Calculation of design rainfall and runoff on the Bani basin (Mali): a study of the vulnerability of hydraulic structures and of the population since the drought

Abstract : With climate change happening, hydraulic engineering design could play an important role in vulnerability assessment. Thus, we compute with the most recent daily data available the 10-year, 20-year and 100-year rainfall for 51 stations and the 10-year, 20-year and 100-year discharge for 6 stations of the Bani basin in Mali (129 000 km²). These values are computed using L-moments method and dividing the watershed in homogeneous regions. Finally, an empirical formula to calculate 10-year discharge is computed, considering the important rupture in discharges' values around 1970. Values computed show that period selected for computation is important, as few years could change results significantly.
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Philippe Roudier, Mahé Gil. Calculation of design rainfall and runoff on the Bani basin (Mali): a study of the vulnerability of hydraulic structures and of the population since the drought. Hydrological Sciences Journal, Taylor & Francis, 2010, 55 (3), pp.351-363. ⟨10.1080/02626661003683280⟩. ⟨hal-00566020⟩

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