Managing Extreme Rainfall and Flooding Events: A Case Study of the 20 July 2021 Zhengzhou Flood in China

IF 3 Q2 METEOROLOGY & ATMOSPHERIC SCIENCES Climate Pub Date : 2023-11-12 DOI:10.3390/cli11110228
Xiaofan Zhao, Huimin Li, Qin Cai, Ye Pan, Ye Qi
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Abstract

On 20 July 2021, an extreme rainstorm battered Zhengzhou in China’s Henan Province, killing 302 people, including 14 individuals who drowned in a subway tunnel and 6 who drowned in a road tunnel. As the global climate warms, extreme weather events similar to the Zhengzhou flood will become more frequent, with increasingly catastrophic consequences for society. Taking a case study-based approach by focusing on the record-breaking Zhengzhou flood, this paper examines the governance capacity of inland cities in North China for managing extreme precipitation and flooding events from the perspective of the flood risk management process. Based on in-depth case analysis, our paper hypothesizes that inland cities in North China still have low risk perceptions of extreme weather events, which was manifested in insufficient pre-disaster preparation and prevention, poor risk communication, and slow emergency response. Accordingly, it is recommended that inland cities update their risk perceptions of extreme rainfall and flooding events, which are no longer low-probability, high-impact “black swans”, but turning into high-probability, high-impact “gray rhinos.” In particular, cities must make sufficient preparation for extreme weather events by revising contingency plans and strengthening their implementation, improving risk communication of meteorological warnings, and synchronizing emergency response with meteorological warnings.
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极端降雨和洪水事件的管理:以2021年7月20日中国郑州洪水为例
2021年7月20日,一场特大暴雨袭击了中国河南省郑州市,造成302人死亡,其中14人死于地铁隧道,6人死于公路隧道。随着全球气候变暖,类似郑州洪水的极端天气事件将更加频繁,给社会带来的灾难性后果也将越来越严重。本文以郑州特大洪水为研究对象,从洪水风险管理过程的角度考察了华北内陆城市对极端降水和洪涝事件的治理能力。在深入案例分析的基础上,本文假设华北内陆城市对极端天气事件的风险认知仍然较低,表现在灾前准备和预防不足、风险沟通差、应急响应缓慢等方面。因此,建议内陆城市更新对极端降雨和洪水事件的风险认知,这些事件不再是低概率、高影响的“黑天鹅”,而是高概率、高影响的“灰犀牛”。特别是,城市必须对极端天气事件做好充分准备,修订应急计划并加强实施,改善气象预警的风险沟通,实现应急响应与气象预警同步。
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来源期刊
Climate
Climate Earth and Planetary Sciences-Atmospheric Science
CiteScore
5.50
自引率
5.40%
发文量
172
审稿时长
11 weeks
期刊介绍: Climate is an independent, international and multi-disciplinary open access journal focusing on climate processes of the earth, covering all scales and involving modelling and observation methods. The scope of Climate includes: Global climate Regional climate Urban climate Multiscale climate Polar climate Tropical climate Climate downscaling Climate process and sensitivity studies Climate dynamics Climate variability (Interseasonal, interannual to decadal) Feedbacks between local, regional, and global climate change Anthropogenic climate change Climate and monsoon Cloud and precipitation predictions Past, present, and projected climate change Hydroclimate.
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