大气混浊度系数和气溶胶粒子数的关系  

Relationship between the Turbidity Coefficient and the Quantum of Aerosol Particles in the Atmosphere,

作　　者：薛德强[1] 李怀瑾[2] 

机构地区：[1]山东省气象局 [2]南京大学大气科学系

出　　处：《环境科学》1991年第5期7-10,共4页Environmental Science

基　　金：国家自然科学基金

摘　　要：本文根据气溶胶消光特性——气溶胶粒子光学厚度是消光波长的函数,采用随机的最小二乘技术;数值反演了垂直气柱中气溶胶粘子大小分布,并且对反演的气溶胶粒子谱分布,采用数值积分算出半径大于0.3μm气溶胶粒子总数,求得了大气混浊度系数和半径大于0.3μm气溶胶粒子总数之间关系,用太原市实测气溶胶粒子数资料验证,效果较好.The turbidity coefficient indicates indirectly the numbers of aerosol particles in the atmosphere. .According to the extinction feature of aerosol, columner aerosol particle size distribution is inferred by numerically inverting par-ticulate optical depth measurements as a function of wavelength with a randomized rninimizationsearch-technique inversion algorithm. For each inverting size distribution, the total number of particles whose radius are greater than 0.3 μm is obtained by using a method of numerical integral. The relation is presented between the turbidity coefficient and the number of particles which radius are greater than 0.3 μm. Taking Taiyuan City as a case study, there was a good agreement between the data of ractical-measuretnents and the clculation.

关 键 词：空气污染 大气混浊度 气溶胶粒子数 

分 类 号：X510.2[环境科学与工程—环境工程]