Re: Problems decoding GRIB2 GFS Ensemble grids

Kevin,

I've been in touch with Steve Chiswell on this matter. He told to update a file (g2varswmo2.tbl) in $GEMTBL/grid, which I did, but I must have edited the file incorrectly. So, I asked him to post an updated file. If he doesn't email a notice to you or Gembud, I'll send you the file I get it.

James

----------------------------------------------
James Murakami
Staff Meteorologist/Student Affairs
Department of Atmospheric and Oceanic Sciences
University of California, Los Angeles
405 Hilgard Ave.
Los Angeles, CA  90095-1565


  e-mail:  tenki@xxxxxxxxxxxxxx
telephone:  310-825-2418
     Fax:  310-206-5219
-----------------------------------------------



Kevin R. Tyle wrote:

I've been attempting to decode the GFS ensemble data from the "new" CONDUIT NCEP ftp directory, as described in http://www.unidata.ucar.edu/data/conduit/ldm_idd/ensemble_files.html#GRIB2. However, dcgrib2 is not able to determine the GEMPAK parameter name, and no GEMPAK grid is created. I've attached the output from the dcgrib2 log.

Command line used: dcgrib2 -v 4 -d dcgrib.log YYMMHHDD_gefs_@@@.gem < gec00.t12z.pgrb2af48

Any ideas?

Thanks,

Kevin

______________________________________________________________________
Kevin Tyle, Systems Administrator               **********************
Dept. of Earth & Atmospheric Sciences           ktyle@xxxxxxxxxxxxxxxx
University at Albany, ES-235                    518-442-4578 (voice)
1400 Washington Avenue                          518-442-5825 (fax)
Albany, NY 12222                                **********************
______________________________________________________________________

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[28213] 061009/2117[DC 3]  Starting up. Version 5.9.3
[28213] 061009/2117[DC 2]  read 204799/204799 bytes strt 0 newstrt 204799
[28213] 061009/2117[GB 1]  No GEMPAK parameter name defined for this grid.
[28213] 061009/2117[DECODE_GRIB2 -34] Could not determine parameter name 0 3 5 
1 [0]
[28213] 061009/2117[DECODE_GRIB2 -34] numfields 1 numlocal 0
[28213] 061009/2117[GB 1]  No GEMPAK parameter name defined for this grid.
[28213] 061009/2117[DECODE_GRIB2 -34] Could not determine parameter name 0 3 5 
1 [0]
[28213] 061009/2117[DECODE_GRIB2 -34] numfields 1 numlocal 0
[28213] 061009/2117[GB 1]  No GEMPAK parameter name defined for this grid.
[28213] 061009/2117[DECODE_GRIB2 -34] Could not determine parameter name 0 3 5 
1 [0]
[28213] 061009/2117[DECODE_GRIB2 -34] numfields 1 numlocal 0
[28213] 061009/2117[GB 1]  No GEMPAK parameter name defined for this grid.
[28213] 061009/2117[DECODE_GRIB2 -34] Could not determine parameter name 0 3 5 
1 [0]
[28213] 061009/2117[DECODE_GRIB2 -34] numfields 1 numlocal 0
[28213] 061009/2117[GB 1]  No GEMPAK parameter name defined for this grid.
[28213] 061009/2117[DECODE_GRIB2 -34] Could not determine parameter name 0 3 5 
1 [0]
[28213] 061009/2117[DECODE_GRIB2 -34] numfields 1 numlocal 0
[28213] 061009/2117[DC 2]  read 1/1 bytes strt 204799 newstrt 204800
[28213] 061009/2117[DC 2]  read 204797/204797 bytes strt 0 newstrt 204797
[28213] 061009/2117[GB 1]  No GEMPAK parameter name defined for this grid.
[28213] 061009/2117[DECODE_GRIB2 -34] Could not determine parameter name 0 3 5 
1 [0]
[28213] 061009/2117[DECODE_GRIB2 -34] numfields 1 numlocal 0
[28213] 061009/2117[GB 1]  No GEMPAK parameter name defined for this grid.
[28213] 061009/2117[DECODE_GRIB2 -34] Could not determine parameter name 0 3 5 
1 [0]
[28213] 061009/2117[DECODE_GRIB2 -34] numfields 1 numlocal 0
[28213] 061009/2117[GB 1]  No GEMPAK parameter name defined for this grid.
[28213] 061009/2117[DECODE_GRIB2 -34] Could not determine parameter name 0 0 0 
1 [0]
[28213] 061009/2117[DECODE_GRIB2 -34] numfields 1 numlocal 0
[28213] 061009/2117[GB 1]  No GEMPAK parameter name defined for this grid.
[28213] 061009/2117[DECODE_GRIB2 -34] Could not determine parameter name 0 0 0 
1 [0]
[28213] 061009/2117[DECODE_GRIB2 -34] numfields 1 numlocal 0
[28213] 061009/2117[GB 1]  No GEMPAK parameter name defined for this grid.
[28213] 061009/2117[DECODE_GRIB2 -34] Could not determine parameter name 0 0 0 
1 [0]
[28213] 061009/2117[DECODE_GRIB2 -34] numfields 1 numlocal 0
[28213] 061009/2117[GB 1]  No GEMPAK parameter name defined for this grid.
[28213] 061009/2117[DECODE_GRIB2 -34] Could not determine parameter name 0 0 0 
1 [0]
[28213] 061009/2117[DECODE_GRIB2 -34] numfields 1 numlocal 0
[28213] 061009/2117[GB 1]  No GEMPAK parameter name defined for this grid.
[28213] 061009/2117[DECODE_GRIB2 -34] Could not determine parameter name 0 0 0 
1 [0]
[28213] 061009/2117[DECODE_GRIB2 -34] numfields 1 numlocal 0
[28213] 061009/2117[DC 2]  read 3/3 bytes strt 204797 newstrt 204800
[28213] 061009/2117[DC 2]  read 204795/204795 bytes strt 0 newstrt 204795
[28213] 061009/2117[GB 1]  No GEMPAK parameter name defined for this grid.
[28213] 061009/2117[DECODE_GRIB2 -34] Could not determine parameter name 0 0 0 
1 [0]
[28213] 061009/2117[DECODE_GRIB2 -34] numfields 1 numlocal 0
[28213] 061009/2117[GB 1]  No GEMPAK parameter name defined for this grid.
[28213] 061009/2117[DECODE_GRIB2 -34] Could not determine parameter name 0 0 0 
1 [0]
[28213] 061009/2117[DECODE_GRIB2 -34] numfields 1 numlocal 0
[28213] 061009/2117[GB 1]  No GEMPAK parameter name defined for this grid.
[28213] 061009/2117[DECODE_GRIB2 -34] Could not determine parameter name 0 1 1 
1 [0]
[28213] 061009/2117[DECODE_GRIB2 -34] numfields 1 numlocal 0
[28213] 061009/2117[GB 1]  No GEMPAK parameter name defined for this grid.
[28213] 061009/2117[DECODE_GRIB2 -34] Could not determine parameter name 0 1 1 
1 [0]
[28213] 061009/2117[DECODE_GRIB2 -34] numfields 1 numlocal 0
[28213] 061009/2117[GB 1]  No GEMPAK parameter name defined for this grid.
[28213] 061009/2117[DECODE_GRIB2 -34] Could not determine parameter name 0 1 1 
1 [0]
[28213] 061009/2117[DECODE_GRIB2 -34] numfields 1 numlocal 0
[28213] 061009/2117[GB 1]  No GEMPAK parameter name defined for this grid.
[28213] 061009/2117[DECODE_GRIB2 -34] Could not determine parameter name 0 1 1 
1 [0]
[28213] 061009/2117[DECODE_GRIB2 -34] numfields 1 numlocal 0
[28213] 061009/2117[GB 1]  No GEMPAK parameter name defined for this grid.
[28213] 061009/2117[DECODE_GRIB2 -34] Could not determine parameter name 0 1 1 
1 [0]
[28213] 061009/2117[DECODE_GRIB2 -34] numfields 1 numlocal 0
[28213] 061009/2117[DC 2]  read 5/5 bytes strt 204795 newstrt 204800
[28213] 061009/2117[DC 2]  read 204793/204793 bytes strt 0 newstrt 204793
[28213] 061009/2117[GB 1]  No GEMPAK parameter name defined for this grid.
[28213] 061009/2117[DECODE_GRIB2 -34] Could not determine parameter name 0 1 1 
1 [0]
[28213] 061009/2117[DECODE_GRIB2 -34] numfields 1 numlocal 0
[28213] 061009/2117[GB 1]  No GEMPAK parameter name defined for this grid.
[28213] 061009/2117[DECODE_GRIB2 -34] Could not determine parameter name 0 1 1 
1 [0]
[28213] 061009/2117[DECODE_GRIB2 -34] numfields 1 numlocal 0
[28213] 061009/2117[GB 1]  No GEMPAK parameter name defined for this grid.
[28213] 061009/2117[DECODE_GRIB2 -34] Could not determine parameter name 0 2 2 
1 [0]
[28213] 061009/2117[GB 1]  No GEMPAK parameter name defined for this grid.
[28213] 061009/2117[DECODE_GRIB2 -34] Could not determine parameter name 0 2 3 
1 [0]
[28213] 061009/2117[DECODE_GRIB2 -34] numfields 2 numlocal 0
[28213] 061009/2117[GB 1]  No GEMPAK parameter name defined for this grid.
[28213] 061009/2117[DECODE_GRIB2 -34] Could not determine parameter name 0 2 2 
1 [0]
[28213] 061009/2117[GB 1]  No GEMPAK parameter name defined for this grid.
[28213] 061009/2117[DECODE_GRIB2 -34] Could not determine parameter name 0 2 3 
1 [0]
[28213] 061009/2117[DECODE_GRIB2 -34] numfields 2 numlocal 0
[28213] 061009/2117[DC 2]  read 7/7 bytes strt 204793 newstrt 204800
[28213] 061009/2117[DC 2]  read 204791/204791 bytes strt 0 newstrt 204791
[28213] 061009/2117[GB 1]  No GEMPAK parameter name defined for this grid.
[28213] 061009/2117[DECODE_GRIB2 -34] Could not determine parameter name 0 2 2 
1 [0]
[28213] 061009/2117[GB 1]  No GEMPAK parameter name defined for this grid.
[28213] 061009/2117[DECODE_GRIB2 -34] Could not determine parameter name 0 2 3 
1 [0]
[28213] 061009/2117[DECODE_GRIB2 -34] numfields 2 numlocal 0
[28213] 061009/2117[GB 1]  No GEMPAK parameter name defined for this grid.
[28213] 061009/2117[DECODE_GRIB2 -34] Could not determine parameter name 0 2 2 
1 [0]
[28213] 061009/2117[GB 1]  No GEMPAK parameter name defined for this grid.
[28213] 061009/2117[DECODE_GRIB2 -34] Could not determine parameter name 0 2 3 
1 [0]
[28213] 061009/2117[DECODE_GRIB2 -34] numfields 2 numlocal 0
[28213] 061009/2117[GB 1]  No GEMPAK parameter name defined for this grid.
[28213] 061009/2117[DECODE_GRIB2 -34] Could not determine parameter name 0 2 2 
1 [0]
[28213] 061009/2117[GB 1]  No GEMPAK parameter name defined for this grid.
[28213] 061009/2117[DECODE_GRIB2 -34] Could not determine parameter name 0 2 3 
1 [0]
[28213] 061009/2117[DECODE_GRIB2 -34] numfields 2 numlocal 0
[28213] 061009/2117[DC 2]  read 9/9 bytes strt 204791 newstrt 204800
[28213] 061009/2117[DC 2]  read 204789/204789 bytes strt 0 newstrt 204789
[28213] 061009/2117[GB 1]  No GEMPAK parameter name defined for this grid.
[28213] 061009/2117[DECODE_GRIB2 -34] Could not determine parameter name 0 2 2 
1 [0]
[28213] 061009/2117[GB 1]  No GEMPAK parameter name defined for this grid.
[28213] 061009/2117[DECODE_GRIB2 -34] Could not determine parameter name 0 2 3 
1 [0]
[28213] 061009/2117[DECODE_GRIB2 -34] numfields 2 numlocal 0
[28213] 061009/2117[GB 1]  No GEMPAK parameter name defined for this grid.
[28213] 061009/2117[DECODE_GRIB2 -34] Could not determine parameter name 0 2 2 
1 [0]
[28213] 061009/2117[GB 1]  No GEMPAK parameter name defined for this grid.
[28213] 061009/2117[DECODE_GRIB2 -34] Could not determine parameter name 0 2 3 
1 [0]
[28213] 061009/2117[DECODE_GRIB2 -34] numfields 2 numlocal 0
[28213] 061009/2117[GB 1]  No GEMPAK parameter name defined for this grid.
[28213] 061009/2117[DECODE_GRIB2 -34] Could not determine parameter name 0 3 0 
1 [0]
[28213] 061009/2117[DECODE_GRIB2 -34] numfields 1 numlocal 0
[28213] 061009/2117[GB 1]  No GEMPAK parameter name defined for this grid.
[28213] 061009/2117[DECODE_GRIB2 -34] Could not determine parameter name 0 1 3 
1 [0]
[28213] 061009/2117[DECODE_GRIB2 -34] numfields 1 numlocal 0
[28213] 061009/2117[DC 2]  read 11/11 bytes strt 204789 newstrt 204800
[28213] 061009/2117[DC 2]  read 204787/204787 bytes strt 0 newstrt 204787
[28213] 061009/2117[GB 1]  No GEMPAK parameter name defined for this grid.
[28213] 061009/2117[DECODE_GRIB2 -34] Could not determine parameter name 0 7 6 
1 [0]
[28213] 061009/2117[DECODE_GRIB2 -34] numfields 1 numlocal 0
[28213] 061009/2117[GB 1]  No GEMPAK parameter name defined for this grid.
[28213] 061009/2117[DECODE_GRIB2 -34] Could not determine parameter name 0 3 1 
1 [0]
[28213] 061009/2117[DECODE_GRIB2 -34] numfields 1 numlocal 0
[28213] 061009/2117[GB 1]  No GEMPAK parameter name defined for this grid.
[28213] 061009/2117[DECODE_GRIB2 -34] Could not determine parameter name 0 0 0 
1 [0]
[28213] 061009/2117[DECODE_GRIB2 -34] numfields 1 numlocal 0
[28213] 061009/2117[GB 1]  No GEMPAK parameter name defined for this grid.
[28213] 061009/2117[DECODE_GRIB2 -34] Could not determine parameter name 0 0 4 
11 [0]
[28213] 061009/2117[DECODE_GRIB2 -34] numfields 1 numlocal 0
[28213] 061009/2117[GB 1]  No GEMPAK parameter name defined for this grid.
[28213] 061009/2117[DECODE_GRIB2 -34] Could not determine parameter name 0 0 5 
11 [0]
[28213] 061009/2117[DECODE_GRIB2 -34] numfields 1 numlocal 0
[28213] 061009/2117[GB 1]  No GEMPAK parameter name defined for this grid.
[28213] 061009/2117[DECODE_GRIB2 -34] Could not determine parameter name 0 6 1 
11 [0]
[28213] 061009/2117[DECODE_GRIB2 -34] numfields 1 numlocal 0
[28213] 061009/2117[DC 2]  read 13/13 bytes strt 204787 newstrt 204800
[28213] 061009/2117[DC 2]  read 115554/204785 bytes strt 0 newstrt 115554
[28213] 061009/2117[GB 1]  No GEMPAK parameter name defined for this grid.
[28213] 061009/2117[DECODE_GRIB2 -34] Could not determine parameter name 0 1 8 
11 [0]
[28213] 061009/2117[DECODE_GRIB2 -34] numfields 1 numlocal 0
[28213] 061009/2117[GB 1]  No GEMPAK parameter name defined for this grid.
[28213] 061009/2117[DECODE_GRIB2 -34] Could not determine parameter name 0 1 
192 11 [0]
[28213] 061009/2117[DECODE_GRIB2 -34] numfields 1 numlocal 0
[28213] 061009/2117[GB 1]  No GEMPAK parameter name defined for this grid.
[28213] 061009/2117[DECODE_GRIB2 -34] Could not determine parameter name 0 1 
193 11 [0]
[28213] 061009/2117[DECODE_GRIB2 -34] numfields 1 numlocal 0
[28213] 061009/2117[GB 1]  No GEMPAK parameter name defined for this grid.
[28213] 061009/2117[DECODE_GRIB2 -34] Could not determine parameter name 0 1 
194 11 [0]
[28213] 061009/2117[DECODE_GRIB2 -34] numfields 1 numlocal 0
[28213] 061009/2117[GB 1]  No GEMPAK parameter name defined for this grid.
[28213] 061009/2117[DECODE_GRIB2 -34] Could not determine parameter name 0 1 
195 11 [0]
[28213] 061009/2117[DECODE_GRIB2 -34] numfields 1 numlocal 0
[28213] 061009/2117[GB 1]  No GEMPAK parameter name defined for this grid.
[28213] 061009/2117[DECODE_GRIB2 -34] Could not determine parameter name 0 1 1 
1 [0]
[28213] 061009/2117[DECODE_GRIB2 -34] numfields 1 numlocal 0
[28213] 061009/2117[GB 1]  No GEMPAK parameter name defined for this grid.
[28213] 061009/2117[DECODE_GRIB2 -34] Could not determine parameter name 0 2 2 
1 [0]
[28213] 061009/2117[GB 1]  No GEMPAK parameter name defined for this grid.
[28213] 061009/2117[DECODE_GRIB2 -34] Could not determine parameter name 0 2 3 
1 [0]
[28213] 061009/2117[DECODE_GRIB2 -34] numfields 2 numlocal 0
[28213] 061009/2117[DC 2]  read 0/89246 bytes strt 115554 newstrt 115554
[28213] 061009/2117[DCGRIB -9] End of Data
[28213] 061009/2117[DC 5]  Normal termination.
[28213] 061009/2117[DC 2]  Number of bulletins read and processed: 43
[28213] 061009/2117[DC 6]  Shutting down.