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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
| Dataset | Instruments | Temporal Extent | Version Sort ascending | Data State | Data Format | Related Topics |
|---|---|---|---|---|---|---|
| SMAP Radar Twice-Daily SAR and SIR-Enhanced Scatterometer EASE-Grid 2.0 Radar Backscatter V001 | SMAP L-BAND RADAR | 2015-04-13 to 2015-07-12 | 1 | COMPLETE | netCDF-4 | SIGMA NAUGHT |
| 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/CYGNSS EASE-Grid Soil Moisture V001 | DDMI, SMAP L-BAND RADIOMETER | 2017-04-01 to 2023-12-31 | 1 | COMPLETE | HDF5 | Brightness Temperature, Surface Soil Moisture |
| SMAP_L1A_RADAR_QA_V001 | SAR | 2015-02-12 to 2021-11-04 | 1 | ACTIVE | Soil Moisture/Water Content, ORBITAL CHARACTERISTICS, RADAR IMAGERY, SIGMA NAUGHT | |
| SMAP_L1B_SIGMA_NAUGHT_LOW_RES_METADATA_V001 | SAR | 2015-02-12 to 2021-11-04 | 1 | ACTIVE | Soil Moisture/Water Content, ORBITAL CHARACTERISTICS, RADAR IMAGERY, SIGMA NAUGHT | |
| SMAP_L1C_SIGMA_NAUGHT_HIGH_RES_QA_V001 | SAR | 2015-02-12 to 2021-11-04 | 1 | ACTIVE | Soil Moisture/Water Content, ORBITAL CHARACTERISTICS, RADAR IMAGERY, SIGMA NAUGHT | |
| SMAP/SMOS L3 Radiometer 9 km EASE-Grid Soil Moisture V001 | SMAP L-BAND RADIOMETER, SMOS L-BAND RADIOMETER | 2015-05-01 to 2021-12-31 | 1 | COMPLETE | HDF5 | Brightness Temperature, Surface Soil Moisture, Vegetation Optical Depth |
| SMAP_L1A_RADAR_RECEIVE_ONLY_METADATA_V001 | SAR | 2015-02-12 to 2021-05-25 | 1 | ACTIVE | ORBITAL CHARACTERISTICS, RADAR IMAGERY, SIGMA NAUGHT | |
| SMOS-Based SMAP L2 Radiometer Half-Orbit 9 km EASE-Grid Soil Moisture V001 | SMAP L-BAND RADIOMETER, SMOS L-BAND RADIOMETER | 2015-05-01 to 2022-01-01 | 1 | COMPLETE | HDF5 | Brightness Temperature, Surface Soil Moisture, Vegetation Optical Depth |
| SMAP/In Situ Core Validation Site Land Surface Parameters Match-Up Data V001 | SOIL MOISTURE PROBE, SOIL TEMPERATURE PROBE, SMAP L-BAND RADAR, SMAP L-BAND RADIOMETER | 2015-04-01 to 2021-03-31 | 1 | ACTIVE | ASCII | Soil Moisture/Water Content, Soil Temperature |
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SMAP Data Tools
| 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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Frequently Asked Questions
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