SMMR and SSM/I-SSMIS and AMSR2

The EASE Grids Ancillary Grid Information, Version 1 and the Polar Stereographic Ancillary Grid Information, Version 1 data sets available at the NASA National Snow and Ice Data Center Distributed

The Calibrated Enhanced-Resolution Passive Microwave Daily EASE-Grid 2.0 Brightness Temperature ESDR, Version 2 data set, available at the NASA National Snow and Ice Data Center Distributed Active

The NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) has learned that the Department of Defense (DoD) has extended processing and delivery of Special Sensor

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

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