Sentences with phrase «into ice shelves»

Essentially, a warming ocean will turn more of the Antarctic ice sheet into ice shelves, which the ocean will then melt from the bottom up.

Nearly all ice shelves are in Antarctica, where most of the ice discharged seaward flows into ice shelves.

The margins usually slope more steeply, and most ice is discharged through fast - flowing ice streams or outlet glaciers, in some cases into the sea or into ice shelves floating on the sea.

Although Tyler's team pulled its instruments out of the borehole in January 2013, the mooring that held the cable in place remains frozen into the ice shelf, he says — and the team hopes they can get back to it for a longer term monitoring project.

«Every single glacier that flowed into an ice shelf, when the shelf was removed, suddenly accelerated,» Scambos says.

In 2014, a crack that had been slowly growing into the ice shelf for decades suddenly started to spread northwards, creating the nascent iceberg.

The crack remained dormant for decades, stuck in a section of the ice shelf called a suture zone, an area where glaciers flowing into the ice shelf come together.

Previous studies have attributed those undersea channels — which measure between 1 and 2 km wide and extend up into the ice shelf as much as 400 meters — solely to the melting action of seawater.

Schematic cartoon of a glacier flowing into an ice shelf, showing the grounding line and calving at the ice cliff at the edge of the ice shelf.

By improving our grasp on the processes that lead an iceberg to break up, scientists hope to gain insight into ice shelf disintegration.

The glaciers that fed into the ice shelf speed up, flowing more quickly out to sea....»

Not exact matches

FIX API connectivity is starting to break the ice shelf in fixed income and push a wave of new trading platforms and data & analytic solutions into the market.

They can be stored ambient on the shelf before being frozen for a party or dropped into an ice bucket for a garden party or barbeque.

You know when the chocolate magic shell first appeared on grocery store shelves and if you were, say, a middle schooler pretty into ice cream sundaes, it was basically the best invention to have ever occurred?

ROSS ICE SHELF, ANTARCTICA — Any day now, a team of 40 scientists and support personnel expects to begin shoveling ice and snow into a melting bin.

Ice shelves keep glaciers from flowing into the ocean.

When it's cold enough to form ice shelves that extend over the Antarctic land mass and into the ocean, much of what drops to the seafloor is sand and gravel that the glacier has picked up on its slow march from the continent's ice cap.

Scientists still do not know what triggers the breakup of an ice shelf or when future ones will occur, so they struggle to estimate how quickly glaciers will dump their ice into the ocean and therefore how much sea level will rise.

This iceberg, named UK211, had survived for three years since calving off the Larsen C ice shelf 385 kilometers south, but now it was drifting into warm climates north of the peninsula.

Scientists have drilled into one of the most isolated depths in all of the world's oceans: a hidden shore of Antarctica that sits under 740 meters of ice, hundreds of kilometers in from the sea edge of a major Antarctic ice shelf.

The shelves act as a buttress to the «grounded» ice, helping slow the flow of the ice sheet's glaciers into the ocean.

In aerial photographs taken before Prince Gustav disappeared, Sjögren Glacier was a smooth - surfaced plume that sloped gradually from the mainland far out into the fjord, inching toward the ice shelf and sea.

Changes in mass, rather than height, control how the ice shelves and associated glaciers flow into the ocean,» Paolo said.

«We don't currently know what changed in 2014 that allowed this rift to push through the suture zone and propagate into the main body of the ice shelf,» said Dan McGrath, a glaciologist at Colorado State University who has been studying the Larsen C ice shelf since 2008.

A study published in 2011 by Scambos, Truffer and Pettit found that one glacier continues to accelerate even 15 years after losing its ice shelf: Röhss Glacier (which used to flow into the Prince Gustav ice shelf) has now reached nine times its former speed.

All told, as warm summers have reached farther down from the bottom of South America into the northernmost section of the Antarctic Peninsula, four ice shelves on the eastern side of the peninsula, including Larsen A, have collapsed in a striking pattern from the northern tip southward toward the Antarctic mainland.

When the researchers took density of snow into account, they found that ice shelves lost about five times more ice by submarine melting than they gained from new surface snowpack.

«Many people look at this ice - shelf data and will fit a straight line to the data, but we're looking at all the wiggles that go into that linear fit, and trying to understand the processes causing them,» said Fricker, who was Paolo's PhD adviser at the time the study was conceived.

The Antarctic ice sheet, the thick layer of ice covering much of the continent, is anchored in place by its floating fringe, shelves of ice that jut out into the surrounding ocean.

What matters for sea - level rise is the addition of ice from land into the ocean, however it's the ice shelves that hold off the flow of grounded ice toward the ocean.

As the climate changes, Southern Ocean upwelling may increase, which could accelerate ice shelf melting, release more carbon into the atmosphere and limit the ocean's ability to absorb heat and carbon dioxide from the atmosphere.

Seven summers later, in 2002, the Larsen B ice shelf, just south of Larsen A and 55 times larger than Manhattan, disintegrated into hundreds of shards the size of skyscrapers.

The team spent three weeks hopping by plane between the Scar Inlet ice shelf and the glaciers feeding into it.

Dr Gudmundsson said: «Although floating ice shelves have only a modest impact on of sea - level rise, ice from Antarctica's interior can discharge into the ocean when they collapse.

When floating ice shelves disintegrate, they reduce the resistance to glacial flow and thus allow the grounded glaciers they were buttressing to significantly dump more ice into the ocean, raising sea levels.

Current simulations suggest that the truncated ice shelf will react to this change by flowing faster into the ocean, which will also lead to more calving.

Since ice shelves act like plugs, removing them lets inland glaciers flow faster into the ocean, and that will raise sea levels.

Warm ocean waters, driven inland by winds, are undercutting an ice shelf that holds back a vast glacier from sliding into the ocean, researchers report November 1 in Science Advances.

«Today, the Pine Island and Thwaites glaciers are grounded in a very precarious position, and major retreat may already be happening, caused primarily by warm waters melting from below the ice shelves that jut out from each glacier into the sea,» said Matthew Wise of Cambridge's Scott Polar Research Institute, and the study's first author.

At the grounding line, the ice detaches from the bedrock and juts out into the water as a kind of floating ledge, or ice shelf, which helps to stabilize the glacier and hold back the flow of ice behind it.

This refers to the area in which the ice still touches the ground and merges into floating shelf ice.

Nonetheless, Khazendar and his colleagues say that two of the glaciers flowing into Larsen C have already begun to accelerate as the ice shelf has weakened.

All told, if the eastern and western Antarctic ice shelves were to melt completely, they would raise sea levels by as much as 230 feet (70 meters); the collapse of smaller shelves like Larsen B has sped up the flow of glaciers behind them into the sea, contributing to the creeping up of high tide levels around the world.

Scientists who have been monitoring the 175 - kilometre rift in the Larsen C ice shelf say that it could reach the ocean within weeks or months, releasing an iceberg twice the size of Luxembourg into the Weddell Sea.

That makes it vulnerable to collapse, because seawater can flow in underneath it and transform its edge into a floating ice shelf like Larsen B, which might then break up, freeing the ice behind it.

They were using a camera attached to a remote - controlled drill to explore the underside of the Ross Ice Shelf when they discovered large numbers of the white anemones, which they christened Edwardsiella andrillae, burrowed inside the ice shelf with only their tentacles dangling into the watIce Shelf when they discovered large numbers of the white anemones, which they christened Edwardsiella andrillae, burrowed inside the ice shelf with only their tentacles dangling into the watice shelf with only their tentacles dangling into the water.

CLIMATE CALAMITIES As ice shelves on the Southern Antarctic Peninsula weaken, glaciers flow faster into the sea.

Ingeniously beating swords into ploughshares, Australian scientists have adapted an ageing British torpedo to measure the thickness of the Antarctic ice shelf as it zips along under the ice.

A robot surveying the underside of Antarctica's Ross Ice Shelf has made a startling discovery: Clinging upside - down from crannies in the ice shelf with their tentacles dangling into the icy water were thousands and thousands of tiny sea anemonIce Shelf has made a startling discovery: Clinging upside - down from crannies in the ice shelf with their tentacles dangling into the icy water were thousands and thousands of tiny sea anemonice shelf with their tentacles dangling into the icy water were thousands and thousands of tiny sea anemones.

The researchers believe that the interaction of the ocean beneath the ice shelf and melting of the ice shelf is an important variable that should be incorporated into the sea level rise models of global warming.