Almost all state - of - the - art AOGCMs now include more elaborate sea ice dynamics and some now include
several sea ice thickness categories and relatively advanced thermodynamics.
Not exact matches
The complete absence of multiyear
sea ice in the region, confirmed by
thickness surveys and local observations, is a first for the region in the past
several decades.
The
thickness of Arctic
sea ice has also been on a steady decline over the last
several decades.
While the
ice thickness is generally thinner in May 2016 compared to previous years, the air temperature has been
several degrees above the last 10 year mean in the northern North Atlantic and the Beaufort
Sea, but colder in the Eastern Siberian
Sea and Laptev
Sea causing the described melt pond pattern.
As surface temperture is altitude dependent one might have thought the first thing to check would be a map, as the arctic
ice lies at
sea level + 9 % of its
thickness, while the antarctic
ice sits
several kilometers high in the sky, and the surrounding apron of the stuff is immune to windage because of the circumpolar continent in its midst.
For the Arctic, there are
several techniques available for estimating the
thickness distribution of
sea ice.