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Description

This data set contains Level-2 global soil moisture estimates derived from the NASA Aquarius passive microwave radiometer on the Satélite de Aplicaciones Científicas (SAC-D).

Version Description

Version 3 Aquarius L2 Swath Single Orbit Soil Moisture observations are valid over a wider range of brightness temperatures than Version 2 measurements. Version 3 brightness temperatures are no longer re-calibrated before soil moisture retrievals. The soil moisture model parameters were updated in Version 3. Algorithm parameters are constant over all land cover classes.

Product Summary

Platforms
SAC-D
Instruments
AQUARIUS_RADIOMETER ,
AQUARIUS_SCATTEROMETER
Spatial Extent

N: 90 S: -90 E: 180 W: -180

Location
GLOBAL LAND
Coordinate System
CARTESIAN
Granule Spatial Representation
ORBIT
Temporal Extent
2011-08-25 to 2015-05-01
Temporal Resolution
98 Minute
Concept ID
C4130284421-NSIDC_CPRD
Data State
DEPRECATED
Number of Files/Granules
0
Processing Level
2
Published
Science Keywords
Brightness Temperature ,
Radar Backscatter ,
Soil Moisture/Water Content

Citation

Citation is critically important for dataset documentation and discovery. This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use and Citation Guidance.

Copy Citation

Bindlish, R., & Jackson, T. (2014). Aquarius L2 Swath Single Orbit Soil Moisture, Version 3 [Dataset]. NASA National Snow and Ice Data Center Distributed Active Archive Center. https://doi.org/10.5067/AQUARIUS/AQ2_SM.003 Date Accessed: 2026-09-12

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