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Simulation of long-term morphodynamics of the Western Scheldt
Dam, G.; Van der Wegen, M.; Roelvink, D.; Labeur, R.-J.; Bliek, B. (2015). Simulation of long-term morphodynamics of the Western Scheldt, in: Scheldt Estuary: physics and integrated management - Special Session on of the 36th IAHR WORLD CONGRESS, 28 June – 3 July, 2015, Delft and The Hague, the Netherlands. pp. 71-79
In: (2015). Scheldt Estuary: physics and integrated management - Special Session on of the 36th IAHR WORLD CONGRESS, 28 June – 3 July, 2015, Delft and The Hague, the Netherlands. Deltares: Delft. 110 pp., more

Available in Authors 
Document type: Conference paper

Author keywords
    Morphodynamics, Estuaries, Numerical models, Long-term, Hindcast

Authors  Top 
  • Dam, G., more
  • Van der Wegen, M., more
  • Roelvink, D.
  • Labeur, R.-J.
  • Bliek, B., more

Abstract
    In this paper we use a 2D process-based model to hindcast morphodynamic behavior of the Western Scheldt estuary. The periods of 1860-1970 (110 years) and 1905-1970 (65 years) are simulated. We compare the results to a historically unique dataset of bathymetric maps. The results show that the model results get better over time. The results show that the model is capable of simulating the large scale erosion and sedimentation that has occurred in the considered period. We attribute this to the self-organization of both the model and reality. The interaction between the major tidal forcing and the estuaries' fixed outline overrules other uncertainties over long time scales. Our research shows that process-based models applied in confined environments and under constant forcing conditions may perform well especially on long time scales. This makes them potentially suitable for centennial time scale forecasts related to, for example, climate change.

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