Arbetter, 4.7, Statistical A statistical model using regional
observations of sea ice area and global NCEP air temperature, sea level pressure, and freezing degree day estimates continues the trend of projecting below - average summer sea ice conditions for the Arctic.
The Norwegian Meteorological Institute also produce a time
series of sea ice area in the Svalbard region based on data from OSI - SAF.
Covering 1.59 million square miles (4.12 million square kilometers), this summer's sea ice shattered the previous record for the smallest ice cap of 2.05 million square miles (5.31 million square kilometers) in 2005 — a further loss
of sea ice area equivalent to the states of California and Texas combined.
Although you really can't check this assertion since the data is not really available anywhere — the Cryosphere has some
charts of sea ice area but where are the numbers — where are the sea ice extent numbers.
Others seem to prefer NSIDC data for monthly
averages of both sea ice area and sea ice extent, or JAXA for daily data on sea ice extent, or daily sea ice area data from Cryosphere Today.
Note that we computed sea ice — temperature regression coefficients with detrended data and then multiplied these by the
trend of the sea ice area to obtain the congruent temperature change.