TROPICAL CYCLONE DAMAGES IN CHINA UNDER THE BACKGROUND OF GLOBAL WARMING

Over the past 25 years,an average of 6～7 tropical cyclones made landfall on China mainland and Hainan Island with an average intensity of 29.9 m/s at landfall and retained their tropical cyclone intensity for 15.6 hours over land,leading to 505 deaths and 37 billion yuan in direct economic loss,which accounted for 0.4% of the annual GDP.Although there was little change in the overall landfall frequency,landfall intensity and overland time,the annual total direct economic loss increased significantly due to the rapid economic development over the past 25 years.Under the background of global warming,the intensity of tropical cyclones that made landfall on Hainan decreased,but the overland time and frequency of tropical cyclones that made landfall on Fujian and Zhejiang increased,respectively,over the same period of time.At the national and provincial levels,the percentage of direct economic losses of GDP and deaths caused by landfall tropical cyclones decreased,suggesting the effectiveness of disaster prevention and reduction in China.