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  • Numerical Study of the Hydrodynamic and Sediment Transport Process in a Subtropical Water Reservoir: the Impacts of Storms and Winds

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    Accepted Manuscript (AM)
    Author(s)
    Wang, Xinchen
    Zhang, Hong
    Bertone, Edoardo
    Stewart, Rodney A
    O'Halloran, Kelvin
    Griffith University Author(s)
    Zhang, Hong
    Bertone, Edoardo
    Stewart, Rodney A.
    Year published
    2020
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    Abstract
    A three-dimensional (3D) numerical model was developed to investigate the thermodynamic and sediment processes in a subtropical drinking water reservoir. Data-driven models were also established to generate the inflow conditions. The modelling outputs revealed that climatic forces such as storms and winds significantly impact lake stratification and mixing processes. The sediment transport is driven by storm events, during which sediment delivery to the reservoir is dominated by allochthonous flux. The sediments are transported from riverine zones to transition zones and finally to lacustrine zones. It is estimated that ...
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    A three-dimensional (3D) numerical model was developed to investigate the thermodynamic and sediment processes in a subtropical drinking water reservoir. Data-driven models were also established to generate the inflow conditions. The modelling outputs revealed that climatic forces such as storms and winds significantly impact lake stratification and mixing processes. The sediment transport is driven by storm events, during which sediment delivery to the reservoir is dominated by allochthonous flux. The sediments are transported from riverine zones to transition zones and finally to lacustrine zones. It is estimated that sediment accumulation could have reached 100,000 kg during the largest storm event in February 2015. The winds can lead to a strong vertical water cycle, especially at the centre of the reservoir, and strong winds result in bed erosion in shallow regions. The outcomes of this paper benefit future research by providing a modelling approach for understanding the hydrodynamics of lakes and reservoirs under a variable climate, and also the local water utility by providing insights for an improved management of the reservoir of this study.
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    Journal Title
    Environmental Modeling & Assessment
    DOI
    https://doi.org/10.1007/s10666-020-09719-5
    Copyright Statement
    © 2020 Springer Netherlands. This is an electronic version of an article published in Environmental Modeling and Assessment, 2020. Environmental Modeling and Assessment is available online at: http://link.springer.com// with the open URL of your article.
    Note
    This publication has been entered in Griffith Research Online as an advanced online version.
    Subject
    Environmental sciences
    Science & Technology
    Life Sciences & Biomedicine
    Lake dynamics
    Ecology
    Publication URI
    http://hdl.handle.net/10072/397628
    Collection
    • Journal articles

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