| Determination of aerosol extinction coefficient and mass extinction efficiency by DOAS with a flashlight source |
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| 作者姓名： | 司福祺 刘建国 谢品华 张玉钧 刘文清 KuzeHiroaki 刘诚 LagrosasNofel TakeuchiNobuo |
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| 作者单位： | 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;Key Laboratory of Environmental Optics & Technology, Anhui Institute of Optics and Fine Mechanics,
Chinese Academy of Sciences, Hefei 230031, China;Key Laboratory of Environmental Optics & Technology, Anhui Institute of Optics and Fine Mechanics,
Chinese Academy of Sciences, Hefei 230031, China;Key Laboratory of Environmental Optics & Technology, Anhui Institute of Optics and Fine Mechanics,
Chinese Academy of Sciences, Hefei 230031, China;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;Center for Environmental Remote Sensing, Chiba University,Chiba 263-8522, Japan;Center for Environmental Remote Sensing, Chiba University,Chiba 263-8522, Japan;Center for Environmental Remote Sensing, Chiba University,Chiba 263-8522, Japan |
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| 基金项目： | 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 7.6m^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.
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| 关 键 词： | 气溶胶 消光系数 吸收光谱 消光效率 悬浮粒子 |
| 收稿时间： | 2005-05-11 |
| 修稿时间： | 2005-05-112005-07-20 |
Determination of aerosol extinction coefficient and mass extinction efficiency by DOAS with a flashlight source |
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| Si Fu-Qi,Liu Jian-Guo,Xie Pin-Hu,Zhang Yu-Jun,Liu Wen-Qing,Hiroaki Kuze,Liu Cheng,Nofel Lagrosas and Nobuo Takeuchi.Determination of aerosol extinction coefficient and mass extinction efficiency by DOAS with a flashlight source[J].Chinese Physics B,2005,14(11):2360-2364. |
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| Authors: | Si Fu-Qi Liu Jian-Guo Xie Pin-Hu Zhang Yu-Jun Liu Wen-Qing Hiroaki Kuze Liu Cheng Nofel Lagrosas and Nobuo Takeuchi |
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| 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. |
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| Keywords: | aerosol extinction coefficient differential absorption optical spectroscopy mass extinction efficiency size distribution |
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