High Mountain Asia Daily Reach-Scale River Discharge using Data Assimilation, 2004-2019, Version 1 is now available at the NASA National Snow and Ice Data Center Distributed Active Archive Center ...

Explorers have dreamed of trade shortcuts across the Arctic Ocean for centuries. That shortcut was more easily imagined than achieved, thanks to Arctic weather, polar darkness, and near-constant sea ...

On September 10, Arctic sea ice likely reached its annual minimum extent of 4.60 million square kilometers (1.78 million square miles). The 2025 minimum shares the tenth lowest spot in the nearly ...

Throughout August 2025, sea ice rapidly melted and compacted north of Alaska in the Beaufort Sea, initiated by a warm pulse of air from east Siberia that was sustained by persistent winds from the ...

A strong and persistent melt event occurred in southern Greenland in mid-August 2025, preceded by extensive rain in the same area. Snowfall following the rain events covered the lower elevation bare ...

At the end of July 2025, daily sea ice extent in both hemispheres ranked third lowest in the 47-year satellite record. For most of the month, Arctic sea ice extent tracked close to levels recorded for ...

The Near-Real-Time AMSR2 EASE-Grid Daily Global Ice Concentration and Snow Extent, Version 1, (NISE_A2) is now available at the NASA National Snow and Ice Data Center Distributed Active Archive Center ...

NOAA@NSIDC is pleased to announce the release of Sea Ice Index, Version 4. This new version uses input data from the JAXA GCOM-W1 AMSR2 instrument for 1 January 2025 ...

Arctic sea ice extent tracked at near-record low levels through much of June, hitting daily record low levels from June 20 to 26. Sea ice coverage was particularly low in the Barents and Kara Seas, ...

Arctic sea ice extent in May declined at a slightly faster pace compared to average. In Antarctica, the Bellingshausen Sea remains nearly ice free as far south as 72 degrees South by the end of May.

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 ...

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). As ...