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To achieve a good status of the Ems-Dollard Estuary knowledge on the mud dynamics in this region has to be improved, and the reasons for the increase in turbidity have to be identified before 2015. Therefore Rijkswaterstaat has initiated the project "Onderzoek slibhuishouding Eems-Dollard" (Research mud dynamics Ems-Dollard). This project explores the reasons for the historic increase in turbidity, and which measures can be designed to improve the water quality in the area. Part of this research is the development of an effect-chainmodel. This report describes the set up of the hydrodynamic model of the effect-chain model. This model is used to drive the
sediment transport model, the water quality model, and in a later stage of the project to explain the current state of turbidity in the Ems Estuary and quantify the effects of mitigating measures.