June 15 2023: Over the past week, the sea ice had a decrease, since last week, by a higher rate of 4.81%, from the level on 06/08/2023 of
11.551 M km2 to 10.995 M km2 for this week.
![](https://akclimate.org/wp-content/uploads/2023/06/NH_seaice_extent-2023-6-15-1024x623.png)
Data Source: National Snow & Ice Data Center (NSIDC; https://nsidc.org/).
The negative sea ice anomaly this week was lower than the anomaly of -0.622 M km2 on 06/08/2023 to a greater negative anomaly of -0.812 M km2 on 06/15/2023 and so more anomalously negative for this time of year.
![](https://akclimate.org/wp-content/uploads/2023/06/NH_seaice_extent-anomaly2023-6-15-1024x623.png)
Data Source: National Snow & Ice Data Center (NSIDC; https://nsidc.org/).