See:
http://www.esa.int/esaCP/SEM7ZF8LURE_index_0.html
Also (from NSIDC):
"Interestingly, while the chances seem low that September 2006 will set
a new record for ice extent, it is close to upsetting 2002 as the
record low in terms of ice area. Ice extent is based on summing all
regions with at least 15% ice concentration (15% ice and 85% open
water). Ice area is the total area of ice once open water areas are
removed from the calculation. In other words, ice area can be thought
of as the total area of ice if it were squished together so there were
no gaps.
A new record low for sea ice area would indicate that the ice pack as a
whole is spread out. Much of this diffuse, low-concentration ice is in
the vicinity of the polynya. See Figure 3, below, for more details on
the polynya."
In short, I fear we're getting a year that seems reasonably well in the
statistics which are normally absed on extent. However, the problems
in area won't be shown. In the popular press, everyone will say: 'O
look, it's going better' (ok, I'm being a little bit ironic), but in
reality, it's worse than last year.
Wouter
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