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    • MEaSUREs Grounding Zone of the Antarctic Ice Sheet V001

    Metadata Updated: August 22, 2025

    This data set provides a comprehensive map for the Antarctic Ice Sheet of the short-term zone of migration of the grounding line (i.e., the transition boundary between grounded ice and ice floating in the ocean waters) over a given period due to changes in oceanic tide. This short-term variation in the grounding line is referred to in this data set as the “grounding zone.” The grounding zone is presented as polylines in an ESRI shapefile indicating the upstream and downstream bound of the variation in the grounding line for a given year. The data is based on an automatic delineation of thousands of grounding lines using Sentinel-1 A/B interferometric synthetic aperture radar (InSAR) data with a machine learning algorithm and supplemented by grounding lines from COSMO SkyMed InSAR data.

    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 May 30, 2023
    Metadata Updated Date August 22, 2025

    Metadata Source

    Harvested from NASA Data.json

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date May 30, 2023
    Metadata Updated Date August 22, 2025
    Publisher NASA NSIDC DAAC
    Maintainer
    Identifier C2592873433-NSIDC_ECS
    Data First Published 2018-01-01
    Language en-US
    Data Last Modified 2025-07-17
    Category geospatial
    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 a65500bb-83a5-40a6-9c53-3853c3d0a966
    Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
    Harvest Source Title NASA Data.json
    Homepage URL https://doi.org/10.5067/HGLT8XB480E4
    Metadata Type geospatial
    Old Spatial -180.0 -90.0 180.0 -60.0
    Program Code 026:001
    Source Datajson Identifier True
    Source Hash 8d84ff238e1a5d6f0c660b7e59cfe8d6884355d4ca702f8a362aa7a1ae8eecbb
    Source Schema Version 1.1
    Spatial
    Temporal 2018-01-01T00:00:00Z/2020-12-31T23:59:59.999Z

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