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Sea Ice Index Daily and Monthly Image Viewer

Arctic- and Antarctic-wide changes in sea ice

Data Archive

Here you can access the archived monthly and daily Sea Ice Index images and data as well as the input data from which the Sea Ice Index is derived.

All archived data can be obtained from the following locations:

The Sea Ice Index archive contains the following:

  • Monthly images of extent, concentration, anomalies, and trends from November 1978 through last month.
  • Daily images of extent and concentration.
  • Monthly sea ice extent and area data files.
  • Monthly GIS compatible shapefiles of ice extent.
  • Monthly and daily GIS compatible shapefiles of median ice extent.
  • Daily sea ice extent data files and daily climatology data files with data from November 1978 through yesterday.