• Infrared and Laser Engineering
  • Vol. 50, Issue 3, 20210100 (2021)
Zhaoai Yan1、2、3, Xiong Hu1、2, Wenjie Guo1、2, Shangyong Guo1、2, Yongqiang Cheng1、2, Bingyan Zhang1、2, Zhifang Chen1、2、3, and Weibo Zhao1、2、3
Author Affiliations
  • 1National Space Science Center, Chinese Academy of Sciences, Beijing 100190, China
  • 2Key Laboratory of Science and Technology on Environmental Space Situation Awareness, Chinese Academy of Sciences, Beijing 100190, China
  • 3University of Chinese Academy of Sciences, Beijing 100049, China
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    DOI: 10.3788/IRLA20210100 Cite this Article
    Zhaoai Yan, Xiong Hu, Wenjie Guo, Shangyong Guo, Yongqiang Cheng, Bingyan Zhang, Zhifang Chen, Weibo Zhao. Near space Doppler lidar techniques and applications (Invited)[J]. Infrared and Laser Engineering, 2021, 50(3): 20210100 Copy Citation Text show less

    Abstract

    A vehicle-mounted sodium fluorescence scattering Doppler lidar and a vehicle-mounted 532 nm Rayleigh scattering Doppler lidar have been developed for wind and temperature observations in near space region. Three-frequency-ratio Doppler measurement method was used to obtain wind and temperature from 80 km to 100 km in the sodium fluorescence scattering Doppler lidar. And Iodine absorption line edge technique was employed to measure wind speed below 70 km, integration method was used to measure temperature below 80 km in the 532 nm Rayleigh scattering Doppler lidar. When the range resolution was 1 km and the temporal resolution was 1 h, the uncertainties of measured temperature and wind speed were about 0.2 K and 0.4 m/s at 40 km, 1.5 K and 5.5 m/s at 70 km, 0.3 K and 1.0 m/s at 92 km. The two lidars have carried out long-term observations in Beijing, Qinghai, Gansu. The data are used for near space environmental characteristics researches.
    Zhaoai Yan, Xiong Hu, Wenjie Guo, Shangyong Guo, Yongqiang Cheng, Bingyan Zhang, Zhifang Chen, Weibo Zhao. Near space Doppler lidar techniques and applications (Invited)[J]. Infrared and Laser Engineering, 2021, 50(3): 20210100
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