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Adaptation of a Storm Drainage System to Accommodate Increased Rainfall Resulting from Climate Change

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  • Darren Waters
  • W. Edgar Watt
  • Jiri Marsalek
  • Bruce Anderson

Abstract

Extreme rainfalls in southern Ontario may increase significantly as a result of climate change. This study was designed to determine the impact of a 15% increase in design rainfall intensities on drainage of a typical urban catchment and to investigate adaptive measures. A calibrated model (PCSWMM 2000) was used to: (1) determine the system performance under current and climate-changed design rainfalls; and (2) calculate the magnitudes of various adaptive measures required to reduce the peak discharge to current levels. For this type of catchment, effective retrofit options that provide the required peak discharge reductions included downspout disconnection (50% of connected roofs), increased depression storage (by 45 m3/impervious hectare), and increased street detention storage (by 40m3/impervious hectare).

Suggested Citation

  • Darren Waters & W. Edgar Watt & Jiri Marsalek & Bruce Anderson, 2003. "Adaptation of a Storm Drainage System to Accommodate Increased Rainfall Resulting from Climate Change," Journal of Environmental Planning and Management, Taylor & Francis Journals, vol. 46(5), pages 755-770.
    • Handle: RePEc:taf:jenpmg:v:46:y:2003:i:5:p:755-770
    DOI: 10.1080/0964056032000138472
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    Cited by:

    1. Luminda Niroshana Gunawardhana & Ghazi A. Al-Rawas & Ghadeer Al-Hadhrami, 2018. "Quantification of the changes in intensity and frequency of hourly extreme rainfall attributed climate change in Oman," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 92(3), pages 1649-1664, July.
    2. Tong Chen & Mo Wang & Jin Su & Jianjun Li, 2023. "Unlocking the Positive Impact of Bio-Swales on Hydrology, Water Quality, and Biodiversity: A Bibliometric Review," Sustainability, MDPI, vol. 15(10), pages 1-19, May.
    3. Trisha L. Moore & John S. Gulliver & Latham Stack & Michael H. Simpson, 2016. "Stormwater management and climate change: vulnerability and capacity for adaptation in urban and suburban contexts," Climatic Change, Springer, vol. 138(3), pages 491-504, October.
    4. Thomas D. Pol & Ekko C. Ierland & Silke Gabbert, 2017. "Economic analysis of adaptive strategies for flood risk management under climate change," Mitigation and Adaptation Strategies for Global Change, Springer, vol. 22(2), pages 267-285, February.
    5. Swathi Vemula & K. Srinivasa Raju & S. Sai Veena & A. Santosh Kumar, 2019. "Urban floods in Hyderabad, India, under present and future rainfall scenarios: a case study," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 95(3), pages 637-655, February.

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