Alaska Climate Research Center

The Alaska State Climate Center
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Arctic Sea Ice Extent: May 18, 2023

May 18 2023:  Over the past week, the sea ice decreased by a slightly lower rate of 1.96%, from the level on 05/11/2023  of 13.042 M km2 to 12.787 M km2 for this week. The negative sea ice anomaly this week was slightly higher than the anomaly of -0.403 M km2 on 05/11/2023 to a lesser negative anomaly of -0.317 M km2 on 05/18/2023 and […]

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Arctic Sea Ice Extent: May 11, 2023

May 11 2023:  Over the past week, the sea ice had a decrease, since last week, by a slightly higher rate of 2.78%, from the level on 05/04/2023  of 13.414 M km2 to 13.042 M km2 for this week. The negative sea ice anomaly this week was slightly lower than the anomaly of -0.391 M km2 on 05/04/2023 to a greater negative anomaly

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Nenana Ice Classic

Another data point has been added to one of Alaska’s longest and most unique climatological time series: The tripod on the Tanana river at Nenana fell over on May 8, triggering a clock that records the time of break-up. The tradition of betting on the timing of the river break-up was started in 1917 and

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Arctic Sea Ice Extent: May 4, 2023

May 4 2023:  Over the past week, the sea ice had a decrease, since last week, by a slightly lower rate of 2.03%, from the level on 04/27/2023  of 13.690 M km2 to 13.414 M km2 for this week.  The negative sea ice anomaly this week was slightly higher than the anomaly of -0.472 M km2 on 04/27/2023 to a lesser negative anomaly

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