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    • Daily Snow Depth and SWE from GPS Signal-to-Noise Ratios, Version 1

    Metadata Updated: August 29, 2025

    This data set consists of daily snow depths and snow-water equivalents (SWEs) estimated from GPS signal-to-noise ratios (SNRs). Snow depth is determined by calculating the relative change of the effective multipath reflector height (i.e. the snow surface) with respect to the snow free surface. SWEs are determined using GPS snow depths and, when available, density observations from nearby SNOpack TELemetry (SNOTEL) stations. When a nearby SNOTEL station is not available, density is estimated using GPS snow depth and climate classes, which account for variables such as location and time of the year.

    Access & Use Information

    Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

    Downloads & Resources

    Dates

    Metadata Created Date June 18, 2025
    Metadata Updated Date August 29, 2025

    Metadata Source

    Harvested from NASA Data.json

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date June 18, 2025
    Metadata Updated Date August 29, 2025
    Publisher NASA NSIDC DAAC
    Maintainer
    Identifier 10.5067/Z02Y1HGNFXCH
    Data Last Modified 2025-08-27
    Category Earth Science
    Public Access Level public
    Bureau Code 026:00
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Harvest Object Id 4f2358b8-255d-49c6-b9f5-a04f87c9a07a
    Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
    Harvest Source Title NASA Data.json
    Homepage URL https://daacdata.apps.nsidc.org/pub/DATASETS/nsidc0722_sd_swe_gps_v01/
    Old Spatial "CARTESIAN",{"WestBoundingCoordinate":-180.0,"NorthBoundingCoordinate":83.0,"EastBoundingCoordinate":-60.0,"SouthBoundingCoordinate":32.0},{"WestBoundingCoordinate":18.36,"NorthBoundingCoordinate":57.67,"EastBoundingCoordinate":18.37,"SouthBoundingCoordinate":57.66}
    Program Code 026:000
    Source Datajson Identifier True
    Source Hash 35907ffec9652fa7e0c0cf55e15f0694cf483e1c37f2a4033a65cff1db6af88e
    Source Schema Version 1.1
    Spatial
    Temporal 2002-09-01/2002-09-01

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