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These images, derived from passive microwave satellite data, depict average sea ice conditions for last month. Extent images show the total area of ocean covered with at least 15 percent ice. Concentration images show varying degrees of ice coverage, from 15 to 100 percent. Concentration trend and anomaly images highlight decadal variances.
The graphs at right, Sea Ice Trends in Extent, show short-term or long-term trends in ice extent. Read About the Sea Ice Index Images for more information.
These satellite-derived images depict current sea ice conditions and trends. Long-term changes in Arctic sea ice are an index of climate change. Southern Hemisphere sea ice images are also available. For more information about current conditions and their significance, see Arctic Sea Ice News and Analysis.
Browse, Compare, and Animate Images
Compare data images with the Browse Image Spreadsheet Tool (BIST).
Animate extent and concentration images using the Sea Ice Animation Tool.
View sea ice extent on a Virtual Globe:
September
Sea Ice Extent, 1979-2010
Changes
in Glaciers, the Larsen B Ice Shelf, and Arctic Sea Ice Extent
Sea
Ice: Minimum and Maximum Extents
Archived Data and ImagesSee the Archived Data & Images page to download text and image files with monthly sea ice extent and area.
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