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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 Level 1B Low Resolution Radar Sigma Naught Time Order Product (Version 2) SAR 2015-02-12 to 2015-07-07 2 COMPLETE ORBITAL CHARACTERISTICS, ORBITAL CHARACTERISTICS, RADAR IMAGERY, RADAR IMAGERY, SIGMA NAUGHT, SIGMA NAUGHT
SMAP Level 1B Low Resolution Radar Sigma Naught Time Order Product (Version 3) SAR 2015-02-12 to 2025-01-08 3 COMPLETE ORBITAL CHARACTERISTICS, RADAR IMAGERY, SIGMA NAUGHT
SMAP Level 1C High Resolution Radar Sigma Naught Swath Grid Product (Version 1) SAR 2015-02-12 to 2015-07-07 1 COMPLETE Soil Moisture/Water Content, ORBITAL CHARACTERISTICS, RADAR IMAGERY, SIGMA NAUGHT
SMAP Level 1C High Resolution Radar Sigma Naught Swath Grid Product (Version 2) SAR 2015-02-12 to 2015-07-07 2 COMPLETE ORBITAL CHARACTERISTICS, ORBITAL CHARACTERISTICS, RADAR IMAGERY, RADAR IMAGERY, SIGMA NAUGHT, SIGMA NAUGHT
SMAP Level 1C High Resolution Radar Sigma Naught Swath Grid Product (Version 3) SAR 2015-02-12 to 2015-07-08 3 COMPLETE 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
SMAP Radiometer Twice-Daily rSIR-Enhanced EASE-Grid 2.0 Brightness Temperatures V001 SMAP L-BAND RADIOMETER 2015-03-31 to 2019-04-06 1 DEPRECATED netCDF-4 Brightness Temperature
SMAP Radiometer Twice-Daily rSIR-Enhanced EASE-Grid 2.0 Brightness Temperatures V002 SMAP L-BAND RADIOMETER 2015-03-31 to 2022-12-31 2 COMPLETE netCDF-4 Brightness Temperature
SMAP Radiometer Twice-Daily rSIR-Enhanced EASE-Grid 2.0 Brightness Temperatures V003 SMAP L-BAND RADIOMETER 2015-03-31 to Present 3 ACTIVE netCDF-4 Brightness Temperature
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-Derived 1-km Downscaled Surface Soil Moisture Product V001 SMAP L-BAND RADIOMETER 2015-04-01 to 2024-06-29 1 COMPLETE GeoTIFF Surface Soil Moisture
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 COMPLETE ASCII Soil Moisture/Water Content, Soil Temperature
SMAP_L1A_RADAR_METADATA_V001 SAR 2015-02-12 to 2015-07-07 1 COMPLETE Soil Moisture/Water Content, ORBITAL CHARACTERISTICS, RADAR IMAGERY, SIGMA NAUGHT
SMAP_L1A_RADAR_METADATA_V002 SAR 2015-02-12 to 2015-07-07 2 COMPLETE ORBITAL CHARACTERISTICS, ORBITAL CHARACTERISTICS, RADAR IMAGERY, RADAR IMAGERY, SIGMA NAUGHT, SIGMA NAUGHT
SMAP_L1A_RADAR_QA_V001 SAR 2015-02-12 to 2015-07-07 1 COMPLETE Soil Moisture/Water Content, ORBITAL CHARACTERISTICS, RADAR IMAGERY, SIGMA NAUGHT
SMAP_L1A_RADAR_QA_V002 SAR 2015-02-12 to 2015-07-07 2 COMPLETE ORBITAL CHARACTERISTICS, ORBITAL CHARACTERISTICS, RADAR IMAGERY, RADAR IMAGERY, SIGMA NAUGHT, 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_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_METADATA_V003 SAR 2015-02-12 to 2026-05-30 3 ACTIVE 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_QA_V002 SAR 2015-07-07 to 2016-04-21 2 COMPLETE ORBITAL CHARACTERISTICS, RADAR IMAGERY, SIGMA NAUGHT
SMAP_L1A_RADAR_RECEIVE_ONLY_QA_V003 SAR 2015-02-12 to 2026-05-30 3 ACTIVE 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_V002 SAR 2015-07-07 to 2016-04-21 2 COMPLETE ORBITAL CHARACTERISTICS, RADAR IMAGERY, SIGMA NAUGHT
SMAP_L1A_RADAR_RECEIVE_ONLY_V003 SAR 2015-02-12 to 2026-05-30 3 ACTIVE ORBITAL CHARACTERISTICS, RADAR IMAGERY, SIGMA NAUGHT
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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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