Articles | Volume 21, issue 6
https://doi.org/10.5194/os-21-3165-2025
https://doi.org/10.5194/os-21-3165-2025
Research article
 | 
26 Nov 2025
Research article |  | 26 Nov 2025

Wave-driven amplification of surf-zone bottom stress on rough seabeds

Damien Sous, Marc Pezerat, Solène Dealbera, Héloïse Michaud, and Denis Morichon

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Cited articles

Apotsos, A., Raubenheimer, B., Elgar, S., Guza, R., and Smith, J. A.: Effects of wave rollers and bottom stress on wave setup, Journal of Geophysical Research: Oceans, 112, https://doi.org/10.1029/2006JC003549, 2007. a
Asher, S., Niewerth, S., Koll, K., and Shavit, U.: Vertical variations of coral reef drag forces, Journal of Geophysical Research: Oceans, 121, 3549–3563, 2016. a
Becker, J., Merrifield, M., and Ford, M.: Water level effects on breaking wave setup for Pacific Island fringing reefs, Journal of Geophysical Research: Oceans, 119, 914–932, 2014. a
Boles, E., Khrizman, A., Hamilton, J., Mucciarone, D., Dunbar, R., Koseff, J., and Monismith, S.: Bottom stress and drag on a shallow coral reef, Journal of Geophysical Research: Oceans, 129, e2024JC021528, https://doi.org/10.1029/2024JC021528, 2024. a
Bonneton, P., Lannes, D., Martins, K., and Michallet, H.: A nonlinear weakly dispersive method for recovering the elevation of irrotational surface waves from pressure measurements, Coastal Engineering, 138, 1–8, https://doi.org/10.1016/j.coastaleng.2018.04.005, 2018. a
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Short summary
The circulation of nearshore water is of primary importance for the health of coastal ecosystems and the coastal hazards, such as erosion. The present study focuses on the role played by bottom friction, which is particularly important in rocky or coral reef areas. Using field observations and numerical simulations, we show that the waves are able to increase the bottom friction and therefore affect the whole circulation and water level dynamics.
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