HOW VEGETATED FORESHORES AFFECT PROBABILITIES AND CONSEQUENCES OF DIKE FAILURE

Vincent Vuik,Sebastiaan N Jonkman

doi:10.9753/icce.v36.risk.61

Abstract

Coastal ecosystems, such as salt marshes, mangrove forests and reefs, can contribute to flood risk reduction by surge attenuation, wave energy dissipation and erosion reduction (Temmerman et al. 2013). Such ecosystems can work stand-alone, but here we consider hybrid engineering solutions, where ecosystems are utilized as vegetated foreshores along engineered structures (Fig. 1).

Highlights

Coastal ecosystems, such as salt marshes, mangrove forests and reefs, can contribute to flood risk reduction by surge attenuation, wave energy dissipation and erosion reduction (Temmerman et al 2013)
This framework consists of the following components: 1. Boundary conditions; 2
A model to compute dike failure due to wave overtopping over the dike, or due to wave impact on the grass or asphalt revetment on the outer slope of the dike

Summary

Introduction

Coastal ecosystems, such as salt marshes, mangrove forests and reefs, can contribute to flood risk reduction by surge attenuation, wave energy dissipation and erosion reduction (Temmerman et al 2013). A model to compute dike failure due to wave overtopping over the dike, or due to wave impact on the grass or asphalt revetment on the outer slope of the dike. Flood risk in embanked areas is defined as the product of probability and consequences of dike failure.

Results

Conclusion