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Lofty Thought of the Day
- Category: Science & Technology
Greenland's Petermann Glacier in 2009. Photo courtesy of Prof. Andreas Muenchow, University of Delaware. A University of Delaware researcher reports that an “ice island” four times the size of Manhattan has calved from Greenland's Petermann Glacier. The last time the Arctic lost such a large chunk of ice was in 1962.
“In the early morning hours of August 5, 2010, an ice island four times the size of Manhattan was born in northern Greenland,” said Andreas Muenchow, associate professor of physical ocean science and engineering at the University of Delaware's College of Earth, Ocean, and Environment. Muenchow's research in Nares Strait, between Greenland and Canada, is supported by the National Science Foundation (NSF).
Satellite image from Aug. 5, 2010, shows the huge ice island calved from Greenland's Petermann Glacier. Courtesy of Prof. Andreas Muenchow, University of Delaware.
Satellite imagery of this remote area at 81 degrees N latitude and 61 degrees W longitude, about 620 miles [1,000 km] south of the North Pole, reveals that Petermann Glacier lost about one-quarter of its 43-mile long [70 km] floating ice-shelf.
Petermann Glacier, the parent of the new ice island, is one of the two largest remaining glaciers in Greenland that terminate in floating shelves. The glacier connects the great Greenland ice sheet directly with the ocean...MORE
