| 基于红外掩日通量法(SOF)污染源排放气体浓度时空分布反演算法研究 |
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| 引用本文： | 刘志明,刘文清,高闽光,童晶晶,张天舒,徐亮,魏秀丽,金岭,王亚萍,陈军.基于红外掩日通量法(SOF)污染源排放气体浓度时空分布反演算法研究[J].物理学报,2010,59(8):5397-5405. |
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| 作者姓名： | 刘志明 刘文清 高闽光 童晶晶 张天舒 徐亮 魏秀丽 金岭 王亚萍 陈军 |
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| 作者单位： | 中国科学院安徽光学精密机械研究所环境光学中心,环境光学与技术重点实验室,合肥 230031 |
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| 基金项目： | 国家自然科学基金(批准号:60708100),国家高技术研究发展计划(批准号:2007AA061504)资助的课题. |
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| 摘 要： | 介绍了在傅里叶变换红外光谱(FTIR)技术基础上发展起来的一种监测污染源有害气体排放率的新方法——红外掩日通量(solar occultation flux,SOF)法.在理论上建立了太阳辐射两层传输模型,根据比尔定律阐述了计算污染物透过率的方法.详细介绍了如何从HITRAN,NIST和QAsoft三种红外数据库中提取气体标准吸收截面.介绍了基于Levenberg-Marquardt非线性最小二乘法反演污染气体柱浓度的算法和污染源气体排放率计算算法.介绍了整套装置的组成部分和太阳跟踪装置的结构.对合肥某一化肥厂的氨气排放进行了测量,从实验结果可以看出,测量的柱浓度分布准确地反应了污染物排放和扩散情况,证明了污染源排放气体浓度时空分布反演算法的正确性.
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| 关 键 词： | 红外掩日通量法 傅里叶变换红外光谱 气体排放 环境监测 |
| 收稿时间： | 2009-09-21 |
Study of the retrieval algorithm of emission gas spatio-temporal distribution of pollution source using the infrared Solar Occultation Flux (SOF) method |
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| Liu Zhi-Ming,Liu Wen-Qing,Gao Min-Guang,Tong Jing-Jing,Zhang Tian-Shu,Xu Liang,Wei Xiu-Li,Jin Ling,Wang Ya-Ping,Chen Jun.Study of the retrieval algorithm of emission gas spatio-temporal distribution of pollution source using the infrared Solar Occultation Flux (SOF) method[J].Acta Physica Sinica,2010,59(8):5397-5405. |
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| Authors: | Liu Zhi-Ming Liu Wen-Qing Gao Min-Guang Tong Jing-Jing Zhang Tian-Shu Xu Liang Wei Xiu-Li Jin Ling Wang Ya-Ping Chen Jun |
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| Institution: | Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Science, Hefei 230031, China;Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Science, Hefei 230031, China;Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Science, Hefei 230031, China;Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Science, Hefei 230031, China;Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Science, Hefei 230031, China;Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Science, Hefei 230031, China;Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Science, Hefei 230031, China;Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Science, Hefei 230031, China;Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Science, Hefei 230031, China;Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Science, Hefei 230031, China |
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| Abstract: | Method of solar occultation flux infrared spectroscopy to detect the pollution emission flux of sources is presented in detail. It is developed based on the FTIR technique. A Two-layer radiative transfer model is established theoretically. Algorithm of transmissivity calculation of pollution gas is expatiated. The method to obtain the absorption coefficient of molecules from HITRAN, NIST and QAsoft databases is mentioned. Levenberg-Marquardt algorithm is used to calculate column concentration of pollution gas from pollution source. The distribution of column concentration is drawn by software developed by our group. The total system and the sun tracker are shown in the paper. The distribution of column concentration of NH3 is measured in a chemical plant in Hefei China. The calculated distribution of column concentration of NH3 is consistent with the measured one in the chemical plant. |
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| Keywords: | infrared solar occultation flux FTIR emission gas environment monitoring |
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