摘要
在有限区域模式ＭＭ４的基础上，发展了一个沙尘暴传输扩散模式，对模式中的源汇的处理作了精细考虑。用１９９１年４月３０日的实况资料检验了模式的性能，结果表明。
A model has been developed on the basis of the mesoscale dynamic model (MM4) coupling with a set of mass conservation equations of the particles to simulate the dust events of the East Asia. In the model, the airborne particles are categorized into several bins in size. The source and sink of dust are considered. Dealing with the source, four factors are include: origin mechanism, scope of source, estimation of concentration and size distribution of concentration. Dry deposition and gravity precipitation of the particles are considered in the sink term. We examine the function of the model with the historical data, and the simulation results prove the capability of this model to simulate dust storm.
出处
《北京大学学报（自然科学版）》
CAS
CSCD
北大核心
1996年第3期384-392,共9页
Acta Scientiarum Naturalium Universitatis Pekinensis
基金
国家教委博士点基金
