A Scanning Multi-Axis Differential Optical Absorption Spectroscopy System for Measurement of Tropospheric NO2 in Beijing  

作　　者：李昂 谢品华 刘诚 刘建国 刘文清 

机构地区：[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

出　　处：《Chinese Physics Letters》2007年第10期2859-2862,共4页中国物理快报（英文版）

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.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.

关 键 词：coated conductor buffer layer self-epitaxy CEO2 

分 类 号：O43[机械工程—光学工程]