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SMAP Data Access and Tools

NASA's Soil Moisture Active Passive (SMAP) data products include information about soil moisture and freeze thaw state. Additional Level 4 value-added products are available. Data tools such as Vertex and Earthdata Search enable users to discover and download data.

Datasets

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Dataset Instrument Temporal Extent Version Data State Data Format Science Keywords
RSS SMAP Level 3 Sea Surface Salinity Standard Mapped Image 8-Day Running Mean V4.0 Validated Dataset SMAP L-BAND RADIOMETER 2015-03-27 4.0 ACTIVE netCDF-4 Salinity
RSS SMAP Level 3 Sea Surface Salinity Standard Mapped Image 8-Day Running Mean V5.0 Validated Dataset SMAP L-BAND RADIOMETER 2015-03-27 5.0 ACTIVE netCDF-4 Salinity
RSS SMAP Level 3 Sea Surface Salinity Standard Mapped Image 8-Day Running Mean V5.3 Evaluation Dataset SMAP L-BAND RADIOMETER 2015-03-27 to 2024-01-05 5.3 COMPLETE netCDF-4 Salinity
RSS SMAP Level 3 Sea Surface Salinity Standard Mapped Image 8-Day Running Mean V6.0 Validated Dataset SMAP L-BAND RADIOMETER 2015-03-27 6.0 ACTIVE netCDF-4 Salinity
RSS SMAP Level 3 Sea Surface Salinity Standard Mapped Image Monthly V4.0 Validated Dataset SMAP L-BAND RADIOMETER 2015-04-01 4.0 ACTIVE netCDF-4 Salinity
RSS SMAP Level 3 Sea Surface Salinity Standard Mapped Image Monthly V5.0 Validated Dataset SMAP L-BAND RADIOMETER 2015-04-01 5.0 ACTIVE netCDF-4 Salinity
RSS SMAP Level 3 Sea Surface Salinity Standard Mapped Image Monthly V5.3 Evaluation Dataset SMAP L-BAND RADIOMETER 2015-04-01 to 2024-01-01 5.3 COMPLETE netCDF-4 Salinity
RSS SMAP Level 3 Sea Surface Salinity Standard Mapped Image Monthly V6.0 Validated Dataset SMAP L-BAND RADIOMETER 2015-04-01 6.0 ACTIVE netCDF-4 Salinity
SMAP Enhanced L1C Radiometer Half-Orbit 9 km EASE-Grid Brightness Temperatures V002 SMAP L-BAND RADIOMETER 2015-03-31 to 2020-08-27 002 DEPRECATED HDF5 Brightness Temperature
SMAP Enhanced L1C Radiometer Half-Orbit 9 km EASE-Grid Brightness Temperatures V003 SMAP L-BAND RADIOMETER 2015-03-31 to 2023-12-04 003 DEPRECATED HDF5 Brightness Temperature
SMAP Enhanced L1C Radiometer Half-Orbit 9 km EASE-Grid Brightness Temperatures V004 SMAP L-BAND RADIOMETER 2015-03-31 to Present 004 ACTIVE HDF5 Brightness Temperature
SMAP Enhanced L2 Radiometer Half-Orbit 9 km EASE-Grid Soil Moisture V001 SMAP L-BAND RADAR 2015-03-31 to 2018-06-04 001 DEPRECATED HDF5 Brightness Temperature, Soil Moisture/Water Content
SMAP Enhanced L2 Radiometer Half-Orbit 9 km EASE-Grid Soil Moisture V002 SMAP L-BAND RADAR 2015-03-31 to 2019-08-13 002 DEPRECATED HDF5 Brightness Temperature, Soil Moisture/Water Content
SMAP Enhanced L2 Radiometer Half-Orbit 9 km EASE-Grid Soil Moisture V003 SMAP L-BAND RADIOMETER 2015-03-31 to 2020-08-27 003 DEPRECATED HDF5 Surface Soil Moisture
SMAP Enhanced L2 Radiometer Half-Orbit 9 km EASE-Grid Soil Moisture V004 SMAP L-BAND RADIOMETER 2015-03-31 to 2021-10-28 004 DEPRECATED HDF5 Surface Soil Moisture
SMAP Enhanced L2 Radiometer Half-Orbit 9 km EASE-Grid Soil Moisture V005 SMAP L-BAND RADIOMETER 2015-03-31 to 2023-12-04 005 DEPRECATED HDF5 Brightness Temperature, Surface Soil Moisture
SMAP Enhanced L2 Radiometer Half-Orbit 9 km EASE-Grid Soil Moisture V006 SMAP L-BAND RADIOMETER 2015-03-31 to Present 006 ACTIVE HDF5 Brightness Temperature, Surface Soil Moisture
SMAP Enhanced L3 Radiometer Global and Northern Hemisphere Daily 9 km EASE-Grid Freeze/Thaw State V002 SMAP L-BAND RADIOMETER 2015-03-31 to 2020-08-27 002 DEPRECATED HDF5 Transition Direction
SMAP Enhanced L3 Radiometer Global and Northern Hemisphere Daily 9 km EASE-Grid Freeze/Thaw State V003 SMAP L-BAND RADIOMETER 2015-03-31 to 2023-12-02 003 DEPRECATED HDF5 Brightness Temperature, Freeze/Thaw, Transition Direction
SMAP Enhanced L3 Radiometer Global and Northern Hemisphere Daily 9 km EASE-Grid Freeze/Thaw State V004 SMAP L-BAND RADIOMETER 2015-03-31 to Present 004 ACTIVE HDF5 Transition Direction
SMAP Enhanced L3 Radiometer Global and Polar Grid Daily 9 km EASE-Grid Soil Moisture V005 SMAP L-BAND RADIOMETER 2015-03-31 to 2023-12-02 005 DEPRECATED HDF5 Brightness Temperature, Surface Soil Moisture
SMAP Enhanced L3 Radiometer Global and Polar Grid Daily 9 km EASE-Grid Soil Moisture V006 SMAP L-BAND RADIOMETER 2015-03-31 to Present 006 ACTIVE HDF5 Brightness Temperature, Surface Soil Moisture
SMAP Enhanced L3 Radiometer Global Daily 9 km EASE-Grid Soil Moisture V001 SMAP L-BAND RADAR 2015-03-31 to 2018-06-03 001 DEPRECATED HDF5 Brightness Temperature, Soil Moisture/Water Content
SMAP Enhanced L3 Radiometer Global Daily 9 km EASE-Grid Soil Moisture V002 SMAP L-BAND RADIOMETER 2015-03-31 to 2019-08-12 002 DEPRECATED HDF5 Brightness Temperature, Soil Moisture/Water Content
SMAP Enhanced L3 Radiometer Global Daily 9 km EASE-Grid Soil Moisture V003 SMAP L-BAND RADIOMETER 2015-03-31 to 2020-08-27 003 DEPRECATED HDF5 Surface Soil Moisture
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SMAP Data Tools

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Tool Description Services
HiTIDE Use HiTIDE to subset and download popular Level 2 (swath) datasets. Search and Discovery, Subsetting, Downloading
SOTO State of the Ocean (SOTO) is an interactive web-based tool that generates informative maps, animations, and plots that communicate and prove the discovery and analysis of the state of the oceans. Analysis, Search and Discovery, Visualization
Worldview Worldview offers the capability to interactively browse over 1,200 global, full-resolution satellite imagery layers and download the underlying data. Analysis, Search and Discovery, Visualization, Access, Comparison, Monitoring Natural Events
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