Under CopyrightBernard, ThomasThomasBernardKrol, OliverOliverKrolRauschenbach, ThomasThomasRauschenbachLinke, HartmutHartmutLinkeHe, GuopingGuopingHeMu, HongHongMu2022-03-1117.1.20122011https://publica.fraunhofer.de/handle/publica/37299110.1109/ISWREP.2011.589321610.24406/publica-r-372991Sustainable management of water resources and a safe supply of drinking water will play a key role for the development of the human prosperity in the following decades. This paper presents an optimal control approach for the management of the total water resources in a fast developing region under a critical water shortage. A model of the water allocation system is developed which considers both surface and groundwater resources and the distribution network. The spatially distributed groundwater model is considered as a reduced model of the complex 3D Finite Element model. Hence the optimization problem, which is formulated as large scale structured non-linear programming problem, can be solved in an appropriate computation time. The performance of the proposed concept is demonstrated by close to reality optimization scenarios.endecision support systemlarge scale optimizationmodel reductionwater allocation modelling004670Model based sustainable management of regional water supply systemsconference paper