Fig.2 The Arctic sea ice extent at its daily minimum in 2005 & 2006 (above) and that on August 15, 2007 (below), measured by AMSE-E.
(Red frame indicates the area where the ocean surface temperature and salinity are obtained; refer to Fig.4)

On August 15, it broke the previous minimum extent recorded on 22 September 2005. Huge area of sea ice is retreated from East Siberian and North American side toward north.