The GLDAS elevation field is based on the GTOPO30 Global 30 Arc Second (~1km) Elevation Dataset. The GTOPO elevation was averaged up to the GLDAS resolutions at 0.25 degree and 1 degree. The meteorological forcing fields (i.e. temperature, pressure, humidity and longwave radiation) are adjusted for differences in the GLDAS elevation and respective model terrain height, following Cosgrove et al. (2003).
- Elevation data (NetCDF format) : 0.25 degree, 1 degree
- Elevation data in Binary format (zip file including big_endian binary data, Fortran code, GrADS control file, and Python script to read in the 0.25 degree data contributed by Daniel McEvoy): 0.25 degree, 1 degree
The same GTOPO30 elevation data is used in GLDAS-1 products. The difference from above GLDAS-2 elevation data is simply the land mask applied (i.e. UMD land cover based land mask in GLDAS-1 vs. MOD44W based in GLDAS-2).
- Elevation Binary Datafiles (big_endian): 1/4 degree, 1 degree
- Fortran code to read data: 1/4 degree, 1 degree
- GrADS Control Files: 1/4 degree, 1 degree