2024 Volume 80 Issue 17 Article ID: 24-17283
When inundation occurs due to wave overtopping, it is necessary to measure wave run-up heights at the seawall and levee for the evacuation of coastal residents. In this study, the authors conducted wave generating experiment in order to develop a method to measure wave run-up heights using LiDAR. The characteristics of measuring noise and accuracy of LiDAR were examined by compareing the LiDAR data with wave gauge data in the experiment employing 1/25 scale seawall models in which regular waves were generated. As a result of the experiment, point clouds were obtained at the water surface containing bubbles from a surf zone to the seawall under breaking wave conditions. Furthermore, the wave run-up heights could be measured by extracting shoreline locations from point clouds. In addition, point cloud acquisition conditions were examained in comparison with modeled water level data by CADMAS-SURF/3D.
