Sentences with phrase «b ice shelf»

The polar experts, studying the effects of global warming on the icy continent that is devoted to science, fear a repeat of the 2002 collapse of the Larsen B ice shelf.

The Antarctic Peninsula, site of the now - defunct Larsen - B ice shelf, has warmed substantially.

In 2002, the Larsen B ice shelf collapsed; in 2003, the World Glacial Monitoring Service reported that «The recent increase in the rates of ice loss over reduced glacier surface areas as compared with earlier losses related to larger surface areas (cf. the thorough revision of available data by Dyurgerov, 2002) becomes even more pronounced and leaves no doubt about the accelerating change in climatic conditions.»

The Larsen B ice shelf, for example, broke up in 2002 in response to coastal warming, after having survived for more than 12,000 years.

«One of the satellite's first observations after its launch on March 1, 2002 was the break - up of a main section of the Larsen B ice shelf in Antarctica.

The break - up of the adjacent Larsen B ice shelf in early 2002 has been attributed to the effects of global warming.

It's already melting it: for example, by early 2002 60 % of theLarsen B ice shelf had disappeared compared with 1995.

The researchers found that stronger westerly winds in the northern Antarctic Peninsula, fueled primarily by human - induced climate change, were responsible for the dramatic summer warming that led to the retreat and collapse of the Larsen B ice shelf.

A structural glaciological analysis of the 2002 Larsen B ice shelf collapse.

Accelerated ice discharge from the Antarctic Peninsula following the collapse of Larsen B ice shelf.

Causes of pre-collapse changes of the Larsen B ice shelf: Numerical modelling and assimilation of satellite observations.

So when the northern part of the Larsen B ice shelf collapsed into the sea in March 2002, it was not a total surprise.

The trough was unveiled in the 2002 Larsen B ice shelf collapse.

Accelerated ice discharge from the Antarctic Peninsula following the collapse of Larsen B ice shelf E. Rignot, G. Casassa, P. Gogineni, W. Krabill, A. Rivera, and R. Thomas Geophysical Research Letters, Vol.

Leaving aside the collapse of the Larsen - B ice shelf and other ice shelves in Antarctica, is it too simplistic to expect that dramatic changes should be anticipated first in the Arctic because it is sea covered by a few meters of sea ice and therefore more susceptible to change, in comparison to Antarctica (which is obviously land covered by glacial ice up to several kilometers thick in places)?

Patterns of glacier response to disintegration of the Larsen B ice shelf, Antarctic Peninsula.

Stability of the Larsen B ice shelf on the Antarctic Peninsula during the Holocene epoch.

In hydrofracturing — the process implicated in the infamous break - up of the Larsen B ice shelf in 2002 — rainfall or meltwater that pools on the glacier's surface drains into cracks.

The Larsen B ice shelf in 2002 and the Wilkins ice shelf in 2008 both saw huge icebergs break off due largely to warming waters.

The Antarctic Peninsula, site of the now - defunct Larsen - B ice shelf, has warmed substantially.

Leaving aside the collapse of the Larsen - B ice shelf and other ice shelves in Antarctica, is it too simplistic to expect that dramatic changes should be anticipated first in the Arctic because it is sea covered by a few meters of sea ice and therefore more susceptible to change, in comparison to Antarctica (which is obviously land covered by glacial ice up to several kilometers thick in places)?

Analyzing declassified images from spy satellites, researchers discovered that the downhill flow of ice on Antarctica's Larsen B ice shelf was already accelerating as early as the 1960s and»70s.

While researchers quickly linked the breakup to lakes of meltwater that had accumulated on the so - called Larsen B ice shelf's upper surface and then wedged apart deep crevasses, they hadn't come up with a convincing explanation for what triggered the collapse.

Two years ago, Antarctica's Larsen B ice shelf collapsed over the course of 35 days; 3,250 square kilometers of shelf area — an area larger than that of Rhode Island — disintegrated.

Surface melting is thought to have played a big part in the break - up of the nearby Larsen B ice shelf in 2002.

They include the detachment of a 1,300 - square - mile chunk from the Larsen B ice shelf, the disintegration of giant ice shelves in the Prince Gustav Channel and the Larsen Inlet, and the disappearance of ice shelves known as Jones, Larsen A, Muller and Wordie.

• Data from NASA, European, and Canadian satellites show a continuing impact from the collapse of the Larsen B ice shelf in early 2002.

In 2002 a Rhode Island — sized hunk of the Larsen B ice shelf on the Antarctic Peninsula shattered into thousands of icebergs during the peninsula's hottest summer on record (SN: 3/30/02, p. 197).

Only floating sea ice (bottom right) remains of the collapsed Larsen B ice shelf off the Antarctic Peninsula.

The northern section of the Larsen B ice shelf — a thick slab of floating ice on the eastern side of the Antarctic Peninsula — has collapsed and separated from the continent, researchers report.

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.

Balco never reached Larsen B because of the ship's problems with sea ice, but Eugene Domack, the marine geologist who led the 2010 expedition, has already estimated the age of the Larsen B ice shelf.

More than once we had lost one of our four engines, and in 1987 a giant crack became persistently visible along the edge of the Larsen B ice shelf, off the Antarctic Peninsula — making it abundantly clear that an emergency landing would be no gentle touchdown.

The Larsen A and B ice shelves, which were situated further north on the Antarctic Peninsula, collapsed in 1995 and 2002, respectively.

We've seen this in glaciers after the loss of the Larsen A and B ice shelves (relatively small shelves on the Antarctic Peninsula), and we've seen a similar effect in Greenland, where the floating end of the glacier, and the fjord choked with calved bergs, could apparently perform a similar braking function, now lost for several rapidly - retreating glaciers.

This warmer water in turn, contributes to the melting of the ice shelves, several of which have disintegrated in recent years, including the Larsen A and B ice shelves.

Not exact matches

And over the past 18 months, two of the peninsula's largest ice shelves, the Larsen B and the Wilkins, have lost nearly 1,100 square miles of their total area, a sheet of ice about the size of Rhode IslandCK.

Large sections of the Larsen Ice Shelf A and B, and the Wilkins1 ice - shelf collapsed in a matter of days in 1995, 2002, and 2008, respectiveIce Shelf A and B, and the Wilkins1 ice - shelf collapsed in a matter of days in 1995, 2002, and 2008, respectiveice - shelf collapsed in a matter of days in 1995, 2002, and 2008, respectively.

But as the chain of ice shelf collapse pushes farther south from the peninsula's tip toward the mainland, to Larsen B and Scar Inlet, it is now entering the ominous realm of historical anomaly.

Next up, south of Larsen B and Scar Inlet, is the Larsen C ice shelf, which covers 49,000 square kilometers — twice as large as the state of Maryland, or about 820 Manhattans.

The last time a large iceberg calved from Antarctica was in 2002, when a chunk about half the size of the Larsen C iceberg calved from a different ice shelf on the Antarctic Peninsula, Larsen B (SN: 3/30/02, p. 197).

Those questions led Scambos to join a difficult but critical expedition in 2010 to a remnant of Larsen B called the Scar Inlet ice shelf.

Scientists have documented this transition before: In 2002, a Rhode Island sized chunk of ice calved from a different ice shelf, Larsen B, along the Antarctic Peninsula (SN: 10/18/14, p. 9).

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.

Scambos's group predicted the final Larsen B collapse using a model that looks at how much meltwater has pooled on the surface of the ice, and he now hopes to apply the model to bigger Antarctic ice shelves.

One response to this warming, scientists say, is the retreat of five ice shelves, including Larsen B. «Since [1998], warming on the peninsula has continued and we watched as piece - by - piece Larsen B has retreated,» David Vaughan of the British Antarctic Survey says.

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.

Now seafloor sediments reveal that Larsen B's grounding line had remained stable for thousands of years before the ice shelf's collapse.

Meltwater ponds formed on the surface of the Larsen B shelf and weakened the ice as they pushed downward, causing it to crack and splinter apart.

With Larsen B no longer impeding movement, the ice floes that fed the shelf began moving faster towards the sea and started to thin.