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中文摘要: 利用数值预报产品及能量方法分析了1995年8月21—23日鲁南和山东半岛地区大暴雨天气过程。结果表明：暴雨产生在低层高能舌、准饱和及对流不稳定的区域；500hPa正涡度舌与850hPa暖切变及地面气旋中心相配合，产生较强的上升运动，触发对流不稳定能量释放，产生大暴雨。暴雨区的水汽来源于偏南气流的输送：鲁南暴雨区的水汽来源于西南气流，而半岛地区的水汽来源于东南沿海。
中文关键词: 湿静力能量,涡度,垂直运动,大暴雨
Abstract:By use of numerical weather prediction products and the analysis method of energy,the process of a torrential rain during August 21 — 23, 1995 over Southern Shandong and Shandong Peninsula is analyzed. It is shown that heavy rain is located in the area with high energy tongue at low levels,quasi-saturation and convective instability. Due to association of the positive vorticity on 500hPa with the warm shear of wind on 850hPa and cyclone center on ground,a stronger ascending motion triggers off convective instability energy a torrental rain is then produced. The moisture in the heavy rain area is from southwesterly current and the moisture in the Shandong Peninsula is from southeast.
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引用文本：
杨晓霞,刘厚赞,张国平,1997.一次大暴雨天气过程的能量分析[J].气象,23(8):43-45.
,1997.Analysis of Energy for a Torrential Rain Process[J].Meteor Mon,23(8):43-45.
杨晓霞,刘厚赞,张国平,1997.一次大暴雨天气过程的能量分析[J].气象,23(8):43-45.
,1997.Analysis of Energy for a Torrential Rain Process[J].Meteor Mon,23(8):43-45.