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    • GEOSAT Radar Altimeter DEM Atlas of Antarctica North of 72.1 degrees South, Version 1

    Metadata Updated: December 6, 2023

    The Antarctic atlas consists of 28 digital elevation maps which cover all of Antarctica north of 72.1 degrees south at a resolution of three kilometers. Each map contains surface elevations and coordinates for one atlas page covering 16 degrees of longitude. Data were acquired by the Geodetic Satellite (GEOSAT) Geodetic Mission (GM) from March 1985 through September 1986 and are available in both Universal Transverse Mercator (UTM) coordinates, and in latitude and longitude coordinates.

    Data were mapped using the UTM projection in atlas form to decrease the distortion that usually occurs at the poles. Many features of the Antarctic Ice Sheet are shown in more detail than in previous digital elevation models, especially along the margin of the East Antarctic Ice Sheet. A geostatistical mapping technique (Herzfeld et al. 1993) improved the accuracy of surface elevations compared to previous GEOSAT elevation data sets. This atlas will facilitate the monitoring of changes in surface elevation that could indicate mass changes in the Antarctic Ice Sheet.

    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 November 12, 2020
    Metadata Updated Date December 6, 2023

    Metadata Source

    Harvested from NASA Data.json

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date November 12, 2020
    Metadata Updated Date December 6, 2023
    Publisher NASA NSIDC DAAC
    Maintainer
    Identifier C1386207005-NSIDCV0
    Data First Published 1985-04-01
    Language en-US
    Data Last Modified 1986-09-30
    Category geospatial
    Public Access Level public
    Bureau Code 026:00
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Metadata Catalog ID https://data.nasa.gov/data.json
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Citation GEOSAT Radar Altimeter DEM Atlas of Antarctica North of 72.1 degrees South, Version 1. Version 1. Archived by National Aeronautics and Space Administration, U.S. Government, NASA National Snow and Ice Data Center Distributed Active Archive Center. https://doi.org/10.5067/8SH7MO0Z9589.
    Harvest Object Id 20562340-ae84-4a65-98e5-7ca140015d9f
    Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
    Harvest Source Title NASA Data.json
    Homepage URL https://doi.org/10.5067/8SH7MO0Z9589
    Metadata Type geospatial
    Old Spatial -180.0 -72.0 180.0 -65.0
    Program Code 026:001
    Source Datajson Identifier True
    Source Hash bd7f4a4e9e9d4498324c29e182dbc0b0c4eff01924682d3bef272416bcaad54f
    Source Schema Version 1.1
    Spatial
    Temporal 1985-04-01T00:00:00Z/1986-09-30T23:59:59.999Z

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