For further information, please see our April Arctic sea ice extent averaged 13.91 million square kilometers (5.37 million ...

When Curtis Rattray walks on Tahltan land, he often pauses to write in a tattered notepad. He jots down descriptions of the ...

Snow cover duration was just above the twenty-fifth percentile of the 25-year satellite record. Snow albedo, also known as snow brightness, started low in early April and decreased throughout the ...

Effective May 5, 2025, NOAA’s National Centers for Environmental Information (NCEI) will decommission its snow and ice data products from the Coasts, Oceans, and Geophysics Science Division (COGS).

The AMSR-E/AMSR2 Unified L3 Daily 6.25 km Polar Gridded 89 GHz Brightness Temperatures, Version 1, the AMSR-E/AMSR2 Unified L3 Daily 12.5 km Brightness Temperatures, Sea Ice Concentration, Motion & ...

Arctic sea ice extent through most of April changed very little. Only at the end of the month did extent begin to decline. Because the month started with unusually low extent, however, the average ...

As climate change warms the Arctic, new challenges continue to emerge for communities and ecosystems in the region. One such challenge is the increase of rain on snow events. When rain falls on snow ...

Dear data users, NSIDC does not archive or provide citation guidance for these data. This data set includes beta profiles, chemistry, and density data obtained from Dominion Range ice cores. The ...

Dear data users, NSIDC does not archive or provide citation guidance for these data. The Circumpolar Arctic Vegetation Map (CAVM) defines the spatial extent of dominant vegetation in terms of the ...

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As a condition of using these data, you must cite the use of this data set. Such a practice gives credit to data set producers and advances principles of transparency and reproducibility. Stroeve, J. ...

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