Sentences with phrase «leading edge of an ice»

Further, these areas of open water do not occur near the leading edge of the ice in warm water, they only occur near land in previously frozen areas where air and water are cold enough to re-freeze the open water.

Lead author of the study Joseph MacGregor said in a statement: «Typically, the leading edge of an ice shelf moves forward steadily over time, retreating episodically when an iceberg calves off (breaks off and floats out to sea), but that is not what happened along the shear margins.»

Not exact matches

Mount Sidley, at the leading edge of the Executive Committee Range in Marie Byrd Land, is the last volcano in the chain that rises above the surface of the ice.

These droplets are still liquid below 0 °C, but as they strike the wing or tail's leading edge, they flow over it and freeze, forming streaks of «glaze ice» that disrupt airflow.

«Most ice cores are collected from the middle of the ice sheet where it rarely ever melts, or on the ice sheet edge where the meltwater flows into the ocean,» Karina Graeter, the lead author of the study as a graduate student in Dartmouth's Department of Earth Sciences, said in a statement.

The researchers led by the University of Wollongong's (UOW) professor Allen Nutman discovered 3.7 billion - year - old stromatolite fossils in the world's oldest sedimentary rocks located in the Isua Greenstone Belt along the edge of Greenland's ice cap.

The exhibition includes one of Thiel's largest works to date, a 30 - foot long, five - panel photograph of the leading edge of the Perito Moreno glacier in Los Glaciares National Park, which is part of the Southern Patagonian Ice Field, the third largest ice cap in the worIce Field, the third largest ice cap in the worice cap in the world.

** The cause of the freshening is the next challenge for us to work out, the leading hypothesis at the moment is that the water is becoming fresher because the ice around the edges of Antarctica is melting more rapidly, ** Dr Rintoul said.

(He was using a board to test the edge of a «lead» in the ice exposing water that is 29 degrees Fahrenheit and about 14,000 feet deep.)

So, as the leading edge melts, this deformation and filling would be first observed as a thinning of the sheet and, in particular, the trunk or main ice stream channel, as well as an acceleration of the stream.

As I have little faith in nature producing stright lines: — RRB -, what are the chances that what we are seeing is the result of the leading edge of a half cycle of some long period waveform with a low point around the Little Ice Age and the high point being about now?

But without the ice shelves to impede the flow of glacial ice, typically moving 400 — 900 meters a year, the flow of ice from the continent could accelerate, leading to a thinning of the ice sheet on the edges of the Antarctic continent.

Generally yes, but there has been a lot of new information learned since the IPCC Third Assessment Report (e.g., on trends in hurricane intensity, the accelerated melting back of Arctic sea ice, the intensifying deterioration of the edges of the Greenland Ice Sheet, etc.) and Gore's presentation of the science has been updated to account for these, drawing from what are the really highly reviewed and high quality papers by leading scientisice, the intensifying deterioration of the edges of the Greenland Ice Sheet, etc.) and Gore's presentation of the science has been updated to account for these, drawing from what are the really highly reviewed and high quality papers by leading scientisIce Sheet, etc.) and Gore's presentation of the science has been updated to account for these, drawing from what are the really highly reviewed and high quality papers by leading scientists.

Stresses from ice flowing over bedrock or around islands causes fracturing, and at the front edge of the ice this fracturing leads to iceberg calving.

While Arctic ice is melting at a record pace, a team of NASA - led researchers say they can explain why Antarctic sea ice has been edging in the opposite direction.

Eventually, the leading edge forms a cantilevered ice shelf that floats on the water but remains attached to the anchored part of the ice sheet.