Articles | Volume 19, issue 6
https://doi.org/10.5194/os-19-1633-2023
https://doi.org/10.5194/os-19-1633-2023
Research article
 | 
29 Nov 2023
Research article |  | 29 Nov 2023

Observations and modeling of tidally generated high-frequency velocity fluctuations downstream of a channel constriction

Håvard Espenes, Pål Erik Isachsen, and Ole Anders Nøst

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Short summary
We show that tidally generated eddies generated near the constriction of a channel can drive a strong and fluctuating flow field far downstream of the channel constriction itself. The velocity signal has been observed in other studies, but this is the first study linking it to a physical process. Eddies such as those we found are generated because of complex coastal geometry, suggesting that, for example, land-reclamation projects in channels may enhance current shear over a large area.