Re: 20040212: LDM - Linux 8 - pqact.conf file

• To: Rodney Jacques <rodney.jacques@xxxxxxxx>
• Subject: Re: 20040212: LDM - Linux 8 - pqact.conf file
• From: Robb Kambic <rkambic@xxxxxxxxxxxxxxxx>
• Date: Fri, 13 Feb 2004 09:12:16 -0700 (MST)

On Thu, 12 Feb 2004, Unidata Support wrote:

------- Forwarded Message

>To: support-ldm@xxxxxxxxxxxxxxxx
>From: "Rodney Jacques" <rodney.jacques@xxxxxxxx>
>Subject: LDM - Linux 8 - pqact.conf file
>Organization: Naval Postgraduate School
>Keywords: 200402130012.i1D0C9aC016212 netCDF decoders

Institution: Naval Postgraduate School / Department of Meteorology
Package Version: 6.0.14
Operating System: Linux 8
Hardware Information: Dell poweredge 2550
Inquiry: Hello,

We are currently running LDM 6.0.14 sucessfully to access data from NWS and FSL.
I have installed udunits, netcdfperl, netcdf, and the decoders package 
sucessfully on our system.
I seek to convert grib files to netcdf via the LDM.

Can you send me a slice of a pqact.conf file that shows:

1.  A grib file being downloaded
2.  A grib  file being upzipped
3. A grib file being converted from grib to netcdf and placed in a directory.

Rodney,

The pqact entries are attached to this email. Here's a sample entry:

# ETA model on Lambert conformal CONUS grid
HRS     ^Y.Q... KWB. (..)(..).*/mETA
       PIPE    /usr/local/ldm/decoders/gribtonc
       etc/eta_211.cdl
       data/pub/decoded/netcdf/GRIB/(\1:yyyy)(\1:mm)\1\2_eta_211.nc

These entries are for the decoders-3.0.2 version of the decoders package.
If you are using a older version, I suggest that you download and install
the new version.

Our goal is to obtain ETA12, GFS, NOGAPS, and WWIII files in a grib format and 
convert them to netcdf that can be read by GFE.

If the cdl is not included in the package, you can create the cdl using
the gribtocdl program that's included in the decoders package. There's a
man  page for the details. Here's a few hints on using gribtocdl:
- concatinate products into one file to represent all the variables you
 want in the output netCDF file
- gribtocdl only produces a starting point for the cdl file, you have to
 edit the cdl to get the desired results, ie adding vars, times, etc

To test decoding with error messages output to screen:

% gribtonc -l - file.cdl file.nc < rawGribFile

Robb...

Thanks in advance,

Rodney Jacques
NAVPACMETOCCEN
San Diego



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==============================================================================
Robb Kambic                                Unidata Program Center
Software Engineer III                      Univ. Corp for Atmospheric Research
rkambic@xxxxxxxxxxxxxxxx                   WWW: http://www.unidata.ucar.edu/
==============================================================================