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 ...

With the migration of GLAS/ICESat data to the NASA Earthdata Cloud, transformation services will be retired and no replacement services in the cloud are planned for GLAS/ICESat L1B Global Elevation ...

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 ...

On March 1, Antarctic sea ice likely reached its minimum extent of 1.98 million square kilometers (764,000 square miles), tying for second lowest extent with 2022 and 2024 in the 47-year satellite ...

Arctic sea ice growth was slow in February, leaving extent at record-low levels for the end of the month. In the Antarctic, the annual minimum in extent is imminent, and near a record low.

Air temperatures in December 2024 were above average over the entire Arctic Ocean, continuing the pattern set in November. Average Arctic sea ice extent for December was the lowest in the satellite ...

Although area and extent may sound synonymous, they are different measurements, rendering different numbers, even from the same satellite observations. Sea ice area is the total region covered by ice.

A glacial lake is a body of water that originates from a glacier. It typically forms at the foot of a glacier, but may form on, in, or under it. As Earth’s climate warms, the world’s glaciers are ...