Abstract
Low-level wind shear is usually to be a rapidly changing meteorological phenomenon that cannot be ignored in aviation security service by affecting the air speed of landing and take-off aircrafts. The lidar team in Ocean University of China (OUC) carried out the long term particular researches on the low-level wind shear identification and regional wind shear inducement search at Beijing Capital International Airport (BCIA) from 2015 to 2020 by operating several pulsed coherent Doppler lidar (PCDL) systems. On account of the improved glide path scanning strategy and virtual multiple wind anemometers based on the rang height indicator (RHI) modes, the small-scale meteorological phenomenon along the glide path and/or runway center line direction can be captured. In this paper, the device configuration, scanning strategies, and results of the observation data are proposed. The algorithms to identify the low-level wind shear based on the reconstructed headwind profiles data have been tested and proved based on the lidar data obtained from December 2018 to January 2019. High spatial resolution observation data at vertical direction are utilized to study the regional wind shear inducement at the 36L end of BCIA under strong northwest wind conditions.
Highlights
Published: 31 December 2020With the rapid growth of passengers in the Beijing Capital International Airport (BCIA), it is necessary to improve the airport operation efficiency and aviation safety
rang height indicator (RHI) scanning ning pattern and it is effective tools to study the wind shear induced by the terrain
Pattern and it is effective tools to study the wind shear induced by the terrain
Summary
With the rapid growth of passengers in the Beijing Capital International Airport (BCIA) (up to 100 million passengers per year), it is necessary to improve the airport operation efficiency and aviation safety. The terrain-induced wind shear and turbulence are notorious for their variability in intensity by affecting the aircraft airspeed during take-off and/or landing phases [1,2,3]. The disturbed wind speed profiles do more harm to the landing aircrafts than to the taking-off aircrafts, the focus of this paper was aimed on the landing aircraft and the operated landing ending.
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