Transboundary sediment transfer from source to sink using a mineralogical analysis. Case study
Roseires Reservoir, Blue Nile, Sudan
Yasir S.A. Ali (The Hydraulics Research Center, Jubail University College)
Paolo Paron (IHE Delft Institute for Water Education)
A. Crosato (TU Delft - Environmental Fluid Mechanics, IHE Delft Institute for Water Education)
Yasir A. Mohamed (IHE Delft Institute for Water Education, The Hydraulics Research Center)
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Abstract
Sediment accumulation hampers optimal water resources management of reservoirs. In the Roseires Reservoir across the Blue Nile River, in Sudan, about 30% of the storage capacity has been lost by sedimentation before dam heightening (2012), despite regular sediment sluicing and flushing. At the same time, increasing soil erosion in the upper river basin in Ethiopia is significantly reducing land productivity.