Methodologies to assess the performance of water sensitive urban design systems in Greenfield catchment developments /
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(Published version)
Date
2013
Authors
Wella Hewage, Chathurika Subhashini,
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thesis
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Abstract
Developing greenfield (natural) catchments into urban areas is inevitable due to escalating population growth and industrial and commercial expansion. Land-use change associated with greenfield catchment development has profound impacts on catchment hydrology by altering the quantity and quality domains of streamflow characteristics. Altered flow regimes in urbanised streams result in degraded aquatic ecosystem health and changed channel geometry, in addition to increased flood hazards downstream of the catchment. The concept of stormwater source control emerged from a need to manage stormwater with the aim of replicating predevelopment flow regimes in urbanised catchments. Stormwater source controls are referred to as water sensitive urban design (WSUD) in Australia and are increasingly being adopted across the country to manage urban stormwater. With WSUD being an integral part of stormwater management plans, it is critical to establish the hydrologic performance of WSUD systems with respect to replicating predevelopment flow regimes.The aim of this study was to assess the performance of infiltration-based WSUD systems implemented in greenfield catchment developments in relation to maintaining channel forming flow regimes. A methodology was developed to assess the catchment scale hydrologic impact of land-use change. The developed methodology was applied to two South Australian catchments: Scott Creek; and Myponga.
School/Discipline
University of South Australia. School of Natural and Built Environments.
School of Natural and Built Environments.
School of Natural and Built Environments.
Dissertation Note
Thesis (PhD(Water Engineering)--University of South Australia, 2013.
Provenance
Copyright 2013 Wella Hewage Chathurika Subhashini.
Description
1 ethesis (xvi, 293 pages) :
illustrations (chiefly colour), colour maps.
Includes bibliographical references (pages 227-258)
illustrations (chiefly colour), colour maps.
Includes bibliographical references (pages 227-258)
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506 0#$fstar $2Unrestricted online access