| 空间垂直方向气溶胶消光特性的研究 |
| |
| 引用本文： | 李丽芳,张记龙,李晓,王志斌,陈媛媛.空间垂直方向气溶胶消光特性的研究[J].光散射学报,2013,25(1):19-23. |
| |
| 作者姓名： | 李丽芳 张记龙 李晓 王志斌 陈媛媛 |
| |
| 作者单位： | 1. 中北大学山西省光电信息与仪器工程技术研究中心,太原,030051
2. 中北大学山西省光电信息与仪器工程技术研究中心,太原030051;中北大学仪器科学与动态测试教育部重点实验室,太原030051 |
| |
| 基金项目： | 国家自然科学基金仪器专项基金(61127015);国家自然基金主任基金(61040062);国际科技合作项目(S2012ZR0247);山西省国际科技合作项目(2010081038) |
| |
| 摘 要： | 在已知大气气溶胶折射率和气溶胶谱分布的基础上,对空间垂直方向的气溶胶消光特性进行了研究。文章利用Mie散射理论计算讨论了气溶胶的消光、散射、吸收系数随各参数的变化,并在MATLAB中对变化情况进行了仿真。结果表明,粒子半径与入射波长大小相近时气溶胶的消光最强,并且随着能见度的增大,气溶胶衰减系数减小。这些结论可以为红外辐射的大气衰减计算和分析提供依据。
|
| 关 键 词： | 气溶胶 消光特性 消光系数 效率因子 |
| 收稿时间： | 2012/2/28 |
Study of the Aerosol Extinction Characteristics in Vertical Direction |
| |
| LI Li-fang
,
ZHANG Ji-long
,
LI Xiao
,
WANG Zhi-bin
,
CHEN Yuan-yuan.Study of the Aerosol Extinction Characteristics in Vertical Direction[J].Chinese Journal of Light Scattering,2013,25(1):19-23. |
| |
| Authors: | LI Li-fang ZHANG Ji-long LI Xiao WANG Zhi-bin CHEN Yuan-yuan |
| |
| Institution: | 1,2(1.Engineering Technology Research Center of Shanxi Province for Optoelectronic Information and Instrument,Taiyuan 030051,China; 2.Key Laboratory of Instrumentation Science & Dynamic Measurement(North University of China),Ministry of Education,Taiyuan 030051,China) |
| |
| Abstract: | Based on the refractive indices of atmospheric aerosols and measured values of aerosol size distribution function,aerosol extinction characteristics have been studied in vertical space.The paper uses Mie scattering theory to calculate and discuss the mathematical characters of the extinction coefficient,scattering coefficient,absorption coefficient with the change of each parameter of aerosols and its simulation in MATLAB.The results show that extinction of aerosol particle is the strongest when the size of radius is close to the incident wavelength,and with the increasing visibility,aerosol attenuation coefficient decreases.These results can provide reference for calculating and analyzing the attenuation of infrared radiation in the atmosphere. |
| |
| Keywords: | aerosol attenuation characteristics extinction coefficient efficiency factor |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
