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SMAP L2 Radiometer Half-Orbit 36 km EASE-Grid Soil Moisture V009

Published by NASA NSIDC DAAC | National Aeronautics and Space Administration | Metadata Last Checked: October 20, 2025 | Last Modified: 2025-03-31
This Level-2 (L2) soil moisture product provides estimates of global land surface conditions retrieved by the Soil Moisture Active Passive (SMAP) passive microwave radiometer during 6:00 a.m. descending and 6:00 p.m. ascending half-orbit passes. SMAP L-band brightness temperatures are resampled to an Earth-fixed, global, cylindrical 36 km Equal-Area Scalable Earth Grid, Version 2.0 (EASE-Grid 2.0) [and made available as the SPL1CTB product], and the gridded brightness temperatures are then used to derive gridded soil moisture data.

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