Subglacial Lake, Greenland - stock photo
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Subglacial Lake, Greenland

Scientists using satellite images and data from NASA's Operation IceBridge have found evidence of a drained and refilled subglacial lake beneath northeastern Greenland's Flade Ice Cap. This sub-ice body of water is only one of a handful that have been detected in Greenland and its presence sheds new light on how the Greenland Ice Sheet reacts to warming temperatures. Subglacial lakes are relatively common in Antarctica, and although recent studies have mathematically predicted possible locations for hundreds of such features in Greenland, few have actually been found. Bodies of water beneath the ice are normally detected either with ice-penetrating radar or by observing rapid changes in ice surface elevation such as bulges or basins. In a new study, a research team found a large basin that formed over a 21-day period in the summer of 2011 using satellite images.

Science Source / NASA/Michael Studinger

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