Table 3.10
Sea ice extent, average decadal minimums, by Arctic marine ecoregion, 1980 to 2020


Table 3.10
Sea ice extent, average decadal minimums, by Arctic marine ecoregion, 1980 to 2020
Table summary
This table displays the results of Sea ice extent. The information is grouped by Marine ecoregion (appearing as row headers), Decadal average sea ice extent, Decrease from 1980 to 1989 decade to 2010 to 2020 decade, 1980 to 1989, 1990 to 1999, 2000 to 2009 and 2010 to 2020, calculated using thousand km and percentage units of measure (appearing as column headers).
Marine ecoregion Decadal average sea ice extent Decrease from 1980 to 1989 decade to 2010 to 2020 decade
1980 to 1989 1990 to 1999 2000 to 2009 2010 to 2020
thousand km2 percentage
Arctic Basin 728.8 712.6 696.0 639.4 12.3
Western Arctic 267.8 265.7 219.1 173.5 35.2
Arctic Archipelago 222.1 219.3 225.4 214.4 3.5
Eastern Arctic 116.4 119.1 80.8 63.9 45.1
Hudson Bay Complex 25.9 19.5 10.5 11.8 54.3
Notes: Seasonal minimums occur in September. 2020 data are included in the latest decade.
Source: Fetterer, F., K. Knowles, W. N. Meier, M. Savoie and A. K. Windnagel, 2017, Sea Ice Index, Version 3, Northern Shapefiles, updated daily, February, March and September, Boulder, Colorado USA, NSIDC: National Snow and Ice Data Center, https://doi.org/10.7265/N5K072F8 (accessed July 13, 2020).
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