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Tuesday, January 25, 2011

Pine Island Glacier: water channels underneath let warmer ocean water melt it from beneath

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A gravity instrument, flown during NASA's Operation IceBridge campaign in 2009, revealed the presence of a sinuous channel (blue) below West Antarctica's Pine Island ice shelf. The channel allows warm ocean water to reach the grounding line, leading to melting of the ice shelf from below› View larger
A gravity instrument, flown during NASA's Operation IceBridge campaign in 2009, revealed the presence of a sinuous channel (blue) below West Antarctica's Pine Island ice shelf. The channel allows warm ocean water to reach the grounding line, leading to melting of the ice shelf from below. Credit: NASA

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