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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 L2 Radiometer Half-Orbit 36 km EASE-Grid Soil Moisture V002	002	SMAP	SMAP L-BAND RADAR	2015-03-31 to 2016-04-21	N: 85.044 S: -85.044 E: 180 W: -180	36 Kilometers x 36 Kilometers	HDF5, HDF5
SMAP L2 Radiometer Half-Orbit 36 km EASE-Grid Soil Moisture V003	003	SMAP	SMAP L-BAND RADAR	2015-03-31 to 2016-12-07	N: 85.044 S: -85.044 E: 180 W: -180	36 Kilometers x 36 Kilometers	HDF5, HDF5
SMAP L2 Radiometer Half-Orbit 36 km EASE-Grid Soil Moisture V004	004	SMAP	SMAP L-BAND RADAR	2015-03-31 to 2018-06-04	N: 85.044 S: -85.044 E: 180 W: -180	36 Kilometers x 36 Kilometers	HDF5
SMAP L2 Radiometer Half-Orbit 36 km EASE-Grid Soil Moisture V005	005	SMAP	SMAP L-BAND RADAR	2015-03-31 to 2019-08-13	N: 85.044 S: -85.044 E: 180 W: -180	36 Kilometers x 36 Kilometers	HDF5
SMAP L2 Radiometer Half-Orbit 36 km EASE-Grid Soil Moisture V006	006	SMAP	SMAP L-BAND RADIOMETER	2015-03-31 to 2020-08-27	N: 85.044 S: -85.044 E: 180 W: -180	36 Kilometers x 36 Kilometers	HDF5
SMAP L2 Radiometer Half-Orbit 36 km EASE-Grid Soil Moisture V007	007	SMAP	SMAP L-BAND RADIOMETER	2015-03-31 to 2021-10-28	N: 85.044 S: -85.044 E: 180 W: -180	36 Kilometers x 36 Kilometers	HDF5
SMAP L2 Radiometer Half-Orbit 36 km EASE-Grid Soil Moisture V008	008	SMAP	SMAP L-BAND RADIOMETER	2015-03-31 to 2023-12-04	N: 85.044 S: -85.044 E: 180 W: -180	36 Kilometers x 36 Kilometers	HDF5
SMAP L2 Radiometer Half-Orbit 36 km EASE-Grid Soil Moisture V009	009	SMAP	SMAP L-BAND RADIOMETER	2015-03-31 to Present	N: 85.044 S: -85.044 E: 180 W: -180	36 Kilometers x 36 Kilometers	HDF5
SMAP L3 Radar Global Daily 3 km EASE-Grid Soil Moisture V002	002	SMAP Observatory	SMAP L-BAND RADAR	2015-04-13 to 2015-07-07	N: 85.044 S: -85.044 E: 180 W: -180	3 Kilometers x 3 Kilometers	HDF5, HDF5
SMAP L3 Radar Global Daily 3 km EASE-Grid Soil Moisture V003	003	SMAP	SMAP L-BAND RADAR	2015-04-13 to 2015-07-07	N: 85.044 S: -85.044 E: 180 W: -180	3 Kilometers x 3 Kilometers	HDF5
SMAP L3 Radar/Radiometer Global Daily 9 km EASE-Grid Soil Moisture V003	003	SMAP	SMAP L-BAND RADAR, SMAP L-BAND RADIOMETER	2015-04-13 to 2015-07-07	N: 85.044 S: -85.044 E: 180 W: -180	9 Kilometers x 9 Kilometers	HDF5
SMAP L3 Radiometer Global Daily 36 km EASE-Grid Soil Moisture V001	001	SMAP	SMAP L-BAND RADAR	2015-09-10 to 2015-10-24	N: 85.044 S: -85.044 E: 180 W: -180	36 Kilometers x 36 Kilometers	HDF5
SMAP L3 Radiometer Global Daily 36 km EASE-Grid Soil Moisture V002	002	SMAP	SMAP L-BAND RADAR	2015-03-31 to 2016-04-20	N: 85.044 S: -85.044 E: 180 W: -180	36 Kilometers x 36 Kilometers	HDF5, HDF5
SMAP L3 Radiometer Global Daily 36 km EASE-Grid Soil Moisture V003	003	SMAP	SMAP L-BAND RADAR	2015-03-31 to 2016-12-06	N: 85.044 S: -85.044 E: 180 W: -180	36 Kilometers x 36 Kilometers	HDF5, HDF5
SMAP L3 Radiometer Global Daily 36 km EASE-Grid Soil Moisture V004	004	SMAP	SMAP L-BAND RADAR	2015-03-31 to 2018-06-03	N: 85.044 S: -85.044 E: 180 W: -180	36 Kilometers x 36 Kilometers	HDF5
SMAP L3 Radiometer Global Daily 36 km EASE-Grid Soil Moisture V005	005	SMAP	SMAP L-BAND RADIOMETER	2015-03-31 to 2019-08-12	N: 85.044 S: -85.044 E: 180 W: -180	36 Kilometers x 36 Kilometers	HDF5
SMAP L3 Radiometer Global Daily 36 km EASE-Grid Soil Moisture V006	006	SMAP	SMAP L-BAND RADIOMETER	2015-03-31 to 2020-08-27	N: 85.044 S: -85.044 E: 180 W: -180	36 Kilometers x 36 Kilometers	HDF5
SMAP L3 Radiometer Global Daily 36 km EASE-Grid Soil Moisture V007	007	SMAP	SMAP L-BAND RADIOMETER	2015-03-31 to 2021-10-28	N: 85.044 S: -85.044 E: 180 W: -180	36 Kilometers x 36 Kilometers	HDF5
SMAP L3 Radiometer Global Daily 36 km EASE-Grid Soil Moisture V008	008	SMAP	SMAP L-BAND RADIOMETER	2015-03-31 to 2023-12-02	N: 85.044 S: -85.044 E: 180 W: -180	36 Kilometers x 36 Kilometers	HDF5
SMAP L3 Radiometer Global Daily 36 km EASE-Grid Soil Moisture V009	009	SMAP	SMAP L-BAND RADIOMETER	2015-03-31 to Present	N: 85.044 S: -85.044 E: 180 W: -180	36 Kilometers x 36 Kilometers	HDF5
SMAP L4 9 km EASE-Grid Surface and Root Zone Soil Moisture Analysis Update V001	001	SMAP	SMAP L-BAND RADAR	2015-03-31 to 2016-04-22	N: 85.044 S: -85.044 E: 180 W: -180	9 Kilometers x 9 Kilometers	HDF5, HDF5
SMAP L4 9 km EASE-Grid Surface and Root Zone Soil Moisture Analysis Update V002	002	SMAP	SMAP L-BAND RADAR	2015-03-31 to 2017-07-15	N: 85.044 S: -85.044 E: 180 W: -180	9 Kilometers x 9 Kilometers	HDF5, HDF5
SMAP L4 9 km EASE-Grid Surface and Root Zone Soil Moisture Analysis Update 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 Geophysical Data V001	001	SMAP	SMAP L-BAND RADAR	2015-03-31 to 2016-04-22	N: 85.044 S: -85.044 E: 180 W: -180	9 Kilometers x 9 Kilometers	HDF5, HDF5
SMAP L4 9 km EASE-Grid Surface and Root Zone Soil Moisture Geophysical Data V002	002	SMAP	SMAP L-BAND RADAR	2015-03-31 to 2017-07-15	N: 85.044 S: -85.044 E: 180 W: -180	9 Kilometers x 9 Kilometers	HDF5, 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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