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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.

Version Description

Initial data release

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
Spatial Reference System(s)
Multiple EPSG codes (see User Guide)
Location
GLOBAL LAND
Coordinate System
CARTESIAN
Granule Spatial Representation
GEODETIC
Temporal Extent
2012-07-02 to 2025-08-31
Temporal Resolution
1 Day
Concept ID
C3243533456-NSIDC_CPRD
Data State
COMPLETE
Number of Files/Granules
8185
Processing Level
3
Published
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: 2026-05-01

Documents

Publications Citing This Dataset

Filters
Title Year Author Topic
Land surface processes relevant to subseasonal-to-seasonal prediction Dirmeyer, Paul A., Ek, Michael B. Snow Water Equivalent
An Effective Geographically Localized Snow Depth Downscaling Approach in Zhang, Cheng, Jiang, Lingmei, Yang, Jianwei Snow Water Equivalent
Deep learning of seasonal peak snow water content of global boreal Kumawat, Divya, Ebtehaj, Ardeshir, Kumar, Sujay, Colliander, Andreas Snow Water Equivalent
using spaceborne lidar for snow depth retrievals: recent findings and utility for hydrologic applications Fair, Zachary, Vuyovich, Carrie, Neumann, Thomas, Pflug, Justin, Shean, David, Enderlin, Ellyn M., Zikan, Karina, Besso, Hannah, Lundquist, Jessica, Deschamps-Berger, Cesar, Treichler, Desiree Snow Water Equivalent, Digital Elevation/Terrain Model (DEM), Snow Depth, VEGETATION HEIGHT, VISIBLE IMAGERY
Overview of the WSF-M Soil Moisture and Snow Water Equivalent Algorithms Galantowicz, John, Liang, Pan, Picton, Jeff, Finan, Robert, Root, Benjamin Snow Water Equivalent
An Overview of Snow Water Equivalent: Methods, Challenges, and Future Taheri, Mercedeh, Mohammadian, Abdolmajid Snow Water Equivalent
Reconstruction of a daily gridded snow water equivalent product for the land region above 45 N based on a ridge regression machine learning approach Shao, Donghang, Li, Hongyi, Wang, Jian, Hao, Xiaohua, Che, Tao, Ji, Wenzheng Snow Water Equivalent
The role of oceanic heat flux in reducing thermodynamic ice growth in Kirillov, Sergei, Dmitrenko, Igor, Babb, David G., Ehn, Jens K., Koldunov, Nikolay, Rysgaard, Sren, Jensen, David, Barber, David G. Brightness Temperature, Sea Ice Concentration, Sea Ice Motion, Snow Depth, Snow Water Equivalent
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