News tagged with sheet

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Previously Unknown Volcanic Eruption Helped Trigger Cold Decade

Previously Unknown Volcanic Eruption Helped Trigger Cold Decade

Space & Earth / Earth Sciences

created Oct 29, 2009 | popularity 4.3 / 5 (27) | comments 9

(PhysOrg.com) -- A team of chemists from the U.S. and France has found compelling evidence of a previously undocumented large volcanic eruption that occurred exactly 200 years ago, in 1809.


North Carolina Sea Levels Rising Three Times Faster Than in Previous 500 Years, Study Says

Space & Earth / Earth Sciences

created Oct 28, 2009 | popularity 2.5 / 5 (10) | comments 1

PHILADELPHIA -- An international team of environmental scientists led by the University of Pennsylvania has shown that sea-level rise, at least in North Carolina, is accelerating. Researchers found 20th-century sea-level ...


Researchers to study hidden lakes beneath West Antarctic ice sheet

Researchers to study hidden lakes beneath West Antarctic ice sheet

Space & Earth / Earth Sciences

created Oct 21, 2009 | popularity 5 / 5 (3) | comments 0

(PhysOrg.com) -- UC Santa Cruz researchers are among the leaders of a major Antarctic research project in which scientists will drill through a half-mile of ice to penetrate subglacial Lake Whillans and study ...


Antarctic glacier

West Antarctic ice sheet may not be losing ice as fast as once thought

Space & Earth / Earth Sciences

created Oct 19, 2009 | popularity 4.1 / 5 (10) | comments 4

New ground measurements made by the West Antarctic GPS Network (WAGN) project, composed of researchers from The University of Texas at Austin, The Ohio State University, and The University of Memphis, suggest ...


NASA flies to Antarctica for largest airborne polar ice survey

Space & Earth / Earth Sciences

created Oct 08, 2009 | popularity 5 / 5 (2) | comments 0

NASA begins a series of flights Oct. 15 to study changes to Antarctica's sea ice, glaciers and ice sheets. The flights are part of Operation Ice Bridge, a six-year campaign that is the largest airborne survey ever made of ...


Peering under the ice of a collapsing polar coast

Peering under the ice of a collapsing polar coast

Space & Earth / Earth Sciences

created Oct 07, 2009 | popularity 3.8 / 5 (4) | comments 2

Starting this month, a giant NASA DC-8 aircraft loaded with geophysical instruments and scientists will buzz at low level over the coasts of West Antarctica, where ice sheets are collapsing at a pace far beyond ...


NIU will use robotic submarine to explore melting occurring below Antarctic ice

NIU will use robotic submarine to explore melting occurring below Antarctic ice

Space & Earth / Earth Sciences

created Oct 05, 2009 | popularity 3 / 5 (2) | comments 0

(PhysOrg.com) -- Northern Illinois University geologists are helping to lead a multi-million-dollar, five-year investigation of melting near the base of the West Antarctic Ice Sheet (WAIS) using a 24-foot-long ...


NASA Ice Satellite Maps Profound Polar Thinning

NASA Ice Satellite Maps Profound Polar Thinning

Space & Earth / Earth Sciences

created Sep 24, 2009 | popularity 3.3 / 5 (11) | comments 3

(PhysOrg.com) -- Researchers have used NASA’s Ice, Cloud and Land Elevation Satellite (ICESat) to compose the most comprehensive picture of changing glaciers along the coast of the Greenland and Antarctic ...


Lasers from space show thinning of Greenland and Antarctic ice sheets

Space & Earth / Earth Sciences

created Sep 23, 2009 | popularity 1.8 / 5 (4) | comments 0

The most comprehensive picture of the rapidly thinning glaciers along the coastline of both the Antarctic and Greenland ice sheets has been created using satellite lasers. The findings are an important step forward in the ...


Radar Map of Buried Mars Layers Matches Climate Cycles

Radar Map of Buried Mars Layers Matches Climate Cycles

Space & Earth / Space Exploration

created Sep 22, 2009 | popularity 4.3 / 5 (7) | comments 1

(PhysOrg.com) -- New, three-dimensional imaging of Martian north-polar ice layers by a radar instrument on NASA's Mars Reconnaissance Orbiter is consistent with theoretical models of Martian climate swings ...


Melting of the Greenland ice sheet mapped

Melting of the Greenland ice sheet mapped

Space & Earth / Earth Sciences

created Sep 16, 2009 | popularity 3.9 / 5 (18) | comments 0

Will all of the ice on Greenland melt and flow out into the sea, bringing about a colossal rise in ocean levels on Earth, as the global temperature rises? The key concern is how stable the ice cap actually ...


Egg-shaped legacy of Britain's mobile ice-sheet

Egg-shaped legacy of Britain's mobile ice-sheet

Space & Earth / Earth Sciences

created Sep 16, 2009 | popularity 4.5 / 5 (2) | comments 0

(PhysOrg.com) -- The ice sheets that sculpted the landscape of northern Britain moved in unexpected ways and left distinctive egg-shaped features according to new research.


Antarctic

New CO2 data helps unlock the secrets of Antarctic formation

Space & Earth / Earth Sciences

created Sep 13, 2009 | popularity 4.3 / 5 (13) | comments 6

The link between declining CO2 levels in the earth's atmosphere and the formation of the Antarctic ice caps some 34 million years ago has been confirmed for the first time in a major research study.


Greenland's melt mystery unfolds, at glacial pace (AP)

Greenland's melt mystery unfolds, at glacial pace

Space & Earth / Earth Sciences

created Sep 10, 2009 | popularity 3.1 / 5 (8) | comments 1

(AP) -- Suddenly and without warning, the gigantic river of ice sped up, causing it to spit icebergs ever faster into the ocean off southeastern Greenland.


Computer model documents the history of the West Antarctic ice sheet

Computer model documents the history of the West Antarctic ice sheet

Space & Earth / Earth Sciences

created Aug 28, 2009 | popularity 3.4 / 5 (10) | comments 3

(PhysOrg.com) -- One major threat of planetary warming is the melting of the great polar ice sheets, and the resulting rise in global sea level. Particularly worrisome to researchers is the fragility of the ...