2004年7月广西一次大范围暴雨的诊断分析

Diagnoses of the Heavy Rain during July 2004 Guangxi

通过对2004年7月18～21日广西大范围的特大暴雨天气过程期间的环流形势场,以及与强降水有关的物理量场的变化分析,探讨了在本次强降水过程中势力相当的副热带高压与南亚高压"两脊一槽"的环流形势下,低空强劲的暖湿急流轴左侧强降水天气发生发展的环境条件。

The relevant changes of physical variable fields and the general circulation of the atmosphere are analyzed during the Heavy rain process over GuangXi 18-21July 2004, it is discussed the circumstance condition of the heavy rain occuring in the left side of the low-level jet resulted from the much strong tropic high as the South Asia high.