Sea Ice Extent – Day 107 – 5th Highest Global Sea Ice For This Day – Antarctic 1.6 million above ‘Normal’ Published on April 18, 2015April 18, 2015 by sunshinehours1 5th Highest Global Sea Ice For This Day. Above one standard deviation. Antarctic 1.6 million above the 1981-2010 mean. Data: South / North Share this: Click to share on X (Opens in new window) X Click to share on Facebook (Opens in new window) Facebook Like Loading... Related