The image above shows a NASA Earth Observatory image of the remnants and former shorelines of the once huge lake. At its largest, sometime before 5000 BC, Lake Mega-Chad was the largest of four Saharan paleolakes, and is estimated to have covered an area of 1,000,000 km (390,000 sq mi), larger than the Caspian Seais today, and may have extended as far northeast as within … The once-great lake has lost most of its water and now spans less than a tenth of the area it covered in the 1960s. Get kids back-to-school ready with Expedition: Learn!

The geological basin, which is smaller than the drainage basin, is a Phanerozoic sedimentary basin formed during the plate divergence that opened the South Atlantic Ocean. Unpublished B.Sc Project.

Lake Mega Chad. Known to scientists as Lake Mega Chad, it covered more than 400,000 square kilometers (150,000 square miles) at its peak, making it slightly larger than the Caspian Sea, the biggest lake on Earth today. Known to scientists as Lake Mega Chad, it covered more than 400,000 square kilometers (150,000 square miles) at its peak, making it slightly larger than the Caspian Sea, the biggest lake on Earth today.Modern Lake Chad has shrunk to just a fraction of its former size, but evidence of the lake’s ancient shorelines is still etched into desert landscapes — hundreds of kilometers from the shores of the modern lake.Sand spits generally form along coves and estuaries as prevailing winds drive currents that transport sand and other sediments along the shore. Numerous preserved coastal features have been described all around the LMC shore. Image: Joshua Stevens, NASA Earth Observatory. Known to scientists as Lake Mega Chad, it covered more than 400,000 square kilometers (150,000 square miles) at its peak, making it slightly larger than the Caspian Sea, the biggest lake on Earth today. Lake Chad gave its name to the country of Chad. More information: West African monsoon dynamics inferred from abrupt fluctuations of Lake Mega-Chad, Simon J. Armitage, Proceedings of the National Academy of … The science team wrote: “A reconstructed lake level history for the ancient Lake Mega-Chad, once the largest lake in Africa, suggests that a North African humid period, with increased precipitation in the Sahara region, ended abruptly around 5,000 years ago, and that the lake’s Bodélé basin, now a large source of atmospheric dust, may not have dried out until around 1,000 years ago.” The basin lies between the West African Craton and Congo Craton, and formed around the same time as the Benue Trough. About 7,000 years ago it covered over 400,000 square kilometers (150,000 square miles). The Earth Observatory is part of the The modern Lake Chad is still a source of water for people in Africa but it has shrunk by 90s since the 1960s as the "Reconstruction of megalake Chad using shuttle radar topographic mission data".

NASA Earth Observatory/Joshua Stevens University of Maiduguri, Borno, NigeriaLeblanc et al. The name Chad is derived from the Kanuri word “Sádǝ” meaning "large expanse of water". The whole lake has been declared a Speaking at the United Nations 73rd General Assembly, the President of Nigeria urged the international community to assist in combatting the root causes of conflict surrounding the Lake Chad The CIMA (Canada) proposed project can be used as an inland The dwindling of the lake has had devastating impacts on Nigeria.The shrinking of the lake has also caused several different This article is about the lake in Africa. Because Lake Chad is very shallow—only 10.5 metres (34 ft) at its deepest—its area is particularly sensitive to small changes in average depth, and consequently it also shows seasonal fluctuations in size. NASA captured a stunning image of what was once Lake Mega Chad 7,000 years ago. A vast lake known as Lake Mega Chad spread more than 400,000 square kilometers (150,000 square miles) across north-central Africa – bigger than the Caspian Sea, the largest lake on Earth today. Historically, Lake Chad has ranked among the largest lakes in Africa, though its surface area varies greatly by season, as well as from year to year. About 7,000 years ago, a vast lake spread hundreds of square kilometers across north-central Africa.


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