CHARACTERISATION OF INFRAGRAVITY WAVES AND THEIR ASSOCIATED HYDRODYNAMICS PROCESSES IN MESO-MACRO TIDAL LAGOON

Paul Bayle; Alexandre Nicolae Lerma; Xavier Bertin; Nadia Sénéchal; Florian Ganthy

doi:10.9753/icce.v37.management.159

No. 37 (2022), Coastal Management, Environment, and Risk

No. 37 (2022)

CHARACTERISATION OF INFRAGRAVITY WAVES AND THEIR ASSOCIATED HYDRODYNAMICS PROCESSES IN MESO-MACRO TIDAL LAGOON

Coastal Management, Environment, and Risk

Published 2023-09-01

Paul Bayle
Alexandre Nicolae Lerma
Xavier Bertin
Nadia Sénéchal
Florian Ganthy

Paul Bayle

Alexandre Nicolae Lerma

Xavier Bertin

Nadia Sénéchal

Florian Ganthy

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How to Cite

CHARACTERISATION OF INFRAGRAVITY WAVES AND THEIR ASSOCIATED HYDRODYNAMICS PROCESSES IN MESO-MACRO TIDAL LAGOON. (2023). Coastal Engineering Proceedings, 37, management.159. https://doi.org/10.9753/icce.v37.management.159

Abstract

Infragravity (hereafter ‘IG’) waves are ocean waves related to the presence of groups in incident shortwaves. The importance of IG waves in the nearshore and their role in beach morphodynamics have been widely documented over the last few decades (Bertin et al., 2018) while in contrast, studies on characterisation of IG waves and related impacts in tidal inlets are scarce and have only recently begun to be addressed (Williams and Stacey, 2016). Nonetheless, existing studies tend to show that IG waves in tidal inlets can play an important role in the short and long-term hydro-morphodynamics of coastal lagoons. The current study presents the first large scale field measurements and analysis of IG waves propagation and characteristics in a meso-macro tidal lagoon/inlet.

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References

Bertin, X., Martins, K., de Bakker, A., Chataigner, T., Guérin, T., Coulombier, T., and de Viron, O. (2020). Energy transfers and reflection of infragravity waves at a dissipative beach under storm waves. Journal of Geophysical Research: Oceans, 125.

Bertin, X., de Bakker, A., van Dongeren, A., Coco, G., André, G., Ardhuin, F., Bonneton, P., Bouchette, F., Castelle, B., Crawford, W. C., Davidson, M., Deen, M., Dodet, G., Guérin, T., Inch, K., Leckler, F., McCall, R., Muller, H., Olabarrieta, M., Roelvink, D., Ruessink, G., Sous, D., Stutzmann, É., & Tissier, M. (2018). Infragravity waves: From driving mechanisms to impacts. Earth-Science Reviews, 177, 774-799.

Martins, K., Bonneton, P., Lannes, D. and Michallet, H. (2021). Relation between orbital velocity, pressure, and surface elevation in nonlinear nearshore water waves. Journal of Physical Oceanography, 51, 3539-3556.

Oh, J.E., Jeong, W.M., Chang, S.Y. and Oh, S.H. (2020). On the separation period discriminating gravity and infragravity waves off Gyeongpo beach, Korea. J. of Mar. Sci. and Eng., 8, 167.

Williams, M. E., & Stacey, M. (2016). Tidally discontinuous ocean forcing in bar-built estuaries: The interaction of tides, infragravity motions, and frictional control. Journal of Geophysical Research: Oceans, 121, 571– 585.

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CHARACTERISATION OF INFRAGRAVITY WAVES AND THEIR ASSOCIATED HYDRODYNAMICS PROCESSES IN MESO-MACRO TIDAL LAGOON

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