量子电子学报, 2004, 21 (1): 103, 网络出版: 2006-05-15
气溶胶粒子消光效率因子的特性研究及尺度谱的拟合
Studies on Extinction Efficiency Factor Properties of Aerosol Particle and the Fit of Size Distribution
大气光学 消光效率因子 谱分布 消光系数比值 atmospheric optics extinction efficiency factor spectrum distribution ratio of extinction coefficient
摘要
本文利用Mie散射理论,计算出单个球形粒子的消光效率因子Qext,分析它随半径r变化的特性.利用消光效率因子计算出Junge型气溶胶消光系数与波长的关系,并算出Deirmendjian型气溶胶的5种波长消光系数比值表(波长分别为355 nm、532 nm、683 nm、1064 nm、1560 nm),根据此表就可拟合出气溶胶的尺度谱.
Abstract
In this paper, we calculate the extinction efficiency factor Qext of single spherical particle by using Mie scattering theory, and analyse its characteristics with the increasing of radius r. The relationship between extinction coefficient and laser wavelength is calculated for Junge model. For Deimendjian model the ratios table of 5 lidar wavelengths extinction coefficients is calculated, and the size distribution can be fit according to the table.
陶宗明, 张寅超, 张改霞, 吕勇辉, 刘小勤, 谭锟, 邵石生, 胡欢陵. 气溶胶粒子消光效率因子的特性研究及尺度谱的拟合[J]. 量子电子学报, 2004, 21(1): 103. 陶宗明, 张寅超, 张改霞, 吕勇辉, 刘小勤, 谭锟, 邵石生, 胡欢陵. Studies on Extinction Efficiency Factor Properties of Aerosol Particle and the Fit of Size Distribution[J]. Chinese Journal of Quantum Electronics, 2004, 21(1): 103.