[gradsusr] gradsusr Digest, Vol 9, Issue 23
Juan Jose Amides Figueroa Urbano
juanjosefigueroa at gmail.com
Wed Nov 10 17:50:14 EST 2010
Thanks for the help!
On Tue, Nov 9, 2010 at 5:28 AM, <gradsusr-request at gradsusr.org> wrote:
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> Today's Topics:
>
> 1. Re: netCDF control file (Heiner K?rnich)
> 2. Cuestion (Juan Jose Amides Figueroa Urbano)
> 3. Re: Cuestion (RafaelCB)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Tue, 9 Nov 2010 14:33:08 +0100
> From: Heiner K?rnich <heiner at misu.su.se>
> Subject: Re: [gradsusr] netCDF control file
> To: GrADS Users Forum <gradsusr at gradsusr.org>
> Message-ID:
> <AANLkTi=THDPRVWHVfG0Kq0nRHnC4mBigtHQqPH=uqC7W at mail.gmail.com>
> Content-Type: text/plain; charset="windows-1252"
>
> Hi Deniz,
>
> ok. When you tried to open the file with sdfopen and it failed, this means
> that the file is not consistent with the coards-standard. So we need a
> ctl-file and xdfopen.
>
> You need the name of all coordinates of the file. ncdump -h would give
> that.
> When you wrote "dimension1", this is just an example for the first
> dimension. Probably, this should be the name of your longitude-variable in
> matlab, eg. "long" or "x" or so.
>
> "fwrite" in matlab follows the logic of the programming language c. You
> have
> to open the file first with fopen. It is explained in the matlab-manual.
> Here is an example from me:
> % open the file 'ures.bin' in binary write-mode.
> fid=fopen('ures.bin','wb');
> % write binary data from the field winds to file in real*4 %precision
> fwrite(fid,winds,'real*4');
>
> Regards,
> Heiner
>
> On Tue, Nov 9, 2010 at 1:37 PM, Deniz Demirhan Bari <bari at iap-kborn.de
> >wrote:
>
> > Dear Heiner,
> >
> > Grads 2.0 in our server is now changed and it is compiled with netCDF
> > support.
> >
> > When I tried:
> >
> > >sdfopen ures.nc
> >
> > it says:
> >
> > >Scanning self-describing file: ures.nc
> >
> > gadsdf: SDF file has no discernable X coordinate.
> >
> > When I try:
> >
> > >xdfopen ures.ctl
> >
> > >Scanning Descriptor File: ures.ctl
> >
> > gadsdf: Lon dimension dimension1 is not an SDF dimension.
> >
> > SDF Descriptor file ures.ctl was not successfully opened & parsed.
> >
> >
> >
> > ---Matlab fwrite, I tried it but couldn?t manage.
> >
> > Thank you
> >
> > Deniz
> >
> > *Von:* gradsusr-bounces at gradsusr.org [mailto:
> gradsusr-bounces at gradsusr.org]
> > *Im Auftrag von *Heiner K?rnich
> > *Gesendet:* Montag, 8. November 2010 17:07
> >
> > *An:* GrADS Users Forum
> > *Betreff:* Re: [gradsusr] netCDF control file
> >
> >
> >
> > Hi Deniz,
> >
> > when you write recognized "sdfopen" or "xdfopen", do you mean that grads
> > does not know the command? Is your grads-version compiled with
> > netcdf-support?
> >
> > It is certainly a good thing to create netcdf-files, as they are
> > self-descriptive. But still you could write binary data from matlab with
> the
> > command fwrite:
> > http://www.mathworks.com/help/techdoc/ref/fwrite.html
> >
> > Then you have to follow the logic of grads binary files, ie. first
> > longitude, then latitude, then height, then time, as described in the
> > manual.
> >
> > So far,
> > Heiner
> >
> > On Mon, Nov 8, 2010 at 4:25 PM, Deniz Demirhan Bari <bari at iap-kborn.de>
> > wrote:
> >
> > Hello Heiner,
> >
> > Thank you for your mail. I tried 'sdfopen ures.nc' but neither grads
> 2.0
> > nor grads 1.8 recognized sdfopen. Then I prepared a control file as
> below,
> > by looking at the ?CDO sinfo ures.nc?. Then tried ?xdfopen ures.ctl?
> but
> > none of the grads versions recognized xdfopen again.
> >
> > *
> >
> > DSET ^ures.nc
> >
> > DTYPE netcdf
> >
> > UNDEF -9e+33
> >
> > XDEF dimension1 96 LINEAR 0.000000 3.750000
> >
> > YDEF dimension2 48 LEVELS -87.159 -83.479 -79.777 -76.070 -72.362
> -68.652
> >
> > -64.942 -61.232 -57.521 -53.810 -50.099 -46.389
> >
> > -42.678 -38.967 -35.256 -31.545 -27.833 -24.122
> >
> > -20.411 -16.700 -12.989 -9.278 -5.567 -1.856
> >
> > 1.856 5.567 9.278 12.989 16.700 20.411
> >
> > 24.122 27.833 31.545 35.256 38.967 42.678
> >
> > 46.389 50.099 53.810 57.521 61.232 64.942
> >
> > 68.652 72.362 76.070 79.777 83.479 87.159
> >
> > ZDEF dimension3 114 LINEAR 1 1
> >
> > TDEF dimension4 1 LINEAR 00:00Z00jan0000 1mn
> >
> > TITLE ures.grb T31 grid
> >
> > VARS 1
> >
> > ures 114 1,100 ures
> >
> > ENDVARS
> >
> > *
> >
> >
> >
> > My data is three dimensionaI and if I try to save my data in an ASCII
> file
> > in MATLAB it gives a two dimensional output. I also couldn?t solve this
> > problem
> >
> > Thank you
> >
> > Deniz
> >
> >
> >
> >
> >
> > *Von:* gradsusr-bounces at gradsusr.org [mailto:
> gradsusr-bounces at gradsusr.org]
> > *Im Auftrag von *Heiner K?rnich
> > *Gesendet:* Montag, 8. November 2010 14:06
> > *An:* GrADS Users Forum
> > *Betreff:* Re: [gradsusr] netCDF control file
> >
> >
> >
> > Hi Deniz,
> >
> > you don't nead a ctl-file to open a netcdf-file in grads. If your file
> > follows the COARDS-standard, then you can open it with 'sdfopen ures.nc
> '.
> > If grads won't recognise it, you might want to try an older
> grads-version.
> > We had some problems here with grads 2.0 and netcdf.
> >
> > If grads still won't open your file, you can write a ctl-file and try to
> > open that with the command 'xdfopen'. The ctl-file looks a bit different
> > from standard ctl-files, look here:
> > http://www.iges.org/grads/gadoc/gradcomdxdfopen.html
> >
> > Then, you would need the output from ncdump in order to know what is
> inside
> > the netcdf-file. Alternatively you can use the climate data operators
> (CDO)
> > with the command "cdo sinfo ures.nc".
> > Or in matlab, if you have the mexnc-package installed, you read the
> > information with
> > info=nc_info('ures.nc')
> > Then you can access all details in info.
> >
> > Finally, if it is only you who will use the data, it might be simpler to
> > write binary output in matlab and use a standard ctl.
> >
> > Kind regards from Stockholm,
> > Heiner
> >
> > On Mon, Nov 8, 2010 at 10:11 AM, Deniz Demirhan Bari <bari at iap-kborn.de>
> > wrote:
> >
> > Dear Grads users,
> >
> > I have calculated residual wind components in MATLAB and saved them in
> > netCDF file. Now I want to read them in grads but I cannot create a
> netcdf
> > control file.
> >
> > I tried to get the output of ncdump but my computer doesn?t recognize
> ncdump although I installed it.
> >
> > I am using the latest version of Grads on a Suse Linux computer.
> >
> > My attempt to create a ctl file is below:
> >
> > *
> >
> > DSET ^ures.nc
> >
> > DTYPE netCDF
> >
> > XDEF 96 LINEAR 0.000000 3.750000
> >
> > YDEF 48 LEVELS -87.159 -83.479 -79.777 -76.070 -72.362 -68.652
> >
> > -64.942 -61.232 -57.521 -53.810 -50.099 -46.389
> >
> > -42.678 -38.967 -35.256 -31.545 -27.833 -24.122
> >
> > -20.411 -16.700 -12.989 -9.278 -5.567 -1.856
> >
> > 1.856 5.567 9.278 12.989 16.700 20.411
> >
> > 24.122 27.833 31.545 35.256 38.967 42.678
> >
> > 46.389 50.099 53.810 57.521 61.232 64.942
> >
> > 68.652 72.362 76.070 79.777 83.479 87.159
> >
> > ZDEF 114 LINEAR 1 1
> >
> > TDEF 1 LINEAR 00:00Z00jan0000 1mn
> >
> > OPTIONS yrev
> >
> > UNDEF -9e+33
> >
> > VARS 1
> >
> > ures 114 1,100 ures
> >
> > ENDVARS
> >
> > *
> >
> > Thanks in advance
> >
> > Deniz DEMIRHAN BARI
> >
> > Leibniz-Institut f?r Atmosph?renphysik e.V.
> > an der Universit?t Rostock
> > Schlossstra?e 6
> > 18225 K?hlungsborn
> >
> >
> >
> >
> >
> >
> > _______________________________________________
> > gradsusr mailing list
> > gradsusr at gradsusr.org
> > http://gradsusr.org/mailman/listinfo/gradsusr
> >
> >
> >
> >
> > --
> > Heiner K?rnich
> > Dept. of Meteorology Tel: +46 8 164333
> > Stockholms University, SE-106 91 Stockholm, Sweden
> > Email: heiner at misu.su.se www.misu.su.se/~heiner/<http://www.misu.su.se/%7Eheiner/>
> <http://www.misu.su.se/%7Eheiner/>
> >
> >
> > _______________________________________________
> > gradsusr mailing list
> > gradsusr at gradsusr.org
> > http://gradsusr.org/mailman/listinfo/gradsusr
> >
> >
> >
> >
> > --
> > Heiner K?rnich
> > Dept. of Meteorology Tel: +46 8 164333
> > Stockholms University, SE-106 91 Stockholm, Sweden
> > Email: heiner at misu.su.se www.misu.su.se/~heiner/<http://www.misu.su.se/%7Eheiner/>
> >
> > _______________________________________________
> > gradsusr mailing list
> > gradsusr at gradsusr.org
> > http://gradsusr.org/mailman/listinfo/gradsusr
> >
> >
>
>
> --
> Heiner K?rnich
> Dept. of Meteorology Tel: +46 8 164333
> Stockholms University, SE-106 91 Stockholm, Sweden
> Email: heiner at misu.su.se www.misu.su.se/~heiner/<http://www.misu.su.se/%7Eheiner/>
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> Message: 2
> Date: Tue, 9 Nov 2010 09:16:11 -0600
> From: Juan Jose Amides Figueroa Urbano <juanjosefigueroa at gmail.com>
> Subject: [gradsusr] Cuestion
> To: gradsusr at gradsusr.org
> Message-ID:
> <AANLkTinzWXC9M-NGiuTXZ=qg9cu2=ayukRurzhjkA_ga at mail.gmail.com>
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>
> Hello, i new in GrADS, i need a list of available diagnostics or productos
> to see in GrADS from WRF model, i try whit rainc for rain and pressure ("d
> rainc" and "d pressure") can you help me?
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> ------------------------------
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> Message: 3
> Date: Tue, 9 Nov 2010 13:33:45 -0200
> From: RafaelCB <rafael.ciram at gmail.com>
> Subject: Re: [gradsusr] Cuestion
> To: GrADS Users Forum <gradsusr at gradsusr.org>
> Message-ID:
> <AANLkTi=nRm3XEFHb_kqMe+w-KoLtYSEns5sb3b5y8v_y at mail.gmail.com<nRm3XEFHb_kqMe%2Bw-KoLtYSEns5sb3b5y8v_y at mail.gmail.com>
> >
> Content-Type: text/plain; charset="iso-8859-1"
>
> Hello
> In WRF has two types of precipitation
> rainc 0 0 TOTAL CUMULUS Accumulated Precipitation (cm)
> rain 0 0 TOTAL GRID SCALE Accumulated Precipitation (cm)
> You need to add the two variables to have the total precipitation that
> time.
>
> * Precipitation
> set gxout shaded
> d rain+rainc
>
> * Pressure
> contour set gxout
> d slp
>
> hug.
>
> 2010/11/9 Juan Jose Amides Figueroa Urbano <juanjosefigueroa at gmail.com>
>
> > Hello, i new in GrADS, i need a list of available diagnostics or
> productos
> > to see in GrADS from WRF model, i try whit rainc for rain and pressure
> ("d
> > rainc" and "d pressure") can you help me?
> >
> > _______________________________________________
> > gradsusr mailing list
> > gradsusr at gradsusr.org
> > http://gradsusr.org/mailman/listinfo/gradsusr
> >
> >
>
>
> --
> Rafael Censi Borges
> T?c.Meteorologia - Epagri/Ciram
> +55 (48)3239-8064/8066
> http://ciram.epagri.sc.gov.br
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> End of gradsusr Digest, Vol 9, Issue 23
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