Author :
Mawuli LUMOR
This thesis presents an evaluation of the impact of climate projections on streamflows and sediment loads in the White Volta Basin using the Soil Water Assessment Tool (SWAT) coupled with an ensemble of three Regional Climate Models (RCMs) under the CORDEX-Africa Project. The RCM-GCMs ensemble projects a future (2031-2050) rise in temperature by 2.3°C and 2.7°C under RCP4.5 and RCP8.5 respectively relative to the baseline (1990-2010). Surface runoff is also projected to increase on average by 23.8% and 27.8% whereas evapotranspiration is projected to decline on average by 1.5% and 1.0% under RCP4.5 and RCP8.5 respectively. Sediment loads in the basin is projected to increase on average by 24.7% and 26.3% under RCP4.5 and RCP8.5 respectively.