| 一次区域性大暴雨环境特征分析 |
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| 引用本文： | 柳林,李娜,常平,张国胜. 一次区域性大暴雨环境特征分析[J]. 山东气象, 2003, 23(4): 12-14 |
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| 作者姓名： | 柳林 李娜 常平 张国胜 |
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| 作者单位： | 德州市气象局,山东,德州,253009 |
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| 摘 要： | 通过对冀东南、鲁西北一次区域性大暴雨的分析表明：除有利的大尺度环流背景以外，超低空急流是大暴雨不稳定能量和水汽的主要输送者，高能区不稳定能量释放，产生大暴雨所需的强烈上升运动。暴雨落区与超低空急流前部最大风速切变区的位置密切相关。
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| 关 键 词： | 区域性大暴雨 超低空急流 不稳定能量 释放 暴雨落区 |
| 文章编号： | 1005-0582(2003)04-0012-03 |
| 修稿时间： | 2003-09-26 |
Analysis of the Environment Characteristics of a Regional Heavy Rain |
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| LIU Lin,LI Na,CHANG Ping,ZHANG Guo-sheng. Analysis of the Environment Characteristics of a Regional Heavy Rain[J]. Journal of Shandong Meteorology, 2003, 23(4): 12-14 |
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| Authors: | LIU Lin LI Na CHANG Ping ZHANG Guo-sheng |
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| Abstract: | Regional heavy rain in the southeast of Hebei province and the northwest of Shandong province is analyzed. The result shows that extra low-altitude jet flow is the main cause of instability energy and water vapour except for the favorable large scale circulation. The downburst touches off the instability energy of the supernal energy area to release, and it will cause the strong ascending sport that heavy rain needs. The heavy rainfall area relates to the shear area of speed of extra low-altitude jet flow closely. |
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| Keywords: | regional heavy rain extra low-altitude jet flow initiation of the downbrust release of instability energy |
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