Abstract:
Based on the data Typhoon Online of China, the main climate features and disaster causes of tropical cyclones (TCs) landed in China from 1949 to 2019 were statistically analyzed. The results showed that in the past 71 years, there were 2 333 TCs in the Northwest Pacific, of which 636 had landed in China, accounting for 27.3% of the total. In 33 TCs generated annually there were 9 TCs landed in China. The annual difference of landfall number is obvious. The maximum and the minimum landfalls in a year were 15 and 4 times, respectively. Anyway, the landfalls of TC were decreasing yearly in recent 71 years. In the 1950s and 1960s, there were 97 TC landings at most. A statistical analysis by age showed that the number has decreased gradually since the 1990s, reaching the lowest level, only 80, after 2010. Although the number of TC landings in China had declined significantly since the 21st century, the active period of TCs has prolonged. In the past 71 years, the earliest and the latest landing TCs appeared in the 21st century. The landing period tended to concentrate, and the highfrequency period occured from July to September reaching the highest in August accounting for 28.5% of the total. Landing sites tended to concentrate, and the first-landing places concentrated in Guangdong, Hainan and Taiwan. Guangdong was landed the most, accounting for 34.6% of the total landings. Gale, rainstorm and storm surge were the main causes of TC disasters. When encounting the astronomical tide, the tidal disasters can not be ignored.