Acta Optica Sinica, Volume. 31, Issue 11, 1101007(2011)
Retrieval of Atmospheric NO2 Vertical Profile from Multi-Axis Differential Optical Absorption Spectroscopy
Measurement of trace-gas vertical profile is very important for research of atmospheric pollution. The multi-axis differential optical absorption spectroscopy (MAX-DOAS) is used on trace-gas profile monitoring. Combing with radiative transfer models, trace gas vertical profile is derived from slant column densities of several elevation angles of MAX-DOAS with optimal estimation method. The parameters setup of retrieval algorithm and the characterization of the retrieval has been described in detail. MAX-DOAS is used to monitor NO2 profile of Hefei area. The measurement result is validated with long-path differential optical absorption spectroscopy (LP-DOAS), and the correlation coefficient is 0.80. This technique provides a simple and convenient method three-dimensional observation for air pollution.
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Zhou Haijin, Liu Wenqing, Si Fuqi, Xie Pinhua, Xu Jin, Dou Ke. Retrieval of Atmospheric NO2 Vertical Profile from Multi-Axis Differential Optical Absorption Spectroscopy[J]. Acta Optica Sinica, 2011, 31(11): 1101007
Category: Atmospheric Optics and Oceanic Optics
Received: May. 10, 2011
Accepted: --
Published Online: Oct. 21, 2011
The Author Email: Haijin Zhou (hjzhou@aiofm.ac.cn)