中国物理B ›› 2005, Vol. 14 ›› Issue (11): 2360-2364.doi: 10.1088/1009-1963/14/11/037

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

KuzeHiroaki1, 刘诚1, LagrosasNofel1, TakeuchiNobuo1, 刘建国2, 谢品华2, 张玉钧2, 刘文清2, 司福祺3   

  1. (1)Center for Environmental Remote Sensing, Chiba University,Chiba 263-8522, Japan; (2)Key Laboratory of Environmental Optics & Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China; (3)Key Laboratory of Environmental Optics & Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China;Center for Environmental Remote Sensing, Chiba University,Chiba 263-8522, Japan
  • 收稿日期:2005-05-11 修回日期:2005-07-20 出版日期:2005-11-20 发布日期:2005-11-20
  • 基金资助:
    Project supported by National Natural Science Foundation of China (Grant No 10274080).

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

Si Fu-Qi (司福祺)ab, Liu Jian-Guo (刘建国)a, Xie Pin-Hua (谢品华)a, Zhang Yu-Jun (张玉钧)a, Liu Wen-Qing (刘文清)a, Hiroaki Kuzeb, Liu Cheng (刘诚)b, Nofel Lagrosasb, Nobuo Takeuchib    

  1. a Key Laboratory of Environmental Optics & Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China; b Center for Environmental Remote Sensing, Chiba University, Chiba 263-8522, Japan
  • Received:2005-05-11 Revised:2005-07-20 Online:2005-11-20 Published:2005-11-20
  • Supported by:
    Project supported by National Natural Science Foundation of China (Grant No 10274080).

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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 7.6m2$\cdot$g-1, and the parameter exhibits a good correlation with the particle size as determined from the wavelength dependence of the DOAS signal intensity.

关键词: aerosol extinction coefficient, differential absorption optical spectroscopy, mass extinction efficiency, size distribution

Abstract: 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 7.6m2$\cdot$g-1, and the parameter exhibits a good correlation with the particle size as determined from the wavelength dependence of the DOAS signal intensity.

Key words: aerosol extinction coefficient, differential absorption optical spectroscopy, mass extinction efficiency, size distribution

中图分类号:  (Aerosols and foams)

  • 82.70.Rr
78.20.Ci (Optical constants (including refractive index, complex dielectric constant, absorption, reflection and transmission coefficients, emissivity)) 89.60.-k (Environmental studies)