Hell Hath No Fury Like Oceans Warming!
Record Arctic ice loss in August
Previously you read on this blog that the Arctic ice cover was the second-lowest on record. The National Snow and Ice Data Center has since reported that the rate of ice loss through the month of August set a new record, reinforcing conclusions that the Arctic sea ice cover is in a long-term state of decline. With more than a week left to the end of the melt season, the Arctic shrink could still hit a new record annual low in September.
See below for the stats:
- Arctic sea ice extent on September 3, 2008 was 4.85 million square kilometers.
- Extent decline since the beginning of August was 2.47 million square kilometers.
- Extent is now within 370,000 square kilometers of 2007 value on the same date (about 2.08 million square kilometers below the 1979 to 2000 average).
- The average daily ice loss rate for August 2008 was 78,000 square kilometers per day (the fastest rate of daily ice loss ever recorded for a month of August).
- The average daily ice loss rate for August 2007 was 63,000 square kilometers per day.
- The average daily ice loss rate for the month of August was 51,000 square kilometers per day.
It takes very little additional energy to melt what remains of a very thinned sea ice cover!
Monthly August ice extent for 1979 to 2008 shows 2008 as the second-lowest August on record. —Credit: National Snow and Ice Data Center – High-resolution image
The graph above shows daily sea ice extent.The solid light blue line indicates 2008; the dashed green line shows extent for 2007; the gray line indicates average extent from 1979 to 2000. Sea Ice Index data. —Credit: National Snow and Ice Data Center – High-resolution image
Sea surface temperature anomalies for August 2008, expressed with respect to 1982 to 2006 mean, correspond closely with ice retreat. Blue line indicates ice edge; warm colors indicate positive sea surface temperature anomalies. —Credit: National Snow and Ice Data Center courtesy Mike Steele and Wendy Ermold: Polar Science Center/Applied Physics Laboratory/University of Washington.
Related Links: