Abstract
It is expected that the Grand Ethiopian Renaissance Dam (GERD) will be completed and put into operation within few years. The pattern of sedimentation will be affected as well as the amount of sediment accumulation in the Aswan High Dam Reservoir (AHDR). Also, the life time span of AHDR will be greatly affected. In this chapter, a two-dimensional numerical model CCHE2D is applied to study the scouring and silting processes in AHDR from km 500 to km 350 upstream Aswan High Dam (AHD). The sediment transport is simulated in terms of the depth-averaged sediment concentration. The different cross sections along Nubia Lake (Sudanese part of the reservoir) are predicted for the year 2010 and the year 2020. Statistical indicators showed that the model results are accurate enough to be used to predict the morphological changes and the life time span of AHDR. The results show that the life time span of dead zone (LTSDZ) is 254 years, while life time span of life zone (LTSLZ) is 964 years.
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