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The present work focuses on climate change impacts on the hydrodynamic functioning of Ouémé Delta. Its objectives are:
1) to assess current state of extreme event in Ouémé Delta using trend analysis of climate extreme indices;
2) to quantify impact of climate change over Ouémé River discharge at Bonou outlet from 1971 to 2050;
3) design simple flood mapping process for Ouémé Delta;
4) to model Ouémé Delta hydrodynamic under climate change effects. Combination of hydrologic and hydraulic models as well as remote sensing data used hereby showed that Ouémé Delta early warning could be improved. Moreover, Ouémé discharge is decreasing at 2050 horizon due to global warming. Therefore, dam construction should account for it for better investment.

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