Pulsed differential optical absorption spectroscopy applied to air pollution measurement in urban troposphere

Differential optical absorption spectroscopy (DOAS) is useful for various types of trace gas measurements in the lower troposphere. In this paper, we report the DOAS measurement conducted in Chiba, Japan during 2009 and 2010. An optical path length of 5.5 km is employed to measure the average concen...

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Bibliographic Details
Published in:	Journal of quantitative spectroscopy & radiative transfer Vol. 112; no. 2; pp. 277 - 284
Main Authors:	Kuriyama, Kenji, Kaba, Yasuto, Yoshii, Yotsumi, Miyazawa, Syuji, Manago, Naohiro, Harada, Ippei, Kuze, Hiroaki
Format:	Journal Article
Language:	English
Published:	Elsevier Ltd 2011
Subjects:	Aerosol Air pollution Differential optical absorption spectroscopy Trace gas Japan Differential optical absorption spectroscopy Trace gas Air pollution Aerosol
Online Access:	Get full text
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Summary:	Differential optical absorption spectroscopy (DOAS) is useful for various types of trace gas measurements in the lower troposphere. In this paper, we report the DOAS measurement conducted in Chiba, Japan during 2009 and 2010. An optical path length of 5.5 km is employed to measure the average concentration of NO 2 using a xenon aviation obstruction light that flashes every 1.5 s. By virtue of the high stability of the light source intensity, the intensity measurement enables the retrieval of aerosol extinction coefficient averaged over the optical path. The results are compared with the concurrent results of ground sampling and sunphotometer measurements.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	0022-4073 1879-1352
DOI:	10.1016/j.jqsrt.2010.06.010