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Watershed urbanization and changing flood behavior across the Los Angeles metropolitan region

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  • Jingfen Sheng
  • John Wilson

Abstract

This article examines the effects of watershed urbanization on stream flood behavior in the Los Angeles metropolitan region. Stream gauge data, spatially distributed rainfall data, land use/land cover, and census population data were used to quantify change in flood behavior and urbanization in multiple watersheds. Increase in flood discharge started at the very early stage of the urbanization when the population density was relatively low but the rate of increase of flood discharge varied across watersheds depending on the distribution of the imperviousness surface and flood mitigation practices. This spatial variability in rainfall–runoff indices and the increasing flood risk across the metropolitan region has posed a challenge to the conventional flood emergency management, which usually responds to flood damages rather than being concerned with the broader issues of land use, land cover, and planning. This study pointed out that alternative land use planning and flood management practices could be mitigating the urban flood implemented hazard. Copyright Springer Science+Business Media B.V. 2009

Suggested Citation

  • Jingfen Sheng & John Wilson, 2009. "Watershed urbanization and changing flood behavior across the Los Angeles metropolitan region," 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. 48(1), pages 41-57, January.
    • Handle: RePEc:spr:nathaz:v:48:y:2009:i:1:p:41-57
    DOI: 10.1007/s11069-008-9241-7
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    Citations

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    Cited by:

    1. N. Zhou & S. Zhao, 2013. "Urbanization process and induced environmental geological hazards in China," 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. 67(2), pages 797-810, June.
    2. Ashraf Abdelkarim & Ahmed F. D. Gaber & Ibtesam I. Alkadi & Haya M. Alogayell, 2019. "Integrating Remote Sensing and Hydrologic Modeling to Assess the Impact of Land-Use Changes on the Increase of Flood Risk: A Case Study of the Riyadh–Dammam Train Track, Saudi Arabia," Sustainability, MDPI, vol. 11(21), pages 1-32, October.
    3. Bikram Manandhar & Shenghui Cui & Lihong Wang & Sabita Shrestha, 2023. "Urban Flood Hazard Assessment and Management Practices in South Asia: A Review," Land, MDPI, vol. 12(3), pages 1-29, March.
    4. Guangwei Huang, 2012. "From Confining to Sharing for Sustainable Flood Management," Sustainability, MDPI, vol. 4(7), pages 1-15, June.
    5. Morteza Miri & Tayeb Raziei & Mehran Zand & Mohammad Reza Kousari, 2023. "Synoptic aspects of two flash flood-inducing heavy rainfalls in southern Iran during 2019–2020," 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. 115(3), pages 2655-2672, February.
    6. Klaus Eisenack & Rebecca Stecker & Diana Reckien & Esther Hoffmann, 2012. "Adaptation to climate change in the transport sector: a review of actions and actors," Mitigation and Adaptation Strategies for Global Change, Springer, vol. 17(5), pages 451-469, June.
    7. Dorcas Idowu & Wendy Zhou, 2023. "Global Megacities and Frequent Floods: Correlation between Urban Expansion Patterns and Urban Flood Hazards," Sustainability, MDPI, vol. 15(3), pages 1-19, January.
    8. Jarbou Bahrawi & Hatem Ewea & Ahmed Kamis & Mohamed Elhag, 2020. "Potential flood risk due to urbanization expansion in arid environments, Saudi Arabia," 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. 104(1), pages 795-809, October.

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