EASE-Grid 2.0 Format Description
Version 2.0, the newest release of EASE-Grid, is defined with the WGS 84 ellipsoid rather than the spherical Earth model in the original. It offers the following enhancements and improvements:
- GeoTIFF compatibility
- Exact azimuthal grid scale
- Simplified nested grids
- No undefined "off-the-Earth" grid cells at corners of azimuthal grids
- With reprojection, comparisons can still be made to data in original EASE-Grid format
For a detailed comparison between the original EASE-Grid and EASE-Grid 2.0, please refer to the Versions page.
To import these data into a GIS, refer to the Importing NSIDC Passive Microwave EASE-Grid Data into a GIS page.
EASE-Grid 2.0 Data
Two major NASA-funded projects have adopted EASE-Grid 2.0 as the standard format for gridded data sets, including the Soil Moisture Active Passive (SMAP) project (data are forthcoming), and the MEaSUREs snow and ice project.
EASE Grid 2.0 Land-Ocean-Coast-Ice Masks
Corresponding Land-Ocean-Coast-Ice (LOCI) masks derived from BU-MODIS land cover data are included in a BU-MODIS tar file for use with EASE-Grid 2.0 Northern Hemisphere 25 km data. A .png version of the LOCI file is also included for quick illustration of the contents. For general documentation regarding these masks in the original EASE-Grid, refer to the BU-MODIS Land Cover section on the EASE-Grid Ancillary Data page.