Beach-dune modelling in support of Building with Nature for an integrated spatial design of urbanized sandy shores
Kathelijne Wijnberg (University of Twente)
Daan Poppema (University of Twente)
Jan Mulder (University of Twente)
J. van Bergen (TU Delft - Landscape Architecture)
Geert Campmans (University of Twente)
Filipe Galiforni-Silva (University of Twente)
Suzanne J.M.H. Hulscher (University of Twente)
Paran Pourteimouri (University of Twente)
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Abstract
The long-term physical existence of sandy shores critically depends on a balanced sediment budget. From the principles of Building with Nature it follows that a sustainable protection of sandy shores should employ some form of shore nourishment. In the spatial design process of urbanized sandy shores, where multiple functions must be integrated, the knowledge and the prediction of sediment dynamics and beach-dune morphology thus play an essential role. This expertise typically resides with coastal scientists who have condensed their knowledge in various types of morphological models that serve different purposes and rely on different assumptions, thus have their specific strengths and limitations. This paper identifies morphological information needs for the integrated spatial design of urbanized sandy shores using BwN principles, outlines capabilities of different types of morphological models to support this and identifies current gaps between the two. A clear mismatch arises from the absence of buildings and accompanying human activities in current numerical models simulating morphological developments in beach-dune environments.
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