Journal of Infrared and Millimeter Waves, Volume. 39, Issue 4, 491(2020)

Low-level wind shear observation based on different physical mechanisms by coherent Doppler lidar

Xiao-Ying LIU1, Song-Hua WU2、*, Hong-Wei ZHANG1, Zhi-Qiang HE3, Jian-Jun ZHANG3, Xiao-Ye WANG1, and Xiao-Min CHEN1
Author Affiliations
  • 1Institute for Advanced Ocean Study, College of Information Science and Engineering, Ocean Remote Sensing Institute, Ocean University of China,Qingdao26600,China
  • 2Institute for Advanced Ocean Study, College of Information Science and Engineering, Ocean Remote Sensing Institute, Ocean University of China,Qingdao26600,China
  • 3North China Regional Air Traffic Management Bureau of CAAC, Beijing100621, China
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    In this paper, two coherent Doppler lidars were used to observe the low-level wind shear induced by dry thunderstorms and terrain at Beijing Capital International Airport. The experiments respectively adopted Doppler Beam Swing (DBS) and Glide Path wind shear identification method to alert the wind shear of the above two types. The results show that the DBS method and Glide Path mode can respectively identify horizontal wind shear caused by dry thunderstorms and terrain. Dry thunderstorms bring sudden increase of wind velocity, abrupt change of wind direction and strong convection of updrafts and downdrafts, which causes the low-level wind shear. Terrain-induced wind shear with the transient and sporadic nature is mainly produced by the interaction between high-speed airflow and complex underlying surface.

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    Xiao-Ying LIU, Song-Hua WU, Hong-Wei ZHANG, Zhi-Qiang HE, Jian-Jun ZHANG, Xiao-Ye WANG, Xiao-Min CHEN. Low-level wind shear observation based on different physical mechanisms by coherent Doppler lidar[J]. Journal of Infrared and Millimeter Waves, 2020, 39(4): 491

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    Paper Information

    Category: Remote Sensing Technology and Application

    Received: Oct. 30, 2019

    Accepted: --

    Published Online: Sep. 17, 2020

    The Author Email: Song-Hua WU (wush@ouc.edu.cn)

    DOI:10.11972/j.issn.1001-9014.2020.04.014

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