[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[GEMPAK #HHT-608062]: Convert SPC's gempak file to grib2 file

This archive contains answers to questions sent to Unidata support through mid-2025. Note that the archive is no longer being updated. We provide the archive for reference; many of the answers presented here remain technically correct, even if somewhat outdated. For the most up-to-date information on the use of NSF Unidata software and data services, please consult the Software Documentation first.

  • Subject: [GEMPAK #HHT-608062]: Convert SPC's gempak file to grib2 file
  • Date: Wed, 09 Sep 2015 13:15:18 -0600
> ##############################################################
> #/bin/ksh
> gdgrib2=/nwprod/gempak/nawips/os/linux2.6.32_x86_64/bin/gdgrib2
> $gdgrib2 << EOF
> GDFILE =  spcsref_2015082609f087
> GBFILE =  output.grib2
> GFUNC =   CALRDS
> GDATTIM = ALL
> GLEVEL =  0
> GVCORD =  NONE
> PROJ   =  lcc/25;-95;25
> GRDAREA = 12.190;-133.459;57.290;-49.385
> KXKY    = 185; 129
> CPYFIL  =
> G2TBLS  =
> G2IS    =
> G2IDS   = ;9
> G2PDT   = 0|2;10;;;110;;;;;100;0;275000;255;0;0
> G2DRT   = |4
> WMOHDR =
> r
> EOF
> ###############################################################
> 
> But running this script get error, the message says:
> 
> Parameters requested:.
> GEMPAK-GDGRIB2> GEMPAK-GDGRIB2> GEMPAK-GDGRIB2> GEMPAK-GDGRIB2>
> GEMPAK-GDGRIB2> GEMPAK-GDGRIB2> GEMPAK-GDGRIB2> GEMPAK-GDGRIB2>
> GEMPAK-GDGRIB2> GEMPAK-GDGRIB2> GEMPAK-GDGRIB2> GEMPAK-GDGRIB2>
> GEMPAK-GDGRIB2> GEMPAK-GDGRIB2> GEMPAK-GDGRIB2> GEMPAK-GDGRIB2>
> GEMPAK-GDGRIB2> GEMPAK-GDGRIB2> [DG -22]
> [GDGRIB2 -20]
> 
> I would like to know what does mean this message?  


Hello Binbin,

Without a copy of the input file (spcsref_2015082609f087) I can not recreate 
this problem, only make a guess as to what is happening.  Is it possible for 
you to upload this file to the GEMPAK support repository ( 
http://motherlode.ucar.edu/repository/alias/gempakuploads/ ) so I have a copy 
to work with?

As for the problem, I can only speculate until I have the file.  Is it possible 
that you have not sourced the GEMPAK envvars correctly?  Has your shell sourced 
Gemenviron or Gemeenviron.profile?  You can check this with the command 
"env|grep GEMPAK" - which will return a number of environmental variables if 
you have sourced the correct file.




> I also tried to use
> interactive way, just type gdgrib2, enter gdgrib2
> GEMPAK-GDGRIB2>
> then type
> GDFILE =  spcsref_2015082609f087,
> GDFILE =  spcsref_2015082609f087.grib2
> GFUNC = CALRDS
> Since I won't change anything (keep original grid, time, etc), so I just
> type "r" to run
> But get error message saying:
> [DG -51]
> [GDGRIB2 -4]
> 
> Since I have very little knowledge about gdgrib2, could you please help me
> out of this?
> Thanks in advance!
> 
> Binbin Zhou
> EMC/NCEP
> 
> 

Ticket Details
===================
Ticket ID: HHT-608062
Department: Support GEMPAK
Priority: Normal
Status: Open