| 1990 年京津冀三次暴雨的分析 |
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| 引用本文： | 刘延英,许晨海.1990 年京津冀三次暴雨的分析[J].应用气象学报,1993,4(3):349-355. |
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| 作者姓名： | 刘延英 许晨海 |
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| 作者单位： | 1.中国气象科学研究院 北京100081
(刘延英，许晨海)，中国气象科学研究院 北京100081(吴宝俊) |
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| 基金项目： | 京津冀强风暴实验室提供资助 |
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| 摘 要： | 本文分析了1990年京津冀地区三次暴雨过程，结果发现:（1）三次暴雨是属于相伴有冷锋的高空槽影响的暴雨；（2）暴雨开始前约10小时雨区的西南方存在湿有效能量高能舌，高能舌的西方和北方有能量和水汽的积聚；（3）对流层低层的锋生和地形对气流的抬升作用是触发暴雨开始的直接原因。
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| 关 键 词： | 暴雨 高空槽 湿有效能量 |
An Analysis of Three Cases of Heavy Rains in Jing-Jin-Ji Area of China in 1990 |
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| Liu Yanying Xu Chenhai Wu Baojun.An Analysis of Three Cases of Heavy Rains in Jing-Jin-Ji Area of China in 1990[J].Quarterly Journal of Applied Meteorology,1993,4(3):349-355. |
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| Authors: | Liu Yanying Xu Chenhai Wu Baojun |
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| Affiliation: | 1.(Chinese Academy of Meteorological Sciences, Beijing 100081) |
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| Abstract: | In this article,three cases of heavy rains which occurred in the Jing-Jin-Ji area ofChina have been analysed.The results show:1.These heavy rains are affected by the up-per trough with cold front.2.Ten hours before the rains there exist high energy tonguesof moist available energy in the southwest of the rain area and the convergence of energyand vapor in the north and west of the high tongues.3.The frontgenesis of the lowertroposphere and the lifting role of the mountain are the direct triggering mechanisms. |
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| Keywords: | Heavy rain Upper trough Moist available energy |
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