The NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) is pleased to announce the release of two new data products based on the Advanced Microwave Scanning Radiometer 2 (AMSR2):
AMSR2 Daily Polar Gridded Brightness Temperatures, Version 1
AMSR2 Daily Polar Gridded Sea Ice Concentrations, Version 1
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 following SSMIS-based data products, which are expected to cease on 31 July 2025:
Near-Real-Time DMSP SSM/I-SSMIS Daily Polar Gridded Brightness Temperature (NSIDC-0080)
Near-Real-Time DMSP SSMIS Daily Polar Gridded Sea Ice Concentrations (NSIDC-0081)
Please refer to Earthdata: Status Update On DMSP Data Products for further details on the transition from DMSP SSMIS data.
The pole hole mask in the Northern Hemisphere sea ice concentration fields of the AMSR2 Daily Polar Gridded Sea Ice Concentrations, Version 1 data set does not cover the full pole hole. As a result, there are 52 grid cells (approximately 35,000 square kilometers) that are in the pole hole, but are flagged as missing instead of pole. This will be resolved in the next version release. Data are provided in binary format for the initial release, and the next version will be provided in NetCDF format.
The NSIDC DAAC provides access to documentation and data from the following locations:
AMSR2 Daily Polar Gridded Brightness Temperatures, Version 1
Data set DOI: https://doi.org/10.5067/XB4WCE7O0PVV
AMSR2 Daily Polar Gridded Sea Ice Concentrations, Version 1
Data set DOI: https://doi.org/10.5067/EH83VPG97LTP