Investigate the relationship between multiwavelength lidar ratios and aerosol size distributions using aerodynamic particle sizer spectrometer

被引:7
|
作者
Zhao, Hu [1 ,2 ]
Hua, Dengxin [1 ]
Mao, Jiandong [2 ]
Zhou, Chunyan [2 ]
机构
[1] Xian Univ Technol, Sch Mech & Precis Instrument Engn, Xian 710048, Peoples R China
[2] Beifang Univ Nationalities, Coll Elect & Informat Engn, Yinchuan 750021, Peoples R China
基金
中国国家自然科学基金;
关键词
Lidar ratio; Aerosol size distribution; Multiwavelength; Effective radius; Volume C/F ratio; EXTINCTION COEFFICIENTS; BACKSCATTER LIDAR; PARAMETERS; INVERSION; SENSITIVITY; SCATTERING;
D O I
10.1016/j.jqsrt.2016.07.012
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
The real aerosol size distributions were obtained by aerodynamic particle sizer spectrometer (APS) in China YinChuan. The lidar ratios at wavelengths of 355 nm, 532 nm and 1064 nm were calculated using Mie theory. The effective radius of aerosol particles r(eff) and volume C/F ratio (coarse/fine) V-c/f were retrieved from the real aerosol size distributions. The relationship between multiwavelength lidar ratios and particle r(eff) and V-c/f were investigated. The results indicate that the lidar ratio is positive correlated to the particle r(eff) and V-c/f. The lidar ratio is more sensitive to the coarse particles. The short wavelength lidar ratio is more sensitive to the particle V-c/f and the long wavelength lidar ratio is more sensitive to the particle reff. The wavelength dependency indicated that the lidar ratios decrease with increasing the wavelength. The lidar ratios are almost irrelevant to the shape and total particles of aerosol size distributions. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码:12 / 19
页数:8
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