A Dark River Nearly 1,000 Miles Long May Be Flowing Beneath Greenland's Ice

A Dark River Nearly 1,000 Miles Long May Be Flowing Beneath Greenland’s Ice

by Mindy Weisberger, LiveScience

Far below the frozen cover of the Greenland ice sheet sprawls miles of bedrock — and extending through that bedrock for close to 1,000 miles (1,600 kilometers) is a valley that may contain a subterranean river, transporting water from central Greenland to the northern coast.

In the past, planes flying overhead had partially mapped a rocky, subsurface valley under the ice, but their radar coverage of the region left gaps, said Christopher Chambers, a researcher at Hokkaido University in Sapporo, Japan.

To build a clearer picture of what lurks below Greenland’s surface, Chambers and his colleagues created simulations to explore the valley at different depths and model how water might melt from the surface of a glacier to the depths below — perhaps creating a flowing river, Chambers told Live Science. He presented their findings on Dec. 9 here at the annual meeting of the American Geophysical Union (AGU).

Read the full article here…

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