Investigations For Parametric Optimization In Inversion Of Lidar Return Signals And Characteristics Of Atmospheric Boundary Layer Over Chengdu

Atmospheric aerosol plays a very important role in physics and chemistry processes of atmosphere. It can directly disturb the radiation balance of the earth-air system by absorbing and scattering the solar radiation, produces directly climate effect. It can influence the optical characteristics, quantities and durations of the clouds as condense-cores, produces indirectly climate effect. The particles of aerosol can reduce the atmospheric visibility through absorbing and scattering. Moreover, aerosol can cause serious atmospheric pollution by way of absorbing or dissolving trace gas of atmosphere. So it is very significant to understand the optical characteristics and spatial-temporal distributions of all kinds of aerosol.Though its high temporal and spatial resolution, Mie scattering Lidar technique is a powerful tool to detect, in real time, the atmospheric return signals, using the aerosol as passive tracers of the atmospheric dynamical processes. Atmospheric extinction coefficient and backscatter coefficient are calculated by processing the return signals.Based on Lidar detecting and Klett's inversion algorithm, atmospheric optical parameters are obtained in this work. However, the selection of parameters largely...