[gradsusr] error with gr2stn function
Geeta Geeta
geeta124 at hotmail.com
Tue Apr 27 01:36:03 EDT 2010
Dear All,
I have tried to fix the x and y as suggested. But I have not got the result . I am posting the message given by grads.
ga-> reinit
No hardcopy metafile open
All files closed; all defined objects released
All GrADS attributes have been reinitialized
ga-> open 12mar2008
Scanning description file: 12mar2008
Data file gdas2008031200f00 is open as file 1
LON set to 0 360
LAT set to -90 90
LEV set to 1000 1000
Time values set: 2008:3:12:0 2008:3:12:0
ga-> set t 1
Time values set: 2008:3:12:0 2008:3:12:0
ga-> set x 1
LON set to 0 0
ga-> set y 1
LAT set to -90 -90
ga-> set lev 1000
LEV set to 1000 1000
ga-> set gxout print
ga-> d gr2stn(TMPprs,77.5,12.5)
Printing Stations -- 1 Reports -- Undef = 9.999e+20
xxxxxxxx 77.5 12.5 1000
ga->
ga-> d gr2stn(TMPprs,0.0,-90.0)
Printing Stations -- 1 Reports -- Undef = 9.999e+20
xxxxxxxx 0 -90 1000
ga-> d gr2stn(TMPprs,50.0,-45.0)
Printing Stations -- 1 Reports -- Undef = 9.999e+20
xxxxxxxx 50 -45 1000
ga->
It is printing the lat, lon and the level only.
Kindly suggest.
geeta
> From: gradsusr-request at gradsusr.org
> Subject: gradsusr Digest, Vol 2, Issue 34
> To: gradsusr at gradsusr.org
> Date: Mon, 26 Apr 2010 02:46:40 -0400
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> Today's Topics:
>
> 1. gr2stn function (Geeta Geeta)
> 2. scorr function (Carlos Batista)
> 3. Re: gr2stn function (Stephen McMillan)
> 4. Re: scorr function (Stephen McMillan)
> 5. Unable to read Monthly Northern Hemisphere Sea-Level Pressure
> (DSS SLP Grid-binary) (zowiti at ncst.go.ke)
> 6. error in gr2stn script (Geeta Geeta)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Sat, 24 Apr 2010 07:45:42 +0000
> From: Geeta Geeta <geeta124 at hotmail.com>
> Subject: [gradsusr] gr2stn function
> To: <gradsusr at gradsusr.org>
> Message-ID: <SNT117-W12B787EAD3ABD70AA641528A060 at phx.gbl>
> Content-Type: text/plain; charset="iso-8859-1"
>
>
> Dear all,
> Kindly tell me how to use the "gr2stn " function of grads.
> How the station data file will look like?
> Any suggestions
> geeta
>
>
> _________________________________________________________________
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> Message: 2
> Date: Sat, 24 Apr 2010 11:02:31 -0300
> From: Carlos Batista <krlosbatist at gmail.com>
> Subject: [gradsusr] scorr function
> To: gradsusr at gradsusr.org
> Message-ID:
> <y2gdd4d468f1004240702zaf186fd7ufa21b4b504df48a1 at mail.gmail.com>
> Content-Type: text/plain; charset="iso-8859-1"
>
> Dear all,
> Kindly tell me how to use the "scorr " function of grads.
> I don't how use its this function for to do correlation between
> precipitation and flow rivers. Someone know some gs for to do correlations
> between this data, please, useding the scorr function and other functions ?
> Any suggestions
> Krlos
> e-mail; krlosbatist at gmail.com
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> ------------------------------
>
> Message: 3
> Date: Sat, 24 Apr 2010 10:42:04 -0400
> From: Stephen McMillan <smcmillan at planalytics.com>
> Subject: Re: [gradsusr] gr2stn function
> To: GrADS Users Forum <gradsusr at gradsusr.org>
> Message-ID:
> <s2u1f726e2f1004240742j1329b506kcf3e48202ec2924c at mail.gmail.com>
> Content-Type: text/plain; charset="iso-8859-1"
>
> Dear geeta,
> Please see this post on the the gradsusr archives:
> http://gradsusr.org/pipermail/gradsusr/2010-March/000077.html
> You can search for additional posts at
> http://gradsusr.org/pipermail/gradsusr/
> GrADS documentation at: http://sidata.org/grads/gadoc/gradfuncgr2stn.html
>
> Good luck--
> Stephen McMillan
>
> On Sat, Apr 24, 2010 at 3:45 AM, Geeta Geeta <geeta124 at hotmail.com> wrote:
>
> > Dear all,
> > Kindly tell me how to use the "gr2stn " function of grads.
> > How the station data file will look like?
> > Any suggestions
> > geeta
> >
> >
> > ------------------------------
> > Catch the changing security environment Get it now.<http://news.in.msn.com/internalsecurity/>
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> > gradsusr mailing list
> > gradsusr at gradsusr.org
> > http://gradsusr.org/mailman/listinfo/gradsusr
> >
> >
>
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> ------------------------------
>
> Message: 4
> Date: Sat, 24 Apr 2010 12:03:04 -0400
> From: Stephen McMillan <smcmillan at planalytics.com>
> Subject: Re: [gradsusr] scorr function
> To: GrADS Users Forum <gradsusr at gradsusr.org>
> Message-ID:
> <j2m1f726e2f1004240903q63515e10pcba71b2095589713 at mail.gmail.com>
> Content-Type: text/plain; charset="iso-8859-1"
>
> Dear Krlos,
> If you haven't already, first review the correct syntax and example in the
> GrADS Documentation Index: http://sidata.org/grads/gadoc/gradfuncscorr.html
> Other functions can be found in the same Documentation Index.
>
> The basic idea is that you have two previously defined variables, whose
> horizontal dimensions both include the geographical area you wish to
> spatially correlate. For example, let's say you have two variables var1 and
> var2 and you wanted to correlate them over a 10 x 10 degree domain over
> somewhere at a fixed time:
> 'd scorr(var1,var2,lon=-90,lon=-80,lat=30,lat=40)'
> should give you something like this:
> result value = -0.2356
> You could capture above value in script by including this after display
> command:
> corr=subwrd(result,4)
> You can also create a time loop of correlations, 50 timesteps for example:
> 'set t 1 50'
> 'd tloop(scorr(var1,var2,....)'
> Create a correlation time series of above loop:
> 'define corrts=tloop(scorr(var1,var2,...)'
> Display the time series:
> 'set x 1';'set y 1'
> 'd corrts'
>
> The tcorr function (see http://sidata.org/grads/gadoc/gradfunctcorr.html)
> may be more appropriate for correlating your data, especially if they are
> time series at a fixed point.
>
> A search of the GrADS user archive (http://gradsusr.org/pipermail/gradsusr/)
> may yield more appropriate answers.
>
> Best wishes--
> Stephen McMillan
>
> On Sat, Apr 24, 2010 at 10:02 AM, Carlos Batista <krlosbatist at gmail.com>wrote:
>
> > Dear all,
> > Kindly tell me how to use the "scorr " function of grads.
> > I don't how use its this function for to do correlation between
> > precipitation and flow rivers. Someone know some gs for to do correlations
> > between this data, please, useding the scorr function and other functions ?
> > Any suggestions
> > Krlos
> > e-mail; krlosbatist at gmail.com
> >
> >
> > _______________________________________________
> > gradsusr mailing list
> > gradsusr at gradsusr.org
> > http://gradsusr.org/mailman/listinfo/gradsusr
> >
> >
>
> ***************************************************
> 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
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> ------------------------------
>
> Message: 5
> Date: Sun, 25 Apr 2010 06:37:16 -0700
> From: "zowiti at ncst.go.ke" <zowiti at ncst.go.ke>
> Subject: [gradsusr] Unable to read Monthly Northern Hemisphere
> Sea-Level Pressure (DSS SLP Grid-binary)
> To: <gradsusr at gradsusr.org>
> Message-ID: <4363b2a4$4cb7762b$7c5d40f6$@com>
> Content-Type: text/plain; charset="iso-8859-1"
>
> Dear Users,
> I am reading the DSS SLP [5? x 5?, 0E to 355E and 15N to 90N (72 x 16 Longitude/Latitude)] data in Grads via the ctl below. When I display the slp, I get a distorted plot. I'm unable to figure out the problem in the ctl.
>
> dset d:\jf\molydata.bin
> options sequential
> undef -9999
> title dss_slp
> xdef 72 linear 0 5.0
> ydef 15 linear 15 5.0
> zdef 1 levels 1000
> TDEF 1335 LINEAR jan1899 1mo
> vars 1
> slp 0 99 pressure
> endvars
> Additional data information:
> 1080 binary integer data values in 15-bit bytes. Data values are to nearest tenth millibar and are the rightmost 14 bits of each byte. The grid of Y(I,J) is dimensioned Y(72,15). As I goes from 1 to 72, longitude goes from 00E-355E; as J goes from 1 to 15, latitude goes from 15N-85N.
>
> ZABLONE OWITI
> GRADUATE STUDENT
> Nanjing University of Information, Science and Technology
> College of International Education
>
> ====================================================
>
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> ------------------------------
>
> Message: 6
> Date: Mon, 26 Apr 2010 06:46:39 +0000
> From: Geeta Geeta <geeta124 at hotmail.com>
> Subject: [gradsusr] error in gr2stn script
> To: grads grads <gradsusr at gradsusr.org>
> Message-ID: <SNT117-W28F33B5C383D2CB799A3548A040 at phx.gbl>
> Content-Type: text/plain; charset="iso-8859-1"
>
>
> Dear All,
> I am trying to use the "gr2stn " function of grads but failed. I am posting the following message from grads. My gridded data file is the gfs grib files.
>
> ga-> reinit
> No hardcopy metafile open
> All files closed; all defined objects released
> All GrADS attributes have been reinitialized
> ga-> open 12mar2008
> Scanning description file: 12mar2008
> Data file gdas2008031200f00 is open as file 1
> LON set to 0 360
> LAT set to -90 90
> LEV set to 1000 1000
> Time values set: 2008:3:12:0 2008:3:12:0
> ga-> set t 1
> Time values set: 2008:3:12:0 2008:3:12:0
> ga-> set lev 1000
> LEV set to 1000 1000
> ga-> d gr2stn(TMP2M,77.5,12.5)
> Error from GR2STN: 2nd argument must be stns
> Operation Error: Error from gr2stn function
> Error ocurred at column 1
> DISPLAY error: Invalid expression
> Expression = gr2stn(tmp2m,77.5,12.5)
>
>
>
> If I use this function with the WRF output, I get the following message.
> ga-> reinit
> No hardcopy metafile open
> All files closed; all defined objects released
> All GrADS attributes have been reinitialized
> ga-> open test
> Scanning description file: test
> Data file test.dat is open as file 1
> LON set to 60.2713 89.7287
> LAT set to 0.57003 23.9053
> LEV set to 1000 1000
> Time values set: 2010:4:24:0 2010:4:24:0
> ga-> set t 1
> Time values set: 2010:4:24:0 2010:4:24:0
> ga-> set lev 1000
> LEV set to 1000 1000
> ga-> d gr2stn(T2, 77.5, 12.5)
> Error from GR2STN: Grid must have linear scaling
> Operation Error: Error from gr2stn function
> Error ocurred at column 1
> DISPLAY error: Invalid expression
> Expression = gr2stn(t2,77.5,12.5)
> ga->
>
> I Think that since WRF output does not have fixed dx and dy so the error.
>
> Kindly suggest.
> Geeta
>
>
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