الفهرس | Only 14 pages are availabe for public view |
Abstract The unilateral announcement of the construction of the Grand Ethiopian Renaissance Dam (GERD) with its sheer size at the stem of the Blue Nile that contributes the lion’s share of the streamflow at Aswan leads to an immense debate between local and scientific communities not only in the basin but also all over the world.This study assesses the impacts of GERD under a set of proposed filling and operating techniques on the downstream riparian. A cooperative management policy between the GERD and the High Aswan Dam (HAD) that aims to protect a certain water level in the HAD reservoir has been investigated. Not only a deterministic but also a probabilistic (stochastic) approach has been used to represent the future hydrological conditions during both filling and operating periods. A river basin management model called Riverware has been used to simulate the response of the Nile River system after attaching the GERD with different reservoir filling and operating techniques and under different future hydrological conditions.The results show potential drastic negative impacts on both short and long term on the downstream in all non-cooperative scenarios. In addition, it illustrates the importance of the cooperative policy between the GERD and the HAD regardless of the filling or the operating technique in minimizing these potential negative impacts on the downstream riparian |