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 ...

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 ...

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 ...

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 ...

Versions 7 of ATLAS/ICESat-2 L2A Normalized Relative Backscatter Profiles (ATL04), ATLAS/ICESat-2 L3A Land Ice Height (ATL06), ATLAS/ICESat-2 L3A Land and Vegetation Height (ATL08), ATLAS/ICESat-2 L3A ...

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, ...

What This Means For You: As a user of these datasets, you should anticipate a gap in data availability during the transition to alternative sources. We are actively evaluating possible alternative ...

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.

Much like a conveyer belt, an atmospheric river transports moisture from the tropical and subtropical oceans and dumps it as rain or snow in cooler regions. These long, narrow bands of concentrated ...