Determination of aerosol extinction coefficient and mass extinction efficiency by DOAS with a flashlight source

作     者：司福祺 刘建国 谢品华 张玉钧 刘文清 Hiroaki Kuze 刘诚 Nofel Lagrosas Nobuo Takeuchi 

作者机构：Key Laboratory of Environmental Optics & Technology Anhui Institute of Optics and Fine Mechanics Chinese Academy of Sciencess Hefei 230031 China Center for Environmental Remote Sensing Chiba University Chiba 263-8522 Japan 

出 版 物：《Chinese Physics B》 (中国物理B（英文版）)

年 卷 期：2005年第14卷第11期

页      面：2360-2364页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 

基　　金：Project supported by National Natural Science Foundation of China (Grant No 10274080) 

主　　题：aerosol extinction coefficient differential absorption optical spectroscopy mass extinction efficiency size distribution 

摘      要：With the method of differential optical absorption spectroscopy （DOAS）, average concentrations of aerosol particles along light path were measured with a flashlight source in Chiba area during the period of one month. The optical thickness at 550 nm is compared with the concentration of ground-measured suspended particulate matter （SPM）. Good correlations are found between the DOAS and SPM data, leading to the determination of the aerosol mass extinction efficiency （MEE） to be possible in the lower troposphere. The average MEE value is about 7.6m^2.g^-1 , and the parameter exhibits a good correlation with the particle size as determined from the wavelength dependence of the DOAS signal intensity.