| 差分吸收光谱技术监测气溶胶光学厚度及大气能见度的研究 |
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| 引用本文： | 司福祺,刘建国,谢品华,张玉钧,刘文清,久世宏明,刘诚,竹内延夫.差分吸收光谱技术监测气溶胶光学厚度及大气能见度的研究[J].光学学报,2006,26(7):61-964. |
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| 作者姓名： | 司福祺 刘建国 谢品华 张玉钧 刘文清 久世宏明 刘诚 竹内延夫 |
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| 作者单位： | 1. 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,合肥,230031
2. 日本千叶大学环境与遥感中心,日本,千叶县,263-8522 |
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| 基金项目： | 中国科学院资助项目
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中国科学院知识创新工程项目 |
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| 摘 要： | 介绍了一种基于闪烁氙灯光源、利用差分光谱吸收(DOAS)技术监测大气气溶胶的新方法。提出用大气能见度确定系统校正参量的可行做法,解决了差分光谱吸收探测气溶胶领域原始光强难以测量的难题。并对350~650 nm范围内的气溶胶光学厚度进行反演,通过与多道太阳光度计的对比证实方法的可行性,实验中发现气溶胶光学厚度与悬浮颗粒物(SPM)浓度具有很好的相关性。同时,利用气溶胶550 nm处的消光系数确定大气能见度。
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| 关 键 词： | 大气光学 气溶胶 差分吸收光谱 光学厚度 能见度 |
| 文章编号： | 0253-2239（2006）07-0961-4 |
| 收稿时间： | 2005-06-21 |
| 修稿时间： | 2005-11-20 |
Determination of Aerosol Optical Thickness and Atmospheric Visibility by Differential Optical Absorption Spectroscopy |
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| Si Fuqi,Liu Jianguo,Xie Pinhua,Zhang Yujun,Liu Wenqing,Hiroaki Kuze,Liu Cheng,Nobuo Takeuchi.Determination of Aerosol Optical Thickness and Atmospheric Visibility by Differential Optical Absorption Spectroscopy[J].Acta Optica Sinica,2006,26(7):61-964. |
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| Authors: | Si Fuqi Liu Jianguo Xie Pinhua Zhang Yujun Liu Wenqing Hiroaki Kuze Liu Cheng Nobuo Takeuchi |
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| Abstract: | With the method of differential optical absorption spectroscopy (DOAS), aerosol along the light path is measured with a flashlight source. After calibrating the system parameters by the visibility in the clear day, the difficulty to measure the original light intensity in aerosel measurement with DOAS is resolved, and the optical thickness from 350～650 nm is obtained with method of inversion. Comparison with solar photometer and good correlation is found between aerosol optical thickness and suspended particle matter concentration. In addition, the atmospheric visibility is retrieved by extinction coefficient at 550 nm. |
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| Keywords: | atmospheric optics aerosol differential optical absorption spectroscopy optical thickness visibility |
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