
   This directory contains example for the GRIB decoding and how to handle
a Unix file containing GRIB edition 1 products in an indexed fashion.

   GRIB data are in ../data directory.

   make

   will compile both examples

   Before you run you have to set two environment variables:
   ECMWF_LOCAL_TABLE_PATH and LOCAL_DEFINITION_TEMPLATES

   or just run:

   ./test.sh

agrdemo.F :

Executable version of agrdemo.F can be run:
 
./agrdemo -i ../data/latlon.grib

   It will print a listing of the Grib header records together
with a few of the data values.
   Also, you can run ./agrdemo for different sort of grib data:
gaussian.grib , spectral.grib , latlon.grib

find_t.F :

 This program uses PBGPARM to locate temperature fields in a file of GRIB
products and writes them to a target file.

./find_t -i ../data/850ght.grib -o outputfile

Program can be easy modified to select the geopotencial field instead
