Map of Chad from the CIA World FactbookSandstone pinnacles in northeastern Chad
The terrain of Chad in central Africa is dominated by the low-lying Chad Basin (elevation about 250m / 820ft), which rises gradually to mountains and plateaus on the north, east, and south.
In the east heights of more than 900 metres (3,000ft) are attained in the Ennedi and Ouaddaï plateaus. The greatest elevations are reached in the Tibesti Mountains in the north, with a maximum height of 3,415 metres (11,204ft) at Emi Koussi. The northern half of the republic lies in the Sahara. The Bodélé Depression is a low region in the southern Sahara that is surrounded by basalt mountain ridges.[1] Winds flow through this region and lift dust. The dust from this region supplies over half of the dust to Amazon rainforests.[1]
The only important rivers, the Logone and Chari, are located in the southwest and flow into Lake Chad.[2] The lake doubles in size during the rainy season.
^ ab"Dust to gust". EurekAlert!, AAAS. 28 Dec 2006. Retrieved 28 Dec 2012.
^Krech III, Shepard; Merchant, Carolyn; McNeill, John Robert, eds. (2004). Encyclopedia of World Environmental History. Vol. 2: F–N. Routledge. pp. 748–749. ISBN 978-0-415-93734-4.
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