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    • NOAA/NSIDC Climate Data Record of Passive Microwave Sea Ice Concentration, Version 5

    Metadata Updated: September 22, 2025

    This data set provides a Climate Data Record (CDR) of sea ice concentration from passive microwave data. The CDR algorithm output is a rule-based combination of ice concentration estimates from two well-established algorithms: the NASA Team (NT) algorithm (Cavalieri et al. 1984) and NASA Bootstrap (BT) algorithm (Comiso 1986). The CDR is a consistent, daily and monthly time series of sea ice concentrations from 25 October 1978 through the most recent processing for both the north and south polar regions. All data are on a 25 km x 25 km grid.Note: A near-real-time version of this data set also exists to fill the gap between the time that this data set is updated through to the present. The data set is called the Near-Real-Time NOAA/NSIDC Climate Data Record of Passive Microwave Sea Ice Concentration (https://nsidc.org/data/g10016).

    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 September 22, 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 September 22, 2025
    Publisher NSIDC
    Maintainer
    Identifier 10.7265/rjzb-pf78
    Data Last Modified 2025-09-11
    Category Earth Science
    Category Tag 16E15F51 D96E 4051 9124 75665Abdc6Ff "Arctic","Arctic Ocean, Sea Ice and Coasts","Melting Glaciers, Snow and Ice"
    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 88a01127-76cb-464b-a375-47cf3d3457e6
    Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
    Harvest Source Title NASA Data.json
    Homepage URL https://noaadata.apps.nsidc.org/NOAA/G02202_V5/
    Old Spatial
    Program Code 026:000
    Source Datajson Identifier True
    Source Hash ad545d5fdc25b032ec8069abdd5da91648179265cdd8fe3c94dba3527b8f5d45
    Source Schema Version 1.1
    Spatial
    Temporal 1978-10-25/1978-10-25

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