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Latest Ice sheet Stories

2009-05-27 11:24:17

Scientists say the ongoing melting of the Greenland ice sheet might drive more water than previously thought toward the U.S. and Canadian coastlines. Scientists led by the National Center for Atmospheric Research said if Greenland's ice melts at a moderate to high rate, ocean circulation by 2100 could shift, raising sea levels at New York, Boston, Halifax and other cities in the northeastern United States and Canada about 12-20 inches more than in other coastal areas. The research builds on...

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2009-05-15 11:20:00

Scientists have reevaluated the repercussions that the Earth would suffer if the West Antarctic Ice Sheet were to completely melt.In the journal Science, researchers said a complete melt of the WAIS would cause a 3.3 meter (10 ft) increase in sea level, compared to previous studies that predicted a rise of five to six meters.They added that even a rise of lesser levels would still have an impact on coastal cities, including New York."Sea level rise is considered to be the one...

2009-04-30 13:53:00

EDWARDS, Calif., April 30 /PRNewswire-USNewswire/ -- NASA will 'break the ice' on a pair of new airborne radars that can help monitor climate change when a team of scientists embarks this week on a two-month expedition to the vast, frigid terrain of Greenland and Iceland. (Logo: http://www.newscom.com/cgi-bin/prnh/20081007/38461LOGO) Scientists from NASA's Jet Propulsion Laboratory, Pasadena, Calif., and Dryden Flight Research Center, Edwards, Calif., will depart Dryden Friday, May 1, on a...

2009-04-13 08:13:32

Gaining insights into the nature of sea ice In 1994, University of Utah mathematician Ken Golden went to the Eastern Weddell Sea for the Antarctic Zone Flux Experiment. The sea's surface is normally covered with sea ice, the complex composite material that results when sea water is frozen. During a powerful winter storm, Golden observed liquid sea water welling up and flooding the sea ice surface, producing a slushy mixture of sea water and snow that freezes into snow-ice. With his...

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2009-04-09 14:10:56

U.S. and British government researchers announced on Friday that climate change is quickly shrinking one Antarctic ice shelf, while another is disappearing and glaciers are melting faster than climate scientists originally predicted, Reuters reported. Scientists noted that the Wordie Ice Shelf, which has been disintegrating since the 1960s, is gone and the northern part of the Larsen Ice Shelf no longer exists. Since 1986, over 3,200 square miles have broken off from the Larsen shelf. U.S....

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2009-04-03 07:05:00

The Wilkins Ice Shelf is at risk of partly breaking away from the Antarctic Peninsula as the ice bridge that connects it to Charcot and Latady Islands looks set to collapse. The beginning of what appears to be the demise of the ice bridge began this week when new rifts forming along its centre axis resulted in a large block of ice breaking away. The Advanced Synthetic Aperture Radar (ASAR) images acquired on 2 April by ESA's Envisat satellite confirm that the rifts are quickly expanding...

2009-03-30 13:34:43

The U.S. space agency announced the start Monday of a monthlong Arctic research mission using aircraft to measure the thickness of Greenland's ice sheet. The mission is the first of two National Aeronautics and Space Administration airborne field campaigns in the Arctic to closely inspect the Greenland and Iceland ice sheets and that region's sea ice and glaciers. NASA's Ice, Cloud and land Elevation Satellite, known as ICESat, is completing a seasonal study of the Earth's ice sheets to gauge...

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2009-03-30 14:26:54

Although the International Polar Year officially came to a close in February, NASA is continuing to push the frontiers of polar science from space, the air and the surface of ice. On Monday, NASA embarks on the first of two airborne field campaigns in the Arctic to take a closer look at Greenland and Iceland ice sheets and the region's sea ice and glaciers. From space, NASA's Ice, Cloud, and land Elevation Satellite, known as ICESat, is completing a seasonal survey of the world's ice sheets...

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2009-03-17 16:27:25

A robot submarine studying the underbelly of an Antarctic ice shelf has found evidence of rising sea levels, scientists reported on Tuesday. Developed by UK's National Oceanography Center of Southampton, Autosub is an Automated Underwater Vehicle (AUV). It has completed six missions traveling under Pine Island Glacier, an extension of the West Antarctic ice sheet in the Amundsen Sea. The sub uses sonar to create a three-dimensional map of the seabed and the underside of the ice. Scientists...

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2009-03-17 15:36:29

A poll of experts finds that a dramatic climate shift such as the death of the Amazon forest or the disappearance of Greenland's ice is more than 50 percent likely during the next 200 years under the worst case global warming scenarios. The survey of 52 scientists also revealed concerns that long-term global warming would spur drastic changes such as the disintegration of the ice sheet in West Antarctica, something that would raise world sea levels. "There's concern about the risks of massive...