Characteristics of tropical cyclones affecting China from 1971 to 2020
Understanding the characteristics of tropical cyclones is of great practical significance for improving the ability of disaster risk prevention.Based on the tropical cyclones track data from 1971 to 2020,the spatiotemporal evolution of numbers and the characteristics of tropical cyclones affecting China were analyzed.The results show that in the past 50 years,there were 716 tropical cyclones af-fecting China in the Northwest Pacific.The annual difference in number was significant,and the fre-quency of tropical cyclones was decreasing yearly.South China has the largest number of tropical cy-clones,with a total of 526,and some tropical cyclones can affect the inland parts of central and west-ern China.The tropical cyclones affecting China mainly have a westward track.The onset of tropical cyclones is mainly concentrated in mid-May to early June,and the end time is primarily concentrated in November.The earlier(later)the onset time of tropical cyclones and the later(earlier)the end time of tropical cyclones,the more(fewer)the number of tropical cyclones affecting China.
万方数据
