【摘要】 通过江淮地区一次梅雨期暴雨的诊断分析,探讨了梅雨锋暴雨的一种可能机制。指出条件性对称不稳定或等M面上的位势不稳定、锋生次级环流以及次天气尺度气旋的发展是形成暴雨的重要因子。更多还原

【Abstract】 Based on the diagnostic analysis of a raingush event in the Meiyu period over the Changjiang-Huaihe basin, a study is conducted of possible mechanisms responsible for the formation of Meiyu front torrential rain, indicating that it occurs under the conditions of potential stability or neutral stratification and the mechanics causing convection may be either due to conditionally symmetric instability or to potential instability on the equi-M surface. Further, Frontogenetical secondary circulation and sub-synoptic cyclone are the important factors for the heavy rain as well.更多还原