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中文摘要: 1996年8月4—5日北京地区的暴雨是台风低压、副热带高压和切变线相互作用的结果。暴雨前存在从华中伸向华北的高能舌,北京能量激增,偏南低空急流不仅为暴雨区输送了水汽、能量,急流中的风速脉动还触发了湿有效能量的释放。
中文关键词: 台风低压,暴雨,湿有效能量,低空急流
Abstract:The torrential rain from 4 to 5 August,1996 in Beijing area is the result of interaction among typhoon low,subtropical high and shear line.Before torrential rain,the tongue of high energy stretched from Central China to North China,and the energy in Beijing area increased rapidly.In torrential rain area,not only did the southerly low level jet transport water vapour and energy to it,but also did the wind velocity fluctuation of the jet trigger the release of moist available potential energy.
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引用文本:
周晓平,伏建国,1997.9608号台风低压暴雨形势和能量场分析[J].气象,23(8):46-49.
,1997.The Circulation Pattern of 9608 Typhoon Torrential Rain and Its Energy Analysis[J].Meteor Mon,23(8):46-49.
周晓平,伏建国,1997.9608号台风低压暴雨形势和能量场分析[J].气象,23(8):46-49.
,1997.The Circulation Pattern of 9608 Typhoon Torrential Rain and Its Energy Analysis[J].Meteor Mon,23(8):46-49.