "message type" ;
        char hdr_sid(nhdr, mxstr) ;
                hdr_sid:long_name = "station identification" ;
        char hdr_vld(nhdr, mxstr) ;
                hdr_vld:long_name = "valid time" ;
                hdr_vld:units = "YYYYMMDD_HHMMSS UTC" ;
        float hdr_arr(nhdr, hdr_arr_len) ;
                hdr_arr:long_name = "array of observation station header
values" ;
                hdr_arr:_fill_value = -9999.f ;
                hdr_arr:columns = "lat lon elv" ;
                hdr_arr:lat_long_name = "latitude" ;
                hdr_arr:lat_units = "degrees_north" ;
                hdr_arr:lon_long_name = "longitude" ;
                hdr_arr:lon_units = "degrees_east" ;
                hdr_arr:elv_long_name = "elevation " ;
                hdr_arr:elv_units = "meters above sea level (msl)" ;
        float obs_arr(nobs, obs_arr_len) ;
                obs_arr:long_name = "array of observation values" ;
                obs_arr:_fill_value = -9999.f ;
                obs_arr:columns = "hdr_id gc lvl hgt ob" ;
                obs_arr:hdr_id_long_name = "index of matching header data" ;
                obs_arr:gc_long_name = "grib code corresponding to the
observation type" ;
                obs_arr:lvl_long_name = "pressure level (hPa) or
accumulation interval (h)" ;
                obs_arr:hgt_long_name = "height in meters above sea level
(msl)" ;
                obs_arr:ob_long_name = "observation value" ;

// global attributes:
                :FileOrigins = "File
tutorial/out/ascii2nc/tutorial_ascii.nc generated
20090819_230043 UTC on host gimli by the ASCII2NC tool"


any idea why this happens?

regards!

--
Cristian G. Mu?oz Castillo
Licenciado en Ciencias F?sicas
Geof?sico
Depto. Geof?sica
Facultad Ciencias F?sicas y Matem?ticas
Oficina 442
Fono (41) 2203155
Universidad de Concepci?n
Concepci?n
Chile


From spc_meteor at YAHOO.COM.BR  Tue Sep 29 19:01:03 2009
From: spc_meteor at YAHOO.COM.BR (Saulo Carvalho)
Date: Tue, 29 Sep 2009 16:01:03 -0700
Subject: Res: Doing templates from .nc files
In-Reply-To: <4ABAABAA.9070504@ec.gc.ca>
Message-ID: <TUE.29.SEP.2009.160103.0700.>

Dear Ajaya,


In the first time I was made the template, it did work. After that, the colors are only in gray.
I followed you suggestion about  UNDEF, but the warning's still appearing. It's very strange.

Greetings,
 ________________________________________
Saulo Carvalho (that's my name)


SEMA
Diretoria de Recursos H?dricos




________________________________
De: Ajaya Mohan <Ajaya.Mohan at EC.GC.CA>
Para: GRADSUSR at LIST.CINECA.IT
Enviadas: Quarta-feira, 23 de Setembro de 2009 20:13:46
Assunto: Re: Doing templates from .nc files

Try this, I am using Version 1.9b4, it should work....


dset ^avhrr-only-v2.%y4%m2%d2.nc
options template
dtype netcdf
undef -9.96921e+36 _FillValue
unpack scale_factor add_offset
title Daily-OI-V2, final, Data (Ship, Buoy, AVHRR, GSFC-ice)
xdef 1440 linear  0.125 0.25
ydef 720 linear -89.875 0.25
zdef 1 linear 1 1
tdef 40 linear 00Z10SEP1982 1dy
vars 4
sst=>sst   0 t,z,y,x Daily sea surface temperature
anom=>anom  0 t,z,y,x Daily sea surface temperature anomalies
err=>err   0 t,z,y,x Estimated error standard deviation of analysed_sst
ice=>ice   0 t,z,y,x Sea ice concentration
endvars

ajaya

Saulo Carvalho wrote:
> Hello everybody,
>
>
> I'm working with avhrr data files available in
> ftp://eclipse.ncdc.noaa.gov/pub/OI-daily-v2/NetCDF/. For my
> surprise, when I make a .ctl file in order to template the .nc's,
> it doesn' t work. As these files has 4 variables, it may have a problem
> in making the template.
>
>
> Is there an alternative way to solve this problem?
>
>
> ________________________________________
> Saulo Carvalho
>
>
> SEMA
> Diretoria de Recursos H?dricos



      ____________________________________________________________________________________
Veja quais s?o os assuntos do momento no Yahoo! +Buscados
http://br.maisbuscados.yahoo.com
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From dasilva at ALUM.MIT.EDU  Tue Sep 29 21:50:38 2009
From: dasilva at ALUM.MIT.EDU (Arlindo da Silva)
Date: Tue, 29 Sep 2009 21:50:38 -0400
Subject: Win32 Superpack v2.0.a7.oga.1 Released!
Message-ID: <TUE.29.SEP.2009.215038.0400.>

Dear Windows Users,
   We have upload to sourceforge version 2.0.a7.oga.1 the *Win32 **Superpack
*:

https://sourceforge.net/projects/opengrads/files/grads2-windows/

(See my previous posting announcing a similar release for Linux to learn
about what is new in this release --- the Windows build has all the features
of the Linux version).

If you have the necessary privileges to install software on your computer I
recoomend the Windows installer (*-win32_superpack.exe) which will
optionally set your path and create an entry in your [Start] menu, placing
links on your Desktop. The [Start] menu entry now also includes links to the
bundled HTML documentation, with Tutorial, User's Guide and Command Index
(from COLA), and "manual pages" for the OpenGrADS extensions. Try out the
MERRA and NOMADS Browsers for a (live) graphical user interface to the MERRA
reanalysis and NOAA forecast data (GFS, NAM, RUC, Wave) through OpenDAP (a
network connection is required).

   As before, we are also including a *-win32_superpack.zip package for
those users who do not have the admin privileges to install software on
their Windows boxes.   The contents are exactly the same as the
*-win32_pack.exe package and are meant to be relocatable: copy the OpenGrADS
directory to a USB mem stick and take it on the road with you. The VBscript
wrappers at the top remain experimental; I'd appreciate any feedback from
people who actually know VBscripting.

   For those experienced cygwin users preferring a light weight distribution
(and willing to set the necessary environment variables), we are again
including tarballs with the binaries and extensions.

  This version has been verified to work on *Windows 7 RC* (Build 7100).

  Please any me know of any issues.

  Enjoy!

     Arlindo


--
Arlindo da Silva
dasilva at alum.mit.edu
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From hc.nnamchi at LASG.IAP.AC.CN  Wed Sep 30 08:40:19 2009
From: hc.nnamchi at LASG.IAP.AC.CN (Hyacinth Cyprain Nnamchi)
Date: Wed, 30 Sep 2009 20:40:19 +0800
Subject: Win32 Superpack v2.0.a7.oga.1 Released!
In-Reply-To: <77fcd6b20909291850l59b37535p9b4494f4ca756c9@mail.gmail.com>
Message-ID: <WED.30.SEP.2009.204019.0800.>

Dear Arlindo,
Thanks alot for the update and all the useful information.
Like, you knew that I was particularly concerned about the cmask function.

I have just installed it (on window XP) and tried much of my files and it does work very fine so far.

Best regards,
hyacinth
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From Reto.Stauffer at STUDENT.UIBK.AC.AT  Wed Sep 30 09:51:24 2009
From: Reto.Stauffer at STUDENT.UIBK.AC.AT (Reto Stauffer)
Date: Wed, 30 Sep 2009 15:51:24 +0200
Subject: Variable Grid possible?
Message-ID: <WED.30.SEP.2009.155124.0200.>

Dear Usergroup

A few weeks ago you sent me a wonderful hint about the topic "Variable Grid
possible?" (you can see the answers below).
I did some web-research but i could not find any good help topics.

What i understood (about the PDEF function):
- I have a data matrix (data-value, longitude, latitude) (for ex. 10x5)
- I have a GrADS-internal regular Grid, for example XDEF 5 LINEAR 0 10, YDEF 3
LINEAR 0 10 (-> 5x3)
- I compute a interpolation matrix wich describes wich value (from my original
10x5 matrix) should be plotted in my regular grid (5x3). So my i and j matrix
need to have the same dimension like my regular grid (5x3). There is also a
third matrix (only one-point-interpolation) wich contains my wind rotation
values (5x3).

In the documentation is written that i have to store the three matrices
(i,j,windrotation) into a binary file. But witch binary file type and wich
structure? I was also afraid  because i could not find any example-datasets in
the internet.

Does any of you have a better description for the PDEF function or a
sample-dataset wich show the features of this PDEF function?

It would be great if someone could help me.

Greetings
Reto Stauffer, Austria



--------------------------------------------------
--------------------------------------------------
--------------------------------------------------



Am 10.09.2009 um 20:00 schrieb Jennifer Adams:

That kind of data grid (with 2-dimensional coordinate variables) doesn't fit the
current gridded data model in GrADS. We have talked about implementing a new
data model, quasi-regular data, that would fall somewhere in between regular
grids and station data. But that is not likely to be implemented any time soon.
For now, interpolating to a regular grid with PDEF is the only way to handle
that kind of data directly using GrADS.
--Jennifer

On Sep 10, 2009, at 11:37 AM, Christopher Lynnes wrote:

Jennifer,
  The PDEF GENERAL capability looks quite useful, but made me wonder
if GrADS does or will support variable grids in netCDF, where the data
are defined according to the CF-1 convention for two-dimensional
latitude and longitude coordinate variables
(http://cf-pcmdi.llnl.gov/documents/cf-conventions/1.4/cf-conventions.html#id2984605
).
  We have a service to convert our AIRS swath data to netCDF files
with this convention, which allows tools such as IDV and McIDAS-V to
read and project them.  However, attempting an sdfopen in grads
2.0.a7.1 leads to the "no discernable X coordinate" error.
  An example file can be obtained via the URL:
http://aurapar2u.ecs.nasa.gov/airspar1/daac-bin/OTF/HTTP_services.cgi?FILENAME=%2Fdata%2Fs4pa%2FAqua_AIRS_Level2%2FAIRX2RET.005%2F2006%2F161%2FAIRS.2006.06.10.202.L2.RetStd.v5.0.14.0.G07345043455.hdf&LABEL=AIRS.2006.06.10.202.L2.RetStd.v5.0.14.0.G07345043455.nc&SHORTNAME=AIRX2RET&SERVICE=NetCDF&VERSION=1.02

On Sep 10, 2009, at 7:58 AM, Jennifer Adams wrote:

You can use the PDEF GENERAL (aka PDEF FILE) option to tell GrADS
how to map each grid point in your 1-D vector into a 2-D lat/lon
grid. Please see http://www.iges.org/grads/gadoc/pdef.html
The example at the bottom of the page does something very similar to
what you'd like to do.
--Jennifer

On Sep 9, 2009, at 7:03 AM, Reto Stauffer wrote:

Hy there

I try to plot some Satellite-Data with Grads. It was "no problem"
to produce a
netCDF file wich i can import into GrADS and display the test-
dataset.

But now i have a question up to you. Normaly GrADS plots only onto
a linear
Grid. My netCDF-File only contains a one-line-vector with longitude
and
latitude boundries.

Is there any possibility to import long/lat as a 2-D matrix wich
discribes my
own grid? I cannot found any good information about that.

Test-Dataset, int [0;10] with own colormap:
http://dudecom.ch/satpress/wp-content/uploads/2009/09/20090909_grads_colormapexample-543x400.png

If anyone has an idea it wold be great to send me a request.

Best regards
Reto, Austria

--
Jennifer M. Adams
IGES/COLA
4041 Powder Mill Road, Suite 302
Calverton, MD 20705
jma at cola.iges.org




--
Christopher Lynnes             NASA/GSFC, Code 610.2
301-614-5185

--
Jennifer M. Adams
IGES/COLA
4041 Powder Mill Road, Suite 302
Calverton, MD 20705
jma at cola.iges.org


From jma at COLA.IGES.ORG  Wed Sep 30 10:22:47 2009
From: jma at COLA.IGES.ORG (Jennifer Adams)
Date: Wed, 30 Sep 2009 10:22:47 -0400
Subject: Variable Grid possible?
In-Reply-To: <1254318684.4ac3625cb405b@web-mail1.uibk.ac.at>
Message-ID: <WED.30.SEP.2009.102247.0400.>

If you are planning to use PDEF BILIN, then the i, j, and rotation
grids are floating point grids, sized according to the XDEF and YDEF
records in your descriptor file (in your example, 5x3). The format can
be sequential or stream, and the byte order can be big or little-
endian -- whatever is easier for you to create. The format specs are
provided by you in the PDEF BILIN entry of your descriptor file. With
PDEF BILIN, the i and j values you provide are assumed to be non-
integers, and four nearest neighbors are bi-linearly interpolated to
get the value for each grid point in your rectilinear grid.

If you want to use one-point interpolation (map a single grid point in
the native grid to a location in the rectilinear grid), then use PDEF
GENERAL with the "num" argument equal to 1. In this case, your three
grids will contain index values (not i or j but i*isize+j), weights
(all 1's), and rotation values. From the PDEF doc:
"The num argument in the PDEF GENERAL entry specifies the number of
native grid points that will be used to calcuate each interpolated
rectilinear grid point value. For each num, the supplementary data
file will contain two grids -- both will be the size of the
rectilinear grid (as defined by XDEF and YDEF). The first grid
contains the index or offset values that point to the native grid
value that will be used in the interpolation; the second grid contains
the weights for those native grid values. The first grid contains
integer values, the second grid contains floating-point values.
Finally, the supplementary data file must also contain one grid of
floating-point wind rotation values. Thus if num equals 1, there will
be 3 grids in fname. If num equals 3, there will be 7 grids infname (3
sets of 2 grids plus the wind rotation grid)."
--Jennifer


On Sep 30, 2009, at 9:51 AM, Reto Stauffer wrote:

> Dear Usergroup
>
> A few weeks ago you sent me a wonderful hint about the topic
> "Variable Grid
> possible?" (you can see the answers below).
> I did some web-research but i could not find any good help topics.
>
> What i understood (about the PDEF function):
> - I have a data matrix (data-value, longitude, latitude) (for ex.
> 10x5)
> - I have a GrADS-internal regular Grid, for example XDEF 5 LINEAR 0
> 10, YDEF 3
> LINEAR 0 10 (-> 5x3)
> - I compute a interpolation matrix wich describes wich value (from
> my original
> 10x5 matrix) should be plotted in my regular grid (5x3). So my i and
> j matrix
> need to have the same dimension like my regular grid (5x3). There is
> also a
> third matrix (only one-point-interpolation) wich contains my wind
> rotation
> values (5x3).
>
> In the documentation is written that i have to store the three
> matrices
> (i,j,windrotation) into a binary file. But witch binary file type
> and wich
> structure? I was also afraid  because i could not find any example-
> datasets in
> the internet.
>
> Does any of you have a better description for the PDEF function or a
> sample-dataset wich show the features of this PDEF function?
>
> It would be great if someone could help me.
>
> Greetings
> Reto Stauffer, Austria
>
>
>
> --------------------------------------------------
> --------------------------------------------------
> --------------------------------------------------
>
>
>
> Am 10.09.2009 um 20:00 schrieb Jennifer Adams:
>
> That kind of data grid (with 2-dimensional coordinate variables)
> doesn't fit the
> current gridded data model in GrADS. We have talked about
> implementing a new
> data model, quasi-regular data, that would fall somewhere in between
> regular
> grids and station data. But that is not likely to be implemented any
> time soon.
> For now, interpolating to a regular grid with PDEF is the only way
> to handle
> that kind of data directly using GrADS.
> --Jennifer
>
> On Sep 10, 2009, at 11:37 AM, Christopher Lynnes wrote:
>
> Jennifer,
>  The PDEF GENERAL capability looks quite useful, but made me wonder
> if GrADS does or will support variable grids in netCDF, where the data
> are defined according to the CF-1 convention for two-dimensional
> latitude and longitude coordinate variables
> (http://cf-pcmdi.llnl.gov/documents/cf-conventions/1.4/cf-conventions.html#id2984605
> ).
>  We have a service to convert our AIRS swath data to netCDF files
> with this convention, which allows tools such as IDV and McIDAS-V to
> read and project them.  However, attempting an sdfopen in grads
> 2.0.a7.1 leads to the "no discernable X coordinate" error.
>  An example file can be obtained via the URL:
> http://aurapar2u.ecs.nasa.gov/airspar1/daac-bin/OTF/HTTP_services.cgi?FILENAME=%2Fdata%2Fs4pa%2FAqua_AIRS_Level2%2FAIRX2RET.005%2F2006%2F161%2FAIRS.2006.06.10.202.L2.RetStd.v5.0.14.0.G07345043455.hdf&LABEL=AIRS.2006.06.10.202.L2.RetStd.v5.0.14.0.G07345043455.nc&SHORTNAME=AIRX2RET&SERVICE=NetCDF&VERSION=1.02
>
> On Sep 10, 2009, at 7:58 AM, Jennifer Adams wrote:
>
> You can use the PDEF GENERAL (aka PDEF FILE) option to tell GrADS
> how to map each grid point in your 1-D vector into a 2-D lat/lon
> grid. Please see http://www.iges.org/grads/gadoc/pdef.html
> The example at the bottom of the page does something very similar to
> what you'd like to do.
> --Jennifer
>
> On Sep 9, 2009, at 7:03 AM, Reto Stauffer wrote:
>
> Hy there
>
> I try to plot some Satellite-Data with Grads. It was "no problem"
> to produce a
> netCDF file wich i can import into GrADS and display the test-
> dataset.
>
> But now i have a question up to you. Normaly GrADS plots only onto
> a linear
> Grid. My netCDF-File only contains a one-line-vector with longitude
> and
> latitude boundries.
>
> Is there any possibility to import long/lat as a 2-D matrix wich
> discribes my
> own grid? I cannot found any good information about that.
>
> Test-Dataset, int [0;10] with own colormap:
> http://dudecom.ch/satpress/wp-content/uploads/2009/09/20090909_grads_colormapexample-543x400.png
>
> If anyone has an idea it wold be great to send me a request.
>
> Best regards
> Reto, Austria
>
> --
> Jennifer M. Adams
> IGES/COLA
> 4041 Powder Mill Road, Suite 302
> Calverton, MD 20705
> jma at cola.iges.org
>
>
>
>
> --
> Christopher Lynnes             NASA/GSFC, Code 610.2
> 301-614-5185
>
> --
> Jennifer M. Adams
> IGES/COLA
> 4041 Powder Mill Road, Suite 302
> Calverton, MD 20705
> jma at cola.iges.org

--
Jennifer M. Adams
IGES/COLA
4041 Powder Mill Road, Suite 302
Calverton, MD 20705
jma at cola.iges.org



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From ousmane at IRI.COLUMBIA.EDU  Wed Sep 30 10:58:43 2009
From: ousmane at IRI.COLUMBIA.EDU (Ousmane Ndiaye)
Date: Wed, 30 Sep 2009 10:58:43 -0400
Subject: difference between variables on different grid
In-Reply-To: <17468880.775841254322005290.JavaMail.root@iripogo1.ldeo.columbia.edu>
Message-ID: <WED.30.SEP.2009.105843.0400.>

Hi,
I have two files on different grids starting at different times, I want to calculate the difference of their monthly climatology over a common period.
I used the function re to regrid the two variables first then calculate their climatology but I cannot compute the difference of the climatology (ie bias).
Any help ?
Ousmane

==
'reinit'
'sdfopen air.mon.mean.nc'
'set lon 0 360'
'set lat -90 90'
'set t 265 516'
'air2=re(air,2.5)'
'set t 265 276'
'define clim1=tloop(ave(air2,t+0,t=516))'
*'modify clim1 seasonal'
'set t 1'
'sdfopen tas_A1.nc'
'set dfile 2'
'set lon 0 360'
'set lat -90 90'
'set t 1321 1572'
'tas2=re(tas.2,2.5)'
'set t 1321 1332'
'define clim2=tloop(ave(tas2,t+0,t=1572))'
==


From Pablo.Santos at NOAA.GOV  Wed Sep 30 11:04:47 2009
From: Pablo.Santos at NOAA.GOV (Pablo Santos)
Date: Wed, 30 Sep 2009 11:04:47 -0400
Subject: Plotting RTOFS grib2 data in Grads - Problems
Message-ID: <WED.30.SEP.2009.110447.0400.>

Hi:

I am attempting to plot data from the following file:

http://www.ftp.ncep.noaa.gov/data/nccf/com/ofs/prod/ofs.20090930/ofs_atl.t00z.n000.grb.grib2

When I run it through the g2ctl.pl utility I get the output below.
Notice the pdef line. Further below I take this output from a .ctl file
and run it through the gribmap -i command and get the error message
shown complaining about the pdef line. Does anyone know what I need to
do to get passed this?

Thanks, Pablo

[ifps at MFL-LW-WAVES ncep_hourly]$ g2ctl.pl ofs_atl.t00z.n000.grb.grib2
dset ^ofs_atl.t00z.n000.grb.grib2
index ^ofs_atl.t00z.n000.grb.grib2.idx
undef 9.999E+20
title ofs_atl.t00z.n000.grb.grib2
*  produced by g2ctl v0.0.4n
* griddef=1:0:(1200 x 1684):grid_template=204:Curvilinear Orthongonal
grid: see lat lon fields in this grib file:winds(grid)

dtype grib2
pdef 1200 1684 bilin sequential binary-big pdef_ncep_12.atl
xdef 1300  linear -105.04 0.1325
ydef 1500  linear -25.2   0.0678
tdef 1 linear 00Z29sep2009 1mo
zdef 1 linear 1 1
vars 15
LAPPsfc   0,1,0   0,2,202 ** surface Latitude of Presure Point [deg]
LAUVsfc   0,1,0   0,2,198 ** surface Latitude of U Wind Component of
Velocity [deg]
LAVVsfc   0,1,0   0,2,200 ** surface Latitude of V Wind Component of
Velocity [deg]
LOPPsfc   0,1,0   0,2,203 ** surface Longitude of Presure Point [deg]
LOUVsfc   0,1,0   0,2,199 ** surface Longitude of U Wind Component of
Velocity [deg]
LOVVsfc   0,1,0   0,2,201 ** surface Longitude of V Wind Component of
Velocity [deg]
MIXHTsfc   0,1,0   0,19,3 ** surface Mixed Layer Depth [m]
MNTSFsfc   0,1,0   0,2,6 ** surface Montgomery Stream Function [m^2/s]
SALINhl1p5  0,105,1,2   10,4,193 ** 1 hybrid level - 2 hybrid level 3-D
Salinity [-]
SSHGsfc   0,1,0   10,3,195 ** surface Sea Surface Height Relative to
Geoid [m]
UBAROocn   0,201,0   10,1,194 ** entire ocean (considered as a single
layer) Barotropic U velocity [m/s]
UOGRDhl1p5  0,105,1,2   10,1,2 ** 1 hybrid level - 2 hybrid level
U-Component of Current [m/s]
VBAROocn   0,201,0   10,1,195 ** entire ocean (considered as a single
layer) Barotropic V velocity [m/s]
VOGRDhl1p5  0,105,1,2   10,1,3 ** 1 hybrid level - 2 hybrid level
V-Component of Current [m/s]
WTMPChl1p5  0,105,1,2   10,4,192 ** 1 hybrid level - 2 hybrid level 3-D
Temperature [degc]
ENDVARS
[ifps at MFL-LW-WAVES ncep_hourly]$

[ifps at MFL-LW-WAVES ncep_hourly]$ gribmap -i test2.ctl
  Error opening pdef file:  pdef_ncep_12.atl
Open Error: Invalid pdef record.
  --> The invalid description file record is:
  --> pdef 1200 1684 bilin sequential binary-big pdef_ncep_12.atl
  The data file was not opened.
[ifps at MFL-LW-WAVES ncep_hourly]$


From Pablo.Santos at NOAA.GOV  Wed Sep 30 11:42:56 2009
From: Pablo.Santos at NOAA.GOV (Pablo Santos)
Date: Wed, 30 Sep 2009 11:42:56 -0400
Subject: Plotting RTOFS grib2 data in Grads - Problems
In-Reply-To: <4AC3738F.3080504@noaa.gov>
Message-ID: <WED.30.SEP.2009.114256.0400.>

Well:

I was directed to download pdef_ncep_12.atl. Now I got passed that but
am getting the following error when I run the control file through the
gribmap -i command:

gribmap -i test2.ctl
grib2map: scanning GRIB2 file: ofs_atl.t00z.n000.grb.grib2
getgridtemplate: GDT Template 3.204 not defined.
grib2map error: g2_getfld failed: ierr=10

Any suggestions on how to get passed this. I am looking into converting
the file to grib1 and see if I am luckier now. But thought I ask anyhow
in case someone knows.

Thanks,

Pablo

Pablo Santos wrote:
> Hi:
>
> I am attempting to plot data from the following file:
>
> http://www.ftp.ncep.noaa.gov/data/nccf/com/ofs/prod/ofs.20090930/ofs_atl.t00z.n000.grb.grib2
>
>
> When I run it through the g2ctl.pl utility I get the output below.
> Notice the pdef line. Further below I take this output from a .ctl
> file and run it through the gribmap -i command and get the error
> message shown complaining about the pdef line. Does anyone know what I
> need to do to get passed this?
>
> Thanks, Pablo
>
> [ifps at MFL-LW-WAVES ncep_hourly]$ g2ctl.pl ofs_atl.t00z.n000.grb.grib2
> dset ^ofs_atl.t00z.n000.grb.grib2
> index ^ofs_atl.t00z.n000.grb.grib2.idx
> undef 9.999E+20
> title ofs_atl.t00z.n000.grb.grib2
> *  produced by g2ctl v0.0.4n
> * griddef=1:0:(1200 x 1684):grid_template=204:Curvilinear Orthongonal
> grid: see lat lon fields in this grib file:winds(grid)
>
> dtype grib2
> pdef 1200 1684 bilin sequential binary-big pdef_ncep_12.atl
> xdef 1300  linear -105.04 0.1325
> ydef 1500  linear -25.2   0.0678
> tdef 1 linear 00Z29sep2009 1mo
> zdef 1 linear 1 1
> vars 15
> LAPPsfc   0,1,0   0,2,202 ** surface Latitude of Presure Point [deg]
> LAUVsfc   0,1,0   0,2,198 ** surface Latitude of U Wind Component of
> Velocity [deg]
> LAVVsfc   0,1,0   0,2,200 ** surface Latitude of V Wind Component of
> Velocity [deg]
> LOPPsfc   0,1,0   0,2,203 ** surface Longitude of Presure Point [deg]
> LOUVsfc   0,1,0   0,2,199 ** surface Longitude of U Wind Component of
> Velocity [deg]
> LOVVsfc   0,1,0   0,2,201 ** surface Longitude of V Wind Component of
> Velocity [deg]
> MIXHTsfc   0,1,0   0,19,3 ** surface Mixed Layer Depth [m]
> MNTSFsfc   0,1,0   0,2,6 ** surface Montgomery Stream Function [m^2/s]
> SALINhl1p5  0,105,1,2   10,4,193 ** 1 hybrid level - 2 hybrid level
> 3-D Salinity [-]
> SSHGsfc   0,1,0   10,3,195 ** surface Sea Surface Height Relative to
> Geoid [m]
> UBAROocn   0,201,0   10,1,194 ** entire ocean (considered as a single
> layer) Barotropic U velocity [m/s]
> UOGRDhl1p5  0,105,1,2   10,1,2 ** 1 hybrid level - 2 hybrid level
> U-Component of Current [m/s]
> VBAROocn   0,201,0   10,1,195 ** entire ocean (considered as a single
> layer) Barotropic V velocity [m/s]
> VOGRDhl1p5  0,105,1,2   10,1,3 ** 1 hybrid level - 2 hybrid level
> V-Component of Current [m/s]
> WTMPChl1p5  0,105,1,2   10,4,192 ** 1 hybrid level - 2 hybrid level
> 3-D Temperature [degc]
> ENDVARS
> [ifps at MFL-LW-WAVES ncep_hourly]$
>
> [ifps at MFL-LW-WAVES ncep_hourly]$ gribmap -i test2.ctl
>  Error opening pdef file:  pdef_ncep_12.atl
> Open Error: Invalid pdef record.
>  --> The invalid description file record is:
>  --> pdef 1200 1684 bilin sequential binary-big pdef_ncep_12.atl
>  The data file was not opened.
> [ifps at MFL-LW-WAVES ncep_hourly]$
>


From Wesley.Ebisuzaki at NOAA.GOV  Wed Sep 30 11:59:18 2009
From: Wesley.Ebisuzaki at NOAA.GOV (Wesley Ebisuzaki)
Date: Wed, 30 Sep 2009 11:59:18 -0400
Subject: Plotting RTOFS grib2 data in Grads - Problems
In-Reply-To: <4AC3738F.3080504@noaa.gov>
Message-ID: <WED.30.SEP.2009.115918.0400.>

Pablo,

The file,  pdef_ncep_12.atl, can be found at


http://nomad1.ncep.noaa.gov/pub/raid3/rtofs_native/daily/ofs.20090928/pdef_ncep_12.atl

This is a binary file which has to be saved.  (YMMV but my browser pops
a window asking whether
to save the binary file.)

        Wesley Ebisuzaki


Pablo Santos wrote:
> Hi:
>
> I am attempting to plot data from the following file:
>
> http://www.ftp.ncep.noaa.gov/data/nccf/com/ofs/prod/ofs.20090930/ofs_atl.t00z.n000.grb.grib2
>
>
> When I run it through the g2ctl.pl utility I get the output below.
> Notice the pdef line. Further below I take this output from a .ctl file
> and run it through the gribmap -i command and get the error message
> shown complaining about the pdef line. Does anyone know what I need to
> do to get passed this?
>
> Thanks, Pablo
>
> [ifps at MFL-LW-WAVES ncep_hourly]$ g2ctl.pl ofs_atl.t00z.n000.grb.grib2
> dset ^ofs_atl.t00z.n000.grb.grib2
> index ^ofs_atl.t00z.n000.grb.grib2.idx
> undef 9.999E+20
> title ofs_atl.t00z.n000.grb.grib2
> *  produced by g2ctl v0.0.4n
> * griddef=1:0:(1200 x 1684):grid_template=204:Curvilinear Orthongonal
> grid: see lat lon fields in this grib file:winds(grid)
>
> dtype grib2
> pdef 1200 1684 bilin sequential binary-big pdef_ncep_12.atl
> xdef 1300  linear -105.04 0.1325
> ydef 1500  linear -25.2   0.0678
> tdef 1 linear 00Z29sep2009 1mo
> zdef 1 linear 1 1
> vars 15
> LAPPsfc   0,1,0   0,2,202 ** surface Latitude of Presure Point [deg]
> LAUVsfc   0,1,0   0,2,198 ** surface Latitude of U Wind Component of
> Velocity [deg]
> LAVVsfc   0,1,0   0,2,200 ** surface Latitude of V Wind Component of
> Velocity [deg]
> LOPPsfc   0,1,0   0,2,203 ** surface Longitude of Presure Point [deg]
> LOUVsfc   0,1,0   0,2,199 ** surface Longitude of U Wind Component of
> Velocity [deg]
> LOVVsfc   0,1,0   0,2,201 ** surface Longitude of V Wind Component of
> Velocity [deg]
> MIXHTsfc   0,1,0   0,19,3 ** surface Mixed Layer Depth [m]
> MNTSFsfc   0,1,0   0,2,6 ** surface Montgomery Stream Function [m^2/s]
> SALINhl1p5  0,105,1,2   10,4,193 ** 1 hybrid level - 2 hybrid level 3-D
> Salinity [-]
> SSHGsfc   0,1,0   10,3,195 ** surface Sea Surface Height Relative to
> Geoid [m]
> UBAROocn   0,201,0   10,1,194 ** entire ocean (considered as a single
> layer) Barotropic U velocity [m/s]
> UOGRDhl1p5  0,105,1,2   10,1,2 ** 1 hybrid level - 2 hybrid level
> U-Component of Current [m/s]
> VBAROocn   0,201,0   10,1,195 ** entire ocean (considered as a single
> layer) Barotropic V velocity [m/s]
> VOGRDhl1p5  0,105,1,2   10,1,3 ** 1 hybrid level - 2 hybrid level
> V-Component of Current [m/s]
> WTMPChl1p5  0,105,1,2   10,4,192 ** 1 hybrid level - 2 hybrid level 3-D
> Temperature [degc]
> ENDVARS
> [ifps at MFL-LW-WAVES ncep_hourly]$
>
> [ifps at MFL-LW-WAVES ncep_hourly]$ gribmap -i test2.ctl
>  Error opening pdef file:  pdef_ncep_12.atl
> Open Error: Invalid pdef record.
>  --> The invalid description file record is:
>  --> pdef 1200 1684 bilin sequential binary-big pdef_ncep_12.atl
>  The data file was not opened.
> [ifps at MFL-LW-WAVES ncep_hourly]$


From Wesley.Ebisuzaki at NOAA.GOV  Wed Sep 30 12:08:24 2009
From: Wesley.Ebisuzaki at NOAA.GOV (Wesley Ebisuzaki)
Date: Wed, 30 Sep 2009 12:08:24 -0400
Subject: Plotting RTOFS grib2 data in Grads - Problems
In-Reply-To: <4AC37C80.2080802@noaa.gov>
Message-ID: <WED.30.SEP.2009.120824.0400.>

Pablo,

   The "GDT Template ... not defined message" means that you are using a
old version
of g2clib.  Perhaps a new version of GrADS includes the latest g2clib.
If not recompile
GrADS with the current version of g2clib.  (Works for me.)

       Wesley Ebisuzaki




Pablo Santos wrote:
> Well:
>
> I was directed to download pdef_ncep_12.atl. Now I got passed that but
> am getting the following error when I run the control file through the
> gribmap -i command:
>
> gribmap -i test2.ctl
> grib2map: scanning GRIB2 file: ofs_atl.t00z.n000.grb.grib2
> getgridtemplate: GDT Template 3.204 not defined.
> grib2map error: g2_getfld failed: ierr=10
>
> Any suggestions on how to get passed this. I am looking into converting
> the file to grib1 and see if I am luckier now. But thought I ask anyhow
> in case someone knows.
>
> Thanks,
>
> Pablo
>
> Pablo Santos wrote:
>> Hi:
>>
>> I am attempting to plot data from the following file:
>>
>> http://www.ftp.ncep.noaa.gov/data/nccf/com/ofs/prod/ofs.20090930/ofs_atl.t00z.n000.grb.grib2
>>
>>
>>
>> When I run it through the g2ctl.pl utility I get the output below.
>> Notice the pdef line. Further below I take this output from a .ctl
>> file and run it through the gribmap -i command and get the error
>> message shown complaining about the pdef line. Does anyone know what I
>> need to do to get passed this?
>>
>> Thanks, Pablo
>>
>> [ifps at MFL-LW-WAVES ncep_hourly]$ g2ctl.pl ofs_atl.t00z.n000.grb.grib2
>> dset ^ofs_atl.t00z.n000.grb.grib2
>> index ^ofs_atl.t00z.n000.grb.grib2.idx
>> undef 9.999E+20
>> title ofs_atl.t00z.n000.grb.grib2
>> *  produced by g2ctl v0.0.4n
>> * griddef=1:0:(1200 x 1684):grid_template=204:Curvilinear Orthongonal
>> grid: see lat lon fields in this grib file:winds(grid)
>>
>> dtype grib2
>> pdef 1200 1684 bilin sequential binary-big pdef_ncep_12.atl
>> xdef 1300  linear -105.04 0.1325
>> ydef 1500  linear -25.2   0.0678
>> tdef 1 linear 00Z29sep2009 1mo
>> zdef 1 linear 1 1
>> vars 15
>> LAPPsfc   0,1,0   0,2,202 ** surface Latitude of Presure Point [deg]
>> LAUVsfc   0,1,0   0,2,198 ** surface Latitude of U Wind Component of
>> Velocity [deg]
>> LAVVsfc   0,1,0   0,2,200 ** surface Latitude of V Wind Component of
>> Velocity [deg]
>> LOPPsfc   0,1,0   0,2,203 ** surface Longitude of Presure Point [deg]
>> LOUVsfc   0,1,0   0,2,199 ** surface Longitude of U Wind Component of
>> Velocity [deg]
>> LOVVsfc   0,1,0   0,2,201 ** surface Longitude of V Wind Component of
>> Velocity [deg]
>> MIXHTsfc   0,1,0   0,19,3 ** surface Mixed Layer Depth [m]
>> MNTSFsfc   0,1,0   0,2,6 ** surface Montgomery Stream Function [m^2/s]
>> SALINhl1p5  0,105,1,2   10,4,193 ** 1 hybrid level - 2 hybrid level
>> 3-D Salinity [-]
>> SSHGsfc   0,1,0   10,3,195 ** surface Sea Surface Height Relative to
>> Geoid [m]
>> UBAROocn   0,201,0   10,1,194 ** entire ocean (considered as a single
>> layer) Barotropic U velocity [m/s]
>> UOGRDhl1p5  0,105,1,2   10,1,2 ** 1 hybrid level - 2 hybrid level
>> U-Component of Current [m/s]
>> VBAROocn   0,201,0   10,1,195 ** entire ocean (considered as a single
>> layer) Barotropic V velocity [m/s]
>> VOGRDhl1p5  0,105,1,2   10,1,3 ** 1 hybrid level - 2 hybrid level
>> V-Component of Current [m/s]
>> WTMPChl1p5  0,105,1,2   10,4,192 ** 1 hybrid level - 2 hybrid level
>> 3-D Temperature [degc]
>> ENDVARS
>> [ifps at MFL-LW-WAVES ncep_hourly]$
>>
>> [ifps at MFL-LW-WAVES ncep_hourly]$ gribmap -i test2.ctl
>>  Error opening pdef file:  pdef_ncep_12.atl
>> Open Error: Invalid pdef record.
>>  --> The invalid description file record is:
>>  --> pdef 1200 1684 bilin sequential binary-big pdef_ncep_12.atl
>>  The data file was not opened.
>> [ifps at MFL-LW-WAVES ncep_hourly]$
>>


From yi_zhou01 at YAHOO.CA  Wed Sep 30 16:02:13 2009
From: yi_zhou01 at YAHOO.CA (Emily)
Date: Wed, 30 Sep 2009 13:02:13 -0700
Subject: fwrite a grib data file from nc data
Message-ID: <WED.30.SEP.2009.130213.0700.>

Hi group memeber,

I write a gs file to create a data set which is time series changing with height.
My original data is NARR netCDF data sets (8 times per day)
The ddf file as below:
==========
DSET d:\gradsfile\ncdata\uwnd.200812.nc
DTYPE netcdf
TITLE NARR 4D field Lambert Conformal Conic projection
UNDEF 32766 missing_value
UNPACK scale_factor=0.01f add_offset=47.66f
PDEF 349 277 lcc 1 -145.5 1 1 50 50 -107 32463.41 32463.41
XDEF 615 linear 150 0.3333
YDEF 255 linear 2 0.3333
ZDEF 29 levels 1000, 975, 950, 925, 900, 875, 850, 825, 800, 775, 750, 725, 700,
?650, 600, 550, 500, 450, 400, 350, 300, 275, 250, 225, 200, 175, 150, 125, 100
tdef 248 linear 00:00z01dec2008 3hr
vars 3
uwnd 29 t,z,y,x? grid_eastward_wind
lat=>glat 0 y,x Latitude
lon=>glon 0 y,x
 Longitude
endvars
===============
vwnd200812.ddf is simillar with above.

My gs file as below:
=============
'reinit'
'open d:\gradsfile\ncdata\uwnd200812.ddf'
'open d:\gradsfile\ncdata\vwnd200812.ddf'
*'set grads off'
*'set grid off'
'set gxout fwrite'
'set fwrite d:\gradsfile\ncdata\wind-height09z28dec2008.grd'
'set dfile 1'
'set lon 283.3'
'set lat 43.66'
*'set time 09z28dec2008'
'set dfile 2'
'set lon 283.3'
'set lat 43.66'
*'set time 09z28dec2008'
h=1000
t0=218
while(t0<222)
'set t 't0''
while(h>850)
'set lev 'h''
'u=0.01*uwnd.1+47.66'
'v=0.01*vwnd.2+47.66'
'wind=mag(u,v)'
'd wind'
h=h-25
endwhile
t0=t0+1
endwhile
say 'ok'
===============
My ctl file is as below:
==========
DSET d:\gradsfile\ncdata\wind-height09z28dec2008.grd'
DTYPE grib
TITLE Wind-Height 09z12dec2008
UNDEF 32766 missing_value
XDEF 1 linear 1
 1
YDEF 1 linear 1 1
ZDEF 7 levels 1000, 975, 950, 925, 900, 875, 850
tdef 5 linear 03z28dec2008 3hr
vars 1
wind 7 99 wind_height
endvars
=========
When I open the ctl file from Grads, it shows:
?can not open station/index map file (null)
the data file was not open.

I don't know what's wrong with it. Is there any one can tell me the reason? Thanks.

Regards


Emily

York University, Toronto
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From ela at COLA.IGES.ORG  Wed Sep 30 17:18:18 2009
From: ela at COLA.IGES.ORG (Eric Altshuler)
Date: Wed, 30 Sep 2009 17:18:18 -0400
Subject: fwrite a grib data file from nc data
In-Reply-To: <1524399365.105771254345496036.JavaMail.root@mail.iges.org>
Message-ID: <WED.30.SEP.2009.171818.0400.>

Hi Emily,

fwrite writes data in binary format, not GRIB. Remove the line 'DTYPE grib' from the ctl file. You also have two bugs in your script:

while (t0<222)

should be:

while (t0<=222)

and also

while (h>850)

should be:

while (h>=850)

Using < and >, the values for t=222 and lev=850 will not be written because the last iteration of the loops will be for t=221 and lev=875.

I also don't see any entry for the v wind in your ctl file for the netcdf data. If it is not in the dataset, your wind speed calculation will fail because of missing v wind.

Best regards,

Eric L. Altshuler
Assistant Research Scientist
Center for Ocean-Land-Atmosphere Studies
4041 Powder Mill Road, Suite 302
Calverton, MD 20705-3106
USA

E-mail: ela at cola.iges.org
Phone: (301) 902-1257
Fax: (301) 595-9793

----- Original Message -----
From: "Emily" <yi_zhou01 at YAHOO.CA>
To: GRADSUSR at LIST.CINECA.IT
Sent: Wednesday, September 30, 2009 4:02:13 PM GMT -05:00 US/Canada Eastern
Subject: fwrite a grib data file from nc data


Hi group memeber,

I write a gs file to create a data set which is time series changing with height.
My original data is NARR netCDF data sets (8 times per day)
The ddf file as below:
==========
DSET d:\gradsfile\ncdata\uwnd.200812.nc
DTYPE netcdf
TITLE NARR 4D field Lambert Conformal Conic projection
UNDEF 32766 missing_value
UNPACK scale_factor=0.01f add_offset=47.66f
PDEF 349 277 lcc 1 -145.5 1 1 50 50 -107 32463.41 32463.41
XDEF 615 linear 150 0.3333
YDEF 255 linear 2 0.3333
ZDEF 29 levels 1000, 975, 950, 925, 900, 875, 850, 825, 800, 775, 750, 725, 700,
650, 600, 550, 500, 450, 400, 350, 300, 275, 250, 225, 200, 175, 150, 125, 100
tdef 248 linear 00:00z01dec2008 3hr
vars 3
uwnd 29 t,z,y,x grid_eastward_wind
lat=>glat 0 y,x Latitude
lon=>glon 0 y,x Longitude
endvars
===============
vwnd200812.ddf is simillar with above.

My gs file as below:
=============
'reinit'
'open d:\gradsfile\ncdata\uwnd200812.ddf'
'open d:\gradsfile\ncdata\vwnd200812.ddf'
*'set grads off'
*'set grid off'
'set gxout fwrite'
'set fwrite d:\gradsfile\ncdata\wind-height09z28dec2008.grd'
'set dfile 1'
'set lon 283.3'
'set lat 43.66'
*'set time 09z28dec2008'
'set dfile 2'
'set lon 283.3'
'set lat 43.66'
*'set time 09z28dec2008'
h=1000
t0=218
while(t0<222)
'set t 't0''
while(h>850)
'set lev 'h''
'u=0.01*uwnd.1+47.66'
'v=0.01*vwnd.2+47.66'
'wind=mag(u,v)'
'd wind'
h=h-25
endwhile
t0=t0+1
endwhile
say 'ok'
===============
My ctl file is as below:
==========
DSET d:\gradsfile\ncdata\wind-height09z28dec2008.grd'
DTYPE grib
TITLE Wind-Height 09z12dec2008
UNDEF 32766 missing_value
XDEF 1 linear 1 1
YDEF 1 linear 1 1
ZDEF 7 levels 1000, 975, 950, 925, 900, 875, 850
tdef 5 linear 03z28dec2008 3hr
vars 1
wind 7 99 wind_height
endvars
=========
When I open the ctl file from Grads, it shows:
can not open station/index map file (null)
the data file was not open.

I don't know what's wrong with it. Is there any one can tell me the reason? Thanks.

Regards


Emily
York University, Toronto


From yi_zhou01 at YAHOO.CA  Wed Sep 30 21:47:24 2009
From: yi_zhou01 at YAHOO.CA (Emily)
Date: Wed, 30 Sep 2009 18:47:24 -0700
Subject: fwrite a grib data file from nc data
In-Reply-To: <1512073072.105791254345498740.JavaMail.root@mail.iges.org>
Message-ID: <WED.30.SEP.2009.184724.0700.>

Hi Eric,

Thank you for figuring out the bugs. I corrected the problems, and rerun the gs to get a new grd file. However after scaning the discription file, it still can not open the binary file. It shows:

open error, cann't open the binary file.
My grads version is grads2.0 a3 for window XP.

BTW, my vwnd ddf file as below:
================
DSET d:\gradsfile\ncdata\vwnd.200812.nc
DTYPE netcdf
TITLE NARR 4D field Lambert Conformal Conic projection
UNDEF 32766 missing_value
UNPACK scale_factor=0.01f add_offset=47.66f
PDEF 349 277 lcc 1 -145.5 1 1 50 50 -107 32463.41 32463.41
XDEF 615 linear 150 0.3333
YDEF 255 linear 2 0.3333
ZDEF 29 levels 1000, 975, 950, 925, 900, 875, 850, 825, 800, 775, 750, 725, 700,
?650, 600, 550, 500, 450, 400, 350, 300, 275, 250, 225, 200, 175, 150, 125, 100
tdef 248 linear 00:00z01dec2008 3hr
vars 3
vwnd 29 t,z,y,x? grid_northward_wind
lat=>glat 0 y,x Latitude
lon=>glon 0 y,x Longitude
endvars
===========


Emily,
York University, Toronto

--- On Wed, 9/30/09, Eric Altshuler <ela at COLA.IGES.ORG> wrote:

From: Eric Altshuler <ela at COLA.IGES.ORG>
Subject: Re: fwrite a grib data file from nc data
To: GRADSUSR at LIST.CINECA.IT
Received: Wednesday, September 30, 2009, 5:18 PM

Hi Emily,

fwrite writes data in binary format, not GRIB. Remove the line 'DTYPE grib' from the ctl file. You also have two bugs in your script:

while (t0<222)

should be:

while (t0<=222)

and also

while (h>850)

should be:

while (h>=850)

Using < and >, the values for t=222 and lev=850 will not be written because the last iteration of the loops will be for t=221 and lev=875.

I also don't see any entry for the v wind in your ctl file for the netcdf data. If it is not in the dataset, your wind speed calculation will fail because of missing v wind.

Best regards,

Eric L. Altshuler
Assistant Research Scientist
Center for Ocean-Land-Atmosphere Studies
4041 Powder Mill Road, Suite 302
Calverton, MD 20705-3106
USA

E-mail: ela at cola.iges.org
Phone: (301) 902-1257
Fax: (301) 595-9793

----- Original Message -----
From: "Emily" <yi_zhou01 at YAHOO.CA>
To: GRADSUSR at LIST.CINECA.IT
Sent: Wednesday, September 30, 2009 4:02:13 PM GMT -05:00 US/Canada Eastern
Subject: fwrite a grib data file from nc data


Hi group memeber,

I write a gs file to create a data set which is time series changing with height.
My original data is NARR netCDF data sets (8 times per day)
The ddf file as below:
==========
DSET d:\gradsfile\ncdata\uwnd.200812.nc
DTYPE netcdf
TITLE NARR 4D field Lambert Conformal Conic projection
UNDEF 32766 missing_value
UNPACK scale_factor=0.01f add_offset=47.66f
PDEF 349 277 lcc 1 -145.5 1 1 50 50 -107 32463.41 32463.41
XDEF 615 linear 150 0.3333
YDEF 255 linear 2 0.3333
ZDEF 29 levels 1000, 975, 950, 925, 900, 875, 850, 825, 800, 775, 750, 725, 700,
650, 600, 550, 500, 450, 400, 350, 300, 275, 250, 225, 200, 175, 150, 125, 100
tdef 248 linear 00:00z01dec2008 3hr
vars 3
uwnd 29 t,z,y,x grid_eastward_wind
lat=>glat 0 y,x Latitude
lon=>glon 0 y,x Longitude
endvars
===============
vwnd200812.ddf is simillar with above.

My gs file as below:
=============
'reinit'
'open d:\gradsfile\ncdata\uwnd200812.ddf'
'open d:\gradsfile\ncdata\vwnd200812.ddf'
*'set grads off'
*'set grid off'
'set gxout fwrite'
'set fwrite d:\gradsfile\ncdata\wind-height09z28dec2008.grd'
'set dfile 1'
'set lon 283.3'
'set lat 43.66'
*'set time 09z28dec2008'
'set dfile 2'
'set lon 283.3'
'set lat 43.66'
*'set time 09z28dec2008'
h=1000
t0=218
while(t0<222)
'set t 't0''
while(h>850)
'set lev 'h''
'u=0.01*uwnd.1+47.66'
'v=0.01*vwnd.2+47.66'
'wind=mag(u,v)'
'd wind'
h=h-25
endwhile
t0=t0+1
endwhile
say 'ok'
===============
My ctl file is as below:
==========
DSET d:\gradsfile\ncdata\wind-height09z28dec2008.grd'
DTYPE grib
TITLE Wind-Height 09z12dec2008
UNDEF 32766 missing_value
XDEF 1 linear 1 1
YDEF 1 linear 1 1
ZDEF 7 levels 1000, 975, 950, 925, 900, 875, 850
tdef 5 linear 03z28dec2008 3hr
vars 1
wind 7 99 wind_height
endvars
=========
When I open the ctl file from Grads, it shows:
can not open station/index map file (null)
the data file was not open.

I don't know what's wrong with it. Is there any one can tell me the reason? Thanks.

Regards


Emily
York University, Toronto
-------------- next part --------------
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From ela at COLA.IGES.ORG  Wed Sep 30 22:20:32 2009
From: ela at COLA.IGES.ORG (Eric Altshuler)
Date: Wed, 30 Sep 2009 22:20:32 -0400
Subject: fwrite a grib data file from nc data
In-Reply-To: <1670465274.106521254363590084.JavaMail.root@mail.iges.org>
Message-ID: <WED.30.SEP.2009.222032.0400.>

Hi Emily,

What is the size of the binary file? It should be 7*5*4=140 bytes. If it's not that size, check your script for any bugs I may have missed. If it is 140 bytes, then I don't know why grads can't open the binary file. In fact, even if the file exists but has a size of 0 bytes, grads should open it. Make sure the file is actually being created. If it doesn't exist, I have no idea why.

Best regards,
Eric

----- Original Message -----
From: "Emily" <yi_zhou01 at YAHOO.CA>
To: GRADSUSR at LIST.CINECA.IT
Sent: Wednesday, September 30, 2009 9:47:24 PM GMT -05:00 US/Canada Eastern
Subject: Re: fwrite a grib data file from nc data

Hi Eric,

Thank you for figuring out the bugs. I corrected the problems, and rerun the gs to get a new grd file. However after scaning the discription file, it still can not open the binary file. It shows:

open error, cann't open the binary file.
My grads version is grads2.0 a3 for window XP.

BTW, my vwnd ddf file as below:
================
DSET d:\gradsfile\ncdata\vwnd.200812.nc
DTYPE netcdf
TITLE NARR 4D field Lambert Conformal Conic projection
UNDEF 32766 missing_value
UNPACK scale_factor=0.01f add_offset=47.66f
PDEF 349 277 lcc 1 -145.5 1 1 50 50 -107 32463.41 32463.41
XDEF 615 linear 150 0.3333
YDEF 255 linear 2 0.3333
ZDEF 29 levels 1000, 975, 950, 925, 900, 875, 850, 825, 800, 775, 750, 725, 700,
? 650, 600, 550, 500, 450, 400, 350, 300, 275, 250, 225, 200, 175, 150, 125, 100
tdef 248 linear 00:00z01dec2008 3hr
vars 3
vwnd 29 t,z,y,x?  grid_northward_wind
lat=>glat 0 y,x Latitude
lon=>glon 0 y,x Longitude
endvars
===========


Emily,
York University, Toronto

--- On Wed, 9/30/09, Eric Altshuler <ela at COLA.IGES.ORG> wrote:



From: Eric Altshuler <ela at COLA.IGES.ORG>
Subject: Re: fwrite a grib data file from nc data
To: GRADSUSR at LIST.CINECA.IT
Received: Wednesday, September 30, 2009, 5:18 PM


Hi Emily,

fwrite writes data in binary format, not GRIB. Remove the line 'DTYPE grib' from the ctl file. You also have two bugs in your script:

while (t0<222)

should be:

while (t0<=222)

and also

while (h>850)

should be:

while (h>=850)

Using < and >, the values for t=222 and lev=850 will not be written because the last iteration of the loops will be for t=221 and lev=875.

I also don't see any entry for the v wind in your ctl file for the netcdf data. If it is not in the dataset, your wind speed calculation will fail because of missing v wind.

Best regards,

Eric L. Altshuler
Assistant Research Scientist
Center for Ocean-Land-Atmosphere Studies
4041 Powder Mill Road, Suite 302
Calverton, MD 20705-3106
USA

E-mail: ela at cola.iges.org
Phone: (301) 902-1257
Fax: (301) 595-9793

----- Original Message -----
From: "Emily" < yi_zhou01 at YAHOO.CA >
To: GRADSUSR at LIST.CINECA.IT
Sent: Wednesday, September 30, 2009 4:02:13 PM GMT -05:00 US/Canada Eastern
Subject: fwrite a grib data file from nc data


Hi group memeber,

I write a gs file to create a data set which is time series changing with height.
My original data is NARR netCDF data sets (8 times per day)
The ddf file as below:
==========
DSET d:\gradsfile\ncdata\uwnd.200812.nc
DTYPE netcdf
TITLE NARR 4D field Lambert Conformal Conic projection
UNDEF 32766 missing_value
UNPACK scale_factor=0.01f add_offset=47.66f
PDEF 349 277 lcc 1 -145.5 1 1 50 50 -107 32463.41 32463.41
XDEF 615 linear 150 0.3333
YDEF 255 linear 2 0.3333
ZDEF 29 levels 1000, 975, 950, 925, 900, 875, 850, 825, 800, 775, 750, 725, 700,
650, 600, 550, 500, 450, 400, 350, 300, 275, 250, 225, 200, 175, 150, 125, 100
tdef 248 linear 00:00z01dec2008 3hr
vars 3
uwnd 29 t,z,y,x grid_eastward_wind
lat=>glat 0 y,x Latitude
lon=>glon 0 y,x Longitude
endvars
===============
vwnd200812.ddf is simillar with above.

My gs file as below:
=============
'reinit'
'open d:\gradsfile\ncdata\uwnd200812.ddf'
'open d:\gradsfile\ncdata\vwnd200812.ddf'
*'set grads off'
*'set grid off'
'set gxout fwrite'
'set fwrite d:\gradsfile\ncdata\wind-height09z28dec2008.grd'
'set dfile 1'
'set lon 283.3'
'set lat 43.66'
*'set time 09z28dec2008'
'set dfile 2'
'set lon 283.3'
'set lat 43.66'
*'set time 09z28dec2008'
h=1000
t0=218
while(t0<222)
'set t 't0''
while(h>850)
'set lev 'h''
'u=0.01*uwnd.1+47.66'
'v=0.01*vwnd.2+47.66'
'wind=mag(u,v)'
'd wind'
h=h-25
endwhile
t0=t0+1
endwhile
say 'ok'
===============
My ctl file is as below:
==========
DSET d:\gradsfile\ncdata\wind-height09z28dec2008.grd'
DTYPE grib
TITLE Wind-Height 09z12dec2008
UNDEF 32766 missing_value
XDEF 1 linear 1 1
YDEF 1 linear 1 1
ZDEF 7 levels 1000, 975, 950, 925, 900, 875, 850
tdef 5 linear 03z28dec2008 3hr
vars 1
wind 7 99 wind_height
endvars
=========
When I open the ctl file from Grads, it shows:
can not open station/index map file (null)
the data file was not open.

I don't know what's wrong with it. Is there any one can tell me the reason? Thanks.

Regards


Emily
York University, Toronto


From yi_zhou01 at YAHOO.CA  Wed Sep 30 22:47:04 2009
From: yi_zhou01 at YAHOO.CA (Emily)
Date: Wed, 30 Sep 2009 19:47:04 -0700
Subject: fwrite a grib data file from nc data
In-Reply-To: <1027508556.106541254363632720.JavaMail.root@mail.iges.org>
Message-ID: <WED.30.SEP.2009.194704.0700.>

Hi Eric,

I check the binary file, it has 28 bytes. So there are something wrong about the fwrite gs file.

Emily

York University, Toronto


--- On Wed, 9/30/09, Eric Altshuler <ela at COLA.IGES.ORG> wrote:

From: Eric Altshuler <ela at COLA.IGES.ORG>
Subject: Re: fwrite a grib data file from nc data
To: GRADSUSR at LIST.CINECA.IT
Received: Wednesday, September 30, 2009, 10:20 PM

Hi Emily,

What is the size of the binary file? It should be 7*5*4=140 bytes. If it's not that size, check your script for any bugs I may have missed. If it is 140 bytes, then I don't know why grads can't open the binary file. In fact, even if the file exists but has a size of 0 bytes, grads should open it. Make sure the file is actually being created. If it doesn't exist, I have no idea why.

Best regards,
Eric

----- Original Message -----
From: "Emily" <yi_zhou01 at YAHOO.CA>
To: GRADSUSR at LIST.CINECA.IT
Sent: Wednesday, September 30, 2009 9:47:24 PM GMT -05:00 US/Canada Eastern
Subject: Re: fwrite a grib data file from nc data

Hi Eric,

Thank you for figuring out the bugs. I corrected the problems, and rerun the gs to get a new grd file. However after scaning the discription file, it still can not open the binary file. It shows:

open error, cann't open the binary file.
My grads version is grads2.0 a3 for window XP.

BTW, my vwnd ddf file as below:
================
DSET d:\gradsfile\ncdata\vwnd.200812.nc
DTYPE netcdf
TITLE NARR 4D field Lambert Conformal Conic projection
UNDEF 32766 missing_value
UNPACK scale_factor=0.01f add_offset=47.66f
PDEF 349 277 lcc 1 -145.5 1 1 50 50 -107 32463.41 32463.41
XDEF 615 linear 150 0.3333
YDEF 255 linear 2 0.3333
ZDEF 29 levels 1000, 975, 950, 925, 900, 875, 850, 825, 800, 775, 750, 725, 700,
? 650, 600, 550, 500, 450, 400, 350, 300, 275, 250, 225, 200, 175, 150, 125, 100
tdef 248 linear 00:00z01dec2008 3hr
vars 3
vwnd 29 t,z,y,x?? grid_northward_wind
lat=>glat 0 y,x Latitude
lon=>glon 0 y,x Longitude
endvars
===========


Emily,
York University, Toronto

--- On Wed, 9/30/09, Eric Altshuler <ela at COLA.IGES.ORG> wrote:



From: Eric Altshuler <ela at COLA.IGES.ORG>
Subject: Re: fwrite a grib data file from nc data
To: GRADSUSR at LIST.CINECA.IT
Received: Wednesday, September 30, 2009, 5:18 PM


Hi Emily,

fwrite writes data in binary format, not GRIB. Remove the line 'DTYPE grib' from the ctl file. You also have two bugs in your script:

while (t0<222)

should be:

while (t0<=222)

and also

while (h>850)

should be:

while (h>=850)

Using < and >, the values for t=222 and lev=850 will not be written because the last iteration of the loops will be for t=221 and lev=875.

I also don't see any entry for the v wind in your ctl file for the netcdf data. If it is not in the dataset, your wind speed calculation will fail because of missing v wind.

Best regards,

Eric L. Altshuler
Assistant Research Scientist
Center for Ocean-Land-Atmosphere Studies
4041 Powder Mill Road, Suite 302
Calverton, MD 20705-3106
USA

E-mail: ela at cola.iges.org
Phone: (301) 902-1257
Fax: (301) 595-9793

----- Original Message -----
From: "Emily" < yi_zhou01 at YAHOO.CA >
To: GRADSUSR at LIST.CINECA.IT
Sent: Wednesday, September 30, 2009 4:02:13 PM GMT -05:00 US/Canada Eastern
Subject: fwrite a grib data file from nc data


Hi group memeber,

I write a gs file to create a data set which is time series changing with height.
My original data is NARR netCDF data sets (8 times per day)
The ddf file as below:
==========
DSET d:\gradsfile\ncdata\uwnd.200812.nc
DTYPE netcdf
TITLE NARR 4D field Lambert Conformal Conic projection
UNDEF 32766 missing_value
UNPACK scale_factor=0.01f add_offset=47.66f
PDEF 349 277 lcc 1 -145.5 1 1 50 50 -107 32463.41 32463.41
XDEF 615 linear 150 0.3333
YDEF 255 linear 2 0.3333
ZDEF 29 levels 1000, 975, 950, 925, 900, 875, 850, 825, 800, 775, 750, 725, 700,
650, 600, 550, 500, 450, 400, 350, 300, 275, 250, 225, 200, 175, 150, 125, 100
tdef 248 linear 00:00z01dec2008 3hr
vars 3
uwnd 29 t,z,y,x grid_eastward_wind
lat=>glat 0 y,x Latitude
lon=>glon 0 y,x Longitude
endvars
===============
vwnd200812.ddf is simillar with above.

My gs file as below:
=============
'reinit'
'open d:\gradsfile\ncdata\uwnd200812.ddf'
'open d:\gradsfile\ncdata\vwnd200812.ddf'
*'set grads off'
*'set grid off'
'set gxout fwrite'
'set fwrite d:\gradsfile\ncdata\wind-height09z28dec2008.grd'
'set dfile 1'
'set lon 283.3'
'set lat 43.66'
*'set time 09z28dec2008'
'set dfile 2'
'set lon 283.3'
'set lat 43.66'
*'set time 09z28dec2008'
h=1000
t0=218
while(t0<222)
'set t 't0''
while(h>850)
'set lev 'h''
'u=0.01*uwnd.1+47.66'
'v=0.01*vwnd.2+47.66'
'wind=mag(u,v)'
'd wind'
h=h-25
endwhile
t0=t0+1
endwhile
say 'ok'
===============
My ctl file is as below:
==========
DSET d:\gradsfile\ncdata\wind-height09z28dec2008.grd'
DTYPE grib
TITLE Wind-Height 09z12dec2008
UNDEF 32766 missing_value
XDEF 1 linear 1 1
YDEF 1 linear 1 1
ZDEF 7 levels 1000, 975, 950, 925, 900, 875, 850
tdef 5 linear 03z28dec2008 3hr
vars 1
wind 7 99 wind_height
endvars
=========
When I open the ctl file from Grads, it shows:
can not open station/index map file (null)
the data file was not open.

I don't know what's wrong with it. Is there any one can tell me the reason? Thanks.

Regards


Emily
York University, Toronto
-------------- next part --------------
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From yi_zhou01 at YAHOO.CA  Wed Sep 30 23:21:20 2009
From: yi_zhou01 at YAHOO.CA (Emily)
Date: Wed, 30 Sep 2009 20:21:20 -0700
Subject: fwrite a grib data file from nc data
In-Reply-To: <1027508556.106541254363632720.JavaMail.root@mail.iges.org>
Message-ID: <WED.30.SEP.2009.202120.0700.>

Hi Eric,

I change my fwrite gs file as below:
===========
'reinit'
'open d:\gradsfile\ncdata\uwnd200812.ddf'
'open d:\gradsfile\ncdata\vwnd200812.ddf'
*'set grads off'
*'set grid off'
'set gxout fwrite'
'set fwrite d:\gradsfile\ncdata\wind.grd'
t0=218
h=1000
while(t0<=222)
while(h>=850)
'set dfile 1'
'set lon 283.3'
'set lat 43.66'
'set lev 'h''
'set t 't0''
'set dfile 2'
'set lon 283.3'
'set lat 43.66'
'set lev 'h''
'set t 't0''
'u=0.01*uwnd.1+47.66'
'v=0.01*vwnd.2+47.66'
'wind=mag(u,v)'
'd wind'
h=h-25
endwhile
t0=t0+1
endwhile
say 'ok'
============
But the binary file size still is 28 bytes. I don't know why.

Thanks you in advance for your help.

Emily

York University, Toronto




--- On Wed, 9/30/09, Eric Altshuler <ela at COLA.IGES.ORG> wrote:

From: Eric Altshuler <ela at COLA.IGES.ORG>
Subject: Re: fwrite a grib data file from nc data
To: GRADSUSR at LIST.CINECA.IT
Received: Wednesday, September 30, 2009, 10:20 PM

Hi Emily,

What is the size of the binary file? It should be 7*5*4=140 bytes. If it's not that size, check your script for any bugs I may have missed. If it is 140 bytes, then I don't know why grads can't open the binary file. In fact, even if the file exists but has a size of 0 bytes, grads should open it. Make sure the file is actually being created. If it doesn't exist, I have no idea why.

Best regards,
Eric

----- Original Message -----
From: "Emily" <yi_zhou01 at YAHOO.CA>
To: GRADSUSR at LIST.CINECA.IT
Sent: Wednesday, September 30, 2009 9:47:24 PM GMT -05:00 US/Canada Eastern
Subject: Re: fwrite a grib data file from nc data

Hi Eric,

Thank you for figuring out the bugs. I corrected the problems, and rerun the gs to get a new grd file. However after scaning the discription file, it still can not open the binary file. It shows:

open error, cann't open the binary file.
My grads version is grads2.0 a3 for window XP.

BTW, my vwnd ddf file as below:
================
DSET d:\gradsfile\ncdata\vwnd.200812.nc
DTYPE netcdf
TITLE NARR 4D field Lambert Conformal Conic projection
UNDEF 32766 missing_value
UNPACK scale_factor=0.01f add_offset=47.66f
PDEF 349 277 lcc 1 -145.5 1 1 50 50 -107 32463.41 32463.41
XDEF 615 linear 150 0.3333
YDEF 255 linear 2 0.3333
ZDEF 29 levels 1000, 975, 950, 925, 900, 875, 850, 825, 800, 775, 750, 725, 700,
? 650, 600, 550, 500, 450, 400, 350, 300, 275, 250, 225, 200, 175, 150, 125, 100
tdef 248 linear 00:00z01dec2008 3hr
vars 3
vwnd 29 t,z,y,x?? grid_northward_wind
lat=>glat 0 y,x Latitude
lon=>glon 0 y,x Longitude
endvars
===========


Emily,
York University, Toronto

--- On Wed, 9/30/09, Eric Altshuler <ela at COLA.IGES.ORG> wrote:



From: Eric Altshuler <ela at COLA.IGES.ORG>
Subject: Re: fwrite a grib data file from nc data
To: GRADSUSR at LIST.CINECA.IT
Received: Wednesday, September 30, 2009, 5:18 PM


Hi Emily,

fwrite writes data in binary format, not GRIB. Remove the line 'DTYPE grib' from the ctl file. You also have two bugs in your script:

while (t0<222)

should be:

while (t0<=222)

and also

while (h>850)

should be:

while (h>=850)

Using < and >, the values for t=222 and lev=850 will not be written because the last iteration of the loops will be for t=221 and lev=875.

I also don't see any entry for the v wind in your ctl file for the netcdf data. If it is not in the dataset, your wind speed calculation will fail because of missing v wind.

Best regards,

Eric L. Altshuler
Assistant Research Scientist
Center for Ocean-Land-Atmosphere Studies
4041 Powder Mill Road, Suite 302
Calverton, MD 20705-3106
USA

E-mail: ela at cola.iges.org
Phone: (301) 902-1257
Fax: (301) 595-9793

----- Original Message -----
From: "Emily" < yi_zhou01 at YAHOO.CA >
To: GRADSUSR at LIST.CINECA.IT
Sent: Wednesday, September 30, 2009 4:02:13 PM GMT -05:00 US/Canada Eastern
Subject: fwrite a grib data file from nc data


Hi group memeber,

I write a gs file to create a data set which is time series changing with height.
My original data is NARR netCDF data sets (8 times per day)
The ddf file as below:
==========
DSET d:\gradsfile\ncdata\uwnd.200812.nc
DTYPE netcdf
TITLE NARR 4D field Lambert Conformal Conic projection
UNDEF 32766 missing_value
UNPACK scale_factor=0.01f add_offset=47.66f
PDEF 349 277 lcc 1 -145.5 1 1 50 50 -107 32463.41 32463.41
XDEF 615 linear 150 0.3333
YDEF 255 linear 2 0.3333
ZDEF 29 levels 1000, 975, 950, 925, 900, 875, 850, 825, 800, 775, 750, 725, 700,
650, 600, 550, 500, 450, 400, 350, 300, 275, 250, 225, 200, 175, 150, 125, 100
tdef 248 linear 00:00z01dec2008 3hr
vars 3
uwnd 29 t,z,y,x grid_eastward_wind
lat=>glat 0 y,x Latitude
lon=>glon 0 y,x Longitude
endvars
===============
vwnd200812.ddf is simillar with above.

My gs file as below:
=============
'reinit'
'open d:\gradsfile\ncdata\uwnd200812.ddf'
'open d:\gradsfile\ncdata\vwnd200812.ddf'
*'set grads off'
*'set grid off'
'set gxout fwrite'
'set fwrite d:\gradsfile\ncdata\wind-height09z28dec2008.grd'
'set dfile 1'
'set lon 283.3'
'set lat 43.66'
*'set time 09z28dec2008'
'set dfile 2'
'set lon 283.3'
'set lat 43.66'
*'set time 09z28dec2008'
h=1000
t0=218
while(t0<222)
'set t 't0''
while(h>850)
'set lev 'h''
'u=0.01*uwnd.1+47.66'
'v=0.01*vwnd.2+47.66'
'wind=mag(u,v)'
'd wind'
h=h-25
endwhile
t0=t0+1
endwhile
say 'ok'
===============
My ctl file is as below:
==========
DSET d:\gradsfile\ncdata\wind-height09z28dec2008.grd'
DTYPE grib
TITLE Wind-Height 09z12dec2008
UNDEF 32766 missing_value
XDEF 1 linear 1 1
YDEF 1 linear 1 1
ZDEF 7 levels 1000, 975, 950, 925, 900, 875, 850
tdef 5 linear 03z28dec2008 3hr
vars 1
wind 7 99 wind_height
endvars
=========
When I open the ctl file from Grads, it shows:
can not open station/index map file (null)
the data file was not open.

I don't know what's wrong with it. Is there any one can tell me the reason? Thanks.

Regards


Emily
York University, Toronto
-------------- next part --------------
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