Time for a reality check.

It has been the slowest July Arctic melt in the eight year JAXA
record<http://www.ijis.iarc.uaf.edu/seaice/extent/plot.csv>
.

<http://climateinsiders.files.wordpress.com/2010/07/jaxa_july_1-17_ice_melt.png>

Ice extent has declined at less than half the rate of 2007, and total ice
loss has been more than 200,000 km² less than the previous low in 2004.

DMI  <http://ocean.dmi.dk/arctic/icecover.uk.php>now shows Arctic ice extent
as second highest for the date, topped only by 2005.

<http://climateinsiders.files.wordpress.com/2010/07/icecover_2010-21.png>

Closeup below.

<http://climateinsiders.files.wordpress.com/2010/07/dmicloseup4.jpg>

Cryosphere Today shows that ice extent and concentration is about the
same<http://igloo.atmos.uiuc.edu/cgi-bin/test/print.sh?fm=07&fd=15&fy=1990&sm=07&sd=15&sy=2010>
as
it was 20 years ago.

<http://climateinsiders.files.wordpress.com/2010/07/uiucjuly152010vsjuly151990.jpg>

The modified NSIDC map below shows in green, areas where ice is present in
2010 but was not present in 2007.

<http://climateinsiders.files.wordpress.com/2010/07/nsidcjuly162007vsjuly162010.jpg>

The modified NSIDC map below shows (in red) ice loss over the last week.
Note that ice extent has increased slightly in the Chukchi and Beaufort
Seas, while it has declined slightly in the East Siberian Sea.

<http://climateinsiders.files.wordpress.com/2010/07/nsidcarcticicelossjuly09-july162010.jpg>

The modified NSIDC map below shows the record low ice loss since the first
of the month.

<http://climateinsiders.files.wordpress.com/2010/07/nsidcarcticicelossjuly01-july162010.jpg>

The modified NSIDC map below shows ice loss since early April.

<http://climateinsiders.files.wordpress.com/2010/07/nsidcapril052010vsjuly1620101.jpg>

The graph below shows PIPS ice thickness over the last five years. Average
ice thickness in 2010 continues to track a little below 2006. It should
bottom out in the next week or so between 2006 and 2009.

<http://climateinsiders.files.wordpress.com/2010/07/pips_ice_average_thickness_metres3.png>

The low ice loss is consistent with the low Arctic
temperatures<http://ocean.dmi.dk/arctic/meant80n.uk.php> we
have seen this summer.

<http://climateinsiders.files.wordpress.com/2010/07/meant_2010-51.png>

The North Pole webcam
below<http://psc.apl.washington.edu/northpole/webphotos/noaa1.jpg>
shows
that the meltponds are frozen over. Temperatures have been below -5°C this
week <http://psc.apl.washington.edu/northpole/POPS13_atmos_recent.html>.
Very cold for July.

<http://climateinsiders.files.wordpress.com/2010/07/noaa1-1.jpg>

David Schnare

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