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

Darren Cox, Jochen Kaempf, Milena Fernandes

    Research output: Contribution to journalArticle

    2 Citations (Scopus)

    Abstract

    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
    Volume29
    Issue number6 SUPPL.A
    DOIs
    Publication statusPublished - Nov 2013

    Keywords

    • Marine connectivity
    • Marine pollution
    • Marine systems.

    Fingerprint Dive into the research topics of 'Dispersion and Connectivity of Land-Based Discharges Near the Mouth of a Coastal Inlet'. Together they form a unique fingerprint.

    Cite this