| 基于转动拉曼-米激光雷达拟合大气边界层内气溶胶光学厚度与PM2.5 |
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| 引用本文： | 陈炳龙,张寅超,陈思颖,陈和,郭磐.基于转动拉曼-米激光雷达拟合大气边界层内气溶胶光学厚度与PM2.5[J].北京理工大学学报,2016,36(8):857-861. |
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| 作者姓名： | 陈炳龙 张寅超 陈思颖 陈和 郭磐 |
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| 作者单位： | 北京理工大学光电成像技术与系统教育部重点实验室,北京,100081;北京理工大学光电成像技术与系统教育部重点实验室,北京,100081;北京理工大学光电成像技术与系统教育部重点实验室,北京,100081;北京理工大学光电成像技术与系统教育部重点实验室,北京,100081;北京理工大学光电成像技术与系统教育部重点实验室,北京,100081 |
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| 基金项目： | 国家自然科学基金资助项目（61178072） |
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| 摘 要： | 提出一种利用转动拉曼-米散射激光雷达米弹性散射信号与转动拉曼散射信号比值来拟合大气边界层1 km以内气溶胶光学厚度与PM2.5值的方法. 该方法消除了几何因子对近地面探测过渡区所带来的误差，而且消除了近地面大气湿度的影响，能够获得高精度的气溶胶后向散射系数，并在此基础上推导了气溶胶光学厚度（AOD）的计算方法，最后利用实验室转动拉曼-米激光雷达系统测量的2013年北京地区气溶胶数据，拟合获得了2013年北京地区冬夏两季AOD-PM2.5经验公式.
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| 关 键 词： | 大气光学 激光雷达 PM2.5 散射 气溶胶光学厚度 |
| 收稿时间： | 2015/5/19 0:00:00 |
Fitting Aerosol Optical Depth and PM2.5 in Atmospheric Boundary Layer by Using a Rotational Raman-Mie Lidar |
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| CHEN Bing-long,ZHANG Yin-chao,CHEN Si-ying,CHEN He and GUO Pan.Fitting Aerosol Optical Depth and PM2.5 in Atmospheric Boundary Layer by Using a Rotational Raman-Mie Lidar[J].Journal of Beijing Institute of Technology(Natural Science Edition),2016,36(8):857-861. |
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| Authors: | CHEN Bing-long ZHANG Yin-chao CHEN Si-ying CHEN He and GUO Pan |
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| Institution: | Key Laboratory of Photoelectronic Imaging Technology and System, Ministry of Education of China, Beijing Institute of Technology, Beijing 100081, China |
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| Abstract: | A method was presented for fitting aerosol optical depth and PM2.5 within 1 km of atmospheric boundary layer by using the ratio of Mie elastic scattering signal and Raman scattering signal of the rotational Raman-Mie lidar. It can eliminate the error brought by the geometric form factor and effects of atmospheric humidity and can obtain a high accuracy of aerosol scattering coefficients. And then an arithmetic was derived for the aerosol optical depth (AOD). Finally, the aerosol data that measured by the rotational Raman-Mie lidar system in laboratory for Beijing area in 2013, were used to get the experience formulas of AOD-PM2.5 for winter and summer in 2013 Beijing area. |
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| Keywords: | atmospheric optics lidar PM2 5 scattering aerosol optical depth |
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