The average surface air temperature for the year ending September 2017 is the 2nd warmest since 1900; however, cooler spring and summer temperatures contributed to a rebound in snow cover in the Eurasian Arctic,
slower summer sea ice loss, and below - average melt extent for the Greenland ice sheet.
Not exact matches
The major effect of a
slowing AMOC is expected to be cooler winters and
summers around the North Atlantic, and small regional increases in
sea level on the North American coast,» explained Chambers.
The spring melt began a month earlier than normal, and though the pace of decline
slowed some over the
summer, the Bering and Chukchi
Seas along Alaska's coast remained ice - free longer into the fall than ever before.
As the sun begins its seasonal descent in the Arctic sky and temperatures drop, the
summer melt of
sea ice is
slowing down.
It is likely that there has been about a 40 percent decline in Arctic
sea - ice thickness during late
summer to early autumn in recent decades and a considerably
slower decline in winter
sea - ice thickness.
In addition, we discuss why this recent rapid retreat of Arctic
summer sea ice might largely be a consequence of a
slow shift in ice - thickness distribution, which will lead to strongly increased year - to - year variability of the Arctic
summer sea - ice extent.
Ice loss during the second half of August was in fact the
slowest observed during the last decade, resulting in the observed, unexceptional September
sea ice extent being recorded despite the extremely low ice conditions present at the start of the
summer.
Another indication that the Arctic
sea ice retreat is a «regional event» is that late -
summer Antarctic
sea extent has been growing (at a
slower rate than the Arctic
sea ice retreat).