THE IMPACT OF THE GERD DAM ON THE SEDIMENT TRANSPORT DOWNSTREAM RIVER NILE DAMS WITH SPECIAL REFERENCE TO MEROWE RESERVOIR

Bouran A.H.Mohammed, El-Sadig M.A Sharfi, Mansour A.I.Morods

Abstract


The aim of this paper is to study the impact GERD), which located inSudanese-Ethiopian borders, on the sedimentation phenomena within the downstream reservoirs, taking Merowe Dam as a case study. The impact was analyzed using River Analysis software (HecRAS 5.0.4) to construct a model for the expected hydrological conditions.. The hydrodynamic model was coupled with the sediment model to route sedimentation process within the reservoir for current dam operation rules. The impact was represented in terms of the morphological river bed changes and the deposited sediment volumes within the reservoir as well as the expected yearly sedimentation rate before and after GERD construction.

Keywords


GERD; River Nile; Merowe Dam; Reservoir Sedimentation; HecRAS

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