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[GEMPAK #RUX-727661]: Ability of GEMPAK to dump/list data files in ASCII format

Massoud,

You have to use the appropriate GEMPAK name for a given parameter.
The grib1 parameter #61 for example is decoded to the GEMPAK parameter P--M 
as can be seen in $GEMTBL/grid/wmogrib2.tbl, eg:
061 Total precipitation               kg m**-2             P--M             0   
  -0.01 etc...

The "--" in the P--M will be replaced by the time period of accumulation
(generally 03, 06, 09, or 12 for the NAM or GFS grids you are referring to).

See "phelp gfunc" or 
http://www.unidata.ucar.edu/software/gempak/help_and_documentation/manual/variables/chap3.php?parm=gparm


      In addition, precipitation will be converted from inches (I) to
      millimeters (M) and vice versa, if the grids are named P__M or
      P__I.  The middle characters are numbers giving the time interval
      over which the precipitation accumulated. For example, P24M is
      a 24-hour precipitation total.

To see all the parameters available in the file, set GFUNC=all in gdinfo
so that you can become familiar with the contents of your decoded file.

Steve Chiswell
Unidata User SUpport





> Hi Steve,
> 
> I'm currently using GDINFO to locate PRECIP grids,
> however, I'm running into some problems finding info for
> 80 km GFS 211 and 80 NAM 211.
> 
> [gempak@wimden bin]$ ./gdinfo
> Parameters requested:
> GDFILE,LSTALL,OUTPUT,GDATTIM,GLEVEL,GVCORD,GFUNC.
> GEMPAK-GDINFO>gdfile=nam80
> GEMPAK-GDINFO>lstall=yes
> GEMPAK-GDINFO>output=t
> GEMPAK-GDINFO>gdattim=all
> GEMPAK-GDINFO>glevel=all
> GEMPAK-GDINFO>gvcord=all
> GEMPAK-GDINFO>gfunc=precip
> GEMPAK-GDINFO>r
> 
> GRID FILE:
> /home/ldm/data/gempak/model/nam/2007071112_nam211.gem
> 
> GRID NAVIGATION:
> PROJECTION:          LCC
> ANGLES:                25.0   -95.0    25.0
> GRID SIZE:           93  65
> LL CORNER:              12.19   -133.46
> UR CORNER:              57.29    -49.38
> 
> GRID ANALYSIS BLOCK:
> UNKNOWN ANALYSIS TYPE
> 
> Number of grids in file:  1847
> 
> Maximum number of grids in file:   5000
> 
> [GDU 2]  Did not find any matching grids.
> [GDU 2]  Did not find any matching grids.
> [GDU 2]  Did not find any matching grids.
> [GDU 2]  Did not find any matching grids.
> [GDU 2]  Did not find any matching grids.
> [GDU 2]  Did not find any matching grids.
> [GDU 2]  Did not find any matching grids.
> [GDU 2]  Did not find any matching grids.
> [GDU 2]  Did not find any matching grids.
> [GDU 2]  Did not find any matching grids.
> [GDU 2]  Did not find any matching grids.
> 
> [gempak@wimden bin]$ ./gdinfo
> GDFILE    Grid file                         nam80
> LSTALL    Full list flag                    yes
> OUTPUT    Output device/filename     t
> GDATTIM   Grid date/time                all
> GLEVEL    Grid level                        all
> GVCORD    Grid vertical coordinate   all
> GFUNC     Scalar grid                       precip
> Parameters requested:
> GDFILE,LSTALL,OUTPUT,GDATTIM,GLEVEL,GVCORD,GFUNC.
> GEMPAK-GDINFO>gdfile=gfs80
> GEMPAK-GDINFO>lstall=yes
> GEMPAK-GDINFO>output=t
> GEMPAK-GDINFO>gdattim=all
> GEMPAK-GDINFO>glevel=all
> GEMPAK-GDINFO>gvcord=all
> GEMPAK-GDINFO>gfunc=precip
> GEMPAK-GDINFO>r
> [gempak@wimden bin]$
> 
> Any insights why this may be happening? Thanks for your
> time.
> 
> Massoud Fazal
> UARC Systems Teaching Institute
> NASA Ames Research Center
> Moffett Field, CA 94035
> (650)-604-0225
> 
> 


Ticket Details
===================
Ticket ID: RUX-727661
Department: Support GEMPAK
Priority: High
Status: Closed