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Posts Tagged ‘Petermann Glacier’

Greenland’s Petermann Glacier Melting at Alarming Rate

September 6, 2011 Comments off

ibtimes

Scientists say the disintegration of the Petermann Glacier — measuring 186 miles long and 3,280 feet high — may just be the tip of the iceberg concerning climate change’s impact in colder zones.

New photographs show the quick pace at which the massive ice sheet has shrunk over the past two years. Last year, a swath of ice measuring 77 square miles separated and a further piece twice the size of Manhattan could break off in the next year, according to Dr. Alun Hubbard of Aberystwth University, who has been monitoring the Greenland ice sheet for some years.

Oblique view of the Petermann glacier front on 24 July 2009.Related Articles

In 2009, scientists placed GPS masts on the glacier to track its movement, ahead of the major break off of ice that eventually occurred on August 3, 2010. Greenland’s glaciers have lost an Read more…

Giant Chunk of Greenland Ice Set to Break Away

September 2, 2011 Comments off

ouramazingplanet

petermann-glacier-iceberg-100903-02.gifIn 2010, the Manhattan-sized Petermann glacier iceberg enters the Nares Strait: Credit: European Space Agency.

An ice shelf is poised to break off from a Greenland glacier and float out to sea as an island twice the size of Manhattan, scientists say.

“I don’t know exactly when,” Jason Box, a climatologist with Ohio State Unversity’s Byrd Polar Research Center, told OurAmazingPlanet. “I wouldn’t be surprised if it happened today — or if it happened next summer.”

Just a year ago, in August 2010, the same glacier produced an even larger iceberg — a mass of ice four times the size of Manhattan, the largest in recorded Greenland history — yet researchers warn that the next spectacular break could have more-dire consequences.

Box said it’s not clear when the 62-square-mile (160 square kilometers) ice shelf, which is Read more…

Massive ice island drifts toward Canada

July 23, 2011 1 comment

msn

A Manhattan-sized chunk of ice that broke off a glacier in Greenland nearly a year ago is drifting toward the coast of Newfoundland, Canada — providing a stunning sight to scientists and curiosity-seekers but also posing a potential threat to ships.

The ice island is 20 square miles — roughly 6.2 miles long and 3.1 miles wide. It was formed when a 97-square-mile chunk of ice broke off Greenland’s Petermann Glacier on Aug. 5, 2010, possibly due to warming of the Atlantic Ocean.

The ice island, the largest single chunk remaining from the massive parent chunk, has been winding its way through Arctic waters ever since.

In the past few days, it has been moving south at a rate of 5 to 6 miles per hour. On Thursday, it was about 11.5 miles off the Labrador coast, drifting toward Newfoundland, said Lionel Hache, senior ice forecaster with Canadian Ice Service in Ottawa. The Ice Service, a department of Environment Canada, has been tracking the movement of the ice island.

Hache said it was hard to project what course the ice island would take because it was following the water current. “The general direction is south but not in a straight line,” he said. “You have different branches of the current. One of the branches could bring it toward shore, other Read more…