Another one for the record books Sea ice summer of 2012 Another one for the record books 1
Prologue: Ice age M. Tschudi Slightly older ice
Prologue: Ice thickness Ice thickness of 2 – 4 m in March Icebridge Ice thickness of 2 – 4 m in March
March extent close to average Prologue: Ice extent March March extent close to average
Prologue: Ice extent April April pretty good
Prologue: Ice extent May May still strong
Prologue: Ice extent June June hanging in there
Prologue: Ice extent July July starting to fade
The August Storm August 01
August 01
August 02
August 03
August 04
August 05
August 06
August 07
August 08
August 09
August 10
August 11
August 12
August 13
August 14
August 15
August 16
August 17
August 18
August 19
August 20
August 21
August 22
August 23
August 24
August 25 Happy birthday!
Large decrease in ice extent The August Storm August 1 August 25 Large decrease in ice extent
Summer melt: Ice extent A new record low
Sea ice extent – September Decrease of 14 % per decade Downward trend, new record low in 2012
Monthly average ice extents A downward trend, most pronounced in summer
Years of major ice losses 1985 1990 1980 1995 2000 2005
That are accelerating 2007 2008 2009 2010 2011 2012 What’s next?
The summer of 2012 A new record low
What about the summer of 2013? Draw the September 2013 minimum ice extent There will be a prize What’s next
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1985 1990 1980 1995 2000 2005
2007 2008 2009 2010 2011 2012
Draw the September 2013 minimum ice extent There will be a prize