摘要
分析热带气旋灾害的灾情时空特征,对科学认识热带气旋灾害、提高风险防范能力具有重要的指导意义。通过选取死亡人口、倒塌房屋、受灾面积、直接经济损失等4项灾情指标,分析了2000-2016年登陆我国并致灾的热带气旋灾害时空特征,并进一步构建了热带气旋灾情指数(ATDI)。分析结果表明,2000-2016年我国致灾热带气旋频率高,影响范围非常广,全国20个省(自治区、直辖市)都受热带气旋影响;17年间共发生135次热带气旋灾害,年均7.9次,死亡人口、倒塌房屋、受灾面积、直接经济损失4项灾情指标年际差异大,直接经济损失呈增长趋势。其中,重点分析了受灾最为严重的浙江、福建、广东、广西、海南5省(自治区)的灾情特征。最后选取了热带气旋灾害中最严重的台风灾害进行典型案例分析,研究表明,台风风速、暴雨及持续时间是造成重大灾损的主要原因。
Tropical cyclone disasters are one of the most frequent and severe meteorological disasters in the southeast coast region of China. It causes great property and economic losses and even human casualties each year,which seriously restricts the harmonious development of society and economy. Analysis of the temporal-spatial characteristics of tropical cyclone disasters is very important for scientific understanding of tropical cyclone disasters and for the integrated risk prevention improvement. This study analyzes the temporal-spatial characteristics of tropical cyclone disasters that landed in China from 2000 to 2016. The tropical cyclone disasters index(ATDI)was selected as well as four common disaster indicators including the casualty,collapsed house,disaster area and direct economic loss. The results show that the frequency of tropical cyclone disasters in China was significant during 2000-2016,and the impact scope was very wide by covering 20 provinces. There were 135 tropical cyclone disasters during 17 years period,with an average of 7.9 times per year. The four disaster indicators have large inter-annual differences. Among them,the most seriously affected five provinces(Zhejiang,Fujian,Guangdong,Guangxi and Hainan)were emphatically analyzed. The most serious typhoon among the tropical cyclone disasters is selected for the typical case,and the study shows that the wind speed,rainstorm and duration of the typhoon are the main reasons for the major disaster damage.
作者
刘倩
高路
赵鹏
陈兴伟
LIU Qian;GAO Lu;ZHAO Peng;CHEN Xingwei(College of Geographical Sciences,Fujian Normal University,Fuzhou 350007;Institute of Geography,Fujian Normal University,Fuzhou 350007;Fujian Provincial Engineering Research Center for Monitoring and Assessing Terrestrial Disasters,Fuzhou 350007)
出处
《中国防汛抗旱》
2020年第5期50-57,共8页
China Flood & Drought Management
基金
福建省科技厅省属公益类科研专项(2018R10343,2019R1002-3)
国家自然科学基金项目(41877167)
福建省高校杰出青年科研人才培育计划。
关键词
热带气旋
台风
时空特征
灾情指数
东南沿海
tropical cyclones
typhoon
spatial-temporal features
disaster index
southeast coast region of China
作者简介
第一作者:刘倩,女,E-mail:17808324767@163.com。
