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    Three-dimensional simulation of shoaling internal solitary waves and their influence on particle transport in the southern Red Sea

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    2020JC016335.pdf
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    Description:
    Accepted Article
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    Type
    Article
    Authors
    Guo, Daquan cc
    Zhan, Peng cc
    Hoteit, Ibrahim cc
    KAUST Department
    Biological and Environmental Science and Engineering (BESE) Division
    Earth Fluid Modeling and Prediction Group
    Earth Science and Engineering Program
    Physical Science and Engineering (PSE) Division
    Red Sea Research Center (RSRC)
    Date
    2021-04-04
    Online Publication Date
    2021-04-04
    Print Publication Date
    2021-04
    Embargo End Date
    2021-09-22
    Submitted Date
    2020-04-21
    Permanent link to this record
    http://hdl.handle.net/10754/668225
    
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    Abstract
    The shoaling process of a group of internal solitary waves (ISWs) in the southern Red Sea is simulated with a 3D, non-hydrostatic, high-resolution MIT general circulation model (MITgcm). The breaking and dissipation processes are well reproduced, in which a positive tail forms behind and locally moves the interface upward, causing the transformation of wave polarity as it moves onshore. With the step-like structure followed, the wave eventually evolve into smaller water bores. Combined with the parameters of the leading wave slope (Sw) of about 0.07 and topography slope (S) of about 0.01, the shoaling is suggested to follow a mild breaking process. The particle transport during the shoaling process is further examined quantitatively using the Connectivity modelling system (CMS). 38400 particles are released at six different vertical layers in the main shoaling domain. Most of the particles are transported up-and-down following the wave oscillation process then settle within 10-20 m around the original released depth. For the particles inside the breaking area, the oscillation process becomes more complex and intensified, and eventually a great portion of these particles settle far away from their released locations. The time-integrated transport distance, Ti, and the direct transport distance, Ts, are also analyzed. With Ti almost 20 times to Ts in vertical, continuous up-and-down movements are suggested during the shoaling process.
    Citation
    Guo, D., Zhan, P., & Hoteit, I. (2021). Three-dimensional simulation of shoaling internal solitary waves and their influence on particle transport in the southern Red Sea. Journal of Geophysical Research: Oceans. doi:10.1029/2020jc016335
    Publisher
    American Geophysical Union (AGU)
    Journal
    Journal of Geophysical Research: Oceans
    DOI
    10.1029/2020jc016335
    Additional Links
    https://onlinelibrary.wiley.com/doi/10.1029/2020JC016335
    ae974a485f413a2113503eed53cd6c53
    10.1029/2020jc016335
    Scopus Count
    Collections
    Articles; Biological and Environmental Science and Engineering (BESE) Division; Red Sea Research Center (RSRC); Physical Science and Engineering (PSE) Division; Earth Science and Engineering Program

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