Sea Ice Extent – Day 121 – 3rd Highest Global Sea Ice For This Day – Antarctic Sets 33rd Daily Record For 2015

3rd Highest Global Sea Ice For This Day – Above one standard deviation.

33rd Daily Record for Antarctic – 1.75 million above the 1981-2010 mean. – Above 3 standard deviations.

Antarctic Sea Ice Extent for Day 121 From 1978 (infilled) Global Sea Ice Extent for Day 121 From 1978 (infilled) Global_Sea_Ice_Extent_Zoomed_2015_Day_121_1981-2010 Antarctic_Sea_Ice_Extent_Zoomed_2015_Day_121_1981-2010 Arctic_Sea_Ice_Extent_Zoomed_2015_Day_121_1981-2010

DataSouth / North

4 thoughts on “Sea Ice Extent – Day 121 – 3rd Highest Global Sea Ice For This Day – Antarctic Sets 33rd Daily Record For 2015

  1. Hooray, the NIC ice extent reports are back on line.

    2015 max was on day 93 at 14.55M km2. Last year on day 73 it was 15.52, or 7% more than 2015.

    As of the last report on April 30, 2015 NH ice extent is down 7.8% to 13.41 M km2. Last year on this date, NH extent was 13.74 M km2, or 2% more than this year.

    So this year’s melt started from a lower max extent, but is now tracking close to last year, having lost ice at a lower rate than last year.

    More at: https://rclutz.wordpress.com/2015/05/02/arctic-ice-watch-2015/

    1. That stands to reason, as it’s well known older, thicker sea ice is more resistant to summer melt.

      Which then begs the question, Why was the summer melt last year so much less, and why was the winter gain so much higher? We’re seeing compaction in the Canadian archipelago and a decline off Norway, and since open water allows greater heat loss, there is the chance that over the next few winters we will see a continuation of greater heat loss leading to greater ice formation that then in turn becomes compacted until such time as it has no more room and returns to 1980-level extents and volume. We’ve already seen a ~30% increase in Arctic sea ice volume since 2011’s record low, according to PIOMAS.

  2. I know an increase in ice is used to win an argument. However, personally I do not wish to see this; I have looked at climate temperature graphs of 900,000 years, and I fully expect our world is going to get a lot colder; I’d rather that change was delayed a while longer.

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