Author(s): Jong-Yoon Mun; Wan-Hee Cho; Khawar Rehman

Linked Author(s): Jong-Yoon Mun, Khawar Rehman

Keywords: Wave overtopping coastal hazard numerical modelling risk assessment coastal flood

Abstract: Wave overtopping is a major coastal hazard that poses serious threat to pedestrians visiting the coastal structures’ crest area as well as facilities located in the vicinity. Despite its serious nature, a reliable and standard tool for quantification of the risk to pedestrians is lacking mainly due to lack of diverse and global overtopping database. Considering the projected increase in number and intensity of coastal inundation events, this study aims to analyze and compare risk assessment framework for pedestrians due to overtopping using a more conventional parametric approach as well as process-based methods, which are still developing. A multitude of numerical models are used in this study including SWAN (simulating waves nearshore), SWASH (simulating waves till shore), and DualSPHysics with the objectives of augmenting the overtopping database as well as to improve prediction of wave propagation and understand wave-structure interaction dynamics under process-based learning. Overtopping hazard indicators obtained from numerical under scenario modeling are analyzed to quantify risk to pedestrians. The proposed risk assessment framework can be used to gain detailed insights into wave overtopping dynamics by applying advanced techniques for overtopping prediction, hazard indicators interaction, and risk assessment methods with an aim to enhance public safety through early warning system.

DOI:

Year: 2025