Climate Change Research ›› 2020, Vol. 16 ›› Issue (1): 78-87.doi: 10.12006/j.issn.1673-1719.2019.073

• Impacts of Climate Change • Previous Articles     Next Articles

The rainstorm and flooding disaster risk in Beijing under the global warming of 1.5℃ and 2.0℃

Jun-Zhi ZHANG1,Feng YUAN1,Ji WANG2(),He-Min SUN3,Hong LIU2,Wen-Lin MA1   

  1. 1 Beijing Climate Change Response Research and Education Center, Beijing University of Civil Engineering and Architecture, Beijing 100044, China
    2 Beijing Regional Climate Center, Beijing 100089, China
    3 Beijing Municipal Meteorological Observation Center, Beijing 100089, China
  • Received:2019-04-09 Revised:2019-05-15 Online:2020-01-30 Published:2020-01-15
  • Contact: Ji WANG


Based on five climate model simulation results of the Coupled Model Intercomparison Project Phase 5 (CMIP5) and the FloodArea model, this paper analyzes the extreme precipitation and inundation risks of Beijing with global warming of 1.5℃ and 2.0℃ under the scenario of RCP8.5. The extreme precipitation in Beijing shows a decreasing distribution trend from southwest to northeast. When the temperature rises to 2.0℃, the risk of extreme precipitation and inundation increases more obviously than when the temperature rises to 1.5℃. The districts with the most obvious increase in extreme precipitation in suburbs are Fangshan and Mentougou, and Haidian, Shijingshan and Fengtai are the districts with the most obvious increase in extreme precipitation in urban areas. Haidian district has the largest area of flood risk, followed by Fengtai and Shijingshan district. The suburbs of Yanqing and Huairou are the areas with the largest flood area.

Key words: Rainstorm and flood, Flooding simulation, Disaster risk, FloodArea model, Beijing

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