The Near-Real-Time DMSP SSM/I-SSMIS Daily Polar Gridded Brightness Temperatures, Version 1 data set, will be retired from the NASA National Snow and Ice Data Center Distributed Active Archive Center
The Sea Ice Concentrations from Nimbus-7 SMMR and DMSP SSM/I-SSMIS Passive Microwave Data, Version 2 data set, available from the NASA National Snow and Ice Data Center Distributed Active Archive
The Bootstrap Sea Ice Concentrations from Nimbus-7 SMMR and DMSP SSM/I-SSMIS, Version 3 data set, accessible through the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC
The MEaSUREs Calibrated Enhanced-Resolution Passive Microwave Daily EASE-Grid 2.0 Brightness Temperature ESDR, Version 1 data set, accessible through the NASA National Snow and Ice Data Center
The Arctic and Antarctic Regional Masks for Sea Ice and Related Data Products, Version 1 data set is now available at the NASA National Snow and Ice Data Center Distributed Active Archive Center