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Description

This Western United States snow reanalysis data set contains daily estimates of posterior snow water equivalent (SWE), fractional snow-covered area (fSCA) and snow depth (SD) at 16 arc-second (~500 m) resolution from water years 1985 to 2021. This data set was developed to be compared to SnowEx data sets but its utility reaches beyond that since its spatial and temporal bounds extend over the entire Western U.S. and over several decades.

Product Summary

Platforms
LANDSAT-5 ,
LANDSAT-7 ,
LANDSAT-8
Instruments
TM ,
ETM+ ,
OLI
Spatial Extent

N: 49 S: 31 E: -102 W: -125

Spatial Resolution
0.004444 Decimal Degrees x 0.004444 Decimal Degrees
Geographic Region
UNITED STATES OF AMERICA
Coordinate System
CARTESIAN
Granule Spatial Representation
CARTESIAN
Temporal Extent
1984-10-01 to 2021-09-30
Concept ID
C3273595478-NSIDC_CPRD
Data State
COMPLETE
Number of Files/Granules
27084
Processing Level
4
Science Keywords
Snow Depth ,
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

Fang, Y., Liu, Y., & Margulis, S. (2022). Western United States UCLA Daily Snow Reanalysis, Version 1 [Data set]. NASA National Snow and Ice Data Center Distributed Active Archive Center. https://doi.org/10.5067/PP7T2GBI52I2 Date Accessed: 2025-12-14

Documents

USER'S GUIDE

GENERAL DOCUMENTATION