80 days north pole left or right12/8/2023 This plot shows average sea level pressure in the Arctic in millibars for October 2023. Ice growth within the channels of the Canadian Archipelago closed off the Northwest Passage. Open water remained in the Beaufort and Chukchi Seas at the end of October. The freeze up was particularly rapid along the Siberian Seas where the ice cover expanded to the coast by the end of the month. Overall, during October sea ice extent increased by 119,800 thousand square kilometers (46,300 square miles) per day, which is faster than the 1981 to 2010 average of 89,200 square kilometers (34,400 square miles) per day (Figure 1b). Sea Ice Index data.Ĭredit: National Snow and Ice Data CenterĪverage Arctic sea ice extent for October 2023 was 6.37 million square kilometers (2.46 million square miles), seventh lowest in the 45-year satellite record (Figure 1a). The gray areas around the median line show the interquartile and interdecile ranges of the data. 2023 is shown in blue, 2022 in green, 2021 in orange, 2020 in brown, 2019 in magenta, and 2012 in dashed brown. The graph above shows Arctic sea ice extent as of November 1, 2023, along with daily ice extent data for four previous years and the record low year. Passing just south of the islands of Storøya and Kvitøya, Svalbard, Norway This latitude is the boundary between the Arctic and High Arctic zones of Canada's National Topographic System, at which the longitude span of each map sheet doubles as one crosses this latitude going north. It crosses the Atlantic Ocean, Europe, Asia, the Arctic Ocean and North America.Īt this latitude the sun is visible for 24 hours, 0 minutes during the summer solstice and astronomical twilight during the winter solstice. The 80th parallel north is a circle of latitude that is 80 degrees north of the Earth's equatorial plane, and 10 degrees (690 miles / 1100 kilometers) south of the North Pole, in the Arctic.
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