基于相干多普勒激光雷达的北京机场春季低空风切变观测研究

大气与环境光学学报 ›› 2018, Vol. 13 ›› Issue (1): 34-41.

基于相干多普勒激光雷达的北京机场春季低空风切变观测研究

张洪玮, 王琪超, 吴松华*

(中国海洋大学信息科学与工程学院海洋遥感研究所，山东青岛，266100)

收稿日期:2016-09-12 修回日期:2016-12-02 出版日期:2018-01-28 发布日期:2018-02-06
通讯作者: 吴松华（1976-），男，教授，主要从事大气激光雷达、多普勒测风激光雷达、海洋激光雷达和星载激光雷达方面的研究。 E-mail:wush@ouc.edu.cn
作者简介:张洪玮 (1989-)，男，山东烟台人，博士研究生，主要从事相干多普勒测风激光雷达和相干多普勒测速技术方面的研究。
基金资助:
Supported by National Natural Science Foundation of China(国家自然科学基金, 41375016, 41471309）, National High Technology Research and Development Program of China(国家863计划, 2014AA09A511）

Low-Level Wind Shear Observation at Beijing Capital International Airport Based on Coherent Doppler Lidar

ZHANG Hongwei, WANG Qichao, WU Songhua*

(Ocean Remote Sensing Institute, College of Information and Engineering, Ocean University of China, Qingdao 266100, China)

Received:2016-09-12 Revised:2016-12-02 Published:2018-01-28 Online:2018-02-06
Contact: 吴松华（1976-），男，教授，主要从事大气激光雷达、多普勒测风激光雷达、海洋激光雷达和星载激光雷达方面的研究。 E-mail:wush@ouc.edu.cn
About author:张洪玮 (1989-)，男，山东烟台人，博士研究生，主要从事相干多普勒测风激光雷达和相干多普勒测速技术方面的研究。
Supported by:
Supported by National Natural Science Foundation of China(国家自然科学基金, 41375016, 41471309）, National High Technology Research and Development Program of China(国家863计划, 2014AA09A511）

摘要/Abstract

摘要：

低空风切变极易对起降过程中的飞行器、风力发电机的结构产生破坏性影响。简要介绍了低空风切变及风切变的危害，详细介绍了相干多普勒激光雷达的工作原理和低空风廓线反演算法，以及利用风廓线、风矢量图、风速梯度图等观测数据提取风切变的方法。分析了2015年春季北京首都机场低空风切变个例发生的气象条件和风切变强度。实验结果表明相干多普勒测风激光雷达能有效探测分析低空风切变。

关键词: 低空风切变, 相干多普勒激光雷达, 风廓线

Abstract:

Low-level wind shear can affect aircraft during taking-off and landing phases and the structure of wind turbines in disastrous ways. The principle and parameters of coherent Doppler lidar (CDL) were explained briefly and the method of retrieving wind profiles from line of sight ( LOS ) wind speed in detail. The data analysis is based on CDL configured at Beijing Capital International Airport (BCIA) in spring of 2015. Wind profiles time series and wind speed gradient were illustrated to identify the low-level wind shear. The results show that CDL is an effective tool to capture the low-level wind shear events.

Key words: low-level wind shear, coherent Doppler lidar, wind profiles

中图分类号:

TN958
P407

张洪玮王琪超吴松华. 基于相干多普勒激光雷达的北京机场春季低空风切变观测研究[J]. 大气与环境光学学报, 2018, 13(1): 34-41.

ZHANG Hong-Wei, WANG Qi-Chao, WU Song-Hua. Low-Level Wind Shear Observation at Beijing Capital International Airport Based on Coherent Doppler Lidar[J]. Journal of Atmospheric and Environmental Optics, 2018, 13(1): 34-41.

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