Inversion Model of Urban Atmospheric Aerosol Pollution Process Based on Lidar Observation Technology
Atmospheric aerosol pollution causes meteorological problems such as haze,dust storm and cloud droplets.In order to analyze the aerosol optical thickness and the pollution degree of urban atmosphere,an inversion model of urban atmospheric aerosol pollution process based on lidar observation technology is constructed.The atmosphere is observed by lidar,and the ra-dar signal reflected from the atmosphere is collected for background noise processing,range correction and coincidence factor correction.The aerosol extinction coefficient in the lidar equation is obtained by the Fernald inversion method,the extinction coefficient is input into the aerosol optical thickness model,the optical thickness parameters are obtained,and the pollution de-gree is determined by comparing the grade classification table.The results show that under the application of the constructed inversion model,the aerosol optical thickness in the middle,southwest and northeast of the study area is larger,all above 2.0,and the pollution degree reaches severe pollution,while the pollution degree in other areas is smaller.
万方数据
维普
