| 一次三峡大暴雨的地转螺旋度分析 |
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| 引用本文： | 吴宝俊,于永安.一次三峡大暴雨的地转螺旋度分析[J].气象科学,1996,16(2):142-150. |
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| 作者姓名： | 吴宝俊 于永安 |
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| 作者单位： | [1]中国气象科学研究院 [2]葛洲坝水力发电厂气象台 |
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| 基金项目： | “八五”国家攻关项目!“85─906─08”，葛洲坝水力发电厂资助 |
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| 摘 要： | 本文引入了地转螺旋度概念，并将其用于一次大暴雨的分析，结果发现；在地转螺旋度垂直剖面图上，在雨区上空３００ｈＰａ附近有一个负的极小值中心，在５００ｈＰａ有一个正的极大值中心，该分布形成原因可用图６解释。
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| 关 键 词： | 螺旋度 地转螺旋度 暴雨 三峡地区 |
Application of the Geostrophic Helicity to Analysis of A Heavy Rainfall Event over the Gorges of the Yangtse River |
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| Wu Baojun,Xu Chenhai,Liu Yanying,Fan Genyan.Application of the Geostrophic Helicity to Analysis of A Heavy Rainfall Event over the Gorges of the Yangtse River[J].Scientia Meteorologica Sinica,1996,16(2):142-150. |
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| Authors: | Wu Baojun Xu Chenhai Liu Yanying Fan Genyan |
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| Abstract: | In this article,the geostrophic helicity had been introduced and applied to analysis of a heavy rainfall event. The results showed that on vertical section chart there was a negative minimum value centre near 300 hPa and there was a positive maximum value centre near 500hPa over the heavy rainfall area. The figure 6 can be used to explain why the above-mentioned hg distribution pattern is formed. |
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| Keywords: | Helicity Geostrophic helicity Gorges of the Yangtse River Heavy rainfall event |
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