| 梅雨期武汉两类暴雨“配料”特征的对比分析 |
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| 引用本文： | 李武阶,李俊,石燕,冯光柳.梅雨期武汉两类暴雨“配料”特征的对比分析[J].湖北气象,2008,27(4):313-319. |
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| 作者姓名： | 李武阶 李俊 石燕 冯光柳 |
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| 作者单位： | 中国气象局武汉暴雨研究所,武汉430074 |
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| 基金项目： | 湖北省科技攻关项目，中国气象局武汉暴雨研究所暴雨基金 |
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| 摘 要： | 选取1998-2005年6-7月武汉市的17次暴雨过程，根据暴雨发生的机理，将武汉暴雨划分为两种主要类型，即由对流有效位能释放产生的浮力抬升引发的暴雨以及由大尺度动力强迫抬升引发的暴雨。分析表明：梅雨期武汉市65％的暴雨过程是由浮力抬升引起的；对流有效位能、K指数、可降水量、中高层平均相对湿度等物理量对武汉市梅雨期暴雨预报有很好的指示意义。通过两类暴雨发生前配料特征的对比分析，揭示了两类暴雨的温湿度条件、大气层结状况以及不稳定能量积聚等方面存在的异同点。
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| 关 键 词： | 暴雨 配料 水汽 对流有效位能 |
Contrast Analysis on Ingredients' Features Between Two Types of Heavy Rain in Wuhan During Meiyu Period |
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| LI Wu-jie,LI Jun,SHI Yan,FENG Guang-liu.Contrast Analysis on Ingredients' Features Between Two Types of Heavy Rain in Wuhan During Meiyu Period[J].Meteorology Journal of Hubei,2008,27(4):313-319. |
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| Authors: | LI Wu-jie LI Jun SHI Yan FENG Guang-liu |
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| Institution: | LI Wu-jie,LI Jun,SHI Yan,FENG Guang-liu(Institute of Heavy Rain,CMA,Wuhan 430074) |
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| Abstract: | Based on the data of 17 heavy rain events in Wuhan in June-July from 1998 to 2005,heavy rain events in Wuhan during Meiyu period are classfied as two main types according to the mechanism.The first type is caused by buoyancy ascent brought by CAPE releasing,which covers 65% of the heavy rain events in Wuhan.The second type is caused by large-scale forcing ascent.The CAPE,KI,PW and RH of middle-high level are important to the forecast of heavy rain in Wuhan during Meiyu period.Through the contrast analysis o... |
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| Keywords: | Heavy rain Ingredients Water vapour CAPE |
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