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Ocean Science An interactive open-access journal of the European Geosciences Union
Ocean Sci., 12, 355-368, 2016
https://doi.org/10.5194/os-12-355-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
Research article
07 Mar 2016
Continuous seiche in bays and harbors
Joseph Park1, Jamie MacMahan2, William V. Sweet3, and Kevin Kotun1 1National Park Service, 950 N. Krome Ave, Homestead, FL, USA
2Naval Postgraduate School, 833 Dyer Rd., Monterey, CA, USA
3NOAA, 1305 East West Hwy, Silver Spring, MD, USA
Abstract. Seiches are often considered a transitory phenomenon wherein large amplitude water level oscillations are excited by a geophysical event, eventually dissipating some time after the event. However, continuous small-amplitude seiches have been recognized which raises a question regarding the origin of continuous forcing. We examine six bays around the Pacific where continuous seiches are evident and, based on spectral, modal, and kinematic analysis, suggest that tidally forced shelf resonances are a primary driver of continuous seiches.

Citation: Park, J., MacMahan, J., Sweet, W. V., and Kotun, K.: Continuous seiche in bays and harbors, Ocean Sci., 12, 355-368, https://doi.org/10.5194/os-12-355-2016, 2016.
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Short summary
Bays and harbors naturally resonate with standing waves, known as seiches. Seiches are usually considered temporary, however, we identify small-amplitude, continuously present seiches in six bays around the Pacific and suggest that tidally forced, continental shelf resonances are a primary driver of continuous seiches.
Bays and harbors naturally resonate with standing waves, known as seiches. Seiches are usually...
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