摘要
综合运用诊断分析和数值模拟的方法,对1991年7月4~7日的暴雨个例进行了研究,提出由凝结加热作用导致梅雨锋α中尺度气旋发展与降水增强之间的正反馈机制概念模式,即凝结加热产生负变压,辐散风动能促进中气旋发展,同时上升运动得到增强,降水增幅。
Diagnostic weather analysis and numerical simulation are both used to establish a positive feedback mechanism conceptual model for the growing of meso-α scale cyclone on the Meiyu front. The model is as follows: condensational heating generates negative allobar, divergence wind kinetic-energy promotes the meso-α scale cyclone growing, and in the meantime, updraft movement is also reinforced and the precipitation thus increases.
出处
《大气科学》
CSCD
北大核心
1998年第5期763-770,共8页
Chinese Journal of Atmospheric Sciences
基金
国家自然科学基金