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
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
AbstractWith 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.
Received: 11 May 2005
Revised: 20 July 2005
Accepted manuscript online:
Fund: Project supported by National Natural Science Foundation of China (Grant No 10274080).
Cite this article:
Si Fu-Qi (司福祺), Liu Jian-Guo (刘建国), Xie Pin-Hua (谢品华), Zhang Yu-Jun (张玉钧), Liu Wen-Qing (刘文清), Hiroaki Kuze, Liu Cheng (刘诚), Nofel Lagrosas, Nobuo Takeuchi Determination of aerosol extinction coefficient and mass extinction efficiency by DOAS with a flashlight source 2005 Chinese Physics 14 2360
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