NOAA@NSIDC is pleased to announce that the Sea Ice Index, Version 3 data set, accessible through the National Snow and Ice Data Center (NSIDC), has been updated from near-real-time data to final data ...

The NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) is pleased to announce performance improvements to the OpenAltimetry web application. These updates include: ...

Using decades of satellite snow data from NASA’s NSIDC DAAC, researchers discovered that caribou in the Bathurst herd begin their epic migration just days after Arctic snowmelt begins—revealing a ...

Recent delivery from the US Navy of the SSMIS passive microwave data that several sea ice and brightness temperature products use has become more sporadic. The Defense Department has informed NSIDC ...

Snow-covered area in May across the western United States was 9 percent above average, at 105,000 square kilometers (41,000 square miles) of snow cover, ranking twelfth in the 25-year satellite record ...

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 ...

Access to SMAP Related data sets in the legacy, on-premises archive at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) will be retired on 1 July 2025. The ...

This graph of Antarctic sea ice February extent anomalies shows a slope of -2.6 ± 3.3 percent per decade. Note that the individual monthly values over the years are scattered widely around the trend ...

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 ...

April 2025 compared to previous years The downward linear trend in Arctic sea ice extent through 2025 for April is 35,100 square kilometers (13,600 square miles) per year or 2.4 percent per decade ...

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 ...

Arctic sea ice has likely reached its maximum extent for the year, at 14.33 million square kilometers (5.53 million square miles) on March 22, according to scientists at the National Snow and Ice Data ...