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You are here : eLibrary : IAHR World Congress Proceedings : 36th Congress - The Hague (2015) ALL CONTENT : Sediment management and morphodynamics : Turbidity distribution in the brisbane river estuary during the 2010-2011 queensland floods
Turbidity distribution in the brisbane river estuary during the 2010-2011 queensland floods
Author : YINGYING YU(1), HONG ZHANG(2) & CHARLES LEMCKERT(3)
ABSTRACT
The turbidity distribution within the Brisbane River estuary during the January 2011 flood event was investigated using a
validated numerical model. The Brisbane River estuary turbidity maximum zone (ETM) generally extended throughout the
mid- estuary under normal weather conditions. However, the turbidity distribution was significantly changed during the
January 2011 flood events, from a high-low-high pattern of turbidity distribution to a gradual increasing pattern from
upstream to downstream within the estuary. The ETM zone disappeared but the turbidity approached approximately 2000
NTU. In addition, it was found that the flood impact on sediment transport in the estuary was more significant than the tidal
effects. An estimated 1,000,452 tonnes of sediment were delivered into Moreton Bay through the Brisbane River mouth
during the January 2011 floods. These outcomes will be further applied to develop Moreton Bay models, thereby
investigating the sediment settling in the coastal area following the flood and will also be used to inform the
implementation of catchment management strategies.
File Size : 650,989 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 36th Congress - The Hague (2015) ALL CONTENT
Article : Sediment management and morphodynamics
Date Published : 20/08/2015
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