Arctic sea ice heading for new record low "In April, the centre published data showing that sea ice had almost recovered to the 20-year average. That ignited a flurry of interest on climate change skeptic blogs.
But much of that ice was thin and new. The warmest April on record in the Arctic made short work of it." ... [Dr. Serreze's] data could be underestimating the collapse of summer ice cover, said David Barber of the University of Manitoba. Researchers can't learn anything from satellite data about the state or thickness of the ice." http://www.theglobeandmail.com/news/national/arctic-sea-ice-heading-for-new-record-low/article1575212/ On Sun, Jul 18, 2010 at 8:34 PM, David Schnare <[email protected]> wrote: > 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 > > > -- > You received this message because you are subscribed to the Google Groups > "geoengineering" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]<geoengineering%[email protected]> > . > For more options, visit this group at > http://groups.google.com/group/geoengineering?hl=en. > -- You received this message because you are subscribed to the Google Groups "geoengineering" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/geoengineering?hl=en.
