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    • Multisensor Analyzed Sea Ice Extent - Northern Hemisphere (MASIE-NH), Version 1

    Metadata Updated: April 10, 2026

    The Multisensor Analyzed Sea Ice Extent - Northern Hemisphere (MASIE-NH) products provide measurements of daily sea ice extent and sea ice edge boundary for the Northern Hemisphere and 16 Arctic regions in a polar stereographic projection at both 1 km and 4 km grid cell sizes. MASIE products include an ASCII text file of sea ice extent values in square km for each Arctic region, time series plots, and image files that visually show where the sea ice is. Note: MASIE may look like several other sea ice products distributed at NSIDC and elsewhere, but its source data from the U.S. National Ice Center (USNIC) and intended uses are different. If intended and appropriate uses of the data are not clear after reading the documentation, please contact NSIDC User Services.

    Access & Use Information

    Public: This dataset is intended for public access and use. License: See this page for license information.

    Downloads & Resources

    Dates

    Metadata Created Date April 11, 2025
    Metadata Updated Date April 10, 2026

    Metadata Source

    Harvested from NASA Data.json

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date April 11, 2025
    Metadata Updated Date April 10, 2026
    Publisher NSIDC;NOAA
    Maintainer
    Identifier 10.7265/N5GT5K3K
    Data Last Modified 2026-04-06
    Category Earth Science
    Category Tag 16E15F51 D96E 4051 9124 75665Abdc6Ff "Arctic","Arctic Ocean, Sea Ice and Coasts","Arctic Peoples and Ecosystems"
    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 b7222ace-37ed-4d92-9293-99b569d63cf4
    Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
    Harvest Source Title NASA Data.json
    License https://www.usa.gov/government-works
    Old Spatial "CARTESIAN",{"WestBoundingCoordinate":-180.0,"NorthBoundingCoordinate":90.0,"EastBoundingCoordinate":180.0,"SouthBoundingCoordinate":0.0}
    Program Code 026:000
    Source Datajson Identifier True
    Source Hash aee487ec90821a69f4cb61b8cc73512e54cc97fb577280f2e61fe04ce9603973
    Source Schema Version 1.1
    Spatial

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