The NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) is pleased to announce that the OpenAltimetry web application has been updated to serve Version 7 of the ATLAS ...

The SnowEx20 Time Series Snow Change Measurements from Interval Boards, Version 1 data set is now available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) ...

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.

Beginning October 15, 2025, NSIDC’s Sea Ice Today services will be reduced because of non-renewed funding. This means no new monthly and mid-month analysis posts ...

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 ...

From the National Snow and Ice Data Center and the Cooperative Institute for Research in Environmental Sciences, University of Colorado Boulder Sea ice is one of the key indicators of planet-wide ...

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 ...

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 ...

A moderately intense melt season for the Greenland Ice Sheet has continued in July, with an extended period of high temperatures and coastal melting in mid-July. Temperatures at Summit closely ...