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20041210: GFUNC=P48M vs. filing by forecast hour

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  • Subject: 20041210: GFUNC=P48M vs. filing by forecast hour
  • Date: Fri, 10 Dec 2004 12:41:02 -0700
Art,

By using the file type alias, such as GFS004, GEMPAK will
be able to open the files needed for the computations.

I just verified that I was able to plot P048M for
gdattim=f048-f084 at 3 hour time steps.

You wouldn't be able to do this if you were using a filename for GDFILE instead
of an alias however.

Steve Chiswell
Unidata User Support


>From: "Arthur A. Person" <address@hidden>
>Organization: UCAR/Unidata
>Keywords: 200412101917.iBAJGvlI005290

>Hi...
>
>We make use of the precipitation summing function P48M in gempak but it 
>would appear to depend on all the forecast data being in one file.  With 
>the new approach in gempak 5.7.4 of breaking the model forecast hours out 
>into separate files for some models, the P48M function would no longer 
>work.  Is this true, or is there another way to do this function with 
>forecast hours being in multiple files (short of laboriously looping 
>through all the files and summing a bunch of grids)?
>
>                              Thanks.
>
>                                Art.
>
>Arthur A. Person
>Research Assistant, System Administrator
>Penn State Department of Meteorology
>email:  address@hidden, phone:  814-863-1563
>
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