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20040811: gdvint and gdattim

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  • Subject: 20040811: gdvint and gdattim
  • Date: Fri, 20 Aug 2004 11:31:20 -0600
Ryan,

Gdvint only accepts a single grid time. To process multiple times, you 
could create a short script to run the program for each model time.

Steve Chiswell
Unidata User Support


>From: Ryan Torn <address@hidden>
>Organization: UCAR/Unidata
>Keywords: 200408111527.i7BFRuaW010346

>I have been using gdvint to perform vertical interpolations of model 
>output from sigma to pressure coordinates.  I want to do the 
>interpolations for all times within the file, instead of one forecast 
>time at a time, but I have not had any success.  I have tried using 
>gdattim=fall, but that does not seem to work.  Can you only interpolate 
>one forecast time at a time with gdvint?  If you can do multiple times 
>per run, what do you use for gdattim?  Here are the settings I use in 
>gdvint:
>
> GDFILE    Grid file                         wrfout_temp.gem
> GDOUTF    Output grid file                  wrfout_rt.gem
> GDATTIM   Grid date/time                    fall
> GVCORD    Grid vertical coordinate          sgma:50/pres
> GLEVEL    Grid level                        1000;975;950;925;850;700;600
> MAXGRD    Maximum number of grids           2000
> GAREA     Graphics area                     grid
> VCOORD    Vertical coordinate type          NONE/L
> Parameters requested: GDFILE,GDOUTF,GDATTIM,GVCORD,GLEVEL,MAXGRD,GAREA,
> VCOORD.
> GEMPAK-GDVINT>r
> [TG -1]  Invalid date or time.
> [GDVINT -8]  Too few levels to interpolate this parameter.
> Parameters requested: GDFILE,GDOUTF,GDATTIM,GVCORD,GLEVEL,MAXGRD,GAREA,
> VCOORD
>
>Thank you.
>
>Ryan
>
>-- 
>Ryan Torn
>Graduate Student
>Dept of Atmospheric Sciences
>University of Washington, Box 351640
>Seattle, WA 98195
>Phone 206-685-1851
>
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