| A Scanning Multi-Axis Differential Optical Absorption Spectroscopy System for Measurement of Tropospheric NO2 in Beijing |
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| 引用本文： | 李昂 谢品华 刘诚 刘建国 刘文清. A Scanning Multi-Axis Differential Optical Absorption Spectroscopy System for Measurement of Tropospheric NO2 in Beijing[J]. 中国物理快报, 2007, 24(10): 2859-2862 |
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| 作者姓名： | 李昂 谢品华 刘诚 刘建国 刘文清 |
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| 作者单位： | [1]Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031 [2]Satellite Group Mainz-Heidelberg, Mckax Plan Institute for Chemistry, Mainz D-55128, Germany |
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| 基金项目： | Supported by National High-Tech Research and Development Programme of China under Grant No 2006AA06A303. |
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| 摘 要： | A scanning multi-axis differential optical absorption spectroscopy （DOAS） system is developed for monitoring tropospheric NO2 abundance. Measurements at different viewing angles near the horizon can be performed sequentially with one telescope collecting scattered sunlight reflected by a moving mirror. Tropospheric NO2 diurnal variations can be derived from slant column densities （SCDs） of different elevation angles. The result from a field campaign in Beijing in summer of 2005 reveals potential possibility for the monitoring of tropospheric NO2 by multi-axis DOAS technique.
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| 关 键 词： | 吸光作用 光学技术 光谱学 对流层 |
| 收稿时间： | 2007-05-08 |
| 修稿时间： | 2007-05-08 |
A Scanning Multi-Axis Differential Optical Absorption Spectroscopy System for Measurement of Tropospheric NO2 in Beijing |
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| LI Ang,XIE Pin-Hua,LIU Cheng,LIU Jian-Guo,LIU Wen-Qing. A Scanning Multi-Axis Differential Optical Absorption Spectroscopy System for Measurement of Tropospheric NO2 in Beijing[J]. Chinese Physics Letters, 2007, 24(10): 2859-2862 |
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| Authors: | LI Ang XIE Pin-Hua LIU Cheng LIU Jian-Guo LIU Wen-Qing |
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| Affiliation: | 1.Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031; 2.Satellite Group Mainz-Heidelberg, Max Planck Institute for Chemistry, Mainz D-55128, Germany |
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| Abstract: | A scanning multi-axis differential optical absorption spectroscopy (DOAS) system is developed for monitoring tropospheric NO2 abundance. Measurements at different viewing angles near the horizon can be performed sequentially with one telescope collecting scattered sunlight reflected by a moving mirror. Tropospheric NO2 diurnal variations can be derived from slant column densities (SCDs) of different elevation angles. The result from a field campaign in Beijing in summer of 2005 reveals potential possibility for the monitoring of tropospheric NO2 by multi-axis DOAS technique. |
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| Keywords: | 42.68.Ca 07.88.+y 92.60.Sz |
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