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Negribreen on the move

12 May 2017

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Rapid acceleration of an Arctic glacier over the past year has been detected by the Copernicus Sentinel-1 satellites.

Sitting on Norway's Spitsbergen island in the Svalbard archipelago, the Negribreen glacier has recently seen a surge in ice surface speed, increasing from 1 m to 13 m a day over the winter.

When a glacier ‘surges' a large amount of ice flows to the end in an unusually short time. While the causes are not completely understood, they are believed to be linked to changes in the amount of heat or water in the lowest layers of the glaciers.

Source: ESA

Image credit: contains modified Copernicus Sentinel data (2014–17), processed by T. Strozzi - Speed spike

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