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Mixing and Dispersion in Sub-Tropical Estuarine System: Field Works and Experience at Eprapah Creek (Australia)

Ferris, John, Chanson, Hubert , & Brown, Richard J. (2004) Mixing and Dispersion in Sub-Tropical Estuarine System: Field Works and Experience at Eprapah Creek (Australia). In Hu, Chunhong & Tan, Y. (Eds.) Ninth International Symposium on River Sedimentation, 18-21 October 2004, Yichang, China.

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Abstract

In natural systems, mixing is driven by turbulence, but current knowledge is limited in estuarine zones, where predictions of contaminant dispersion are often accurate "within a factor of 10". A series of detailed multi-disciplinary field studies was conducted in a small subtropical creek in eastern Australia. Hydrodynamic, water quality and ecological measurements were conducted simultaneously to assess the complexity of the estuarine zone and the interactions between turbulence and environment. The results provide unique and original snapshots of subtropical creek to complement long-term monitoring. Themethodology set new standards for comprehensive surveys of small estuaries in sub-tropical zone. A significant feature of the field studies was the contrasted outcomes, and the finding impacts on the selection of "key water quality indicators". Short-term fluctuations in water quality parameters were further observed to be at least one order or magnitude smaller than turbulent velocity fluctuations.

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ID Code: 10309
Item Type: Conference Paper
Additional Information: For more information, please refer to the conference’s website (see hypertext link) or contact the author.
Additional URLs:
Keywords: Mixing, Estuary, Field experience, Turbulence, Water quality, Ecology, Sub, tropical stream
ISBN: 7302096848
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > INTERDISCIPLINARY ENGINEERING (091500) > Turbulent Flows (091508)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > CIVIL ENGINEERING (090500) > Water Quality Engineering (090508)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > ENVIRONMENTAL ENGINEERING (090700) > Environmental Engineering not elsewhere classified (090799)
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Copyright Owner: Copyright 2004 The International Research and Training Center on Erosion and Sedimentation (IRTCES)
Deposited On: 23 Oct 2007
Last Modified: 29 Feb 2012 23:06

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