Articles | Volume 22, issue 1
https://doi.org/10.5194/os-22-1-2026
https://doi.org/10.5194/os-22-1-2026
Research article
 | 
05 Jan 2026
Research article |  | 05 Jan 2026

Internal tide loss of coherence in a realistic simulation of the North Atlantic

Adrien Bella, Noé Lahaye, and Gilles Tissot

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Coupled estimation of internal tides and turbulent motions via statistical modal decomposition
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Ocean Sci., 21, 807–827, https://doi.org/10.5194/os-21-807-2025,https://doi.org/10.5194/os-21-807-2025, 2025
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Cited articles

Arbic, B. K., Lyard, F., Ponte, A., Ray, R. D., Richman, J. G., Shriver, J. F., Zaron, E., and Zhao, Z.: Tides and the SWOT Mission: Transition from Science Definition Team to Science Team, Civil and Environmental Engineering Faculty Publications and Presentations, p. 10, https://pdxscholar.library.pdx.edu/cengin_fac/336/ last access: 20 December 2025, 2015. a
Bella, A., Lahaye, N., and Tissot, G.: Internal Tides Energy Transfers and Interactions with the Mesoscale Circulation in Two Contrasted Areas of the North Atlantic, in: Stochastic Transport in Upper Ocean Dynamics II, edited by: Chapron, B., Crisan, D., Holm, D., Mémin, E., and Radomska, A., Mathematics of Planet Earth, Springer Nature Switzerland, Cham, 16 pp., ISBN 978-3-031-40094-0, https://doi.org/10.1007/978-3-031-40094-0_1, 2024. a, b, c, d
Bendinger, A., Cravatte, S., Gourdeau, L., Vic, C., and Lyard, F.: Regional modeling of internal-tide dynamics around New Caledonia – Part 2: Tidal incoherence and implications for sea surface height observability, Ocean Science, 21, 1943–1966, https://doi.org/10.5194/os-21-1943-2025, 2025. a, b
Brodeau, L., Sommer, J. L., and Albert, A.: ocean-next/eNATL60: Material describing the set-up and the assessment of NEMO-eNATL60 simulations, Zenodo [code], https://doi.org/10.5281/zenodo.4032732, 2020. a, b, c
Buijsman, M. C., Arbic, B. K., Richman, J. G., Shriver, J. F., Wallcraft, A. J., and Zamudio, L.: Semidiurnal Internal Tide Incoherence in the Equatorial Pacific, Journal of Geophysical Research: Oceans, 122, 5286–5305, https://doi.org/10.1002/2016JC012590, 2017. a, b, c
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Short summary
Internal tides are perturbations of the density and current in the ocean that are generated when the astronomical flows over the irregular bottom topography, and propagate in the stratified ocean under the form of waves. They then interact with other types of currents, which disturb their properties – phase and amplitude – and results in a loss of regularity, called incoherence. This paper investigates this mechanism using numerical simulations.
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