[gradsusr] problem running the script skew.gs

Jeffrey Duda jdduda at iastate.edu
Tue Nov 16 23:40:33 EST 2010 

Juan,
I think I saw an error that mentions your height dimension is reversed.
Make sure you set the bottom and top levels of the sounding correctly.  In
the version of skew.gs that I use, there is a part that asks for the bottom
and top layers and I didn't see that in your output.

Hope that helps.

Jeff Duda

On Tue, Nov 16, 2010 at 10:35 PM, Juan Carlos Anduckia
<janducki at yahoo.com>wrote:

> Hi Mariano, thank you for your kind answer.
> I'm quite sure the lat/lon points I select are in my .ctl file (please see
> attachment), so I still wonder what the problem is when I get over and over,
> testing all of them, the same error:
>
> ga-> ./skew.gs
> No hardcopy metafile open
> All files closed; all defined objects released
> All GrADS attributes have been reinitialized
> Initial Time is 00Z11AUG2010
> Create gif images as well (1=yes ; 0=no)
> 1
> Please enter coordinated for sounding
>
> Latitude values between: 10.4006 and 10.4994
> Enter Latitude
> 10.44550
>
> Longitude values between: -75.5702 and -75.4698
> Enter Longitude
> -75.52457
>
> Overlay two time periods 1=yes ; 0=no
> 0
>
> Please enter time to plot
> Available times: 1 to 5
> 4
> Data Request Warning:  Request beyond file limits
> Data Request Warning:  Request beyond file limits
> Data Request Warning:  Request beyond file limits
> Data Request Warning:  Request beyond file limits
> Define Error:  Unable to allocate data memory
>   Size of request was -899 grid elements
> Data Request Warning:  Request beyond file limits
> Data Request Warning:  Request beyond file limits
> Define Error:  Unable to allocate data memory
>   Size of request was -899 grid elements
> Data Request Warning:  Request beyond file limits
> Define Error:  Unable to allocate data memory
>   Size of request was -899 grid elements
> Data Request Warning:  Request beyond file limits
> Define Error:  Unable to allocate data memory
>   Size of request was -899 grid elements
> Data Request Error: Invalid grid coordinates
>   Varying dimension 2 decreases: 1000 to 100
>   Error ocurred getting variable 'lon'
>   Error ocurred at column 1
> DISPLAY error:  Invalid expression
>   Expression = lon
> Non-numeric args to numeric operation
>   Error occurred on line 893
>   In file ./skew.gs
>   Error occurred on line 69
>   In file ./skew.gs
>
> Thanks for any further help. JCA
>
>
> --- On *Tue, 11/16/10, Glauber Mariano <glauber.mariano at cptec.inpe.br>*wrote:
>
>
> From: Glauber Mariano <glauber.mariano at cptec.inpe.br>
> Subject: Re: [gradsusr] problem running the script skew.gs
> To: "GrADS Users Forum" <gradsusr at gradsusr.org>
> Date: Tuesday, November 16, 2010, 4:40 AM
>
> Hi Juan,
>
> I think that your problem is about your lat/lon point that you select! When
> I run the skew.gs I put some tests to know if my lat/lon is available on
> my data, or if my data has undef values ex:
>
> 'd t'
> testelimit = sublin(result,1)
> testelimite = subwrd(testelimit,2)
> if (testelimite = Request)
>    say ''
>    say 'There is not data in this point'
>    say ''
>    i=i+1
> else
> 'set z 4'
>
> *****UNDEF test *********** begin
> 'd t'
> testeundef = sublin(result,1)
> testeundef = subwrd(testeundef,4)
> say ''
> say 'This point  'i' has 'testeundef
> say ''
> If (testeundef = 0)
>    i=i+1
> else
> *****UNDEF test *********** end
>
> ....... rest of the script
>
> I hope that you can run it now...
>
> Glauber Lopes Mariano
> Departamento de Satélites e Sistemas Ambientais - DSA / CPTEC - Grupo de
> Sondagens Atmosféricas
> Fone: (12) 3186-9467
> Email: glauber.mariano at cptec.inpe.br<http://mc/compose?to=glauber.mariano@cptec.inpe.br>/
> glaubermariano at gmail.com <http://mc/compose?to=glaubermariano@gmail.com>
>
>
> 2010/11/16 Juan Carlos Anduckia <janducki at yahoo.com<http://mc/compose?to=janducki@yahoo.com>
> >
>
> Hello, I'm new to this forum and I have a little problem with the script
> skew.gs for WRF model output. When filling in the appropriate options and
> coordinates in a GrADS session, I get this error:
>
> Data Request Warning:  Request beyond file limits
> Data Request Warning:  Request beyond file limits
> Data Request Warning:  Request beyond file limits
> Data Request Warning:  Request beyond file limits
> Define Error:  Unable to allocate data memory
>   Size of request was -899 grid elements
> Data Request Warning:  Request beyond file limits
> Data Request Warning:  Request beyond file limits
> Define Error:  Unable to allocate data memory
>   Size of request was -899 grid elements
> Data Request Warning:  Request beyond file limits
> Define Error:  Unable to allocate data memory
>   Size of request was -899 grid elements
> Data Request Warning:  Request beyond file limits
> Define Error:  Unable to allocate data memory
>   Size of request was -899 grid elements
> Data Request Error: Invalid grid coordinates
>   Varying dimension 2 decreases: 1000 to 100
>   Error ocurred getting variable 'lon'
>   Error ocurred at column 1
> DISPLAY error:  Invalid expression
>   Expression = lon
> Non-numeric args to numeric operation
>   Error occurred on line 893
>   In file ./skew.gs
>   Error occurred on line 69
>   In file ./skew.gs
>
> Does anybody know what the problem might be?
> Thanks for any help, JCA
>
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-- 
Jeff Duda
Iowa State University
Meteorology Graduate Student
3134 Agronomy Hall
www.meteor.iastate.edu/~jdduda
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