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Arctic Sea Ice Extent: September 22, 2022

September 22, 2022: over the past week, the sea ice has now increased by a rate from last week of 3.70%, from the level on 09/15/2022 of
4.657 M km2 to 4.836 M km2 for this week.  It turns out that the sea ice bottomed out only one day after last week’s report on 09/16/2022 with the final minimum sea ice extent level of 4.650 M km2); the turnaround day in 2021 was one day earlier (09/15/2021) and it is pretty interesting how similar the 2022 and 2021 sea ice seasons were, with 2022 season being slightly lower overall.

Plot Compiled by: Howard J. Diamond, PhD; Climate Science Program Manager at NOAA’s Air Resources Laboratory
Data Source: National Snow & Ice Data Center (NSIDC; https://nsidc.org/).

The the negative sea ice anomaly this week was greater from the anomaly of -1.538 M km2 on 09/15/2022 to a more negative anomaly of -1.558 M km2 on 09/22/2022 and so more anomalously negative for this time of year. 

Plot Compiled by: Howard J. Diamond, PhD; Climate Science Program Manager at NOAA’s Air Resources Laboratory
Data Source: National Snow & Ice Data Center (NSIDC; https://nsidc.org/).