AbstractDesign criteria for coastal defenses exposed to wave overtopping are usually restricted to the assessment of mean discharges and maximum individual overtopping volumes, however it is not possible to give unambiguous or precise limits to tolerable overtopping for all kind of layouts (EurOtop, 2018). A few studies (e.g. Endoh and Takahashi, 1994) analyzed the relationship between wave overtopping flows and hazard levels for people at the crest of sea dikes. Sandoval (2016) confirmed that one single value of admissible mean discharge or individual overtopping volume is not a sufficient indicator of the hazard, but detailed characterization of flow velocities and depths is required. This work presents the results of an experimental campaign aiming at characterizing the flow characteristics associated to maximum individual overtopping volumes for an urbanized stretch of a town along the Catalan coast, where a bike path and a railway run along the coastline, exposed to significant overtopping events every stormy season.
Recorded Presentation from the vICCE (YouTube Link): https://youtu.be/DwVl9wFJoq0
Suzuki T., Altomare C., Yasuda T., Verwaest T. Overtopping Metrics and Coastal Safety: Characterization of Overtopping Waves on Sea Dikes with Gentle and Shallow Foreshores. J. Mar. Sci. Eng. 2020, 8 (10), 752. https://doi.org/10.3390/jmse8100752
Altomare C., Laucelli D.B., Mase H., Gironella, X. Determination of Semi-Empirical Models for Mean Wave Overtopping Using an Evolutionary Polynomial Paradigm. J. Mar. Sci. Eng. 2020, 8, 570. https://doi.org/10.3390/jmse8080570
Altomare C., Gironella X., Suzuki T., Viccione G., Saponieri, A. Overtopping Metrics and Coastal Safety: A Case of Study from the Catalan Coast. J. Mar. Sci. Eng. 2020, 8, 556. https://doi.org/10.3390/jmse8080556
Endoh, K. and Takahashi, S. (1995). Numerically Modeling Personnel Danger on a Promenade Breakwater Due to Overtopping Waves. 24th ICCE Proceedings.
EurOtop (2018). Manual on wave overtopping of sea defences and related structures. An overtopping manual largely based on European research, but for worldwide application. Van der Meer, J.W., Allsop, N.W.H., Bruce, T., De Rouck, J., Kortenhaus, A., Pullen, T., Schüttrumpf. Sandoval, C. (2016) Direct personnel hazard in wave overtopping flows at seadikes. PhD thesis.
Zijlema, M., Stelling, G., Smit, P. (2011) SWASH: An operational public domain code for simulating wave fields and rapidly varied flows in coastal waters. Coast. Eng., 58, 992-1012.