Alaska Climate Research Center

The Alaska State Climate Center
The Alaska State Climate Center
The Alaska State Climate Center
Home > Arctic Sea Ice > Arctic Sea Ice Extent: April 18, 2024

Arctic Sea Ice Extent: April 18, 2024

April 18, 2024:  The  sea ice has decreased this week at a slightly higher rate of 1.61% (as opposed to last week’s decrease rate of 1.18%), from the level on 04/11/2024 of 14.314 M km2 to 14.084 M km2 for this week. The change to the sea ice melt season is now firmly in place. 

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 negative sea ice anomaly this week was less than the anomaly of -0.206 M km2 on 04/11/2024 to a lesser negative anomaly of -0.184 M km2 on 04/18/2024, and so less 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/).