This Level-3 (L3) soil moisture product provides a daily composite of global land surface conditions retrieved by both the Soil Moisture Active Passive (SMAP) radar and radiometer. SMAP L-band soil moisture data are resampled to an Earth-fixed, global, cylindrical 9 km Equal-Area Scalable Earth Grid, Version 2.0 (EASE-Grid 2.0).
SMAP L3 Radar/Radiometer Global Daily 9 km EASE-Grid Soil Moisture, Version 3
This is the most recent version of these data.
Changes to this version include:
- Transitioned to Validated-Stage 2
- Using SPL2SMAP V3 Validated data as input
For the full major and minor version history, go to https://nsidc.org/data/smap/data_versions.
COMPREHENSIVE Level of Service
Data: Data integrity and usability verified; data customization services available for select data
Documentation: Key metadata and comprehensive user guide available
User Support: Assistance with data access and usage; guidance on use of data in tools and data customization services
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As a condition of using these data, you must cite the use of this data set using the following citation. For more information, see our Use and Copyright Web page.
Entekhabi, D., N. Das, E. G. Njoku, J. T. Johnson, and J. Shi. 2016. SMAP L3 Radar/Radiometer Global Daily 9 km EASE-Grid Soil Moisture, Version 3. [Indicate subset used]. Boulder, Colorado USA. NASA National Snow and Ice Data Center Distributed Active Archive Center. doi: https://doi.org/10.5067/7KKNQ5UURM2W. [Date Accessed].