Water Streams to Moulin (IMAGE)

University of Washington

Water Streams to Moulin

Caption

Meltwater carves two troughs, each roughly 20 feet deep, in the Greenland Ice Sheet before disappearing into a moulin, a conduit that carries the meltwater through more than half a mile of ice. Meltwater that reaches bedrock can increase the speed at which the ice is moving, a contribution that is more pronounced under the Greenland Ice sheet than under Greenland's faster-moving outlet glaciers, new research in Science Express says.

Credit

I. Joughin/UW Polar Science Center

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