From the early polar explorers to offshore Arctic platforms or more recently the Manitoba homes on the shore of the Canadian Dauphin Lake, all have experience the devastating force of sea ice.
www.nasa.gov: 'IceBridge, a six-year NASA mission, is the largest airborne survey of Earth's polar ice ever flown. It will yield an unprecedented three-dimensional view of Arctic and Antarctic ice sheets, ice shelves and sea ice. These flights will provide a yearly, multi-instrument look at the behavior of the rapidly changing features of the Greenland and Antarctic ice.'
Over Arctic sea ice, pressure ridges, keels, floe edges and melt pond edges all introduce discrete obstructions to the flow of air or water past the ice, and are a source of form drag.
The Cryosat mission has produced since 2010 sea ice thickness maps in the Arctic up to latitudes of 88 N. Testing the climate model predictions against these observations allows to constrain the physics and the parameterizations of the sea ice component of the climate model further.
With the dramatic transformation of the Arctic sea ice landscape comes the necessity to reevaluate the physical processes involving sea ice and, in particular, the driving mechanisms that set the ice in motion and redistribute its mass into and out of the Arctic basin.
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