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Description
This data product contains global daily 1 km resolution surface soil moisture derived from the SMAP L-band radiometer. Specifically, MODIS land surface temperature data is used with the SMAP Enhanced L2radiometer Half-Orbit 9 km EASE-Grid Soil Moisture product in a downscaling algorithm to estimate soil moisture. The data set is validated by in situ soil moisture measurements from dense soil moisture networks representing different global land cover types.
Citation is critically important for dataset documentation and discovery. This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use and Citation Guidance.
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Lakshmi, V., & Fang, B. (2023). SMAP-Derived 1-km Downscaled Surface Soil Moisture Product, Version 1 [Data set]. NASA National Snow and Ice Data Center Distributed Active Archive Center. https://doi.org/10.5067/U8QZ2AXE5V7B Date Accessed: 2026-05-03
Lakshmi, Venkataraman, and Bin Fang. “SMAP-Derived 1-Km Downscaled Surface Soil Moisture Product, Version 1.” NASA National Snow and Ice Data Center Distributed Active Archive Center, 2023. doi:10.5067/U8QZ2AXE5V7B. Date Accessed: 2026-05-03
Lakshmi, Venkataraman, and Bin Fang. SMAP-Derived 1-Km Downscaled Surface Soil Moisture Product, Version 1. NASA National Snow and Ice Data Center Distributed Active Archive Center, 2023, doi:10.5067/U8QZ2AXE5V7B. Date Accessed: 2026-05-03
Majumdar, Sayantan, Smith, Ryan G., Hasan, Md Fahim, Wilson, Jordan L., White, Vincent E., Bristow, Emilia L., Rigby, J.R., Kress, Wade H., Painter, Jaime A.