LouJo/grib2dec

Grib2 parser C/C++ library

grib2dec

grib2dec is a C/C++ library to parse files in grib2 format.

What it does ?

• For now, complex packing and complex packing with spatial differencing data representations are implemented.

• Spatial filter capability : fetch data from a subregion

• C and C++ interfaces

Why ?

Because I was stuck with g2clib, the C library to decode grib2, that didn't work. I hope this library will be easy to extand when needed.

How ?

• Compile library and demo program with cmake && make. Install it with make install.

• Library usage exemple: see apps/grib2dec.cpp

• demo program : run ./apps/grib2dec for usage help.

Grib2 ressources

• grib2 format documentation from noaa : https://www.nco.ncep.noaa.gov/pmb/docs/grib2/grib2_doc/

• NOAA winds download: https://nomads.ncep.noaa.gov/cgi-bin/filter_gfs_1p00.pl (select "10m above ground", and UGRD and VGRD variables).

• Files Usage help for virtual-regatta : http://www.tecepe.com.br/wiki/index.php?title=NOAAWinds