Sediment transport modelling in a tropical river system

Michael Miloshis, Eric Valentine

    Research output: Chapter in Book/Report/Conference proceedingConference Paper published in Proceedings

    Abstract

    The Daly River is an important perennial river of the tropical Top End, Northern Territory. Rainfall in the Top End appears to have been greater during the last 40 years than the 100 year long term mean and the resultant increase in overbank flows may be the cause of observed erosion of river banks and deep pool infilling, which threatens fish habitat. A finite element hydrodynamic and sediment transport model of a 10km long reach of river channel and floodplain has been created to investigate the likely cause of channel instability. Morphological changes within the channel during overbank flows are extremely varied but do indicate distinct infilling of pool sections and erosion of river banks. Calibration and verification of the model requires data collection specific to this modelling application. These data are outlined and their relative importance discussed. Applying these outputs to whole of catchment scale sediment interactions will provide a model of fluvial responses to land use and potential climate change.
    Original languageEnglish
    Title of host publicationProceedings of 34th IAHR World Congress
    Editors Engineers Australia
    Place of PublicationBrisbane
    PublisherEngineers Australia
    Pages3635-3642
    Number of pages8
    ISBN (Print)978-0-85825-868-6
    Publication statusPublished - 2011
    Event34th IAHR World Congress - Brisbane, Australia
    Duration: 26 Jun 20111 Jul 2011

    Conference

    Conference34th IAHR World Congress
    Period26/06/111/07/11

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    Cite this

    Miloshis, M., & Valentine, E. (2011). Sediment transport modelling in a tropical river system. In Engineers Australia (Ed.), Proceedings of 34th IAHR World Congress (pp. 3635-3642). Engineers Australia.