EGU21-4470
https://doi.org/10.5194/egusphere-egu21-4470
EGU General Assembly 2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Extreme wave run-up on steep rock coasts

Henrik Kalisch1, Maria Bjørnestad1, Volker Roeber1,2, and Francesco Lagona1,3
Henrik Kalisch et al.
  • 1Department of Mathematics, University of Bergen, Bergen, Norway (henrik.kalisch@math.uib.no)
  • 2SIAME, Université de Pau et des Pays de l’Adour, Anglet, France
  • 3Department of Political Sciences, Roma Tre University, Rome, Italy

Some rock coasts around the world feature very steep slopes immediately adjacent to the shore. If surface waves propagate on such a steep bottom slope, they experience only slight amplification until very close to shore. In this situation, unexpectedly large wave events may occur near the shore. We combine insight from solutions of a simplified mathematical model with statistical analysis and with observations at the Norwegian coast to conclude that even under moderate wave conditions, very large run-up can occur at the shore.

M. Bjørnestad and H. Kalisch, “Extreme wave runup on a steep coastal profile,” AIP Advances 10, 105205 (2020)

How to cite: Kalisch, H., Bjørnestad, M., Roeber, V., and Lagona, F.: Extreme wave run-up on steep rock coasts, EGU General Assembly 2021, online, 19–30 Apr 2021, EGU21-4470, https://doi.org/10.5194/egusphere-egu21-4470, 2021.