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Latest Antarctic ice sheet Stories

2009-10-06 14:50:30

NASA will hold a media teleconference at 11:30 a.m. EDT on Thursday, Oct. 8, to preview the agency's largest airborne research effort ever to study Antarctic ice sheets, ice shelves and sea ice. The flights are part of NASA's Operation Ice Bridge, a six-year airborne campaign to each of Earth's polar regions that will extend and expand NASA's multi-year record of space-based observations of ice conditions. Advancing scientific understanding of the behavior of polar ice is needed to improve...

2009-10-01 13:54:54

U.S. scientists say a 24-foot-long robotic submarine will be used in a multimillion-dollar, five-year study of melting on the West Antarctic Ice Sheet. Northern Illinois University said its robotic submarine will be lowered through more than a half mile of ice into ocean water in the study that involves nine U.S. institutions. Researchers said the submarine will collapse to a width of only two feet, allowing it to be lowered through a drill hole melted in the ice. The sub is designed to allow...

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2009-09-15 06:40:00

Researchers have confirmed for the first time a link between declining levels of atmospheric carbon dioxide (CO2) and the formation of Antarctic ice caps some 34 million years ago. The results of the major research study support computer climate models that predict both the creation of ice sheets when CO2 levels fall and the melting of ice caps when CO2 levels rise. "Our study is the first to provide a direct link between the establishment of an ice sheet on Antarctica and atmospheric carbon...

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2009-08-25 15:10:00

Lakes in Antarctica, concealed under miles of ice, require scientists to come up with creative ways to identify and analyze these hidden features. Now, researchers using space-based lasers on a NASA satellite have created the most comprehensive inventory of lakes that actively drain or fill under Antarctica's ice. They have revealed a continental plumbing system that is more dynamic than scientists thought."Even though Antarctica's ice sheet looks static, the more we watch it, the more we see...

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2009-08-14 12:25:00

Experts say one of the largest glaciers in Antarctica is thinning four times faster than it was 10 years ago, BBC News reported. The surface of the ice at the Pine Island glacier in west Antarctica is now dropping at a rate of up to 50 feet a year, according to a recent study of satellite measurements. The work, by British scientists and published in Geophysical Research Letters, shows that the glacier has lowered by almost 300 feet since 1994, which has serious implications for sea-level...

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2009-07-20 14:52:59

A new study published this week takes scientists a step further in their quest to understand how Antarctica's vast glaciers will contribute to future sea-level rise. Reporting in the journal Nature Geoscience, scientists from British Antarctic Survey (BAS) and University of Durham describe how a new 3-d map created from radar measurements reveals features in the landscape beneath a vast river of ice, ten times wider than the Rhine*, in the West Antarctic Ice Sheet. During 2007, two...

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2009-06-03 17:25:00

New research by scientists in Britain and China reveals evidence of how the East Antarctic ice sheet initially formed. The work provides a snapshot of terrain that has lain hidden miles beneath the ice for millions of years, when rivers ran through mountain valleys that were oddly similar to the modern European Alps. The scientists used radar to map an area of the Gamburtsev mountains, believed to be where the ice originated. The region would have been cold enough to support the...

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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...

2009-05-14 14:24:41

The potential contribution to sea level rise from a collapse of the West Antarctic Ice Sheet (WAIS) have been greatly overestimated, according to a new study published in the journal Science. Scientists estimate global sea level would rise 3.3 metres, not five or six, as previously thought. The Atlantic and Pacific seaboards of the US, even in the case of a partial collapse, would experience the largest increases, threatening cities such as New York, Washington DC and San Francisco.Long...

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2009-05-05 10:38:55

Most comprehensive seabed image of Amundsen Sea Embayment Motorway-sized troughs and channels carved into Antarctica's continental shelves by glaciers thousands of years ago could help scientists to predict future sea-level rise according to a report in the journal Geology this month (May). Using sonar technology from onboard ships, scientists from British Antarctic Survey (BAS) and the German Alfred Wegener Institute (AWI) captured the most extensive, continuous set of images of the seafloor...


Latest Antarctic ice sheet Reference Libraries

Antarctica
2013-02-18 10:15:24

Antarctica is the Earths southernmost continent; it contains the geographic South Pole. It’s situated in the Antarctic area of the Southern Hemisphere, almost completely south of the Antarctic Circle, and is bordered by the Southern Ocean. It’s the fifth-largest continent at 5.4 million sq miles. On average, it is the driest, coldest, and windiest continent as well as having the highest average elevation of all the continents. Considered a desert, the annual precipitation is only 8...

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Word of the Day
barratry
  • The offense of persistently instigating lawsuits, typically groundless ones.
  • An unlawful breach of duty on the part of a ship's master or crew resulting in injury to the ship's owner.
  • Sale or purchase of positions in church or state.
This word ultimately comes from the Old French word 'barater,' to cheat.
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