Sentences with phrase «water under ice shelves»

«The new data set will allow us to check if our ocean models can correctly represent changes in the flow of warm water under ice shelves,» he added.

This image shows the path of the Kelvin waves that interact with the Antarctic Circumpolar Current and push warmer waters under the ice shelves of the West Antarctic Peninsula.

In the study, the researchers use an ice - ocean model created in Bremerhaven to decode the oceanographic and physical processes that could lead to an irreversible inflow of warm water under the ice shelf — a development that has already been observed in the Amundsen Sea.

Not exact matches

They found that western Antarctica has recently seen warmer, saltier water being driven under the shelf — the part of the ice sheet that sticks out over the ocean (Science, doi.org/xkx).

For example, the current that circles Antarctica distributes cold water throughout the globe, influencing regional currents and regional weather, while the krill that thrive under Antarctic ice shelves feed animals as large as the blue whale.

The glacier is currently experiencing significant acceleration, thinning and retreat that is thought to be caused by «ocean - driven» melting; an increase in warm ocean water finding its way under the ice shelf.

They are motivated by the humbling realization that our knowledge of undersea life as a whole is only slightly less sketchy than our knowledge of life under those Antarctic ice shelves: Even where the water is not covered by ice, its sheer volume — not to mention the difficulty of seeing and moving through it — means that it is nearly all aqua incognita.

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-?)

In contrast, the warm water that is under the floating ice (ice shelf) is a persistent source of heat under just the right place.

How does the heat from erupting volcanoes under the West Antarctic Peninsula's ice sheets and surrounding waters affect ice - shelf formation and break - up?

The extent to which this will happen in the future depends, crucially, on how warm the sea - water lying under the ice - shelves is.

This out - flow of water from under the ice pulls in more deep water to melt more ice from the bottom of the ice shelf.

Their mission: find vulnerabilities where warmer (but still near freezing) water from the deep ocean may be seeping in under the ice shelf and melting it from below.

She suggests that future shelf stability studies should consider the role of the ocean's influence, like the effects of warm water pulses flowing under the Cosgrove Ice Shelf.

But deep water production by convection may be less, depending on how much NADW is Arctic in origin and how much is simply recirculated Antarctic bottom water (extremely dense water, formed as brine under the sea ice around polynas offshore of Antarctica and sliding down the continental shelf into the depths without much mixing, creates a giant pool of dense water extending all the way up the bottom of the Atlantic to about 60 ° N).

Large regions of the seabed around the Greenland and Antarctic ice sheets are undersampled for water depth, including most regions under ice shelves.

The large floating ice shelves are susceptible to bottom melting but, except for Petermann Glacier, we have no observations of the process or that more warm water is penetrating under these ice shelves.

«Deep channels under the ice allow warm water to flow all the way to the grounding line, where the ice shelf meets the bedrock,» said Michael Studinger, a researcher with the mission.

Colder surface ocean waters decreased the rate of melting under the Pine Island Glacier ice shelf in 2012.

Holland says that increased pressure gradients and strengthened westerly winds may also account for the influx of warm water under the West Antarctic ice shelves.

Chloride = 31,000 p.p.m. (de-icing agents) trapped under the ice, is causing the bottom of the ice shelf to thaw, resulting in continuous thinning and acceleration of glacial melt (under water glacier cutting).

put this on the back shelf right next to global warming melted the ice cap and NYC is under a foot of water