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Skyscraper-Size Ice Structures Discovered Beneath Greenland Ice Sheet

2014-06-16 19:43:00| Climate Ark Climate Change & Global Warming Newsfeed

EcoWatch: Beneath the barren whiteness of Greenland, a mysterious world has popped into view. Using ice-penetrating radar, researchers have discovered ragged blocks of ice as tall as city skyscrapers and as wide as the island of Manhattan at the very bottom of the ice sheet, apparently formed as water beneath the ice refreezes and warps the surrounding ice upwards. The newly revealed forms may help scientists understand more about how ice sheets behave and how they will respond to a warming climate. The...

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Skyscraper-Size Ice Structures Discovered Base of Greenland Ice Sheet

2014-06-16 18:01:00| Climate Ark Climate Change & Global Warming Newsfeed

Environment 360: Melting and refreezing at the base of the Greenland ice sheet has created massive, complex structures the height of skyscrapers and the width of Manhattan, according to research published in Nature Geoscience. The hidden formations more than a mile below the surface stand in stark contrast to the nearly flat, smooth exterior of the ice sheet and may accelerate its flow toward the sea, researchers say. Scientists had previously interpreted the irregular topography at the base of the ice as hills or...

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Vast ice structures discovered beneath Greenland ice sheet

2014-06-16 16:39:00| Climate Ark Climate Change & Global Warming Newsfeed

Blue and Green: Far beneath the flat, tranquil surface of northern Greenlands ice sheet, scientists have discovered vast ice structures as tall as skyscrapers and as wide as the island of Manhattan. The formations are caused when ice at the base of the glacier melts and refreezes over hundreds of years, in a process that may be quickening the glaciers slide into the sea. Using radar from airborne surveys, researchers found that the structures, which cover about a tenth of northern Greenland, are made not...

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Refreezing Water Causes Weird Warps in Greenlands Ice

2014-06-15 19:30:00| Climate Ark Climate Change & Global Warming Newsfeed

Climate Central: The flat, glistening, white expanse of the Greenland Ice Sheet, stretching out across hundreds of thousands of square miles, appears placid, unchanging ... boring even. But this tranquil surface belies the turmoil taking place below, at the base of the ice sheet. There, scientists have discovered sections of ice up to a kilometer thick and tens of kilometers long where meltwater has refrozen to the base of the ice sheet, setting off a dynamic process that causes the layers of ice to build up over...

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Frozen underworld discovered beneath Greenland ice sheet

2014-06-15 19:16:00| Climate Ark Climate Change & Global Warming Newsfeed

Guardian: Scientists have discovered a frozen underworld beneath the ice sheet covering northern Greenland. The previously unknown landscape, a vast expanse of warped shapes including some as tall as a Manhattan skyscraper, was found using ice-penetrating radar loaded aboard Nasa survey flights. The findings and the first images of the frozen world more than a mile below the surface of the ice sheet are published on Sunday in the journal Nature Geoscience. Scientists said the findings could deepen...

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