Climate Change - Greenland - Ayles Ice Shelf Animation

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Enormous ice shelf snaps off in Arctic - Powerful breakup Picked Up By Quake Monitors

alyes ice shelf alyes ice shelf animation National Post - Dec 28, 2006

An ancient ice shelf has cracked off northern Ellesmere Island, creating an enormous, 66- square-kilometre ice island and leaving a trail of icy blocks in its wake. "It really is incredible," said Warwick Vincent of Laval University, one of the few people to have laid eyes on the scene. "It's like a cruise missile has come down and hit the ice shelf." The breakup was so powerful, earthquake monitors 250 kilometres away picked up the tremors as the 3,000 to 4,500 year-old shelf tore away from its fjord on Ellesmere. Original article

Laurie Weir, Canadian Ice Service "Over the next few years this ice island could drift into populated shipping routes. There's significant oil and gas development in this region as well, so we'll have to keep monitoring its location over the next few years."

Using US and Canadian satellite images, as well as data from seismic monitors, Professor Copland discovered that the ice shelf collapsed on the afternoon of August 13 2005.

Professor Copland observed, "What surprised us was how quickly it happened. It's pretty alarming. Even 10 years ago scientists assumed that when global warming changes occur that it would happen gradually so that perhaps we expected these ice shelves just to melt away quite slowly, but the big surprise is that, for one they are going, but secondly, that when they do go, they just go suddenly, it's all at once, in a span of an hour."

Vanashing Ice - Konrad Steffen arrived on the Greenland Ice Sheet for the 2002 summer fieldwork season and immediately observed that something significant was happening in the Arctic. Pools of water already spotted the ice surface, and melting was occurring where it never had before.

Ellesmere Island, Disraeli Fiord - Animation (2.5MB)

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