[gradsusr] problem running the script skew.gs

[Juan Carlos Anduckia]

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 / glaubermariano at gmail.com




2010/11/16 Juan Carlos Anduckia <janducki at 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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