IAHR, founded in 1935, is a worldwide independent member-based organisation of engineers and water specialists working in fields related to the hydro-environmental sciences and their practical application. Activities range from river and maritime hydraulics to water resources development and eco-hydraulics, through to ice engineering, hydroinformatics, and hydraulic machinery.
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You are here : eLibrary : IAHR World Congress Proceedings : 34th Congress - Brisbane (2011) : THEME 5: Environmental Hydraulics and Hydrology : Sediment transport modelling in a tropical river system
Sediment transport modelling in a tropical river system
Author : M. Miloshis and E.M. Valentine
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.
File Size : 650,299 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 34th Congress - Brisbane (2011)
Article : THEME 5: Environmental Hydraulics and Hydrology
Date Published : 01/07/2011
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