Sentences with phrase «marine ice»

This is because it is grounded below sea level, and marine ice sheets such as these are susceptible to rapid melting at their base.

This exposed tall ice «cliffs» at their margin with an unstable height, and resulted in rapid retreat of the glaciers from marine ice cliff instability between 12,000 and 11,000 years ago.

Your reference list does not do justice to the early work that identified this issue of potential marine ice instability that could lead to collapse.

Another process was marine ice cliff instability, arising from the relative weakness of ice.

The biggest area of marine ice in the east is likely to be released despite the cold air temperatures, confirming the worries about the effect of melting Antarctic ice on global sea levels.

Retreat of Pine Island Glacier controlled by marine ice - sheet instability.

It's a positive feedback cycle, a viscious loop that means that future recession of the ice stream is inevitable (see Marine Ice Sheet Instability and previous post).

The Sea Ice Research Team collected a comprehensive dataset on the physics of the ice, ocean and atmosphere in the area and these data will contribute to the understanding of these events and assist Canada in preparing for climate change driven increases in marine ice hazards.

«With marine ice cliff instability, sea - level rise for the next century is potentially much larger than we thought it might be five or 10 years ago,» Poinar says.

The basin is the largest region of marine ice on rocky ground in East Antarctica.

This process is called Marine Ice Sheet Instability4.

They did not account for modern observations in calibrating marine ice - sheet instability, or probe rates of ice - cliff collapse as fast as the fastest currently seen in Greenland.

The more dynamic picture in the new simulations suggests that the rate of change in the first half of this century — which does not involve a significant contribution from processes like marine ice - cliff instability, or hydrofracturing — is essentially uncorrelated with the rate of change later in the century.

Joughin I, Smith BE, Medley B. Marine Ice Sheet Collapse Potentially Underway for the Thwaites Glacier Basin, West Antarctica.

Although it was not a true ice age, the term was introduced Marine ice sheet instability hypothesis and the threat of a collapse of the West Antarctic Ice Sheet.

Relatively warm marine ice fills the gaps between the glaciers and sews the ice shelf together.

It is the only marine ice sheet to have survived beyond the last ice age, and just as scientists predicted 30 years ago, the parts of it that are shrinking are those that are raked by sea currents.

This work is not unprecedented, and follows decades of work and several recent papers discussing marine ice sheet instability in West Antarctica (e.g., references 4, 5, 6).

A recent high - profile article stirred debate about the threat of a process known as marine ice - sheet instability in the Antarctic.

Hindmarsh, R.C.A., and A. Jenkins, Centurial - millenial ice - rafted debris pulses from ablating marine ice sheets., Geophysical Research Letters, 28 (12), 2477 - 2480, 2001.

The impact of marine ice depends on how much thickening or thinning has been occurring, and whether this is cyclical or a progressive event.

If Larsen C Ice Shelf has been thickening by freeze on of softer marine ice, this could stabilise the ice shelf and counteract the impact of the calving event on altering the stress regime on the ice shelf.

My research has a particular focus on primary producers in the Arctic marine ice - covered ecosystem, which include sea ice algae, ice melt water (brackish) flora and phytoplankton.

Ice shelves are therefore composed of ice derived from snowfall on land, but they also accrete marine ice from below [2].

This is covered in more detail under Marine Ice Sheet Instability.

Goodman, JC and Pierrehumbert RT 2003: Glacial flow of floating marine ice in Snowball Earth.

The decline of sea levels close to the grounding line of receding marine ice sheet has major effects on the ice sheets.

Joughin, I. & Vaughan, D. G.,» Marine ice beneath the Filchner - Ronne Ice Shelf: A comparison of estimated thickness distributions», Annals of Glaciology, in press, 2005.

Retreat of Pine Island Glacier controlled by marine ice - sheet instability, Nature Climate Change, 4, 117 — 121 doi: 10.1038 / nclimate2094

Grounding line recession here could be irreversible, leading to rapid glacier thinning and recession, and sea level rise — see Marine Ice Sheet Instability.

Their analysis showed that these smaller icebergs were released due to a process called marine ice - cliff instability (MICI).

They did not account for modern observations in calibrating marine ice - sheet instability, or probe rates of ice - cliff collapse as fast as the fastest currently seen in Greenland.

The more dynamic picture in the new simulations suggests that the rate of change in the first half of this century — which does not involve a significant contribution from processes like marine ice - cliff instability, or hydrofracturing — is essentially uncorrelated with the rate of change later in the century.

Joughin, I., Smith, B. E. & Medley, B. Marine ice sheet collapse potentially under way for the Thwaites Glacier basin, West Antarctica.

Linking in the physical model with marine ice - cliff instability raises that range to 4 to 7 feet,» Kopp said.

The basin is the largest region of marine ice on rocky ground in East Antarctica.

Marine ice in Larsen Ice Shelf.

See Marine Ice Sheet Instability for more information.

«Evidence of Marine Ice - Cliff Instability in Pine Island Bay from Iceberg - Keel Plough Marks.»

The glacier appears to be collapsing due to marine ice - sheet instability.

«By contrast, marine ice - cliff instability doesn't have much effect if we meet the Paris Agreement emissions goal.

The first of these pathways, marine ice sheet instability, has been studied for decades, but the second, marine ice cliff instability, has only recently been considered as an important contributor to future sea level change.

A second week of delay meant our research objectives just could not be safely achieved — the challenge for us all was that the marine ice hazards were exceedingly difficult for the maritime industry, the CCG, and science,» says Dr. David Barber, Expedition Chief Scientist and BaySys Scientific Lead.

While all discussion of marine ice - sheet instability is shrouded in tremendous uncertainty, one thing is clear: whatever happens in far - off West Antarctica will have more profound impacts in Scandinavia than in nearby Australia.

Hindmarsh, R.C.A., and E. Le Meur, Dynamical processes involved in the retreat of marine ice sheets, Journal of Glaciology, in press.