| 反演波段对DOAS测量大气中O_3的性能影响研究 |
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| 引用本文： | 付强,彭夫敏,刘文清,谢品华,罗涛,司福祺,李素文.反演波段对DOAS测量大气中O_3的性能影响研究[J].光谱学与光谱分析,2009,29(8):2126-2130. |
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| 作者姓名： | 付强 彭夫敏 刘文清 谢品华 罗涛 司福祺 李素文 |
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| 作者单位： | 1. 中国科学院合肥物质研究院,安徽,合肥,230031
2. 安徽大学化学化工学院,安徽,合肥,230039 |
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| 基金项目： | 国家自然科学基金，中国科学院知识创新工程重大项目，安徽大学人才科研启动基金 |
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| 摘 要： | 臭氧(O3)浓度通常被认为是一个地方污染水平的基准,所以其绝对值的准确性至关藿要.在差分光学吸收光谱技术(DOAS)对O3的测量过程中,光谱反演波段的选择可直接决定O3浓度的测量准确度.文章主要研究了在不同光谱波段O3特征吸收结构和差分光学厚度(D')的不同,在不同光谱波段O3浓度反演的干扰来源以及影响程度,确定了实际检测时大气消光对不同波段光强的影响,最后通过对多种污染物标准气体进行了同时临测,计算出标准气体在不同光谱分辨率不同O3浓度时的测量误差,确定了对O3的最适用光谱波段范围.在此波段既能够实现对痕量气体的准确定性定量,又能达到测量所需要的高灵敏度,强选择性和适用的时间分辨率.
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| 关 键 词： | 大气光学 环境监测 差分吸收光游 检测限 特征吸收结构 |
| 收稿时间： | 2008/5/28 |
The Effect of Spectral Range on the Measurement of Ozone in the Atmosphere by DOAS |
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| FU Qiang,PENG Fu-min,LIU Wen-qing,XIE Pin-hua,LUO Tao,SI Fu-qi,LI Su-wen.The Effect of Spectral Range on the Measurement of Ozone in the Atmosphere by DOAS[J].Spectroscopy and Spectral Analysis,2009,29(8):2126-2130. |
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| Authors: | FU Qiang PENG Fu-min LIU Wen-qing XIE Pin-hua LUO Tao SI Fu-qi LI Su-wen |
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| Institution: | FU Qiang1,PENG Fu-min2,LIU Wen-qing1,XIE Pin-hua1,LUO Tao1,SI Fu-qi1,LI Su-wen11. Key Laboratory of Environmental Optical & Technology,Anhui Institute of Optics & Fine Mechanics,Chinese Academy of Sciences,Hefei 230031,China2. College of Chemistry , Chemical Engineering,Anhui University,Hefei 230039,China |
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| Abstract: | Ozone (O3) often serves as the benchmark for the overall pollution level of a given airshed and it is critical that the measurement technique be accurate and precise. In the DOAS measurement,the accuracy of O3 concentration is determined by the selected spectral range. The present paper focuses on the effect of spectral range on the detected characteristic absorption structure of O3,and the variation of differential cross section of O3 with the change in spectral range and the source of interference in diff... |
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| Keywords: | Atmospheric optics Environmental monitoring Differential optical absorption spectroscopy Detection limit Characteristic absorption structure |
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