Elastic backscatter lidar in PBL study

摘要

This article summarizes representative examples of elastic backscatter lidar observations in Planetary Boundary Layer(PBL) and in troposphere. The measurement objectives are the diurnal variation of the PBL stratification and cases oflong-range transport of aerosol in the troposphere. Two lidars setups are used in the presented measurements. One is thetraditional one, based on laser with low-repetition rate and high pulse energy, while the other setup is based onmicropulse laser with high pulse repetition rate. Both lidars provide highly satisfactory results, each in its optimalmeasurement altitudes. The presented examples for aerosol transport include cases for Sahara dust and volcano ash. Thetransport studies are supported with back-trajectory analysis. The PBL studies include verification of the generallyaccepted processing methods for aerosol stratification determination, as well as example of diurnal development. Thediurnal development of the PBL, determined by the backscatter lidar is supported with measurements with standardmeteorological instruments.