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| one publication added to basket [226982] |
Using a sand–mud model to hindcast the morphology near Waarde, the Netherlands
In: Maritime Engineering. Thomas Telford: London (1 Heron Quay, London, E14 4JD). ISSN 1741-7597; e-ISSN 1751-7737, meer
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| Author keywords |
mathematical modelling; coastal engineering; hydraulics & hydrodynamics |
| Abstract |
Due to the construction of two cross-shore groynes near Waarde in the Western Scheldt estuary, the Netherlands, morphological changes in the area have occurred. A mud flat has developed between the groynes and at the tip of the groynes scour has occurred which has contributed to channel migration. Both the sand and mud fraction have contributed to this change. In this paper a process-based morphological model is presented that can reproduce most morphological changes thanks to the fact that both fractions are taken into account, as well as the interaction between sand and mud. Using the model, 5 years of morphological changes were simulated from the construction of the groynes onwards. The Brier-skill score of the erosion/sedimentation pattern is 0·35, which means that the model has significant skill and can be classified as reasonable. A regression coefficient of 0·66 is found for the observed and modelled mud content in the bed after 5 years, which means that the model can reproduce the mud content reasonably well for most locations. The model can clearly distinguish between a sand- or mud-dominated area. |
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