SMAP L2 Radiometer Half-Orbit 36 km EASE-Grid Soil Moisture, Version 9
Data set id:
SPL2SMP
DOI: 10.5067/K7Y2D8QQVZ4L
This is the most recent version of these data.
Version Summary
Changes to this version include:
• An improved processing methodology was applied to the input Level-1C radiometer brightness temperatures.
• The data algorithms, structure, content, or processor code are otherwise unchanged from the previous version.

For the full major and minor version history, go to https://nsidc.org/data/smap/version-history

Overview

This Level-2 (L2) soil moisture product provides estimates of global land surface conditions retrieved by the Soil Moisture Active Passive (SMAP) passive microwave radiometer during 6:00 a.m. descending and 6:00 p.m. ascending half-orbit passes. SMAP L-band brightness temperatures are resampled to an Earth-fixed, global, cylindrical 36 km Equal-Area Scalable Earth Grid, Version 2.0 (EASE-Grid 2.0) [and made available as the SPL1CTB product], and the gridded brightness temperatures are then used to derive gridded soil moisture data.
Parameter(s):
BRIGHTNESS TEMPERATURE
SURFACE SOIL MOISTURE
Platform(s):
SMAP
Sensor(s):
SMAP L-BAND RADIOMETER
Data Format(s):
HDF5
Temporal Coverage:
  • 31 March 2015 to present
Temporal Resolution:
  • 49 minute
Spatial Resolution:
  • 36 km
  • 36 km
Spatial Reference System(s):
  • WGS 84 / NSIDC EASE-Grid 2.0 Global
    EPSG:6933
Spatial Coverage:
  • Northern latitude
    85.044
    Southern latitude
    -85.044
    Eastern longitude
    180
    Western longitude
    -180
Blue outlined yellow areas on the map below indicate the spatial coverage for this data set.

Data Access & Tools

A free NASA Earthdata Login account is required to access these data. Learn More