We are pleased to announce that all data from the NASA Soil Moisture Active Passive (SMAP) mission are now available at the National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) and the NASA Alaska Satellite Facility Distributed Active Archive Center (ASF DAAC). The two NASA DAACs jointly manage SMAP science data on behalf of the NASA ESDIS Project.
SMAP combines coincident L-band radar and radiometer measurements to produce global, high-resolution soil moisture and freeze/thaw estimates. SMAP data available at the NSIDC DAAC include Level-1 through Level-4 radiometer data, Level-2 and Level-3 radar and combined radar/radiometer data, and Level-4 radiometer data. SMAP Level-1 radar data are available at the ASF DAAC.
Currently, Level-2 through Level-4 SMAP data are Beta-quality. Users should note that Beta-quality data use preliminary algorithms that are still being validated and are thus subject to uncertainties. Level-1 SMAP data have been processed to Validated. To access SMAP data and documentation, refer to the SMAP Data page.