Abstract
A mobile Doppler lidar system has been developed to simultaneously measure zonal and meridional winds and temperature from 30 to 70km. Each of the two zonal and meridional wind subsystems employs a ~15W power, 532nm laser and a 1m diameter telescope. Iodine vapor filters are used to stabilize laser frequency and to detect the Doppler shift of backscattered signal. The integration method is used for temperature measurement. Experiments were carried out using the mobile Doppler lidar in August 2014 at Qinghai, China (91°E, 38°N). The zonal wind was measured from 20 to 70km at a 3km spatial resolution and 2h temporal resolution. The measurement error is about 0.5m/s at 30km, and 10m/s at 70km. In addition, the temperature was measured from 30 to 70km at 1km spatial resolution and 1h temporal resolution. The temperature measurement error is about 0.4K at 30km, and 8.0K at 70km. Comparison of the lidar results with the temperature of the Sounding of the Atmosphere using Broadband Emission Radiometry (SABER), the zonal wind of the Modern-Era Retrospective Analysis for Re-search and Applications (MERRA), and radiosonde zonal wind shows good agreement, indicating that the Doppler lidar results are reliable.
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