中文摘要：

基于大量实测数据和气象资料,对热带气旋和沿海地区最大风速的变化规律,以及近地边界层强/台风剖面和不同时距风场特性进行了分析。研究结果表明：西太平洋地区每年形成的热带气旋呈递减趋势,而历年登录我国的热带气旋的变化趋势与之相反;台风对沿海地区的年最大风速影响非常大,因周围环境的变化导致了气象站观测得到的年最大风速呈递减趋势;随着高度的增加,近地各高度的风速和风向角变化非常同步,且湍流度呈现出逐渐减小趋势;随着平均时距减小,台风平均风速的最大值大幅增加,顺风向湍流度均值减小得比横风向快,短时距风参数能更好的反映出风场的脉动性。

英文摘要：

Based on a large amount of measured data and meteorological data, the variation of tropical cyclone and the maximum wind velocity in coastal areas, the surface boundary layer strong wind or typhoon profile, as well as interval average wind field characteristics at different time were analyzed. The results show that the tropical cyclones appearing in Western Pacific Ocean roughly show a decreasing trend over the years, but the landfall of tropical storm in China has an opposite trend to the West Pacific Ocean. The annual maximum wind speed in coastal areas is heavily influenced by the typhoon appearance. The annual maximum wind speed measured by weather station has a decreasing trend caused by its surrounding environment changes. As the height increases, the changes of wind field are synchronous, and the turbulence intensity shows a decreasing tendency. As the average time interval decreases, the maximum mean wind speed of typhoon increases substantially, and the mean turbulence intensity of along-wind decreases faster than the value of across-wind. Shorter time interval data reveals a good fluctuating of wind field characteristics.