Tide-induced water table fluctuations in coastal aquifers bounded by rhythmic shorelines

Ping Dong, D. A. Barry, L. Li

    Research output: Contribution to journalArticlepeer-review

    18 Citations (Scopus)

    Abstract

    Previous studies on tidal water table dynamics in unconfined coastal aquifers have focused on the inland propagation of oceanic tides in the cross-shore direction based on the assumption of a straight coastline. Here, two-dimensional analytical solutions are derived to study the effects of rhythmic coastlines on tidal water table fluctuations. The computational results demonstrate that the alongshore variations of the coastline can affect the water table behavior significantly, especially in areas near the centers of the headland and embayment. With the coastline shape effects ignored, traditional analytical solutions may lead to large errors in predicting coastal water table fluctuations or in estimating the aquifer's properties based on these signals. The conditions under which the coastline shape needs to be considered are derived from the new analytical solution.
    Original languageEnglish
    Pages (from-to)925-933
    Number of pages9
    JournalJournal of Hydraulic Engineering
    Volume128
    Issue number10
    DOIs
    Publication statusPublished - 2002

    Keywords

    • Tidals
    • Coastal environment
    • Aquifers
    • Water table

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