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Description

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.

Version Description

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

Product Summary

Platforms
SMAP
Instruments
SMAP L-BAND RADIOMETER
Spatial Extent

N: 85.044 S: -85.044 E: 180 W: -180

Spatial Resolution
36 Kilometers x 36 Kilometers
Spatial Reference System(s)
WGS 84 / NSIDC EASE-Grid 2.0 Global (EPSG:6933)
Location
GLOBAL LAND
Coordinate System
CARTESIAN
Granule Spatial Representation
GEODETIC
Temporal Extent
2015-03-31 to Present
Temporal Resolution
49 Minute
Concept ID
C2938663609-NSIDC_CPRD
Data State
ACTIVE
Number of Files/Granules
119666
Processing Level
2
Published
Science Keywords
Brightness Temperature ,
Surface Soil Moisture

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Publications Citing This Dataset

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Title Authors Year Referenced Datasets
Next-generation Metop ASCAT surface soil moisture datasets from EUMETSAT H SAF
  • Hahn, Sebastian, Melzer, Thomas, Wagner, Wolfgang
A review of forward modelling and retrieval approaches for forest soil
  • Colliander, Andreas, Schwank, Mike, Zhou, Yiwen, Kurum, Mehmet, Vittucci, Cristina, Tsang, Leung, Roy, Alex, Berg, Aaron
The importance of scale in the definition of uncertainties: how do we best communicate this to data users?
  • Bulgin, Claire E., Green, Paul, Gruber, Alexander, Macintosh, Claire, Mittaz, Jonathan, Ramsay, Ashley, Rayner, Nick A.
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