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Latest Glaciers of Antarctica Stories

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2009-01-07 15:10:00

In an effort to seek clues to world ocean level rises in one of the most inaccessible places on earth, scientists are sending a yellow robot submarine to dive under an ice shelf in Antarctica. A U.S. research vessel will launch the 22 ft submarine to probe the underside of the ice at the end of the Pine Island glacier, which is moving faster than any other in Antarctica and already brings more water to the oceans than Europe's Rhine River. Large icebergs have been breaking off Antarctica's...

2008-12-31 11:59:08

British scientists plan to use a yellow submarine to explore beneath a giant melting Antarctic glacier whose collapse could raise sea levels 4 inches. The scientists hope to find out why Pine Island Glacier, flowing west-northwest along the south side of the Hudson Mountains into Pine Island Bay, Amundsen Sea, is melting so quickly at its base, said the British Antarctic Survey, Britain's national Antarctic operator. The 23-foot-long, robotic yellow submarine, nicknamed Autosub, will map out...

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2008-11-17 13:24:34

Scientists say that enormous floods beneath the Antarctic ice sheet can now be linked directly to the speed at which that ice moves towards the ocean. The giant Byrd Glacier in east Antarctica sped up just as two lakes under the ice overflowed, according to Leigh Stearns and colleagues. They say the floodwater acts as a lubricant, easing the ice over the bedrock. Experts believe the more ice the Polar Regions dump in the ocean, the higher the waters will rise. Ice behavior in response to a...

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2008-09-05 12:55:00

A US team of researchers concluded that global sea levels are very unlikely to reach above 2m during this century. In fact, the speed of glaciers resulting in a rise over 2m is "physically untenable", researchers note in Friday's edition of the journal Science. Scientists say that news is still nothing to applaud. "Even a sea level rise of 20cm (8in) in a century will have quite dramatic implications," said Shad O'Neel from the US Geological Survey (USGS). "This work is in no way meant to...

2008-03-26 02:20:28

A vast ice shelf hanging on by a thin strip looks to be the next chunk to break off from the Antarctic Peninsula, the latest sign of global warming's impact on Earth's southernmost continent. Scientists are shocked by the rapid change of events. Glaciologist Ted Scambos of the University of Colorado was monitoring satellite images of the Wilkins Ice Shelf and spotted a huge iceberg measuring 25 miles by 1.5 miles (41 kilometers by 2.5 kilometers) that appeared to have broken away from...

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2008-03-25 16:45:00

British Antarctic Survey has captured dramatic satellite and video images of an Antarctic ice shelf that looks set to be the latest to break out from the Antarctic Peninsula. A large part of the Wilkins Ice Shelf on the Antarctic Peninsula is now supported only by a thin strip of ice hanging between two islands. It is another identifiable impact of climate change on the Antarctic environment. Scientists monitoring satellite images of the Wilkins Ice Shelf spotted that a huge (41 by 2.5 km)...

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2008-01-23 19:05:00

PASADENA, Calif. -- Ice loss in Antarctica increased by 75 percent in the last 10 years due to a speed-up in the flow of its glaciers and is now nearly as great as that observed in Greenland, according to a new, comprehensive study by NASA and university scientists. In a first-of-its-kind study, an international team led by Eric Rignot of NASA's Jet Propulsion Laboratory, Pasadena, Calif., and the University of California, Irvine, estimated changes in Antarctica's ice mass between 1996...

2008-01-21 09:23:24

A volcano beneath Antarctica’s icy surface has been detected for the first time. Under the frozen continent's western-most ice sheet, the volcano erupted about 2,300 years ago yet remains active, according to a study published Sunday in an online issue of the journal Nature Geosciences. "We believe this was the biggest eruption in Antarctica during the last 10,000 years," said study co-author Hugh Corr, a glaciologist for the British Antarctic Survey (BAS). "It blew a...

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2007-03-07 14:10:00

GREENBELT, Md. - Researchers from NASA and the U.S. Geological Survey (USGS), Golden, Colo., have woven together more than a thousand images from the Landsat 7 satellite to create the most detailed, high-resolution map ever produced of Antarctica. The Landsat Image Mosaic of Antarctica (LIMA) offers views of the coldest continent on Earth in 10 times greater detail than previously possible. "These images give us incredibly detailed views of the Antarctic ice sheet surface and serve as maps...

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2007-03-06 18:30:00

Just as explorers once searched the vast reaches of Africa's Nile River for clues to its behavior and ultimate source, modern-day scientists are searching Antarctica for its hidden lakes and waterways that can barely be detected at the surface of the ice sheet. In a new study, researchers have unearthed how water from this vast subglacial system contributes to the formation of ice streams, and how it plays a crucial role in transporting ice from the remote interior of Antarctica toward the...