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File:Send dunes in death valley national park.jpg

Summary

Description Sand Dunes in Death Valley National Park. The image shows coppice dunes , which are formed around vegetation. These dunes are usually found in the deserts in semiarid regions. Like with all sand dunes the coppice dunes form, when there is lots of loose sand,a wind, which is strong enough to move the sand and some kind of obstruction, where sand particles settle out. The size and shape of a coppice dune depends on the amount of sand available, the characteristics of the wind and on forms of vegetations they form around. As you could see from the image the dunes are very much symmetrical. The image also shows wind ripples. They form, when sand grains bouncing and rolling up the windward surface of a dune land on the windward side of each ripple and produces a low ridge.
Date 2007
Source Own work
Author Brocken Inaglory

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