Dispersion and Connectivity of Land-Based Discharges Near the Mouth of a Coastal Inlet

Darren Cox, Jochen Kaempf, Milena Fernandes

    Research output: Contribution to journalArticlepeer-review

    2 Citations (Scopus)


    This work investigates the physical marine connectivity between Adelaide's Barker Inlet and Port River system with discharges from a wastewater treatment plant that is located just outside the inlet. Cluster deployments of Lagrangian global positioning system drifters were used to determine the pathways and dispersive properties of currents in the region. We derived a lateral dispersivity of a mean value of 0.157 m2/s, ranging from 0.053 to 0.240 m2/s. Hydrodynamic modelling (calibrated with the dispersion data) indicates that, during winter months and neap tides, nutrients from the nearshore wastewater discharge intrude directly into the inlet. Modelling further indicates that this connectivity can be substantially reduced in the case of an offshore discharge ∼3 km offshore in a water depth of ∼5 m.

    Original languageEnglish
    Pages (from-to)100-109
    Number of pages10
    JournalJournal of Coastal Research
    Issue number6 SUPPL.A
    Publication statusPublished - Nov 2013


    • Marine connectivity
    • Marine pollution
    • Marine systems.


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