The East Siberian Sea experienced near- to slightly-below average temperatures temperatures were slightly below average over the Barents and Norwegian Seas. Temperatures were modestly above average north of Greenland and stretching towards the Laptev and Kara Seas as well as the southern parts of the Beaufort Sea. Yellows and reds indicate high air pressure blues and purples indicate low pressure.Ĭredit: NSIDC courtesy NOAA Earth System Research Laboratory Physical Sciences LaboratoryĪir temperatures over the Arctic Ocean at the 925 millibar level (about 2,500 feet above the surface) in November were broadly similar to those seen in October, with mostly above average warmth in and around the Canadian Archipelago of 4 to 5 degrees Celsius (7 to 9 degrees Fahrenheit) (Figure 2a). This plot shows average sea level pressure in the Arctic in millibars for November 2023. Thus, such events are rare but not unknown. Ice growth for November occurred all along the margins of the Arctic Ocean, dominated by growth in Baffin Bay and the southern Beaufort Sea.Ī November pause in ice growth occurred three times in the past: November 3 to 8, 2013 November 13 to 20, 2016 and now November 19 to 24, 2023. A cyclone in the Bering Sea around this time also pushed the ice edge polewards in the Chukchi Sea. The strong winds helped to push the ice edge in the East Greenland and Barents Seas northwards, limiting new ice formation. Freeze up temporarily stalled starting November 22, as several cyclones brought warm, moist air into the north Atlantic. Overall, during November, sea ice extent increased by 70,800 thousand square kilometers (27,300 square miles) per day, slightly faster than the 1981 to 2010 average of 69,500 square kilometers (26,800 square miles) per day (Figure 1b). Sea Ice Index data.Ĭredit: National Snow and Ice Data CenterĪrctic sea ice extent for November 2023 averaged 9.66 million square kilometers (3.73 million square miles), tying with 2006 for 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 December 4, 2023, along with daily ice extent data for four previous years and the record low year.
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