The left map illustrates the cumulative melt days on the Greenland Ice Sheet for the 2025 melt season through June 30. The ...

These data sets provide daily files of brightness temperature data and sea ice concentrations for both the Northern and Southern Hemispheres. These data products serve as a replacement for the ...

The SSMIS data are used as input for this NSIDC-produced data set, which will therefore stop processing after 31 July 2025.

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 National Snow and Ice Data Center was informed on 24 June 2025 that the Department of Defense (DoD) will cease processing and delivering the Special Sensor Microwave Imager/Sounder (SSMIS) data no ...

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 ...

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 ...

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 ...

Home Data User Resources Data Announcements New data set release: International Ice Patrol Annual North Atlantic Iceberg Summaries and Reports, Version 1 ...

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 ...

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 ...