Version 3 Now Available for Sea Ice Trends and Climatologies from SMMR and SSM/I-SSMIS

The Sea Ice Trends and Climatologies from SMMR and SSM/I-SSMIS data set available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) has been updated to Version 3.

The following changes were made to this version of data:

  • Extended the temporal coverage of the data to 31 December 2016.
  • Incorporated a change from Version 2 to Version 3 of the Bootstrap data set. For V3 Bootstrap data, the concentration record was re-calculated for the entire period of the data set, 1978 through current processing. The most impactful changes were a lowering of the threshold to 10% for ice extent, and the recalculation of the algorithm’s tie points every day. However, despite the new 10% threshold for Bootstrap input data, this Sea Ice Trends and Climatologies data set continues to be derived using a 15% threshold.

Data Set DOI: https://doi.org/10.5067/IJ0T7HFHB9Y6

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