Deep, Hidden Trench Discovered Beneath Antarctic Glacier

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Deep, Hidden Trench Discovered Beneath Antarctic Glacier
Posted: October 2, 2014

 Center for Remote Sensing of Ice SheetsIce-penetrating radar has uncovered a previously unknown ice-covered trench, and other detailed terrain, in the bedrock hidden beneath two massive, bluish glaciers in Greenland and Antarctica.

The gaping features were revealed in the first, highly detailed 3D maps of the frozen bedrock — the land under Greenland's Jakobshavn Glacier and Antarctica's Byrd Glacier —which may help researchers predict how glaciers, ice sheets and sea levels may change in the future.

"Without bed topography, you cannot build a decent ice-sheet model," lead researcher Prasad Gogineni, director of the Center for Remote Sensing of Ice Sheets (CReSIS) at the University of Kansas, said in a statement.

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