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Latest Ice sheet Stories

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2011-02-02 21:37:51

Research project completes drilling for the year, reaching two miles below West Antarctic Ice SheetOn Friday, Jan. 28 in Antarctica, a research team investigating the last 100,000 years of Earth's climate history reached an important milestone completing the main ice core to a depth of 3,331 meters (10,928 feet) at West Antarctic Ice Sheet Divide (WAIS). The project will be completed over the next two years with some additional coring and borehole logging to obtain additional information and...

2011-01-21 00:00:48

High-Resolution Video, Photos Available Upon Request New York (Vocus/PRWEB) January 20, 2011 New research shows that 2010 set new records for the melting of the Greenland Ice Sheet, expected to be a major contributor to projected sea level rises in coming decades. "This past melt season was exceptional, with melting in some areas stretching up to 50 days longer than average," said Dr. Marco Tedesco, Director of the Cryosphere Processes Laboratory at the City College of New York (CCNY...

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2010-12-16 12:44:46

Scientists have previously shown that West Antarctica is losing ice, but how that ice is lost remained unclear. Now, using data from Earth observing satellites and airborne science missions, scientists are closing in on ice loss culprits above and below the ice. The findings, presented Dec. 15 at the fall meeting of the American Geophysical Union (AGU) in San Francisco, Calif., are expected to improve predictions of sea level rise. Time Not Healing Glacial Wounds A new analysis by Ted...

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2010-12-01 14:08:31

Southampton researchers have estimated that  sea-level rose by an average of about 1 meter per century at the end of the last Ice Age, interrupted by rapid "Ëœjumps' during which it rose by up to 2.5 meters per century. The findings, published in Global and Planetary Change, will help unravel the responses of ocean circulation and climate to large inputs of ice-sheet meltwater to the world ocean. Global sea level rose by a total of more than 120 meters as the vast ice sheets of...

2010-11-10 08:31:41

NASA will hold a media teleconference at 2 p.m. EST on Monday, Nov. 15, from Punta Arenas, Chile, to discuss the agency's Operation IceBridge. Researchers are using seven instruments aboard NASA's DC-8 flying laboratory to map Antarctic ice surfaces and the features hidden below. The data are critical for understanding the dynamics of ice in West Antarctica and its impact on sea-level rise. During the briefing, IceBridge scientists will provide an overview of the multi-year mission and an...

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2010-10-29 14:10:40

Gravity field satellites observe for the first time the fluctuations of ice mass of the Antarctic ice sheet due to El Nino The change in the ice mass covering Antarctica is a critical factor in global climate events. Scientists at the GFZ German Research Centre for Geosciences have now found that the year by year mass variations in the western Antarctic are mainly attributable to fluctuations in precipitation, which are controlled significantly by the climate phenomenon El Nino. They examined...

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2010-10-22 10:18:49

Scientists returned this week to the Southern Hemisphere where NASA's Operation IceBridge mission is set to begin its second year of airborne surveys over Antarctica. The mission monitors the region's changing sea ice, ice sheets and glaciers. Researchers will make flights from Punta Arenas, Chile, on NASA's DC-8, a 157-foot airborne laboratory equipped with a suite of seven instruments. The focus is on re-surveying areas that are undergoing rapid change and embarking on new lines of...

2010-10-22 08:00:00

WASHINGTON, Oct. 22 /PRNewswire-USNewswire/ -- Scientists returned this week to the Southern Hemisphere where NASA's Operation IceBridge mission is set to begin its second year of airborne surveys over Antarctica. The mission monitors the region's changing sea ice, ice sheets and glaciers. (Logo: http://photos.prnewswire.com/prnh/20081007/38461LOGO) (Logo: http://www.newscom.com/cgi-bin/prnh/20081007/38461LOGO) Researchers will make flights from Punta Arenas, Chile, on NASA's DC-8, a...

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2010-09-15 08:44:16

NASA and European researchers have conducted a novel study to simultaneously measure, for the first time, trends in how water is transported across Earth's surface and how the solid Earth responds to the retreat of glaciers following the last major Ice Age, including the shifting of Earth's center of mass. To calculate the changes, scientists at NASA's Jet Propulsion Laboratory, Pasadena, Calif.; Delft University of Technology, Delft, Netherlands; and the Netherlands Institute for Space...

2010-09-01 14:24:00

GREENBELT, Md., Sept. 1 /PRNewswire-USNewswire/ -- Operation IceBridge - a NASA airborne mission to observe changes in Earth's rapidly changing polar land ice and sea ice - is soon to embark on its fourth field season in October. The mission is now paralleled by a campaign to bring data to researchers as quickly as possible and to accelerate the analysis of those changes and how they may affect people and climate systems. (Logo: http://photos.prnewswire.com/prnh/20081007/38461LOGO) (Logo:...