| 青藏高压前部突发性局地强暴雨的初步研究 |
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| 引用本文： | 陈忠明,荣锦海.青藏高压前部突发性局地强暴雨的初步研究[J].高原气象,1992,11(1):90-95. |
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| 作者姓名： | 陈忠明 荣锦海 |
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| 作者单位： | [1]成都高原气象研究所，四川省成都市610072 [2]成都气象局 |
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| 摘 要： | 本文通过对一次500hPa青藏高压前部的突发性强暴雨天气的诊断分析，揭示了暴雨产生的环境场特征。利用带通滤波方法,分析了与暴雨天气密切相关的中尺度系统及发展机理，获得了一些对业务预报有指导意义的结果。
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| 关 键 词： | 青藏高原 暴雨 带通滤波 中尺度系统 形成机制 500hPa 诊断分析 |
THE PRELIMINARY STUDY OF FLASH HEAVY RAIN IN THE FRONT OF QINGZANG HIGH |
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| Chen Zhongming Rong Jinhai.THE PRELIMINARY STUDY OF FLASH HEAVY RAIN IN THE FRONT OF QINGZANG HIGH[J].Plateau Meteorology,1992,11(1):90-95. |
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| Authors: | Chen Zhongming Rong Jinhai |
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| Abstract: | In this paper, the diagnostic analyses on a case of flash heavy rain in front of Qingzang High are conducted. Results show:
(1) Ambient fields to generate this heavy rain are very different as compared with last research results.
(2) Using technic of band-pass filter, mesoscale system related to this heavy rain can be dissociated from baseline fields.
(3) Positive feedback process between disturbance and non-thermal wind adjustment is a mechanism of evolution of mesocale cyclone. |
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| Keywords: | Qingzang High Flash heavy rain Band-pass filter Mesoscale system |
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