NOAA@NSIDC is pleased to announce the upcoming release of Sea Ice Index, Version 4, available at the National Snow and Ice Data Center on August 1. This new version transitions from SSMIS to AMSR2 ...

A prolonged period of extensive ice sheet melting from roughly July 7 to July 20 tipped the 2025 melt season to above the ...

ICESat-2 Derived Canopy Height Model, Version 1 is now available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). This data set provides a regression-based ...

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The SnowEx21 Prairie Station Digital Surface Models from UAV-LiDAR, Version 1 data set, available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC), has been ...

The National Snow and Ice Data Center (NSIDC) is pleased to announce that the Department of Defense (DoD) has agreed to extend processing and delivery of Special Sensor Microwave Imager/Sounder (SSMIS ...

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 ...

Update: DMSP SSMIS data processing has been extended through 31 July 2025. See the Earthdata: Status Update on DMSP Data Products for further details. The NASA National Snow and Ice Data Center ...

May sea ice extent in the Arctic averaged 12.56 million square kilometers (4.85 million square miles), tying with 2004 for seventh lowest on the 47-year satellite record. Antarctic sea ice extent for ...

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 ...

This update includes the addition of the AMSR-E derived data, with each product now covering the temporal range of June 2002 - present (with a gap in data from October 2011 - July 2012, between the ...

Figure 1b. The graph above shows Arctic sea ice extent as of April 2, 2025, along with daily ice extent data for four previous years and the record low year. 2024 to 2025 is shown in blue, 2023 to ...