The AMSR-E/AMSR2 Unified L3 Daily 25 km Brightness Temperatures & Sea Ice Concentration Polar Grid Version 1 data set available at the NASA National Snow and Ice Data Center Distributed Active Archive
As of 01 September 2025, the NASA AMSR2 SIPS will stop processing and delivering updates to Advanced Microwave Scanning Radiometer Unified (AMSR Unified) data sets. For more information, see "User notice: Updates to NASA AMSR-E/AMSR2 Unified data sets to cease on 01 September 2025".
The NSIDC DAAC is retiring access to its legacy, on-premises data archive and transitioning to the NASA Earthdata Cloud as the primary data archive. View planned retirement dates here.