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Arctic Sea Ice Extent

Arctic Sea Ice Extent: November 17, 2022

November 17, 2022: Over the past week, the sea ice has continued to increase but at a lower rate from last week, of 4.28%, from the level on 11/10/2022 of 9.370 M km2 to 9.789 M km2 for this week.  The negative sea ice anomaly this week was greater than the anomaly of -0.943 M km2 on 11/10/2022 to a more negative anomaly of -0.999 M km2 on 11/17/2022 and so more anomalously negative for this time of year.

Arctic Sea Ice Extent Archive

Arctic Sea Ice Extent: November 10, 2022

November 10, 2022: Over the past week, the sea ice has continued to increase but at a lower rate from last week, of 5.15%, from the level on 11/03/2022 of 8.887 M km2 to 9.370 M km2 for this week.  The negative sea ice anomaly this week was greater than the anomaly of -0.919 M km2 on 10/27/2022 to a more negative anomaly of -0.943 M km2 on 11/10/2022 and so less anomalously negative for this time of year.

Arctic Sea Ice Extent: November 3, 2022

November 3, 2022: Over the past week, the sea ice has continued to increase but  at a lower rate from last week, of 10.25%, from the level on 10/27/2022 of 7.976 M km2 to 8.887 M km2 for this week; but still a pretty good increase over a week period. The negative sea ice anomaly this week was less than the anomaly of -1.266 M km2 on 10/27/2022 to a less negative anomaly of -0.919 M km2 on 11/03/2022 and so less anomalously negative for this time of year.

Arctic Sea Ice Extent: October 27, 2022

October 27, 2022: Over the past week, the sea ice has continued to increase at a higher rate from last week of 13.58%, from the level on 10/20/2022 of 6.893 M km2 to 7.976 M km2 for this week; a pretty healthy increase over a week period. The negative sea ice anomaly this week was less than the anomaly of -1.724 M km2 on 10/20/2022 to a less negative anomaly of -1.266 M km2 on 10/27/2022 and so less anomalously negative for this time of year. 

Arctic Sea Ice Extent: October 20, 2022

October 20, 2022: Over the past week, the sea ice has continued to increase at a higher rate from last week of 10.66%, from the level on 10/13/2022 of 6.158 M km2 to 6.893 M km2 for this week. The negative sea ice anomaly this week was less than the anomaly of -1.802 M km2 on 10/13/2022 to a less negative anomaly of -1.724 M km2 on 10/20/2022 and so less anomalously negative for this time of year.

Arctic Sea Ice Extent: October 13, 2022

October 13, 2022: Over the past week, the sea ice has continued to increase by a slightly lower rate from last week of 8.59%, from the level on 10/06/2022 of 5.629 M km2 to 6.158 M km2 for this week.   The negative sea ice anomaly this week was greater from the anomaly of -1.698 M km2 on 10/06/2022 to a more negative anomaly of -1.802 M km2 on 10/13/2022 and so more anomalously negative for this time of year.

Arctic Sea Ice Extent: October 6, 2022

October 6, 2022: Over the past week, the sea ice has continued to increase by a greater rate from last week of 8.90%, from the level on 09/29/2022 of 5.128 M km2 to 5.629 M km2 for this week.  The negative sea ice anomaly this week was greater from the anomaly of -1.657 M km2 on 09/29/2022 to a more negative anomaly of -1.698 M km2 on 10/06/2022 and so more anomalously negative for this time of year.