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.
| Dataset | Instrument | Temporal Extent | Version | Data State | Data Format | Science Keywords |
|---|---|---|---|---|---|---|
| SMAP_L1A_RADAR_RECEIVE_ONLY_METADATA_V003 | SAR | 2015-02-12 to 2026-11-01 | 3 | ACTIVE | ORBITAL CHARACTERISTICS, RADAR IMAGERY, SIGMA NAUGHT | |
| SMAP_L1A_RADAR_RECEIVE_ONLY_QA_V003 | SAR | 2015-02-12 to 2026-11-01 | 3 | ACTIVE | ORBITAL CHARACTERISTICS, RADAR IMAGERY, SIGMA NAUGHT | |
| SMAP_L1A_RADAR_RECEIVE_ONLY_V003 | SAR | 2015-02-12 to 2026-11-01 | 3 | ACTIVE | ORBITAL CHARACTERISTICS, RADAR IMAGERY, SIGMA NAUGHT | |
| SMAP L4 Global Daily 9 km EASE-Grid Carbon Net Ecosystem Exchange V008 | MODIS, NOT APPLICABLE, SMAP L-BAND RADIOMETER, VIIRS | 2015-03-31 to Present | 008 | ACTIVE | HDF5 | Gross Primary Production (gpp), Heterotrophic Respiration (rh), NET ECOSYSTEM CO2 EXCHANGE (NEE), Soil Organic Carbon (SOC) |
| SMAP L4 Global 3-hourly 9 km EASE-Grid Surface and Root Zone Soil Moisture Geophysical Data V008 | NOT APPLICABLE, SMAP L-BAND RADIOMETER | 2015-03-31 to Present | 008 | ACTIVE | HDF5 | Root Zone Soil Moisture, Surface Soil Moisture |
| SMAP L4 Global 3-hourly 9 km EASE-Grid Surface and Root Zone Soil Moisture Analysis Update V008 | NOT APPLICABLE, SMAP L-BAND RADIOMETER | 2015-03-31 to Present | 008 | ACTIVE | HDF5 | Root Zone Soil Moisture, Surface Soil Moisture |
| SMAP L4 Global 9 km EASE-Grid Surface and Root Zone Soil Moisture Land Model Constants V008 | NOT APPLICABLE, SMAP L-BAND RADIOMETER | 2015-03-31 to Present | 008 | ACTIVE | HDF5 | Soil Classification, Soil Depth, Soil Porosity, Soil Texture, Terrain Elevation |
| Probabilistic Freeze-Thaw Record for the Northern Hemisphere, 2016-2020 | SMAP L-BAND RADIOMETER, AMSR2 | 2016-01-01 to 2020-12-31 | 1 | COMPLETE | COG | Seasonally Frozen Ground, Seasonally Frozen Ground |
| SMAP L4 Global 3-hourly 9 km EASE-Grid Surface and Root Zone Soil Moisture Geophysical Data V007 | NOT APPLICABLE, SMAP L-BAND RADIOMETER | 2015-03-31 to 2025-07-03 | 007 | DEPRECATED | HDF5 | Root Zone Soil Moisture, Surface Soil Moisture |
| SMAP L4 Global 3-hourly 9 km EASE-Grid Surface and Root Zone Soil Moisture Analysis Update V007 | NOT APPLICABLE, SMAP L-BAND RADIOMETER | 2015-03-31 to 2025-07-03 | 007 | DEPRECATED | HDF5 | Root Zone Soil Moisture, Surface Soil Moisture |
| SMAP L4 Global Daily 9 km EASE-Grid Carbon Net Ecosystem Exchange V007 | MODIS, NOT APPLICABLE, SMAP L-BAND RADIOMETER, VIIRS | 2015-03-31 to 2025-06-25 | 007 | DEPRECATED | HDF5 | Gross Primary Production (gpp), Heterotrophic Respiration (rh), NET ECOSYSTEM CO2 EXCHANGE (NEE), Soil Organic Carbon (SOC) |
| SMAP L4 Global 9 km EASE-Grid Surface and Root Zone Soil Moisture Land Model Constants V007 | NOT APPLICABLE, SMAP L-BAND RADIOMETER | 2015-03-31 to 2021-01-01 | 007 | DEPRECATED | HDF5 | Soil Classification, Soil Depth, Soil Porosity, Soil Texture, Terrain Elevation |
| Multi-Mission Optimally Interpolated Sea Surface Salinity Global Monthly Dataset V1 | SMAP L-BAND RADIOMETER, AQUARIUS_SCATTEROMETER | 2011-09-01 | 1.0 | COMPLETE | netCDF-4 | Salinity, Ocean Surface Salinity |
| Multi-Mission Optimally Interpolated Sea Surface Salinity Global Monthly Dataset V2 | SMAP L-BAND RADIOMETER, AQUARIUS_SCATTEROMETER | 2011-08-01 | 2.0 | COMPLETE | netCDF-4 | Salinity, Ocean Surface Salinity |
| Multi-Mission Optimally Interpolated Sea Surface Salinity Global Dataset V1 | SMAP L-BAND RADIOMETER, AQUARIUS_SCATTEROMETER | 2011-08-24 | 1.0 | COMPLETE | netCDF-4 | Salinity |
| Multi-Mission Optimally Interpolated Sea Surface Salinity Global Dataset V2 | SMAP L-BAND RADIOMETER, AQUARIUS_SCATTEROMETER | 2011-08-24 | 2.0 | COMPLETE | netCDF-4 | Salinity |
| SMAP_L1A_RADAR_RECEIVE_ONLY_V002 | SAR | 2015-07-07 to 2016-04-21 | 2 | COMPLETE | ORBITAL CHARACTERISTICS, RADAR IMAGERY, SIGMA NAUGHT | |
| SMAP_L1A_RADAR_RECEIVE_ONLY_QA_V002 | SAR | 2015-07-07 to 2016-04-21 | 2 | COMPLETE | ORBITAL CHARACTERISTICS, RADAR IMAGERY, SIGMA NAUGHT | |
| SMAP_L1A_RADAR_RECEIVE_ONLY_METADATA_V002 | SAR | 2015-07-07 to 2016-04-21 | 2 | COMPLETE | ORBITAL CHARACTERISTICS, RADAR IMAGERY, SIGMA NAUGHT | |
| SMAP_L1A_RADAR_RECEIVE_ONLY_QA_V001 | SAR | 2015-02-12 to 2015-10-26 | 1 | COMPLETE | ORBITAL CHARACTERISTICS, RADAR IMAGERY, SIGMA NAUGHT | |
| SMAP_L1A_RADAR_RECEIVE_ONLY_V001 | SAR | 2015-02-12 to 2015-10-26 | 1 | COMPLETE | ORBITAL CHARACTERISTICS, RADAR IMAGERY, SIGMA NAUGHT | |
| SMAP_L1A_RADAR_RECEIVE_ONLY_METADATA_V001 | SAR | 2015-02-12 to 2019-02-03 | 1 | COMPLETE | ORBITAL CHARACTERISTICS, RADAR IMAGERY, SIGMA NAUGHT | |
| SMAP L4 Global Daily 9 km EASE-Grid Carbon Net Ecosystem Exchange V005 | MODIS, NOT APPLICABLE, SMAP L-BAND RADIOMETER, VIIRS | 2015-03-31 to 2021-12-02 | 005 | DEPRECATED | HDF5 | Soil Organic Carbon (SOC) |
| SMAP L4 Global 9 km EASE-Grid Surface and Root Zone Soil Moisture Land Model Constants V005 | NOT APPLICABLE, SMAP L-BAND RADIOMETER | 2015-03-31 to 2021-01-01 | 005 | DEPRECATED | HDF5 | Terrain Elevation |
| SMAP L4 Global 3-hourly 9 km EASE-Grid Surface and Root Zone Soil Moisture Geophysical Data V005 | NOT APPLICABLE, SMAP L-BAND RADIOMETER | 2015-03-31 to 2021-12-06 | 005 | DEPRECATED | HDF5 | Surface Soil Moisture |
| Tool Sort descending | 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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