Sentences with phrase «of ice sheet stability»

Not exact matches

Two studies open deep history of Greenland's ice sheet, and raise new questions about its stability.»

In fact, learning about the lakes and rivers could shed light (albeit from a very dark place) on weighty matters ranging from ice - sheet stability — how much do the lakes enhance the flow of ice toward the sea?

It appears global warming is replicating conditions that, in the past, triggered significant shifts in the stability of the Antarctic ice sheet.

The research team found the evidence confirming the stability of the East Antarctic ice sheet at an altitude of 6,200 feet, about 400 miles from the South Pole at the edge of what's called the polar plateau, a flat, high surface of the ice sheet covering much of East Antarctica.

These findings suggest that Greenland's glaciers have been experiencing increasing ice loss for at least three decades — a result that may reinforce scientists» concerns over the stability of the melting ice sheet.

The long - term stability of the massive ice sheets of Antarctica, which have the potential to raise sea levels by hundreds of meters, has been called into question with the discovery of fast - moving rivers of water sliding beneath their base.

I would like to echo Mr. Edmonds inquiry as to the stability of the Pine Island and Thwaites glaciers which seem to connect directly to the Byrd Subpolar Basin, where the ice sheets are grounded far below sea level.

The project aims to improve understanding of snow melt on ice shelves, floating extensions of the massive inland ice sheet which stabilize ice loss, and how melt will impact on ice shelf stability and sea level.

Ice shelves are important, because they play a role in the stability of the Antarctic Ice Sheet and the ice sheet's mass balance, and are important for ocean stratification and bottom water formation; this helps drive the world's thermohaline circulatiIce shelves are important, because they play a role in the stability of the Antarctic Ice Sheet and the ice sheet's mass balance, and are important for ocean stratification and bottom water formation; this helps drive the world's thermohaline circulatiIce Sheet and the ice sheet's mass balance, and are important for ocean stratification and bottom water formation; this helps drive the world's thermohaline circulaSheet and the ice sheet's mass balance, and are important for ocean stratification and bottom water formation; this helps drive the world's thermohaline circulatiice sheet's mass balance, and are important for ocean stratification and bottom water formation; this helps drive the world's thermohaline circulasheet's mass balance, and are important for ocean stratification and bottom water formation; this helps drive the world's thermohaline circulation.

Currently, the major focus of this thread is on reconstructing past sea - level changes and understanding the implications of these changes for ice - sheet stability and for ocean dynamics.

Geologic shoreline evidence has been interpreted as indicating a rapid sea level rise of a few meters late in the Eemian to a peak about 9 meters above present, suggesting the possibility that a critical stability threshold was crossed that caused polar ice sheet collapse [84]--[85], although there remains debate within the research community about this specific history and interpretation.

Thus the entire 3 — 4 meters of global sea level contained in that ice sheet may be vulnerable to rapid disintegration, although arguments for stability of even this marine ice sheet have been made [94].

The potential for unstable ice sheet disintegration is controversial, with opinion varying from likely stability of even the (marine) West Antarctic ice sheet [94] to likely rapid non-linear response extending up to multi-meter sea level rise [97]--[98].

I would like to echo Mr. Edmonds inquiry as to the stability of the Pine Island and Thwaites glaciers which seem to connect directly to the Byrd Subpolar Basin, where the ice sheets are grounded far below sea level.

Polar amplication is of global concern due to the potential effects of future warming on ice sheet stability and, therefore, global sea level (see Sections 5.6.1, 5.8.1 and Chapter 13) and carbon cycle feedbacks such as those linked with permafrost melting (see Chapter 6)... The magnitude of polar amplification depends on the relative strength and duration of different climate feedbacks, which determine the transient and equilibrium response to external forcings.

The «details» are important and interesting, and may in fact be of key importance to society (rather than just of academic interest... for example the stability of the Greenland ice sheet), but they are called details for a reason.

Also, the stability of the ice shelves is doubtful and without them the ice sheet would probably flow much more rapidly into the sea, finding a new equilibrium after losing a great deal of mass.

Burning all fossil fuels, if the CO2 is released into the air, would destroy creation, the planet with its animal and plant life as it has existed for the past several thousand years, the time of civilization, the Holocene, the period of relative climate stability, warm enough to keep ice sheets off North America and Eurasia, but cool enough to maintain Antarctic and Greenland ice, and thus a stable sea level.

In the case of the East Antarctica Ice - Sheet (EAIS), the situation has been less clear: thinning of ice shelves and acceleration of glaciers have been described in some areas but it has to date given an impression of relative stabiliIce - Sheet (EAIS), the situation has been less clear: thinning of ice shelves and acceleration of glaciers have been described in some areas but it has to date given an impression of relative stabiliice shelves and acceleration of glaciers have been described in some areas but it has to date given an impression of relative stability.

NASA hosted a media teleconference to discuss new research results on the stability of the West Antarctic Ice Sheet and its potential contribution to future sea level rise.

In addition we have coupled the ice model Sicopolis to our Earth System model CLIMBER - 2 to study the stability of the Greenland ice sheet in past and future climate changes.

That is to say, decisions over the next two or three decades affecting this larger context may influence the climate of 2100 and beyond in ways that are at least as significant as the implications of even the major current scientific uncertainties, like climate sensitivity and long - term ice - sheet stability.

Insight into past ice - sheet behaviour also will aid predictions of future ice - sheet stability.

The potential for unstable ice sheet disintegration is controversial, with opinion varying from likely stability of even the (marine) West Antarctic ice sheet [94] to likely rapid non-linear response extending up to multi-meter sea level rise [97]--[98].

Scientific Discipline Cryosphere Speaker Eric Rignot (NASA Jet Propulsion Laboratory) Abstract Modern views of ice sheets provided by satellites, airborne surveys, in situ data and paleoclimate records while transformative of glaciology have not fundamentally changed concerns about ice sheet stability and collapse that emerged in the 1970's.

Despite the stability of those ice sheets in the Holocene, there is evidence that sea level was much more variable during the Eemian, when we estimate the peak global temperature was only +1.0 °C warmer than in the first decade of the twenty - first century.

Filed under headings such as» It's not that bad», the app answers questions on topics ranging from the stability of ice sheets to errors in the IPCC's fourth assessment report.

Coupling of CO2 and ice sheet stability over major climate transitions of the last 20 million years

«There's been a lot of speculation about the stability of marine ice sheets, and many scientists suspected that this kind of behavior is under way,» Ian Joughin, a glaciologist at the University of Washington in Seattle, said in a news release about one of the studies published Monday.

This raises new concern about the overall stability of the West Antarctic Ice Sheet, the collapse of which would trigger another five to six metres [approximately 16 to 20 feet] of sea level rise.

Ice shelves are perhaps the most important part of the Antarctic ice sheet for its overall stabiliIce shelves are perhaps the most important part of the Antarctic ice sheet for its overall stabiliice sheet for its overall stability.

The long - term stability of the massive ice sheets of Antarctica, which have the potential to raise sea levels by hundreds of meters, has been called into question with the discovery of fast - moving rivers of water sliding beneath their base.

My work also concerns past, present, and future stability of the West Antarctic Ice Sheet, as well as palaeoclimate - archaeologic links in the high Andes.