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    Impact of current-wave interaction on storm surge simulation : a case study for Hurricane Bob

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    jgrc20207.pdf (1.807Mb)
    Date
    2013-05-30
    Author
    Sun, Yunfang  Concept link
    Chen, Changsheng  Concept link
    Beardsley, Robert C.  Concept link
    Xu, Qichun  Concept link
    Qi, Jianhua  Concept link
    Lin, Huichan  Concept link
    Metadata
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    Citable URI
    https://hdl.handle.net/1912/6306
    As published
    https://doi.org/10.1002/jgrc.20207
    DOI
    10.1002/jgrc.20207
    Keyword
     Hydrodynamic modeling; Surface waves and tides; Tsunamis; Storm surges 
    Abstract
    Hurricane Bob moved up the U.S. east coast and crossed over southern New England and the Gulf of Maine [with peak marine winds up to 54 m/s (100 mph)] on 19–20 August 1991, causing significant damage along the coast and shelf. A 3-D fully wave-current-coupled finite-volume community ocean model system was developed and applied to simulate and examine the coastal ocean responses to Hurricane Bob. Results from process study-oriented experiments showed that the impact of wave-current interaction on surge elevation varied in space and time, more significant over the shelf than inside the inner bays. While sea level change along the coast was mainly driven by the water flux controlled by barotropic dynamics and the vertically integrated highest water transports were essentially the same for cases with and without water stratification, the hurricane-induced wave-current interaction could generate strong vertical current shear in the stratified areas, leading to a strong offshore transport near the bottom and vertical turbulent mixing over the continental shelf. Stratification could also result in a significant difference of water currents around islands where the water is not vertically well mixed.
    Description
    Author Posting. © American Geophysical Union, 2013. 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 118 (2013): 2685–2701, doi:10.1002/jgrc.20207.
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    • Physical Oceanography (PO)
    Suggested Citation
    Journal of Geophysical Research: Oceans 118 (2013): 2685–2701
     

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