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  • Two-Dimensional Approximation for Tidal Dynamics in Coastal Aquifers: Capillarity Correction

    Author(s)
    Jeng, Dong-Sheng
    Teo, H T
    Barry, DA
    Li, L
    Griffith University Author(s)
    Jeng, Dong-Sheng
    Year published
    2005
    Metadata
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    Abstract
    Most previous investigations on tide-induced watertable fluctuations in coastal aquifers have been based on one-dimensional models that describe the processes in the cross-shore direction alone, assuming negligible along-shore variability. A recent study proposed a two-dimensional approximation for tide-induced watertable fluctuations that took into account coastline variations. Here, we further develop this approximation in two ways, by extending the approximation to second order and by taking into account capillary effects. Our results demonstrate that both effects can markedly influence watertable fluctuations. In particular, ...
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    Most previous investigations on tide-induced watertable fluctuations in coastal aquifers have been based on one-dimensional models that describe the processes in the cross-shore direction alone, assuming negligible along-shore variability. A recent study proposed a two-dimensional approximation for tide-induced watertable fluctuations that took into account coastline variations. Here, we further develop this approximation in two ways, by extending the approximation to second order and by taking into account capillary effects. Our results demonstrate that both effects can markedly influence watertable fluctuations. In particular, with the first-order approximation, the local damping rate of the tidal signal could be subject to sizable errors.
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    Journal Title
    Journal of Engineering Mechanics, ASCE
    Volume
    131
    Issue
    5
    DOI
    https://doi.org/10.1061/(ASCE)0733-9399(2005)131:5(534)
    Subject
    Civil Geotechnical Engineering
    Publication URI
    http://hdl.handle.net/10072/62938
    Collection
    • Journal articles

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