城市污染气体分布的车载被动差分光学吸收光谱遥测技术研究

吴丰成; 李昂; 谢品华; 徐晋; 石鹏; 秦敏; 王曼华; 王界; 章勇

光谱学与光谱分析, 2011, 31 (3): 583, 网络出版: 2011-08-16

城市污染气体分布的车载被动差分光学吸收光谱遥测技术研究

Studies on the Remote Measurement of the Distribution of City Gaseous Pollutant by Mobile Passive Differential Optical Absorption Spectroscopy

论文大纲

吴丰成 ^*李昂谢品华徐晋石鹏秦敏王曼华王界章勇

作者单位

中国科学院安徽光学精密机械研究所环境光学与技术重点实验室, 安徽合肥230031

车载DOAS 污染气体分布 Mobile DOAS Gaseous pollutants distribution SO2 SO2 NO2 NO2

摘要

介绍了一种基于被动差分光学吸收光谱(differential optical absorption spectroscopy, DOAS)技术探测城市上空污染气体分布的光学遥测方法。采用安装在汽车上的被动DOAS系统对所测城区进行连续测量, 通过DOAS拟合方法处理采集的太阳散射光谱, 获得测量点上的污染气体柱密度。同时利用此车载DOAS技术对深圳城区进行了连续六天的观测实验, 得到了深圳市上空SO2, NO2的空间分布信息。从观测结果发现, 深圳市西边的污染较东边严重, SO2西边浓度均值约是东边的2.0倍, NO2约为3.6倍。并把在坝光点测量的车载DOAS结果与此站点的点式仪器测量结果对比, 两种仪器的测量结果具有相关性, SO2的相关系数R2=0.86, NO2的相关系数R2=0.57。实验结果表明车载DOAS的光学遥测方法为城市污染气体分布快速测量提供了一种有效的手段。

Abstract

An optical remote sensing method based on passive differential optical absorption spectroscopy for the measurement of the distribution of city gaseous pollutant was studied. The passive DOAS system, which was installed in a car, successively measures the interested area (such as city, industrial area) and the column density was obtained by DOAS fitting process using the zenith scattered sunlight. The mobile DOAS was applied to measurement in Shenzhen City during the continuous six days and got the distribution of SO2, NO2 in this paper. It showed that the pollution in the west is higher than in the east. The average concentration in the west is 2.0 times higher than the eastern for SO2 and 3.6 times for NO2. And comparison of the values between mobile DOAS and the point instrument was carried out in Baguang site. There was an agreement between the two instruments, the correlation coefficient was 0.86 for SO2, while 0.57 for NO2. The results indicate that this optical remote sensing method based on passive DOAS is an effective means of rapidly determining the distribution of city gaseous pollutant.

参考文献

[1] Kramer Louisa J, Leigh Roland J, Remedios John J, et al. J. Geophys. Res., 2008, 113: D16S39.1.

[2] Ordonez C, Richter A, Steinbacher M, et al. J. Geophys. Res., 2006, 111: D05310.

[3] de Beek R, Weber M, Rozanov V V, et al. Advances in Space Research, 2004, 34: 727.

[4] Zhang Yanxu, Tao Shu. Atmospheric Environment, 2009, 43: 812.

[5] Pregger Thomas, Friedrich Rainer. Environmental Pollution, 2009, 157: 552.

[6] Aikawa Masahide, Ohara Toshimasa, Hiraki Takatoshi, et al. Atmospheric Environment, 2010, 44: 381.

[7] Si Fuqi, Hiroaki Kuze, Yotsumi Yoshii, et al. Atmospheric Environment, 2005, 39: 4959.

[8] Platt U, Stutz J. Differential Optical Absorption Spectroscopy. Springer, 2004.

[9] Johansson Mattias, Galle Bo, Yu Tong, et al. Atmospheric Environment, 2008, 42: 6926.

[10] Johansson M, Rivera C, de Foy B, et al. Atmospheric Chemistry and Physics Discussions, 2009, 9: 865.

[11] Rivera C, W¨ohrnschimmel H, Sosa G, et al. Atmospheric Chemistry and Physics Discussions, 2009, 9: 5153.

[12] Wagner T, Ibrahim O, Shaiganfar R, et al. Atmospheric Chemistry and Physics Discussions, 2009, 9: 2851.

[13] WANG Shu-lan, CHAI Fa-he, XIA Guang-feng, et al(王淑兰, 柴发合, 夏广锋, 等). Research of Environmental Sciences(环境科学研究), 2009, 22(10): 1128.

吴丰成, 李昂, 谢品华, 徐晋, 石鹏, 秦敏, 王曼华, 王界, 章勇. 城市污染气体分布的车载被动差分光学吸收光谱遥测技术研究[J]. 光谱学与光谱分析, 2011, 31(3): 583. WU Feng-cheng, LI Ang, XIE Pin-hua, XU Jin, SHI Peng, QIN Min, WANG Man-hua, WANG Jie, ZHANG Yong. Studies on the Remote Measurement of the Distribution of City Gaseous Pollutant by Mobile Passive Differential Optical Absorption Spectroscopy[J]. Spectroscopy and Spectral Analysis, 2011, 31(3): 583.

城市污染气体分布的车载被动差分光学吸收光谱遥测技术研究

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