气象与环境学报2012，Vol.28Issue(2)：91-96,6.
雾天气向霾天气转化时气溶胶颗粒物的动力学特性
Dynamical characteristics of aerosol particles from fog to haze weather
摘要
Abstract
Multi-effective dynamics models of aerosol particles in the fog layer were established and developed to depict the natural phenomenon for conversion from fog to haze weather.Based on the population balance equation（PBE） of discrete system and the Multi-Monte Carlo（MMC） method,the evolution processes of average aerosol particle sizes and particle numbers with the time were simulated numerically for three stages of fog,which involve the formation of fog（dominated by aerosols dynamical effects of coagulation,condensation and nucleation）,the development of fog（dominated by aerosols dynamical effects of coagulation,breakage,deposition and nucleation） and the dissipation of fog（dominated by aerosols dynamical effects of breakage,evaporation and deposition）.The results indicated that the initial volume of aerosol particle is one.The numbers of particles with 0.0156 of volume-size are increased quickly when the life cycle of fog comes into the dissipation stage.At the time of 1000 s,the numbers of smaller-size particles are 8.12 times higher than those of initial time.The above results reveal the process and physical mechanism of fog conversion into haze weather in nature.关键词
雾霾天气/气溶胶/颗粒群平衡模拟/动力学特性/多重MonteCarlo算法Key words
Fog-haze weather/Aerosol/Particle population balance simulation/Dynamical characteristic/Multi-Monte Carlo method分类
天文与地球科学引用本文复制引用
丁珏,刘义,李家骅,张宝亮,王庆涛..雾天气向霾天气转化时气溶胶颗粒物的动力学特性[J].气象与环境学报,2012,28(2):91-96,6.基金项目
国家自然科学基金 （）
上海市教委创新基金 （）
上海基础研究基金 （）
上海高校创新团队共同资助 （）
