ice sheet

Simply, if glaciologists do not know what goes on at the bottom of the ice sheets, no one can predict how ice sheets will change with time.

Large ice sheets did not exist across the north and south polar regions as they do today.

If either of these ice sheets were to melt significantly, sea levels could rise by an order of meters (many feet), drowning coastal cities.

The state of the ice sheets during the Pliocene is not well known, but it is thought that sea level ranged up to 80 feet higher than today.

In Arctic waters, ice sheets bog and break against one another. It's the setting for an unusual heavyweight competition - tusk wrestling.

If it is that the ice sheets [are] responding to the ocean [temperature], that change is going to persist for decades to come.

Perhaps the greatest geological hazards during climate change will be the result of melting ice sheets.

"The take-home message of this work is that [the bottom of ice sheets] can no longer be ignored" in the models, he says.

It's all too common these days to see pictures of polar bears trapped on rapidly diminishing ice sheets.

Yet another tipping point could come as ice sheets shrink and the polar caps start absorbing rather than reflecting energy from the sun.

IT is a scene increasingly shown in Hollywood films, the ice sheets in the poles are melting and the world is in danger of flooding.

At the height of the most recent Ice Age, about 35, 000 years ago, much of the world's water was locked up in vast continental ice sheets.

Thinning penetrated deep into the interior of the ice sheets and continues to spread as ice shelves melt into the sea.

It's evident that the ice sheets have gone through multiple stages of growth and retreat over the course of the Quaternary.

Joe through the mountains, ice sheets and major cities in the world, the last before he arrived home!

For the response of the ice sheets to a still warmer world, older periods in geologic time offer parallels.

Still undetermined, Hu says, is exactly where and how the warming waters interact with the ice sheets.

A mirror to a cloudy sky, Lake Crescent was created by the gouging of retreating Canadian ice sheets.

Scientists think the Mars glaciers may have been left as remnants when regional ice sheets retreated.

Rising temperatures are melting glaciers and ice sheets, as well as warming the oceans directly, which causes them to expand.

Measurements taken over the south pole reflect changes in the mass of the Antarctic ice sheets.

The northern hemisphere had massive growing ice sheets. New York City, Chicago, Seattle, all under a sheet of ice.

The ice sheets that cover Greenland and Antarctica now are remnants of this and previous ice ages.

Polar ice sheets to climate: located in Greenland, Antarctica and the Arctic Ocean on a number of islands.

That's a problem: It couldn't have warmed Earth enough to keep the seas from becoming permanent ice sheets.

During winter seasons, ice sheets formed in Bohai Bay will impose strong impact and result in strong vibration on the platform.

Why are the ice sheets descending into the oceans on Antarctica melting?

This includes mountain glaciers, ice sheets covering West Antarctica and Greenland, and Arctic sea ice.

A relic of the last Ice Age, this is one of three great ice sheets in the world.

Secondly, water from melting glaciers and the ice sheets of Greenland and the Antarctica would also add water to the ocean.

The image here illustrates how these pockets and streams of warm meltwater permeate glaciers and ice sheets.

Narwhals brave the dangerous, shifting ice sheets to search for cod, but Inuit hunters brave them for narwhals.

Much of the northern lands were covered by vast ice sheets that reached a thickness of as much as 3 kilometers.

Fewer than 460, 000 years ago, meltwater from retreating ice sheets topped the land bridge and carved out the Channel.

Glaciers and Ice sheets cover around 10 percent of the land area on Earth.

The melting of glaciers, ice caps and polar ice sheets on land, however, has the potential to account for much more.

The Pliocene ended around three million years ago with the onset of large ice sheets in the Northern Hemisphere.

How will changes in glaciers, ice sheets, snow cover and sea ice affect the global Earth system?

the ice sheets freeze over again. The Arctic becomes a nearly sunless land for eight months.

"Ice sheets are melting faster, and sea level rise is a huge threat unless we stop the warming, " Rahmsdorf told the press.

Because of various uncertainties, its calculations excluded the melting of the Greenland and West Antarctica ice sheets.

It could "render the loss of ice sheets and the accompanying sea-level rise unstoppable beyond a certain amount of warming. "

The ice sheets are like very slow rivers, with ice flowing down "ice streams" .

Ice sheets are broad glaciers that blanket whole regions.

Polar bears roam the Arctic ice sheets and swim in that region's coastal waters.

Greenland and Antarctica hold the Earth's last remaining ice sheets.

Ice sheets are heavy, and when not supported, they crack off.

They also found this discrepancy disappeared around 19, 000 years ago, which is also when the ice sheets began to melt.

But the big worry is that their loss will allow ice sheets on land to move faster, adding extra water to the seas.

Recent estimates suggest the Greenland and Antarctic ice sheets add another 1. 3 millimeters per year to sea level.

When the vast3 ice sheets crack, 4 sunlight pours into the icy waters, and algae cover the edges of the ice.

But what if the ice sheets are melting? Can anyone save us?

This would start the formation of ice sheets such as those that several times have flowed south across North America and Eurasia.

We need to do a lot more work to build better models of how ice sheets behave in the real world.

Argument exists over whether slowdowns are primarily wind-driven, or could be caused by an influx of fresh water from melting ice sheets.

Inversion of the Surface Properties of Ice Sheets From Satellite Microwave Data

the magnitude of those rises , though , is still uncertain given difficulties in modelling the greenland and antarctic ice sheets

Modeling of the northern hemisphere ice sheets during the last glacial cycle and glaciological sensitivity

But -- importantly -- it does not include the ice sheets of Antarctica and Greenland, where 99 percent of Earth's fresh water is locked up.

The influx of fresh water from shrinking ice sheets also causes the planet to pitch over.

Precision and Accuracy of Satellite Radar and Laser Altimeter Data Over the Continental Ice Sheets

And Beyond the margins of the ice sheets, climatic oscillations affected most of the rest of the world;

Displacement response analysis of Songhua River highway bridge under action of moving ice sheets

The WWF says the melting of the Greenland and West Antarctica ice sheets will cause sea levels to rise more than one meter by 2100

Progress in the Studies of Heavy Metals in Snow and Ice in Polar Ice Sheets and Alpine Glaciers

Global budget of water isotopes inferred from polar ice sheets

Canada Columbia ice sheets and the majesty of the Rocky Mountains, beautiful lake Lewis is where I want to go,