摘要
本文利用一个六层原始方程模式对五例爆发性气旋的发展进行了数值试验，试验结果表明：斜压强迫是气旋爆发性发展的基本因子，而潜热释放的重要性则有较大差异。潜热释放的作用主要集中在两个方面：一是对低层的直接增暖，加强了上升运动；二是对局地斜压性的加强，促进了锋面、槽脊系统的发展，而这两者均有利于气旋的发展。
A sir-layer primitive equation model in σ-coordinate system is adopted in this article to carry out numerical experments of the development of fiVe explosive cyclone cases,the results illustrate that the baroclinic forcing is a basic factor in the cyclone's explosive development,however, the importance of the latent heat is very different. The effects of the latent heatmostly appear in two ways. On the one hand, it directly heats the low atmosphere,strensthens the ascending motion. On the other hand,it enhances the iceal barocline of the middle and low level,helps the development of the floutal surface and the trough and ridge system over the cyclone which are advantageous to the development of cyclone.
出处
《气象科学》
CSCD
北大核心
1999年第3期259-269,共11页
Journal of the Meteorological Sciences
关键词
爆发性气旋
斜压强迫
潜热释放
数值试验
气旋
Explosive cyclone
Baroclinic forcing
Latent heat
Numerical experiment
