Lidar Observation of Wind Shear along Glide Path at Beijing Capital International Airport

摘要

The significance of wind shear to aviation lies in its effect on aircraft performance and hence its potentially adverse effect on flight safety during landing phase especially within 500m (1600 ft) at height. The lidar team in Ocean University of China (OUC) carried out the particular research of the low level wind shear along the glide path at Beijing Capital International Airport (BCIA) in 2016 by utilizing a pulse coherent Doppler lidar (PCDL). On account of the high spatial and temporal resolution, the small-scale air mass disturbances along the glide path can be captured easily. The experiment configuration, the PCDL, the observation modes, the case study of the wind shear and the statistics of wind shear intensity are proposed and experimentally demonstrated. The reliability of wind shear identification algorithms has been proved by wind shear reports from the crew and the terminal control office.