The NCEPLIBS-g2 library contains Fortran code to read and write GRIB edition 2 files, and itilities to manipulate GRIB2 files.
GRIdded Binary or General Regularly-distributed Information in Binary form (GRIB) is a data format for meteorological and forecast data, standardized by the World Meteorological Organization (WMO). GRIB edition 2 (GRIB2) was approved by the WMO is 2003.
This library is part of the NCEPLIBS project.
For more detailed documentation on this library see the NCEPLIBS-g2 documentation. For more information about GRIB2, see the NCEP WMO GRIB2 Documentation.
Starting with NCEPLIBS-g2-4.0.0, this library depends on the NCEPLIBS-g2c library.
Starting with NCEPLIBS-g2-4.0.0, this library includes the utilities formerly released in NCEPLIBS-grib_util. The NCEPLIBS-grib_util repository is deprecated.
To submit bug reports, feature requests, or other code-related issues including installation and usage questions, please create a GitHub issue. For general NCEPLIBS inquiries, contact Edward Hartnett (secondary point of contact Alex Richert).
| Utility | Purpose |
|---|---|
| cnvgrib | Convert between GRIB1 and GRIB2. |
| copygb | Copy all or part of a GRIB1 file. |
| copygb2 | Copy all or part of a GRIB2 file. |
| degrib2 | Inventory a GRIB2 file. |
| grb2index | Create an index from a GRIB1 file. |
| grbindex | Create an index from a GRIB2 file. |
| tocgrib | Copy some GRIB2 fields to a new GRIB1 file. |
| tocgrib2 | Copy some GRIB2 fields to a new GRIB2 file. |
| tocgrib2super | Copy some GRIB2 fields to a new GRIB2 file with super WMO header. |
| Repository | Notes |
|---|---|
| NCEPLIBS-ip | Interpolation. |
| NCEPLIBS-w3emc | Coders/decoders for GRIB1 |
| NCEPLIBS-g2c | C implementation of the GRIB 2 functions |
| NCEPLIBS-g2tmpl | Utilities for GRIB2 templates |
Harry Glahn, Kyle Gerheiser, Stephen Gilbert, Brent Gordon, Edward Hartnett, Mark Iredell, Hang Lei, Alyson Stahl, Boi Vuong, and other NOAA scientists and developers.
Code Manager: Hang Lei, Edward Hartnett
The following libraries are required:
This package requires the following third party libraries:
This package requires the following NCEPLIBS libraries:
- NCEPLIBS-g2c
- NCEPLIBS-ip
- NCEPLIBS-bacio
- NCEPLIBS-w3emc (optional)
cmake .. -DCMAKE_INSTALL_PREFIX=myg2 -DCMAKE_PREFIX_PATH="${PNG_LIBDIR};${PNG_INC};${JASPER_LIBDIR};${JASPER_INC}"
make
make install
Hartnett, E., Lei, H., Richert, A., Stahl, A., A New API for NOAA's GRIB2 Libraries, American Geophysical Union (AGU) 2024.
Hartnett, E., Ator, J, Lei, H., Richert, A., Woollen, J., King, A., Hartnett, A., NCEPLIBS GRIB and BUFR Libraries: Maintaining and Modernizing NOAA's Libraries for WMO Data Formats, American Geophysical Union (AGU) 2023. (See also poster).
Hartnett, E., Lei, H., Curtis, B, Gerheiser K., Presentation - Improving Documentation, Testing, Process, and Code for Legacy NOAA GRIB2 C Fortran Libraries, NCAR Improving Scientific Software, April 2022. .
Kumar, V. Krishna, Gilbert, Stephen A., GRIB2 conversion and its usage at NCEP, 14-18 November 2005, 10th Workshop on Meteorological Operational Systems ECMWF User Orientation.
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