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[GEMPAK #GRE-217368]: CFSR Diabatic Heating Grids

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  • Subject: [GEMPAK #GRE-217368]: CFSR Diabatic Heating Grids
  • Date: Mon, 29 Apr 2013 15:22:03 -0600
Hi Shawn,

The error you are seeing means entries are not found in grib tables (files in 
$GEMTBL/grid/).  You can see the order of files checked by using "dcgrib2": 

mjames@imogene:~/cfsr> dcgrib2 file2.gem < diabf00.gdas.2011020100.grb2
 Opening WMO Originating Center Table wmocenter.tbl...
 Opening Local GRIB2 Parameter Table g2varsncep1.tbl...
 Opening WMO GRIB2 Vertical Coordinate Table g2vcrdwmo2.tbl...
 Opening WMO GRIB2 Parameter Table g2varswmo2.tbl...

Looking at the file produced by this, only CLDA and PRES are found in the grib 
tables, so that's all that is being decoded.

The fix for this is to add new grib tables or entries to existing tables for 
all parameters in the reanalysis grib2 files.  Easier than it sounds!

I will see if the folks at NCEP have tables already.  Otherwise we will need to 
create them manually.

Michael James
Unidata



> 
> I'm currently working with the NCEP Climate Forecast System Reanalysis.  
> While the pressure-level data converted successfully from .grb2 to .gem, the 
> Diabatic Heating grids are giving me persistent "No GEMPAK parameter name 
> defined for this grid" when I run nagrib2.  Is there an additional table or 
> something that I need to specify when I try to convert the diabatic heating 
> grids?
> 
> Thanks,
> Shawn Milrad
> 
> 

Ticket Details
===================
Ticket ID: GRE-217368
Department: Support GEMPAK
Priority: Normal
Status: Open