Understanding the interrelationships between stormwater quality and rainfall and runoff factors in residential catchments

Egodawatta, Prasanna K. and Goonetilleke, Ashantha and Ayoko, Godwin A. and Thomas, Evan C. (2006) Understanding the interrelationships between stormwater quality and rainfall and runoff factors in residential catchments. In Deletic, Ana and Fletcher, Tim, Eds. Proceedings Seventh International Conference on Urban Drainage Modelling and the Fourth International Conference on Water Sensitive Urban Design 1, pages pp. 43-50, Melbourne.

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Abstract

This paper discusses the outcomes of a research project which involved in-depth investigation of stormwater quality by analysing rainfall-runoff and water quality data from four urban residential catchments. The outcomes of the investigations confirmed that the pollutant export characteristics from these catchments are strongly correlates with the rainfall intensity rather than other rainfall-runoff parameter. Further, the overall pollutant export from the catchment is mostly dependent on lesser number of high intensity storm events. These findings suggested that the rainfall intensity would be the most suitable rainfall-runoff parameter for pollutant export equations in stormwater quality models. Furthermore, the variation of stormwater quality with range of rainfall-runoff parameters emphasis the necessity of long term calibration of models.

Item Type:	Conference Paper
RM Number:	2006003219
Status:	Published
Keywords:	urban water quality, chemometrics, urban landuse
Subjects:	250000 Chemical Sciences > 250400 Analytical Chemistry > 250408 Chemometrics 290000 Engineering and Technology > 290800 Civil Engineering > 290802 Water and Sanitary Engineering 290000 Engineering and Technology > 291100 Environmental Engineering > 291101 Environmental Engineering Modelling
ID Code:	4037
Deposited By:	Goonetilleke, Ashantha
Deposited On:	04 May 2006
Alternative Locations:	http://www.icms.com.au/UDMandWSUD/, http://www.engineersaustralia.org.au/
Copyright Owner:	Copyright 2006 Engineers Australia
Additional Information:	Self-archiving of the author-version is not yet supported by this publisher. For more information, please refer to the publisher's website (see hypertext link) or contact the author.