GOOD WATER MANAGEMENT EMULATES NATURE
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CTA. 1999. GOOD WATER MANAGEMENT EMULATES NATURE. Spore 80. CTA, Wageningen, The Netherlands.
Permanent link to cite or share this item: http://hdl.handle.net/10568/48359
External link to download this item: http://sporearchive.cta.int/spore80/SPOPDFGB80/DOSSPGB.pdf
A World Bank credit of USD 38.7 million will increase the production of the Manantali dam, built in the 1980's in the valley of the River Senegal, to 800 gigawatts per hour; the turbines will be installed in 2000. Yet the dam is seen by many as the...
A World Bank credit of USD 38.7 million will increase the production of the Manantali dam, built in the 1980's in the valley of the River Senegal, to 800 gigawatts per hour; the turbines will be installed in 2000. Yet the dam is seen by many as the Bad Dam par excellence. Three countries have a direct interest in the 500 square kilometres of lake, holding 11 billion m_ of water, which the dam provides : Mauritania and Senegal for irrigation; and Mali for electricity production and having a navigable river all year round. 'The problems don't come from the dam, but from the lack of water flow, explains Jean-Claude Bader, head of hydrological research. The floods of 1970 and 1997 were exceptional. A dam in those circumstances means we can modulate their frequency slightly, and produce 59 megawatts of electricity per hour. If we use the dam in other circumstances to obtain an artificial flow for agriculture, then we reduce electricity production to 45 Mgw/hour.' It is a question of finding the best balance. Statistical simulations are being run on flood measurements from the beginning of the century, and should give the dam managers the data they need to adapt the dam's use.
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