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    Wave-driven along-channel subtidal flows in a well-mixed ocean inlet

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    jgrc20663.pdf (1.418Mb)
    Date
    2014-05-20
    Author
    Wargula, Anna E.  Concept link
    Raubenheimer, Britt  Concept link
    Elgar, Steve  Concept link
    Metadata
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    Citable URI
    https://hdl.handle.net/1912/6765
    As published
    https://doi.org/10.1002/2014JC009839
    DOI
    10.1002/2014JC009839
    Keyword
     Inlet; Wind waves; Currents; Radiation stress 
    Abstract
    Observations of waves, flows, and water levels collected for a month in and near a long, narrow, shallow (∼ 3000 m long, 1000 m wide, and 5 m deep), well-mixed ocean inlet are used to evaluate the subtidal (periods > 30 h) along-inlet momentum balance. Maximum tidal flows in the inlet were about 1.5 m/s and offshore significant wave heights ranged from about 0.5 to 2.5 m. The dominant terms in the local (across the km-wide ebb shoal) along-inlet momentum balance are the along-inlet pressure gradient, the bottom stress, and the wave radiation-stress gradient. Estimated nonlinear advective acceleration terms roughly balance in the channel. Onshore radiation-stress gradients owing to breaking waves enhance the flood flows into the inlet, especially during storms.
    Description
    Author Posting. © American Geophysical Union, 2014. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Journal of Geophysical Research: Oceans 119 (2014): 2987–3001, doi:10.1002/2014JC009839.
    Collections
    • Applied Ocean Physics and Engineering (AOP&E)
    Suggested Citation
    Article: Wargula, Anna E., Raubenheimer, Britt, Elgar, Steve, "Wave-driven along-channel subtidal flows in a well-mixed ocean inlet", Journal of Geophysical Research: Oceans 119 (2014): 2987–3001, DOI:10.1002/2014JC009839, https://hdl.handle.net/1912/6765
     

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