临近空间多普勒激光雷达技术及其应用（特邀）

研制了车载钠荧光散射多普勒激光雷达和车载532 nm瑞利散射多普勒激光雷达用于测量临近空间大气温度和风场。在钠荧光散射多普勒激光雷达中使用了三频比率多普勒测量方法获得80~100 km的温度和风场。在532 nm瑞利散射多普勒激光雷达中，使用碘分子吸收线边缘技术测量70 km 以下的风场，使用积分方法测量80 km以下的温度。在距离分辨率为1 km、时间分辨率为1 h情况下，40 km处的大气温度、风速测量不确定度约为0.2 K和0.4 m/s；70 km处约为1.5 K和5.5 m/s；92 km处约为0.3 K和1.0 m/s。这两部激光雷达已经在北京、青海、甘肃等地进行了长期观测，应用于临近空间环境特性研究。

Near space Doppler lidar techniques and applications(Invited)

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 below80 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 at40 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.