Prediction of stormwater particle loads from impervious urban surfaces based on a rainfall detachment index
Article
Article Title | Prediction of stormwater particle loads from impervious urban surfaces based on a rainfall detachment index |
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ERA Journal ID | 4696 |
Article Category | Article |
Authors | |
Author | Brodie, I. M. |
Editors | Deletic, Ana and Fletcher, Tim |
Journal Title | Water Science and Technology |
Journal Citation | 55 (4), pp. 49-56 |
Number of Pages | 8 |
Year | 2007 |
Publisher | IWA Publishing |
Place of Publication | London, UK |
ISSN | 0273-1223 |
1996-9732 | |
Digital Object Identifier (DOI) | https://doi.org/10.2166/wst.2007.094 |
Web Address (URL) | http://www.iwaponline.com/wst/05504/0049/055040049.pdf |
Abstract | This paper makes use of Non-Coarse Particle (NCP) data collected from three different impervious surfaces in Toowoomba, Australia. NCP is defined as suspended solids less than 500μm in size. NCP loads (in mg/m2) were derived for 24 storms from a galvanized iron roof, a concrete carpark and a bitumen road pavement. A scatter plot analysis was used to identify potential correlations between NCP loads and basic rainfall parameters such as rainfall depth and intensity. An exponential-type trend, consistent with many washoff models, was evident between load and average rainfall intensity for all surfaces. However, load data for some storms did not fit this general trend. Various indices, comprising different combinations of basic rainfall parameters, were evaluated as an alternative to rainfall intensity. A composite index, referred to as the Rainfall Detachment Index, was found to be better than average rainfall intensity in explaining a relationship between NCP load and storm rainfall characteristics. The selected rainfall index utilizes 6-minute rainfall intensities and is a variant of the well known Rainfall Erosivity Index (EI30) used for soil erosion estimation. |
Keywords | urban runoff; stormwater loads; particle washoff; stormwater monitoring |
ANZSRC Field of Research 2020 | 370704. Surface water hydrology |
400499. Chemical engineering not elsewhere classified | |
400513. Water resources engineering | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Australian Centre for Sustainable Catchments |
Event | 7th International Conference on Urban Drainage Modelling & 4th International Conference on Water Sensitive Urban Design |
ISBN | 9781843395911 |
Event Details | 7th International Conference on Urban Drainage Modelling & 4th International Conference on Water Sensitive Urban Design Parent International Conference on Urban Drainage Modelling and International Conference on Water Sensitive Urban Design Delivery In person Event Date 02 to end of 07 Apr 2006 Event Location Melbourne, Australia |
https://research.usq.edu.au/item/9y436/prediction-of-stormwater-particle-loads-from-impervious-urban-surfaces-based-on-a-rainfall-detachment-index
1940
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