Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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Analysis of Flooding Variation and Flood Inundation According to Increasing Rainfall

강우량 증가에 따른 홍수량 변동 및 홍수범람 분석

  • Kang, Bo-Seong (Department of Civil Engineering, Jeju National University) ;
  • Yang, Sung-Kee (Department of Civil Engineering, Jeju National University) ;
  • Jung, Woo-Yeol (Department of Civil Engineering, Jeju National University)
  • Received : 2014.12.19
  • Accepted : 2015.03.28
  • Published : 2015.04.30
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Abstract

As global warming has accelerated to weather in recent years, and The frequent floods are creating heavy rains and typhoons followed by considerable damage in Jeju. This study estimated design flood discharges and flood stage in Jeju, considering climate change in connection with RCP scenario, the 5th IPCC Report recently published. It also analyzed the period which might be subject to the risk of flooding in downstream of Oedo Stream. As a result, it has analyzed that there might be a risk of flooding when there were 80 years or more rainfall events in 35 years that rainfall would have increased by 10%, 69 years that 100 years or more heavy rain and rainfall would have increased by 20%, and 104 years that 100 years or more heavy rain and rainfall would have increased by 20%. It is expected that this study results of rainfall increasing trend caused by climate change will be helpful to minimize the damage of floods which will secure the future of Jeju.

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References

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  1. Study on Variations in Flooding Volume According to Ratio of Rainfall to Projected Cross-Sectional Area of Photovoltaic Facilities vol.18, pp.6, 2018, https://doi.org/10.9798/KOSHAM.2018.18.6.313