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Description

This AMSR-E/AMSR2 Unified Level-3 data set provides daily estimates of snow water equivalent (SWE) at 25 km resolution, derived from brightness temperature measurements acquired by the Advanced Microwave Scanning Radiometer (AMSR) for EOS (AMSR-E) and AMSR2 instruments. SWE data are provided on the azimuthal 25 km Equal-Area Scalable Earth Grid (EASE-Grid) for both the Northern and Southern Hemisphere.

The data were generated from input brightness temperatures which were resampled by the Japan Aerospace Exploration Agency (JAXA) to intercalibrate, or unify, the AMSR-E and AMSR2 missions.

Product Summary

Platforms
Aqua ,
GCOM-W1
Instruments
AMSR-E ,
AMSR2
Spatial Extent

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

Spatial Resolution
25 Kilometers x 25 Kilometers
Geographic Region
GLOBAL LAND
Coordinate System
CARTESIAN
Granule Spatial Representation
GEODETIC
Temporal Extent
2002-06-01 to 2011-10-03 ,
2012-07-02 to 2025-08-31
Concept ID
C3243533456-NSIDC_CPRD
Data State
COMPLETE
Number of Files/Granules
8185
Processing Level
3
Science Keywords
Snow Water Equivalent

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

Tedesco, M., & Jeyaratnam, J. (2019). AMSR-E/AMSR2 Unified L3 Global Daily 25 km EASE-Grid Snow Water Equivalent, Version 1 [Data set]. NASA National Snow and Ice Data Center Distributed Active Archive Center. https://doi.org/10.5067/8AE2ILXB5SM6 Date Accessed: 2025-12-14

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