The National Snow and Ice Data Center (NSIDC) is informing users that the AMSR2 prototype sea ice concentrations in the NOAA/NSIDC Near-Real-Time Sea Ice Concentration Climate Data Record, Version 3 data set have been discontinued as of 1 September 2025.
As previously announced, this discontinuation is due to NASA ending the processing of the AMSR Unified suite of data sets, which provided input for the prototype AMSR2 sea ice concentrations in our product.
Important information:
- The AMSR2 prototype sea ice concentration data are no longer available in the data set as of 1 September 2025.
- SSMIS-derived sea ice concentrations will continue.
- NSIDC is actively working on developing a new version of the sea ice CDR that will include AMSR2 data from an alternative provider.
Data set DOI: https://doi.org/10.7265/j0z0-4h87