Back to Search
Start Over
Extreme wave runup on a vertical cliff
- Source :
- Geophysical Research Letters. 40:3138-3143
- Publication Year :
- 2013
- Publisher :
- American Geophysical Union (AGU), 2013.
-
Abstract
- Wave impact and run-up onto vertical obstacles are among the most important phenomena which must be taken into account in the design of coastal structures. From linear wave theory, we know that the wave amplitude on a vertical wall is twice the incident wave amplitude with weakly nonlinear theories bringing small corrections to this result. In this present study, however, we show that certain simple wave groups may produce much higher run-ups than previously predicted, with particular incident wave frequencies resulting in run up heights exceeding the initial wave amplitude by a factor of 5, suggesting that the notion of the design wave used in coastal structure design may need to be revisited. The results presented in this study can be considered as a note of caution for practitioners, on one side, and as a challenging novel material for theoreticians who work in the field of extreme wave - coastal structure interaction.
- Subjects :
- geography
geography.geographical_feature_category
010504 meteorology & atmospheric sciences
Field (physics)
Work (physics)
Mechanics
01 natural sciences
010305 fluids & plasmas
Nonlinear system
Geophysics
Amplitude
Airy wave theory
0103 physical sciences
Structure design
Cliff
General Earth and Planetary Sciences
14. Life underwater
Wave group
Geology
0105 earth and related environmental sciences
Subjects
Details
- ISSN :
- 00948276
- Volume :
- 40
- Database :
- OpenAIRE
- Journal :
- Geophysical Research Letters
- Accession number :
- edsair.doi...........38551403f69e9d3111af330d75506484