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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 | Data State | Data Format | Related Topics |
|---|---|---|---|---|---|---|
| SMAP_L1A_RADAR_METADATA_V002 | SAR | 2015-02-12 to 2021-11-04 | 2 | ACTIVE | ORBITAL CHARACTERISTICS, ORBITAL CHARACTERISTICS, RADAR IMAGERY, RADAR IMAGERY, SIGMA NAUGHT | |
| SMAP Level 1A Radar Telemetry Product (Version 1) | SAR | 2015-02-12 to 2021-11-04 | 1 | COMPLETE | Soil Moisture/Water Content, ORBITAL CHARACTERISTICS, RADAR IMAGERY, SIGMA NAUGHT | |
| SMAP_L1A_RADAR_QA_V002 | SAR | 2015-02-12 to 2021-11-04 | 2 | ACTIVE | ORBITAL CHARACTERISTICS, ORBITAL CHARACTERISTICS, RADAR IMAGERY, RADAR IMAGERY, SIGMA NAUGHT | |
| 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 Level 1A Radar Telemetry Product (Version 2) | SAR | 2015-02-12 to 2021-11-04 | 2 | COMPLETE | ORBITAL CHARACTERISTICS, ORBITAL CHARACTERISTICS, RADAR IMAGERY, RADAR IMAGERY, SIGMA NAUGHT | |
| SMAP_L1A_RADAR_METADATA_V001 | SAR | 2015-02-12 to 2021-11-04 | 1 | ACTIVE | Soil Moisture/Water Content, ORBITAL CHARACTERISTICS, RADAR IMAGERY, SIGMA NAUGHT | |
| 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 |
| Soil Moisture Active Passive (SMAP) L1-L3 Ancillary Satellite Data V001 | NOT APPLICABLE | 2015-01-31 to Present | 1 | ACTIVE | Binary | Attitude Characteristics, ORBITAL CHARACTERISTICS |
| SMAP L1A Radiometer Time-Ordered Parsed Telemetry V002 | SMAP L-BAND RADIOMETER | 2015-03-31 to Present | 002 | ACTIVE | HDF5 | Sensor Counts |
| Near Real-time SMAP L2 Radiometer Half-Orbit 36 km EASE-Grid Soil Moisture V107 | SMAP L-BAND RADIOMETER | 2025-06-26 to Present | 107 | ACTIVE | HDF5 | Brightness Temperature, Surface Soil Moisture |
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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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