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

The following table describes the data subsetting, reformatting, and reprojection services that are currently available for SMAP data via the NASA Earthdata Searcha Data Subscription, and Programmatic Access.

 

Short name

Title

Subsetting

Reformatting

Reprojection 
(See details below the table)

 

 

Parameter

Spatial

Shapefile (See details below the table)

GeoTIFF

ASCII

netCDF-4

KML

HDF-EOS5

 

SPL1AP

SMAP L1A Radiometer Time-Ordered Parsed Telemetry

         

SPL1BTB

SMAP L1B Radiometer Half-Orbit Time-Ordered Brightness Temperatures

         

SPL1CTB

SMAP L1C Radiometer Half-Orbit 36 km EASE-Grid Brightness Temperatures

       √

**

SPL1CTB_E

SMAP Enhanced L1C Radiometer Half-Orbit 9 km EASE-Grid Brightness Temperatures

      √

 √**

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

        √

√***

*The following projections are offered:

  • Geographic
  • UTM
  • Polar Stereographic (except for SPL2SMAP_S & SPL1CTB)

**Reprojection services (for Level-1 and -2 data sets) specifically apply to the following data formats:

  • GeoTIFF
  • net-CDF-4 
  • HDF-EOS5

*** Reprojection services (Level-3 and -4 data sets and SPL2SMAP_S) specifically apply to the following data formats:

  • HDF5 (native data format)
  • GeoTIFF
  • net-CDF-4
  • HDF-EOS5 

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. This service is not available for data subscriptions. 

Last Updated Feb 2022