| 一次梅雨锋气旋波雷暴天气生成的剖析 |
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| 引用本文： | 魏绍远,林锡怀.一次梅雨锋气旋波雷暴天气生成的剖析[J].气象科学,1995,15(3):209-218. |
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| 作者姓名： | 魏绍远 林锡怀 |
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| 作者单位： | 空军气象学院 |
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| 摘 要： | 本文利用常规观测资料，并采用滤波方法，仔细地分析了１９８０年６月２４日一次江淮气旋中发生物强对流性质的暴雨天气。分析表明，强对流性质的暴雨天气之所发发生，是由于低层的西南风急流轴与Ｔｄ的湿舌轴重合，极有利于水汽的不断输送，８５０－７００ｈＰａ之间较长时间对流不稳定居存在，雷暴区又正好与Ｓ〈０的对称不稳定区重合，对称不稳定产生了倾斜对流，使雷暴天气得以维持；
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| 关 键 词： | 梅雨锋 气旋波 雷暴 |
ANALYSIS OF THE THUNDERSTORM FORMATION ON A MEI-YU FRONT CYCLONIC WAVE |
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| Wei Shaoyuan,Lin Xihuai.ANALYSIS OF THE THUNDERSTORM FORMATION ON A MEI-YU FRONT CYCLONIC WAVE[J].Scientia Meteorologica Sinica,1995,15(3):209-218. |
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| Authors: | Wei Shaoyuan Lin Xihuai |
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| Abstract: | Using and filtering the routine meteorological data, the features of convective storm rainfall occurred in a Jiang-Huai cyclonic during 24, June 1980 are analysed. The results showed that there are many conditions for development of the rainstorm:1) The coincidences of the low level jet stream axis and the moisture tongue are adventageous to continuously transporting of the vapour.2) There are long time convective instability between 850 and 700hPa.3) Thunderstorm and negative symmetry instability area are coincided. The symmetry instability induced tilting convection.4) The thunderstorm area is located not only between upper jet stream(300hPa) and low level jet(850hPa), but between easterly jet stream and westerly jet stream in 850hPa.5)There are mesoscale low level convergence and high level divergence in the thunderstorm area.In short, the larger and mesoscale, ascending motion and vapour transport as well as instability are favourable for thunderstorm development. |
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| Keywords: | Meiyu Ffront Cyclonic Wave Thunderstorm |
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