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Analysis of Flood Damage in the Seoul Metropolitan Government Using Climate Change Scenarios and Mitigation Technologies

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  • Jaekyoung Kim

    (Department of Landscape Architecture and Rural Systems Engineering, Seoul National University, Seoul 08826, Korea
    Transdisciplinary Program in Smart City Global Convergence, Seoul National University, Seoul 08826, Korea)

  • Junsuk Kang

    (Department of Landscape Architecture and Rural Systems Engineering, Seoul National University, Seoul 08826, Korea
    Transdisciplinary Program in Smart City Global Convergence, Seoul National University, Seoul 08826, Korea
    Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Korea
    Interdisciplinary Program in Landscape Architecture, Seoul National University, Seoul 08826, Korea)

Abstract

The social and economic damages caused by climate change have increased rapidly over the last several decades, with increasing instances of heatwaves, floods, and extreme rainfall. In 2011, heavy rain of 110.5 mm/hr caused great damage to the Seoul Metropolitan Government. Most of the causes of flooding in modern cities include a sharp increase in non-permeable pavement and a lack of water circulation facilities. It is predicted that heavy rainfalls will occur in the future, causing large amounts of local damage. In this study, possible future flood damages were analyzed using climate change scenarios based on the Korean Peninsula. ArcGIS was adopted to perform analyses, and Huff curves were employed for precipitation analysis. Water tanks, permeable pavement, and ecological waterways were installed as mitigation technologies. These three technologies can contribute to flooding mitigation by increasing the rainwater storage capacity. This study suggests that all floods can be reduced by RCP 8.5 by 2050 and 2060. Although there will be run-off after 2050, it is believed that technology will significantly reduce the volume and possibility of floods. It is recommended that a one-year analysis should be conducted in consideration of the maintenance aspects that will arise in the future.

Suggested Citation

  • Jaekyoung Kim & Junsuk Kang, 2020. "Analysis of Flood Damage in the Seoul Metropolitan Government Using Climate Change Scenarios and Mitigation Technologies," Sustainability, MDPI, vol. 13(1), pages 1-28, December.
    • Handle: RePEc:gam:jsusta:v:13:y:2020:i:1:p:105-:d:467645
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    References listed on IDEAS

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    Cited by:

    1. Jinhyun Jun, 2023. "Towards Sustainable Urban Riverfront Redevelopment: Adaptability as a Design Strategy for the Hangang Riverfront in Seoul," Sustainability, MDPI, vol. 15(12), pages 1-22, June.
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    3. Jinhyun Jun & Minkyung Song, 2023. "Study on the Redevelopment of the Hangang River Waterfront from an Urban Resilience Perspective," Sustainability, MDPI, vol. 15(19), pages 1-19, September.

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