Release Policies for Multipurpose Reservoirs during Different Climatic Fluctuations

Abstract

ABSTRACT The major purpose of reservoirs is to alter the temporal and spatial availability of water in order to provide the necessary amount of water when and where needed. Climatic fluctuations affect both the availability and reliability of the water stored in reservoirs. Therefore, optimal operation of such reservoirs is very important under different climatic uncertainties. This article evaluates the impact of climatic fluctuations on the water supply and demand of the Blue Nile reservoir system in the Sudan. The system is composed of two reservoirs. Roseires and Sennar, in series. Three scenarios are analyzed. The first reflects the actual climate and operating conditions. The second scenario shows the impact of different generated climatic fluctuations under the actual operating conditions. In the third scenario, alternate management policies are proposed in an attempt to reduce the impact of shortages on the system.