Sentences with phrase «warm ocean water circulating»

Antarctica's great ice sheet is losing ground as it is eroded by warm ocean water circulating beneath its floating edge, a new study has found.

The main root of this threat is the potential collapse of West Antarctica's marine - based ice sheets — massive expanses of glacial ice that rest not on land but the ocean floor — in particular, those where warm ocean waters circulate nearby [Intergovernmental Panel on Climate Change (IPCC), 2013].

Not exact matches

The incoming water, part of the global conveyor belt of currents circulating throughout the oceans, is relatively warm and salty compared with the rest of the Southern Ocean.

If you decouple that ice from where it's grounded — something that currents of warming water, already circulating around the Antarctic coast, could do — then water could flow beneath the inland ice and lubricate its slide into the ocean.

A new study led by the University of Texas Institute for Geophysics has found that wind over the ocean off the coast of East Antarctica causes warm, deep waters to upwell, circulate under Totten Ice Shelf, and melt the fringes of the East Antarctic ice sheet from below.

Along one string of sites, or «stations,» that stretches from Antarctica to the southern Indian Ocean, researchers have tracked the conditions of AABW — a layer of profoundly cold water less than 0 °C (it stays liquid because of its salt content, or salinity) that moves through the abyssal ocean, mixing with warmer waters as it circulates around the globe in the Southern Ocean and northward into all three of the major ocean baOcean, researchers have tracked the conditions of AABW — a layer of profoundly cold water less than 0 °C (it stays liquid because of its salt content, or salinity) that moves through the abyssal ocean, mixing with warmer waters as it circulates around the globe in the Southern Ocean and northward into all three of the major ocean baocean, mixing with warmer waters as it circulates around the globe in the Southern Ocean and northward into all three of the major ocean baOcean and northward into all three of the major ocean baocean basins.

Arrays monitor circulating currents in the Atlantic Ocean, in which warm shallow waters move north (red), while cold deep waters move south (blue).

Because such deep seawater circulates from the coast of Antarctica, this deep - water warming implies that the Southern Ocean drove the last major climate change.

Since deeper waters will be warmer, there is a possible link to the global ocean circulating currents that results in warmer water in polar regions.

That'd be a hint that warm water could indeed get in under the icecap once the edges melt off, unblocking the deep channels and allowing water to circulate in and out from the southern ocean — wouldn't it?

One of the consequences could be a disruption of major ocean currents, particularly those flowing north and south, circulating warm water from the equator to polar regions and cold water from the poles back to the equator.

Over the past fifty million years, earth cooled because land moved, ocean currents changed, more and more warm water was circulated in higher Latitudes and Polar Oceans to melt more and more sea ice to support more and more snowfall to promote more and more ice on land.

This is the first extensive survey of one of these fjords that shows us how these warm waters circulate and how vigorous the circulation is... changes in the large - scale ocean circulation of the North Atlantic are propagating to the glaciers very quickly — not in a matter of years, but a matter of months.

Essentially, the study proposes that climate feedbacks could work completely and totally against us, as warm water becomes trapped on top of a layer of colder Antarctic waters due to a near total shutdown in the global ocean conveyor belt, which circulates ocean heat from the coast of Antarctica to Newfoundland.