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antarctica

Glacier moves in fits and starts

The Whillans Ice Stream — an Antarctic glacier that covers an area slightly smaller than the state of New Jersey — flows from the interior of the continent to the ocean at a rate of about one meter per day. That’s not unusual for a large glacier, but how it covers that distance is surprising. Instead of inching along at a steady pace as most glaciers do, the Whillans Ice Stream jerks forward just twice a day, each time sending out seismic waves equivalent to a major earthquake.

28 Aug 2008

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