中国热带气旋潜在影响力指数分析(英文)

编号 zgly0001585604

文献类型 期刊论文

文献题名 中国热带气旋潜在影响力指数分析(英文)

作者 肖风劲  尹宜舟  罗勇  宋连春  叶殿秀 

作者单位 BeijingClimateCenter  InstituteofAtmosphericPhysics  CAS 

母体文献 Journal of Geographical Sciences 

年卷期 2011年05期

年份 2011 

分类号 P444 

关键词 tropicalcyclone  potentialimpactindex  temporalandspatialvariation  directeconomiclosses  TyphoonSaomai 

文摘内容 Tropical cyclone,a high energy destructive meteorological system with heavy rainfall and gale triggered massive landslides and windstorms,poses a significant threat to coastal areas.In this paper we have developed a Tropical Cyclone Potential Impact Index (TCPI) based on the air mass trajectories,disaster information,intensity,duration,and frequency of tropical cyclones.We analyzed the spatial pattern and interannual variation of the TCPI over the period 1949-2009,and taking the Super Typhoon Saomai as an example have examined the relationship between the TCPI and direct economic losses,total rainfall,and maximum wind speed.The results reveal that China’s TCPI appears to be a weak decreasing trend over the period,which is not significant overall,but significant in some periods.Over the past 20 years,the TCPI decreased in the southern China coastal provinces of Hainan,Guangdong and Guangxi,while it increased in the southeastern coastal provinces of Zhejiang,Fujian and Taiwan.The highest values of TCPI are mainly observed in Taiwan,Hainan,the coastal areas of Guangdong and Fujian and Zhejiang’s southern coast.The TCPI has a good correlation (P=0.01) with direct economic loss,rainfall,and maximum wind speed.