Wind characteristics near ground in south-eastern coast area of China based on field measurement

From the point of view of wind engineering, this paper discusses the wind characteristics of China's south-eastern coast area near the ground based on field measurements. Five three-dimensional (3D) ultrasonic anemometers were installed at different heights on a transmission tower in Xiupu, Fujian province, which is a typical coastal landform in South-east China. These anemometers synchronously collected wind records. The wind data were sorted according to the strong wind criterion. The exponent of the mean wind speed and the turbulence intensity profile are provided based on the power law, and suggestions for code are given. The aerodynamic parameters of turbulence in the atmospheric boundary layer are given and used to evaluate the existing empirical models of 3D fluctuating wind speed, such as turbulence intensity, gust factor, turbulence integral length scale and power spectral densities. The provided results can be used by designers to improve the wind resistance of civil engineering projects in South-east China.