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    • Canadian Ice Service Arctic Regional Sea Ice Charts in SIGRID-3 Format, Version 1

    Metadata Updated: September 19, 2025

    The Canadian Ice Service (CIS) produces digital Arctic regional sea ice charts for marine navigation, forecasting, and climate research. The ice charts are created through the manual analysis of in situ, satellite, and aerial reconnaissance data. The ice charts have information on ice concentration, stage of development, and ice form, following World Meteorological Organization terminology. This digital record of sea ice charts begin in 2006 and cover the following regions of the Canadian Arctic: Northern Canadian waters (Western Arctic, Eastern Arctic, and Hudson Bay) and Southern Canadian waters (Great Lakes and East Coast). Each regional shapefile (.shp) (encoded in SIGRID-3 format) and associated metadata file (.xml) are combined into a tar archive file (.tar) for distribution. All data are available via FTP.

    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 April 11, 2025
    Metadata Updated Date September 19, 2025

    Metadata Source

    Harvested from NASA Data.json

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date April 11, 2025
    Metadata Updated Date September 19, 2025
    Publisher NSIDC
    Maintainer
    Identifier 10.7265/N51V5BW9
    Data Last Modified 2025-09-10
    Category Earth Science
    Category Tag 16E15F51 D96E 4051 9124 75665Abdc6Ff "Arctic","Arctic Ocean, Sea Ice and Coasts"
    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 071dcf2e-2cd4-4a19-9260-225cdf5773d7
    Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
    Harvest Source Title NASA Data.json
    Homepage URL https://noaadata.apps.nsidc.org/NOAA/G02171/
    Old Spatial "CARTESIAN",{"WestBoundingCoordinate":-164.05002,"NorthBoundingCoordinate":83.19372,"EastBoundingCoordinate":21.96925,"SouthBoundingCoordinate":39.52777}
    Program Code 026:000
    Source Datajson Identifier True
    Source Hash 28004dd711cc987709cc9287f4e6e5a68fe6c2fa762fbe9b3c5c0fe0b74e2cf9
    Source Schema Version 1.1
    Spatial
    Temporal 2006-01-01/2006-01-01

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