Sentences with phrase «more old sea ice»

Not exact matches

Thinner, young sea ice is more susceptible to being compressed by wind than is older, thicker sea ice.

Other factors would include: — albedo shifts (both from ice > water, and from increased biological activity, and from edge melt revealing more land, and from more old dust coming to the surface...); — direct effect of CO2 on ice (the former weakens the latter); — increasing, and increasingly warm, rain fall on ice; — «stuck» weather systems bringing more and more warm tropical air ever further toward the poles; — melting of sea ice shelf increasing mobility of glaciers; — sea water getting under parts of the ice sheets where the base is below sea level; — melt water lubricating the ice sheet base; — changes in ocean currents -LRB-?)

The United States, despite having substantial scientific operations in Antarctica and seeing ever more activity in its Arctic waters, has been relying on a pair of aging, decades - old heavy icebreakers to maintain mobility in ice - cloaked seas.

What is distinct about global warming is that the basics of 100 - year - old theory have stood the test of time (more CO2 = warming world = less ice + higher seas and lots of climate change).

The fate of sea ice in the Arctic Ocean is determined by a complicated mix of factors, including the pressure changes, with the biggest loss of old thick ice resulting more from a great «flush» of floes than melting, Dr. Rigor and many other scientists tracking the region say.

The physical justification for this statement is based primarily on the loss of old, thick sea ice and the increased mobility of sea ice (less extensive, thinner ice is more mobile).

Compared to spring 2011, the old ice in the Beaufort Sea in May 2012 appears to be somewhat more consolidated and older overall (which typically implies thicker ice), with more ice of three years of age or greater and less first - year ice mixed in.

Arctic air temperatures are increasing at twice the rate of the rest of the world — a study by the U. S. Navy says that the Arctic could lose its summer sea ice by next year, eighty - four years ahead of the models — and evidence little more than a year old suggests the West Antarctic Ice Sheet is doomed, which will add between twenty and twenty - five feet to ocean leveice by next year, eighty - four years ahead of the models — and evidence little more than a year old suggests the West Antarctic Ice Sheet is doomed, which will add between twenty and twenty - five feet to ocean leveIce Sheet is doomed, which will add between twenty and twenty - five feet to ocean levels.

Those low years were due in part to the loss of older sea ice, which was replaced by younger (hence thinner) ice that was more susceptible to summer melt.

Stroeve's research expedition comes at the cusp of fundamental changes to the Arctic's sea ice cover — from older ice that is hard to melt, to seasonal ice that melts more quickly.

Compared to old sea ice that is 3 meters thick, open water ventilates 70 times more heat.