A coherent wind lidar based on Doppler principle and
its field application

doi:10.3969/j.issn.1673-6141.2024.01.002

Abstract

Abstract: Accurate observation of atmospheric wind field is of great significance in meteorology, military, aerospace and other fields. Coherent wind lidar can detect the atmospheric vector wind field effectively and in real time. A coherent wind lidar based on the Doppler principle is developed in this work, and its performance is demonstrated in field observations. The system can detect the horizontal wind field and vertical airflow with a vertical altitude from 45 m to 3000 m and its maximum detectable wind speed is 60 m/s. The observation data of the lidar at Huangpu District Meteorological Bureau in Guangzhou, China, from 08:00 on October 16, 2021 to 00:00 on October 20, 2021, is analyzed and compared with that of the microwave wind profile lidar at the same location during the same period, and it shows that the two observation data are in good agreement. Finally, the typical observation data from 10:00 on October 18 to 00:00 on October 20, 2021, are selected for key analysis to further verify the accuracy of the data measured by the coherent wind lidar. The application of the developed lidar in wind field detection will provide realtime data support for the improvement of meteorological parameter monitoring and forecast accuracy, as well as the early warning of extreme disastrous weather.

Key words: lidar, Doppler, coherent wind measurement, wind profile comparison

CLC Number:

TN958.98

GU Taofeng , YUE Haiyan , WANG Sihua , WU Guangsheng , FENG Houwen , TANG Ziheng , ZHUANG Peng , KANG Baorong , XIE Chenbo , . A coherent wind lidar based on Doppler principle and its field application[J]. Journal of Atmospheric and Environmental Optics, 2024, 19(1): 22-37.

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A coherent wind lidar based on Doppler principle and its field application

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