Greenland's Grand Canyon or Grand Canyon of Greenland is a tentative canyon of record length discovered underneath theGreenland ice sheet. Ice-penetrating radar data collected duringNASA's Operation IceBridge showed a huge subglacial canyonrunning from the central region of the island northward into the Arctic Ocean, to the fjord of the Petermann Glacier. The canyon is likely to have influenced basal water flow from the ice sheet interior to the margin. The canyon is more than 750 kilometres (466 mi) long, up to 800 metres (2,600 ft) deep and 10 kilometres (6 mi) wide, making it the longest canyon discovered on the Earth to date.
Photo Source: Collected from Internet
No comments:
Post a Comment