Ocean Science
Ocean Science
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Articles | Volume 18, issue 4
Articles | Volume 18, issue 4
https://doi.org/10.5194/os-18-1073-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/os-18-1073-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 18, issue 4
Technical note
 | 
19 Jul 2022
Technical note |  | 19 Jul 2022

Technical note: On seasonal variability of the M2 tide

Richard D. Ray

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Cited articles

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Bij de Vaate, I., Vasulkar, A. N., Slobbe, D. C., and Verlaan, M.: The influence of Arctic landfast ice on seasonal modulation of the M2 tide, J. Geophys. Res.-Oceans, 126, e2020JC016630, https://doi.org/10.1029/2020JC016630, 2021. a
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Calvo, M., Rosat, S., and Hinderer, J.: Tidal spectroscopy from a long record of superconducting gravimeters at Strasbourg, in: International Symposium on Earth Sciences for Future Generations, edited by: Freymueller, J. and Sanchez, L., 131–136, Springer, https://doi.org/10.1007/1345_2016_223, 2016. a
Cartwright, D. E.: Tides: A Scientific History, Cambridge Univ. Press, Cambridge, 1999. a
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Seasonal variability of the M2 ocean tide can be detected at many ports. The physical mechanisms underlying seasonality, in the broadest terms, are astronomical, frictional–advective interactions, and climate processes. Some of these induce annual modulations, some semiannual, in amplitude, phase, or both. This note reviews how this occurs and gives an example from each broad category. Phase conventions and their relationship with causal mechanisms, as well as nomenclature, are also addressed.
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