三种含 AgI 的气溶胶在水面欠饱和条件下成冰性能的实验研究  

A LABORATORY STUDY ON THE NUCLEATING PROPERTIES OF THREE AgI—TYPE AEROSOLS UNDER WATER SUB—SATURATION

作　　者：酆大雄 陈汝珍 蒋耿旺 黄庚 

机构地区：[1]国家气象局气象科学研究院

出　　处：《应用气象学报》1990年第1期57-62,共6页Journal of Applied Meteorological Science

摘　　要：在水面欠饱和、冰面过饱和条件下,对三种含碘化银的冰核气溶胶的成冰性能进行了研究。实验是在2m^3等温云室中进行的。在无云条件下排除了接触核化的可能性,同时把冰晶中心有无冻滴作为辨认凝结冻结核化与凝华核化的标志。从实验得到的一些定性结果表明,这三种碘化银气溶胶在成冰性能方面存在着明显的差异。Three kinds of AgI—type aerosols have been tested in a 2m^3isothermal cloud chamber underwater sub—saturation conditions to study their ice nucleating properties.The possibility for con-tact nucleation is excluded in such a cloudless condition and whether there is the frozen droplet ornot in the ice crystal center is taken as a sign to tell condensation freezing nucleation from depo-sition nucleation.The qualitative results obtained show that there are the obvious differences ofthree kinds of AgI-type aerosols in their ice nucleating properties.

关 键 词：云室 凝华核 AGI 气溶胶粒子 核化 冰核 定性结果 接触冻结 应用气象学 丙酮溶液 

分 类 号：P4[天文地球—大气科学及气象学]