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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
SMAP L3 Radar Global Daily 3 km EASE-Grid Soil Moisture V003 SMAP L-BAND RADAR 2015-04-13 to 2015-07-07 003 COMPLETE HDF5 SIGMA NAUGHT, Soil Moisture/Water Content
SMAP L3 Radar Northern Hemisphere Daily 3 km EASE-Grid Freeze/Thaw State V003 SMAP L-BAND RADAR 2015-04-13 to 2015-07-07 003 COMPLETE HDF5 Freeze/Thaw, SIGMA NAUGHT, Transition Direction
SMAP L3 Radar/Radiometer Global Daily 9 km EASE-Grid Soil Moisture V003 SMAP L-BAND RADAR, SMAP L-BAND RADIOMETER 2015-04-13 to 2015-07-07 003 COMPLETE HDF5 Brightness Temperature, SIGMA NAUGHT, Soil Moisture/Water Content
SMAP L3 Radiometer Global and Northern Hemisphere Daily 36 km EASE-Grid Freeze/Thaw State V002 SMAP L-BAND RADIOMETER 2015-03-31 to 2020-08-27 002 DEPRECATED HDF5 Transition Direction
SMAP L3 Radiometer Global and Northern Hemisphere Daily 36 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 L3 Radiometer Global and Northern Hemisphere Daily 36 km EASE-Grid Freeze/Thaw State V004 SMAP L-BAND RADIOMETER 2015-03-31 to Present 004 ACTIVE HDF5 Transition Direction
SMAP L3 Radiometer Global Daily 36 km EASE-Grid Soil Moisture V001 SMAP L-BAND RADAR 2015-09-10 to 2015-10-24 001 DEPRECATED HDF5 Albedo, Brightness Temperature, Surface Roughness, Surface Soil Moisture, Vegetation Water Content
SMAP L3 Radiometer Global Daily 36 km EASE-Grid Soil Moisture V002 SMAP L-BAND RADAR 2015-03-31 to 2016-04-20 002 DEPRECATED HDF5, HDF5 Brightness Temperature, Soil Moisture/Water Content
SMAP L3 Radiometer Global Daily 36 km EASE-Grid Soil Moisture V003 SMAP L-BAND RADAR 2015-03-31 to 2016-12-06 003 DEPRECATED HDF5, HDF5 Brightness Temperature, Soil Moisture/Water Content
SMAP L3 Radiometer Global Daily 36 km EASE-Grid Soil Moisture V004 SMAP L-BAND RADAR 2015-03-31 to 2018-06-03 004 DEPRECATED HDF5 Brightness Temperature, Soil Moisture/Water Content
SMAP L3 Radiometer Global Daily 36 km EASE-Grid Soil Moisture V005 SMAP L-BAND RADIOMETER 2015-03-31 to 2019-08-12 005 DEPRECATED HDF5 Brightness Temperature, Soil Moisture/Water Content
SMAP L3 Radiometer Global Daily 36 km EASE-Grid Soil Moisture V006 SMAP L-BAND RADIOMETER 2015-03-31 to 2020-08-27 006 DEPRECATED HDF5 Surface Soil Moisture
SMAP L3 Radiometer Global Daily 36 km EASE-Grid Soil Moisture V007 SMAP L-BAND RADIOMETER 2015-03-31 to 2021-10-28 007 DEPRECATED HDF5 Surface Soil Moisture
SMAP L3 Radiometer Global Daily 36 km EASE-Grid Soil Moisture V008 SMAP L-BAND RADIOMETER 2015-03-31 to 2023-12-02 008 DEPRECATED HDF5 Brightness Temperature, Surface Soil Moisture
SMAP L3 Radiometer Global Daily 36 km EASE-Grid Soil Moisture V009 SMAP L-BAND RADIOMETER 2015-03-31 to Present 009 ACTIVE HDF5 Brightness Temperature, Surface Soil Moisture
SMAP L4 9 km EASE-Grid Surface and Root Zone Soil Moisture Analysis Update V001 SMAP L-BAND RADAR 2015-03-31 to 2016-04-22 001 DEPRECATED HDF5, HDF5 Soil Moisture/Water Content
SMAP L4 9 km EASE-Grid Surface and Root Zone Soil Moisture Analysis Update V002 SMAP L-BAND RADAR 2015-03-31 to 2017-07-15 002 DEPRECATED HDF5, HDF5 Root Zone Soil Moisture, Surface Soil Moisture
SMAP L4 9 km EASE-Grid Surface and Root Zone Soil Moisture Analysis Update V003 SMAP L-BAND RADAR 2015-03-31 to 2018-06-05 003 DEPRECATED HDF5 Root Zone Soil Moisture, Surface Soil Moisture
SMAP L4 9 km EASE-Grid Surface and Root Zone Soil Moisture Geophysical Data V001 SMAP L-BAND RADAR 2015-03-31 to 2016-04-22 001 DEPRECATED HDF5, HDF5 Soil Moisture/Water Content
SMAP L4 9 km EASE-Grid Surface and Root Zone Soil Moisture Geophysical Data V002 SMAP L-BAND RADAR 2015-03-31 to 2017-07-15 002 DEPRECATED HDF5, HDF5 Root Zone Soil Moisture, Surface Soil Moisture
SMAP L4 9 km EASE-Grid Surface and Root Zone Soil Moisture Geophysical Data V003 SMAP L-BAND RADAR 2015-03-31 to 2018-06-05 003 DEPRECATED HDF5 Root Zone Soil Moisture, Surface Soil Moisture
SMAP L4 9 km EASE-Grid Surface and Root Zone Soil Moisture Land Model Constants V001 SMAP L-BAND RADAR 2015-03-31 to 2015-10-26 001 DEPRECATED HDF5, HDF5 Soil Moisture/Water Content
SMAP L4 9 km EASE-Grid Surface and Root Zone Soil Moisture Land Model Constants V002 SMAP L-BAND RADAR 2015-03-31 002 DEPRECATED HDF5, HDF5 Soil Classification, Soil Depth, Soil Porosity, Soil Texture, Terrain Elevation
SMAP L4 9 km EASE-Grid Surface and Root Zone Soil Moisture Land Model Constants V003 SMAP L-BAND RADAR 2015-03-31 003 DEPRECATED HDF5 Soil Classification, Soil Depth, Soil Porosity, Soil Texture, Terrain Elevation
SMAP L4 Global 3-hourly 9 km EASE-Grid Surface and Root Zone Soil Moisture Analysis Update V004 SMAP L-BAND RADIOMETER 2015-03-31 to 2020-08-27 004 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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