The Snow Melt Onset Over Arctic Sea Ice from SMMR and SSM/I-SSMIS Brightness Temperatures, Version 5 data set, available at the NASA National Snow and Ice Data Center Distributed Active Archive Center ...

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 ...

Effective October 15, 2025, due to non-renewed funding, NSIDC has suspended or reduced several Sea Ice Today tools and services. Previously-published Sea Ice Today analysis posts will remain online.

Effective October 15, 2025, due to non-renewed funding, NSIDC will suspend and reduce several Ice Sheets Today tools and services. Previously-published Ice Sheets Today analysis posts will remain ...

Antarctic sea ice has likely reached its maximum extent for the year, at 17.81 million square kilometers (6.88 million square miles) on September 17, according to scientists at the National Snow and ...

On September 17, Antarctic sea ice likely reached its annual maximum extent of 17.81 million square kilometers (6.88 million square miles). The 2025 maximum is the third lowest in the 47-year ...

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 ...

Arctic sea ice has likely reached its minimum extent for the year, at 4.60 million square kilometers (1.78 million square miles) on September 10, 2025, according to scientists at the National Snow and ...

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 ...

ICESat-2 and CryoSat-2 L4 Monthly Arctic Snow Depth and Sea Ice Thickness, Version 1 is now available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). This ...

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 ...

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.