River basins studied by the Aquaplan project team
(1) Tigris and Euphrates (2) Zambezi (3) Mekong (4) Nile (6) Tana (7) Mahaweli
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Euphrates river basin
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 Irrigation canal from Tabqa reservoir (left bank) This study balances the positive and negative impacts of increased storage capacity and irrigation water withdrawals in Turkey (GAP) on the performance of the Tabqa multipurpose scheme in Syria. A two-step modelling approach is adopted to handle the absence of coordination in the operation of the Turkish and Syrian water resources systems: (1) a large scale optimization model (SDDP) determines the optimal release policies of the cascade of reservoirs in Turkey. (2) river discharges at the Turkish/Syrian border are then used as inputs in a discrete SDP model for the Tabqa scheme in Syria. The analysis of simulation results reveals, amongst other things, that if the Southeastern Anatolia Project (GAP) is completed as planned, the risk of not meeting the annual Syrian energy target increases substantially (up to 60%).
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Euphrates river basin
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 Wheat and cotton symbol analyzes the impacts of the Southeastern Anatolia Project (Turkey) on the hydrological regime of the Euphrates river . To achieve this, three development scenarios are constructed and water allocations policies are then optimized for each reservoir using stochastic dual dynamic programming. Simulation results using 50 hydrologic scenarios show that the complete development of the irrigation projects in Turkey would reduce the total energy output by 6.5% and will increase the risk of not meeting minimum outflow at the Syrian border from 5% to 25%. |
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Hanjiang River basin
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Mr Wang Jun (China) has recently completed his MSc thesis entitled “Optimal Operation of the Hydropower System in the Hanjiang River after MRP” at UNESCO-IHE. Mr Wang has used a SDDP model to analyze the impact of the Middle Route Project, i.e. South to North water transfer, on the performance of existing and planned hydropower schemes in the Hanjiang river. |
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Mahaweli river basin
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Mr Nalin Pothuwila has recently completed his MSc thesis entitled “Coordinated Management of the Mahaweli River Basin in Sri-Lanka” at UNESCO-IHE. The objective of this study was to determine optimal allocation policies between the hydropower and irrigation sectors in the Mahaweli river basin taking into account the hydrologic uncertainty. A SDDP model with 6 reservoirs, 6 hydropower stations, and two irrigation diversions was developed. |
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