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File: ClimateDashboard-Antarctic-sea-ice-winter-maximum-map_202109_1400px.jpg

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Alternate Text: Map of Southern Hemisphere showing average sea ice extent in September 2021, the winter maximum
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Map of Southern Hemisphere showing average sea ice extent in September 2021, the winter maximum

Image caption

Antarctic sea ice concentration in September 2021, the month of the maximum winter extent in the Southern Hemisphere. Conditions in 2021 were close to the 1981-2010 median extent (yellow line). Map by NOAA Climate.gov, based on satellite data provided by National Snow and Ice Data Center.