Ocean Science
Ocean Science
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Articles | Volume 19, issue 6
Articles | Volume 19, issue 6
https://doi.org/10.5194/os-19-1633-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/os-19-1633-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 19, issue 6
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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Cited articles

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Albagnac, J., Moulin, F. Y., Eiff, O., Lacaze, L., and Brancher, P.: A three-dimensional experimental investigation of the structure of the spanwise vortex generated by a shallow vortex dipole, Environ. Fluid Mech., 14, 957–970, 2014. a
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Børve, E., Isachsen, P. E., and Nøst, O. A.: Rectified tidal transport in Lofoten–Vesterålen, northern Norway, Ocean Sci., 17, 1753–1773, https://doi.org/10.5194/os-17-1753-2021, 2021. a, b
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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.
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Oceanography at coastal scales: modelling, coupling, observations,...