What data subsetting, reformatting, and reprojection services are available for SMAP data?

The following table describes the subsetting and reformatting services that are currently available for L2-4 SMAP data. 

Short Name

Title

Parameter Subsetting

Spatial Subsetting

Shapefile* Subsetting

GeoTIFF Reformatting

Geographic Reprojection

SPL2SMA

SMAP L2 Radar Half-Orbit 3 km EASE-Grid Soil Moisture

 

SPL2SMP

SMAP L2 Radiometer Half-Orbit 36 km EASE-Grid Soil Moisture

 

SPL2SMP_E

SMAP Enhanced L2 Radiometer Half-Orbit 9 km EASE-Grid Soil Moisture (NOTE: services are currently only available for the global variables, not the polar variables)

 

SPL2SMAP

SMAP L2 Radar/Radiometer Half-Orbit 9 km EASE-Grid Soil Moisture

 

SPL2SMAP_S

SMAP/Sentinel-1 L2 Radiometer/Radar 30-Second Scene 3 km EASE Grid Soil Moisture

 

SPL3SMA

SMAP L3 Radar Global Daily 3 km EASE-Grid Soil Moisture

SPL3SMP

SMAP L3 Radiometer Global Daily 36 km EASE-Grid Soil Moisture

SPL3SMP_E

SMAP Enhanced L3 Radiometer Global Daily 9 km EASE-Grid Soil Moisture

SPL3SMAP

SMAP L3 Radar/Radiometer Global Daily 9 km EASE-Grid Soil Moisture

SPL3FTA

SMAP L3 Radar Northern Hemisphere Daily 3 km EASE-Grid Freeze/Thaw State

SPL3FTP

SMAP L3 Radiometer Global and Northern Hemisphere Daily 36 km EASE-Grid Freeze/Thaw State

SPL3FTP_E

SMAP Enhanced L3 Radiometer Global and Northern Hemisphere Daily 9 km EASE-Grid Freeze/Thaw State 

SPL4SMAU

SMAP L4 Global 3-hourly 9 km Surface and Rootzone Soil Moisture Analysis Update

SPL4SMGP

SMAP L4 Global 3-hourly 9 km Surface and Rootzone Soil Moisture Geophysical Data

SPL4SMLM

SMAP L4 Global 9 km Surface and Rootzone Soil Moisture Land Model Constants

SPL4CMDL

SMAP L4 Global Daily 9 km Carbon Net Ecosystem Exchange

* Shapefile subsetting:

Includes shapefile, KML/KMZ, and GeoJSON. For best results, use a WGS84 Geographic Coordinate System (EPSG: 4326) and include both the latitude and longitude parameters in the order. 

Last Updated October 2025