QUANTIFYING THE INFLUENCE OF TRANSITIONS ON GRASS COVER EROSION BY OVERTOPPING WAVES
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Warmink, J., Bergeijk, V. van, Frankena, M., Steeg, P. van, & Hulscher, S. (2020). QUANTIFYING THE INFLUENCE OF TRANSITIONS ON GRASS COVER EROSION BY OVERTOPPING WAVES. Coastal Engineering Proceedings, (36v), papers.39. https://doi.org/10.9753/icce.v36v.papers.39

Abstract

Transitions in vegetated dike covers, such as geometry changes or roughness differences, are identified as weak spots in dikes for grass cover erosion by wave overtopping. Although several erosion models exist to model grass cover erosion on dikes, it is unclear how the effect of transitions on grass cover erosion must be included in these models. Therefore, we have developed a model approach to analyze the effects of transitions on grass cover erosion using field experimental data and to derive representative influence factors for one transition type. The model approach has been applied to the transition at the landward toe where the slope changes to a horizontal plane. The model approach is general applicable and can be transferred easily to other transitions. The derived factors can be used to improve predictions of dike cover erosion near transitions.

Recorded Presentation from the vICCE (YouTube Link): https://youtu.be/YVH6PN4-Er0
https://doi.org/10.9753/icce.v36v.papers.39
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