广东水利水电Issue(2)：1-6,6.
广东省热带气旋潜在风险指数时空分布特征
Temporal and Spatial Distribution Characteristics of Potential Risk Index for Tropical Cyclonesover Guangdong Province
摘要
Abstract
The impact of tropical cyclones on Guangdong Province has significant spatiotemporal heterogeneity.This article has analyzed the situation of tropical cyclones landing in Guangdong Province from 1949 to 2022 and analyzed the temporal and spatial distribution characteristics of the potential risk index based on the data provided by the PRITC V1.0 dataset(from 1949 to 2018).The results show that tropical cyclones mainly make landfall in Guangdong from June to October,accounting for 94.2%of the total landfall,mainly landing in three cities in western Guangdong,accounting for 47.8%.The intensity of tropical cyclones landing to the west of the Pearl River Estuary is greater than that to the east of the Estuary.Since 1970,the annual average potential risk index has increased on a ten-year moving average.In addition,the impact of tropical cyclones on precipitation exceeds that of winds.The cities with the highest cumulative potential risk index are Zhanjiang,Shanwei,Yangjiang,and Jiangmen.Also,the combined index of TC-induced precipitation and wind in Zhanjiang,Maoming,and Shantou shows an increasing trend on the ten-year moving average.Overall,the results can provide references for disaster prevention and reduction work in different regions.关键词
热带气旋/潜在风险指数/台风登陆/时空分布/广东省Key words
tropical cyclone/potential risk index/typhoon landfall/spatial and temporal distribution/Guangdong Province分类
天文与地球科学引用本文复制引用
张之琳,邱静,洪昌红,刘达..广东省热带气旋潜在风险指数时空分布特征[J].广东水利水电,2024,(2):1-6,6.基金项目
广东省水利科技创新项目(编号:2021-01) （编号:2021-01）
广州市科技计划项目(编号:2023A04J0991). （编号:2023A04J0991）
