Sea Ice Index products offer information about ice cover and its trends in the Arctic and Antarctica. In this collection, sea ice extent and concentration maps are provided at a resolution of 25 km on a daily basis. The products are computed using images from the Special Sensor Microwave Imager (SSM/I) and Special Sensor Microwave Imager/Sounder (SSMIS) instruments on Defense Meteorological Satellite Program (DMSP) satellites. Sea ice concentrations are generated from brightness temperature data. Sea ice extent is computed as areas covered by ice with a concentration greater than 15 percent. This dataset is for demonstration purposes only and is not maintained.
Longitude from 180°W to 180°E and latitude from 39.23°N to 90°N and 30.98°S to 90°S.
2017 - May 2021
None. For demonstration purposes only.
|Concentration||percentage of ice cover for cells with more than 15 percent ice cover|
|Extent||extent of ocean covered by ice at any concentration greater than 15 percent for a given day|
These data are freely, openly, and fully available to use without restrictions, provided that you cite the data according to the recommended citation at https://nsidc.org/about/use_copyright.html.
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