What is the GRIB format? How can I interpret it?
The GRIB (GRIdded Binary) format is a mathematically concise data format commonly used in meteorology to store historical and forecasted weather data. For more details about the GRIB format, please see http://www.nco.ncep.noaa.gov/pmb/docs/on388/ WGRIB, GrADS, or other GRIB readers are required for reading the GLDAS data. WGRIB is a program to manipulate, inventory, and decode GRIB files. The source code and installation instructions for WGRIB are available from http://www.cpc.ncep.noaa.gov/products/wesley/wgrib.html The Grid Analysis and Display System (GrADS) is an interactive desktop tool for easy access, manipulation, and visualization of earth science data. The format of the data may be either binary, GRIB, NetCDF, or HDF. The documentation and software for GrADS can be found at http://grads.iges.