估算大气边界层内气溶胶干沉降速度和浓度垂直分布的方法

本文分析了影响边界层内大气气溶胶干沉降的各种物理因子，在忽略地表转换阻尼作用的情况下得到了一个仅依赖微气象资料的考虑层结构影响的干沉降速度表达式。同时也给出了干沉赖微气资料的依赖关系和随粒径的变化曲线，另外还在中性大气条件推导出了气溶胶粒子浓度随高度的变化函数。

A METHOD USED TO ESTIMATE DRY DEPOSITION VELOCITY AND VERTICAL DISTRIBUTION OF AEROSOL CONCENTRATION IN ATMOSPHERIC BOUNDARY LAYER

In this paper,several physical factors which influence the process of aerosol dry deposition inboundary layer are analyzed,and an expression of aerosol dry deposition velocity, which dependsonly on the micrometeorotogical condition with stratification,is also obtained when transfer re-sistance on the earth's surface is ignored.Then,the relation between dry deposition velocity anddiameter of aerosol particles,and the curve of change of dry deposition velocity with diameter ofaerosol particle sare given,Besides,the function of concentration of aerosol particles whichchanges with the height under the condition of neutral atmosphere is derived.