dc.contributor.author | Qin, Hua-peng | |
dc.contributor.author | Tan, Xiaolong | |
dc.contributor.author | Fu, Guangtao | |
dc.contributor.author | Zhang, Yingying | |
dc.contributor.author | Huang, Yuefei | |
dc.date.accessioned | 2014-05-07T10:12:39Z | |
dc.date.issued | 2013-05-17 | |
dc.description.abstract | This paper investigates the frequency distribution of urban runoff quality indicators using a long-term continuous simulation approach and evaluates the impacts of proposed runoff control schemes on runoff quality in an urbanizing catchment in Shenzhen, China. Four different indicators are considered to provide a comprehensive assessment of the potential impacts: total runoff depth, event pollutant load, Event Mean Concentration, and peak concentration during a rainfall event. The results obtained indicate that urban runoff quantity and quality in the catchment have significant variations in rainfall events and a very high rate of non-compliance with surface water quality regulations. Three runoff control schemes with the capacity to intercept an initial runoff depth of 5 mm, 10 mm, and 15 mm are evaluated, respectively, and diminishing marginal benefits are found with increasing interception levels in terms of water quality improvement. The effects of seasonal variation in rainfall events are investigated to provide a better understanding of the performance of the runoff control schemes. The pre-flood season has higher risk of poor water quality than other seasons after runoff control. This study demonstrates that frequency analysis of urban runoff quantity and quality provides a probabilistic evaluation of pollution control measures, and thus helps frame a risk-based decision making for urban runoff quality management in an urbanizing catchment. | en_GB |
dc.description.sponsorship | Open Research Fund Program of State Key Laboratory of Hydroscience and Engineering | en_GB |
dc.description.sponsorship | National Natural Science Foundation of China | en_GB |
dc.description.sponsorship | National Water Pollution Control and Management Technology Major Projects | en_GB |
dc.identifier.citation | Vol. 496, pp. 79 - 88 | en_GB |
dc.identifier.doi | 10.1016/j.jhydrol.2013.04.053 | |
dc.identifier.grantnumber | sklhse-2011-A-03 | en_GB |
dc.identifier.grantnumber | 51079001 | en_GB |
dc.identifier.grantnumber | 2013ZX07501005 | en_GB |
dc.identifier.uri | http://hdl.handle.net/10871/14840 | |
dc.language.iso | en | en_GB |
dc.publisher | Elsevier | en_GB |
dc.subject | Urban runoff | en_GB |
dc.subject | Water quality | en_GB |
dc.subject | Continuous simulation | en_GB |
dc.subject | Frequency analysis | en_GB |
dc.subject | Urbanization | en_GB |
dc.subject | Runoff control | en_GB |
dc.title | Frequency analysis of urban runoff quality in an urbanizing catchment of Shenzhen, China | en_GB |
dc.type | Article | en_GB |
dc.date.available | 2014-05-07T10:12:39Z | |
dc.identifier.issn | 0022-1694 | |
dc.description | Copyright © 2013 Elsevier. NOTICE: this is the author’s version of a work that was accepted for publication in Journal of Hydrology. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Journal of Hydrology Vol. 496 (2013), DOI: 10.1016/j.jhydrol.2013.04.053 | en_GB |
dc.identifier.eissn | 1879-2707 | |
dc.identifier.journal | Journal of Hydrology | en_GB |