Acta Optica Sinica, Volume. 29, Issue 9, 2458(2009)
Determination of Plume by Hyperspectral Imaging Differential Optical Absorption Spectroscopy
An optical remote sensing method for measuring the air pollutants (such as SO2, NO2) emitted from sources is studied by use of a hyperspectral imaging differential optical absorption spectroscopy (DOAS) instrument to scan the plume from pollution source on a scan table. The column density of air pollutant is retrieved from processing of the scattered sun light spectra collected by the instrument by means of the spectral analysis method of passive DOAS. Combing with the scan table during the measurement, the map of trace gases can be estimated. The hyperspectral imaging differential optical absorption spectroscopy system consisted of imaging DOAS spectrometer、UV lens and scan table is described in detail, which was carried to scan the plume from a fossil power plant in a field measurement. This technique provides a simple and quick method for imaging the air pollutants.
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Si Fuqi, Xie Pinhua, Liu Yu, Dou Ke, Xu Jin, Liu Wenbing, Liu Wenqing. Determination of Plume by Hyperspectral Imaging Differential Optical Absorption Spectroscopy[J]. Acta Optica Sinica, 2009, 29(9): 2458
Category: Instrumentation, Measurement and Metrology
Received: Oct. 31, 2008
Accepted: --
Published Online: Oct. 9, 2009
The Author Email: Fuqi Si (sifuqi@aiofm.ac.cn)