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DOI	10.1016/j.atmosenv.2020.118076
	Measurements of atmospheric aerosol hygroscopic growth based on multi-channel Raman-Mie lidar
	Zhao Y.; Wang X.; Cai Y.; Pan J.; Yue W.; Xu H.; Wang J.
发表日期	2020
ISSN	13522310
英文摘要	In this study, an effective method with a multi-channel Raman-Mie lidar has been proposed to detect the hygroscopic growth of atmospheric aerosol in the boundary layer, and the effect of aerosol hygroscopic growth on the optical and microphysical properties of aerosol particles is studied. The vertical relative humidity profile is obtained by combining calibrated water vapor mixing ratio and temperature profiles from Raman-Mie lidar. Two cases were selected in Hefei to analyze the aerosol hygroscopic growth. Case studies show that the increase of the backscatter coefficient of aerosol is consistent with the increase of relative humidity, and the decrease of Ångstrom exponent indicates the increasing aerosol particle size due to the hygroscopic growth process. The Kasten model is used to fit the aerosol hygroscopic enhancement factor, and the b value from the Kasten parameterization for Case II is much larger than that for Case I, which shows the stronger hygroscopicity in Case II. The results indicate that the multi-channel Raman-Mie lidar has potential in the measurements of the hygroscopic growth of aerosols. © 2020 Elsevier Ltd
英文关键词	Aerosol; Hygroscopic growth; Raman-mie lidar
语种	英语
scopus关键词	Atmospheric boundary layer; Atmospheric humidity; Atmospheric thermodynamics; Optical radar; Particle size; Particle size analysis; Aerosol particle sizes; Aerosol particles; Backscatter coefficients; Enhancement factor; Hygroscopic growth; Microphysical property; Temperature profiles; Water vapor mixing ratio; Atmospheric aerosols; aerosol; article; boundary layer; case report; clinical article; humidity; particle size; water vapor; wettability
来源期刊	Atmospheric Environment
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/153069
作者单位	Shandong Provincial Engineering and Technical Center of Light Manipulations & Shandong, Provincial Key Laboratory of Optics and Photonic Device, School of Physics and Electronics, Shandong Normal University, Jinan, 250014, China
推荐引用方式 GB/T 7714	Zhao Y.,Wang X.,Cai Y.,et al. Measurements of atmospheric aerosol hygroscopic growth based on multi-channel Raman-Mie lidar[J],2020.
APA	Zhao Y..,Wang X..,Cai Y..,Pan J..,Yue W..,...&Wang J..(2020).Measurements of atmospheric aerosol hygroscopic growth based on multi-channel Raman-Mie lidar.Atmospheric Environment.
MLA	Zhao Y.,et al."Measurements of atmospheric aerosol hygroscopic growth based on multi-channel Raman-Mie lidar".Atmospheric Environment (2020).