Saudi Arabia Dunes
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Saudi Arabia Dunes

March 31, 2003
This image was acquired on June 25, 2000 and covers an area of 37 by 28 km. It shows a great sea of linear dines in part of the Rub' al Khali, or the Empty Quarter in Saudi Arabia. The dunes are yellow due to the presence of iron oxide minerals; the inter-dune area is made up of clays and silt, and appears blue due to its high reflectance in band 1. The Rub' al Khali is the world's largest continuous sand desert. It covers about 650,000 square kilometers (250,966 square miles) and lies mainly in southern Saudi Arabia, though it does extend into the United Arab Emirates, Oman, and Yemen.

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