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Soil Moisture/Water Content Data Access and Tools

NASA has soil moisture and water content datasets that help researchers characterize the condition of soil around the world. Access a range of data and data tools such as the Soil Moisture Visualizer, Crop Condition and Soil Moisture Analytics (Crop-CASMA), and AppEEARS to make the most of soil moisture data.

Soil Moisture/Water Content Datasets

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Dataset Sort descending	Version	Platform	Instrument	Temporal Extent	Spatial Extent	Spatial Resolution	Data Format
SMAP L4 9 km EASE-Grid Surface and Root Zone Soil Moisture Geophysical Data V003	003	SMAP	SMAP L-BAND RADAR	2015-03-31 to 2018-06-05	N: 85.044 S: -85.044 E: 180 W: -180	9 Kilometers x 9 Kilometers	HDF5
SMAP L4 9 km EASE-Grid Surface and Root Zone Soil Moisture Land Model Constants V001	001	SMAP	SMAP L-BAND RADAR	2015-03-31 to 2015-10-26	N: 85.044 S: -85.044 E: 180 W: -180	9 Kilometers x 9 Kilometers	HDF5, HDF5
SMAP L4 Global 3-hourly 9 km EASE-Grid Surface and Root Zone Soil Moisture Analysis Update V004	004	SMAP	SMAP L-BAND RADIOMETER	2015-03-31 to 2020-08-27	N: 85.044 S: -85.044 E: 180 W: -180	9 Kilometers x 9 Kilometers	HDF5
SMAP L4 Global 3-hourly 9 km EASE-Grid Surface and Root Zone Soil Moisture Analysis Update V005	005	GEOS-5, SMAP	NOT APPLICABLE, SMAP L-BAND RADIOMETER	2015-03-31 to 2021-12-06	N: 85.044 S: -85.044 E: 180 W: -180	9 Kilometers x 9 Kilometers	HDF5
SMAP L4 Global 3-hourly 9 km EASE-Grid Surface and Root Zone Soil Moisture Analysis Update V006	006	GEOS-5, SMAP	NOT APPLICABLE, SMAP L-BAND RADIOMETER	2015-03-31 to 2022-11-14	N: 85.044 S: -85.044 E: 180 W: -180	9 Kilometers x 9 Kilometers	HDF5
SMAP L4 Global 3-hourly 9 km EASE-Grid Surface and Root Zone Soil Moisture Analysis Update V007	007	GEOS-5, SMAP	NOT APPLICABLE, SMAP L-BAND RADIOMETER	2015-03-31 to 2025-07-03	N: 85.044 S: -85.044 E: 180 W: -180	9 Kilometers x 9 Kilometers	HDF5
SMAP L4 Global 3-hourly 9 km EASE-Grid Surface and Root Zone Soil Moisture Analysis Update V008	008	GEOS-5, SMAP	NOT APPLICABLE, SMAP L-BAND RADIOMETER	2015-03-31 to Present	N: 85.044 S: -85.044 E: 180 W: -180	9 Kilometers x 9 Kilometers	HDF5
SMAP L4 Global 3-hourly 9 km EASE-Grid Surface and Root Zone Soil Moisture Geophysical Data V004	004	SMAP	SMAP L-BAND RADIOMETER	2015-03-31 to 2020-08-27	N: 85.044 S: -85.044 E: 180 W: -180	9 Kilometers x 9 Kilometers	HDF5
SMAP L4 Global 3-hourly 9 km EASE-Grid Surface and Root Zone Soil Moisture Geophysical Data V005	005	GEOS-5, SMAP	NOT APPLICABLE, SMAP L-BAND RADIOMETER	2015-03-31 to 2021-12-06	N: 85.044 S: -85.044 E: 180 W: -180	9 Kilometers x 9 Kilometers	HDF5
SMAP L4 Global 3-hourly 9 km EASE-Grid Surface and Root Zone Soil Moisture Geophysical Data V006	006	GEOS-5, SMAP	NOT APPLICABLE, SMAP L-BAND RADIOMETER	2015-03-31 to 2022-11-14	N: 85.044 S: -85.044 E: 180 W: -180	9 Kilometers x 9 Kilometers	HDF5
SMAP L4 Global 3-hourly 9 km EASE-Grid Surface and Root Zone Soil Moisture Geophysical Data V007	007	GEOS-5, SMAP	NOT APPLICABLE, SMAP L-BAND RADIOMETER	2015-03-31 to 2025-07-03	N: 85.044 S: -85.044 E: 180 W: -180	9 Kilometers x 9 Kilometers	HDF5
SMAP L4 Global 3-hourly 9 km EASE-Grid Surface and Root Zone Soil Moisture Geophysical Data V008	008	GEOS-5, SMAP	NOT APPLICABLE, SMAP L-BAND RADIOMETER	2015-03-31 to Present	N: 85.044 S: -85.044 E: 180 W: -180	9 Kilometers x 9 Kilometers	HDF5
SMAP Level 1A Radar Telemetry Product (Version 1)	1	SMAP	SAR	2015-02-12 to 2021-11-04	N: 90 S: -90 E: 180 W: -180
SMAP Level 1B Low Resolution Radar Sigma Naught Time Order Product (Version 1)	1	SMAP	SAR	2015-02-12 to 2015-07-07	N: 90 S: -90 E: 180 W: -180
SMAP Level 1C High Resolution Radar Sigma Naught Swath Grid Product (Version 1)	1	SMAP	SAR	2015-02-12 to 2015-07-07	N: 90 S: -90 E: 180 W: -180
SMAP/CYGNSS EASE-Grid Soil Moisture V001	1	CYGNSS, SMAP	DDMI, SMAP L-BAND RADIOMETER	2017-04-01 to 2023-12-31	N: 40 S: -40 E: 180 W: -180	3 Kilometers x 3 Kilometers	HDF5
SMAP-Derived 1-km Downscaled Surface Soil Moisture Product V001	1	SMAP	SMAP L-BAND RADIOMETER	2015-04-01 to 2024-06-29	N: 86 S: -86 E: 180 W: -180	1 Kilometers x 1 Kilometers	GeoTIFF
SMAP/In Situ Core Validation Site Land Surface Parameters Match-Up Data V001	1	GROUND STATIONS, SMAP	SOIL MOISTURE PROBE, SOIL TEMPERATURE PROBE, SMAP L-BAND RADAR, SMAP L-BAND RADIOMETER	2015-04-01 to 2021-03-31	N: 85.044 S: -85.044 E: 180 W: -180		ASCII
SMAP_L1A_RADAR_METADATA_V001	1	SMAP	SAR	2015-02-12 to 2015-07-07	N: 90 S: -90 E: 180 W: -180
SMAP_L1A_RADAR_QA_V001	1	SMAP	SAR	2015-02-12 to 2015-07-07	N: 90 S: -90 E: 180 W: -180
SMAP_L1B_SIGMA_NAUGHT_LOW_RES_METADATA_V001	1	SMAP	SAR	2015-02-12 to 2015-07-07	N: 90 S: -90 E: 180 W: -180
SMAP_L1B_SIGMA_NAUGHT_LOW_RES_QA_V001	1	SMAP	SAR	2015-02-12 to 2015-07-07	N: 90 S: -90 E: 180 W: -180
SMAP_L1C_SIGMA_NAUGHT_HIGH_RES_METADATA_V001	1	SMAP	SAR	2015-02-12 to 2015-07-07	N: 90 S: -90 E: 180 W: -180
SMAP_L1C_SIGMA_NAUGHT_HIGH_RES_QA_V001	1	SMAP	SAR	2015-02-12 to 2015-07-07	N: 90 S: -90 E: 180 W: -180
SMAP/Sentinel-1 L2 Radiometer/Radar 30-Second Scene 3 km EASE-Grid Soil Moisture V001	1	Sentinel-1A, Sentinel-1B, SMAP Observatory	SAR, C-SAR, SMAP L-BAND RADIOMETER	2015-04-01 to 2018-06-03	N: 60 S: -60 E: 180 W: -180	3 Kilometers x 3 Kilometers	HDF5

Featured Observation Method: SMAP

The Soil Moisture Active-Passive (SMAP) platform is a satellite that measures the surface moisture and freeze-thaw state of soil around the world approximately every three days. SMAP data contributes to understanding regional water cycles, ecosystem productivity, and natural processes involving water, energy, and carbon. SMAP's high-resolution data are helpful for weather, flood, and drought forecasting, and predicting agricultural productivity.

16 New SMAP Products Now Available

GIBS now has Soil Moisture Active Passive (SMAP) layers available for soil moisture and temperature, snow mass, heterotrophic respiration, and more.

Earthdata graphic identifier on top of satellite image of Earth

Don't Pass the Salt! NASA's Salinity Mission Continues with SMAP

This webinar will compare sea surface salinity data collected by the Aquarius and SMAP missions. We will showcase data visualization and data access tools available through NASA's Physical Oceanography Distributed Active Archive Center.

SMAP's rotating golden antenna functions like a satellite dish to focus radio waves from Earth's surface into a collector on the spacecraft

Rounding up Data with a Golden Lasso: Getting Soil Moisture Data from SMAP to DAAC

NASA's SMAP team turns raw satellite data into more than a dozen data products for data users around the world.

9 MIN READ

ASF Providing SMAP Ground Support, Data Distribution

Feature article describing NASA's SMAP mission and the roles that ASF DAAC will play with distributing the SAR data.

Soil Moisture/Water Content Data Tools

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Items

Tool Sort descending	Description	Services
Vertex	Vertex is a graphical search interface for finding synthetic aperture radar (SAR) data.	Search and Discovery, Access, Downloading, Processing, Subsetting

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