Abstract:The wind profiler radar data has high temporal and spatial resolution, but is more used in the forecasts and analysis about the strong convective weather. This paper uses the horizontal wind speed and direction data of LAP 3000 boundary layer wind profile radar from January 2009 to June 2010 over Pudong International Airport in the study and analysis of the wind field stucture of the low level atmosphere. The original data with vertical interpolating (the vertical resolution is 50 m in the altitude range from 150 m to 3250 m, and the time interval is about 15 min), are analyzed statistically. The results show that the maximum values of wind speed appear mainly in the following height: 1000 m, 600 m, 500 m, 450 m, 550 m and 250 m, and the maximum value of wind vector difference between two adjacent layers is between 250 m and 300 m. According to the vertical shear intensity standards of horizontal wind recommented by International Civil Aviation Organiztaion (ICAO), the wind vector difference between different adjacent layers is counted up and divided into mild, medium, strong and severe grades. The results show that the seasonal distribution of different grade wind shear is pronounced. These conclusions are beneficial to the study on detailed forecasting, and warning of the lower wind shear at airport and even inland airport area based on AMDAR data, microwave radiometer, electric radiosonde and so on.