• Organization: National Aeronautics and Space Administration
• Updated: 2026-02-10

Weekly Southern Ocean ice limits, have been digitized from U.S. Navy Fleet Weather Facility ice charts, at the Max-Planck Institut fur Meteorologie, Hamburg. Coverage is from 1 January 1973 to 31...

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• Organization: National Aeronautics and Space Administration
• Updated: 2026-02-10

The National Snow and Ice Data Center holds a collection of charts depicting ice conditions in the seas off Alaska and western Canadian coasts. Ice edge position and some ice concentration and...

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• Organization: National Aeronautics and Space Administration
• Updated: 2026-02-10

The Sea Ice Edge Location and Extent in the Russian Arctic, 1933-2006 data are derived from sea ice charts from the Arctic and Antarctic Research Institute (AARI), St. Petersburg, Russia. Provided...

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• Organization: National Aeronautics and Space Administration
• Updated: 2026-02-10

MODIS/Terra Near Real Time (NRT) Sea Ice Extent 5-Min L2 Swath 1km (MOD29) contains the following fields: sea ice by reflectance, sea ice by reflectance pixel quality assurance (QA), ice surface...

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• Organization: National Aeronautics and Space Administration
• Updated: 2026-02-10

MODIS/Aqua Sea Ice Extent 5-Min L2 Swath 1km Near Real Time (NRT), short name MYD29, contains the following fields: sea ice by reflectance, sea ice by reflectance pixel quality assurance (QA), ice...

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• Organization: National Aeronautics and Space Administration
• Updated: 2026-02-10

MODIS Near Real Time (NRT) Sea Ice Extent 5-Min L2 Swath 1km, MYD29, data set contains fields for sea ice by reflectance, sea ice by reflectance pixel Quality Assessment (QA), Ice Surface...

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• Organization: National Aeronautics and Space Administration
• Updated: 2026-02-10

MODIS/Terra Near Real Time (NRT) Coarse Sea Ice Extent 5-Min L2 Swath 5km (MOD29L2C) data set contains fields for sea ice by reflectance, sea ice by reflectance pixel Quality Assessment (QA), Ice...

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• Organization: National Aeronautics and Space Administration
• Updated: 2026-02-10

MODIS/Terra Sea Ice Extent 5-Min L2 Swath 1km Near Real Time (NRT), short name MOD29, contains the following fields: sea ice by reflectance, sea ice by reflectance pixel quality assurance (QA),...

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• Organization: National Aeronautics and Space Administration
• Updated: 2026-02-10

This data set contains information on recurring spring leads and landfast ice extent in the Beaufort and Chukchi Seas. This data set maps and documents the spatial and temporal distribution of...

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• Organization: National Aeronautics and Space Administration
• Updated: 2026-02-10

MODIS/Aqua Near Real Time (NRT) Coarse Sea Ice Extent 5-Min L2 Swath 5km (MYD29L2C) data set contains fields for sea ice by reflectance, sea ice by reflectance pixel Quality Assessment (QA), Ice...

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• Organization: National Aeronautics and Space Administration
• Updated: 2026-02-10

This data set provides monthly sea ice concentration for the Arctic from 1901 to 1995 and for the Southern Oceans from 1973 to 1990 on a standard 1-degree grid (cylindrical projection) to provide...

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• Organization: National Aeronautics and Space Administration
• Updated: 2026-02-10

Sea ice extent from January 1973 through August 1990 was digitized from weekly operational sea ice charts produced by the Navy/NOAA Joint Ice Center. Charts were digitized by hand using a 1 degree...

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• Organization: National Aeronautics and Space Administration
• Updated: 2026-02-10

Notice: Due to funding limitations, this data set was recently changed to a “Basic” Level of Service. Learn more about what this means for users and how you can share your story here: Level of...

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• Organization: National Aeronautics and Space Administration
• Updated: 2026-02-10

Notice to Data Users: The documentation for this data set was provided solely by the Principal Investigator(s) and was not further developed, thoroughly reviewed, or edited by NSIDC. Thus, support...

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• Organization: National Aeronautics and Space Administration
• Updated: 2026-02-10

Notice to Data Users: The documentation for this data set was provided solely by the Principal Investigator(s) and was not further developed, thoroughly reviewed, or edited by NSIDC. Thus, support...

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• Organization: National Aeronautics and Space Administration
• Updated: 2026-02-10

Notice to Data Users: The documentation for this data set was provided solely by the Principal Investigator(s) and was not further developed, thoroughly reviewed, or edited by NSIDC. Thus, support...

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• Organization: National Aeronautics and Space Administration
• Updated: 2026-02-10

This data set provides sea ice extent for the Arctic (60-90 degrees North) and Antarctic (52-90 degrees South) in Scatterometer Image Reconstruction (SIR) binary image format, along with ASCII...

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• Organization: National Aeronautics and Space Administration
• Updated: 2026-02-10

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...

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• Organization: National Aeronautics and Space Administration
• Updated: 2026-02-10

NSIDC provides this data set to aid investigations of variability and trends in sea ice cover. Ice cover in these data are indicated by sea ice concentration: the percentage of the ocean surface...

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• Organization: National Aeronautics and Space Administration
• Updated: 2026-02-10

This data set provides estimates of Arctic sea ice extent and concentration from 1901 to 1956 created from a collection of historic, hand-drawn sea ice charts from the Danish Meteorological...

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