| 河南夜间多暴雨及其成因 |
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| 引用本文： | 林敬凡.河南夜间多暴雨及其成因[J].气象,1993,19(12):36-40. |
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| 作者姓名： | 林敬凡 |
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| 作者单位： | 河南省气象科学研究所 郑州 |
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| 摘 要： | 统计分析了大量的暴雨资料发现；河南省夜间多暴雨，主要表现在暴雨次数和雨量夜间比白天均多２１．６％，暴雨地理分布夜间比白范围大８６．６％。由于暴雨等级不同，其降水集中时段出现时间也不一样：一般暴雨多出现在下半夜（最高峰点出现在４－５时），大暴雨和物质特大暴雨多出现在上半夜（最高峰点分别出现在０２时和２１－２２时）。物理成因分析表明：热力、动力和地形因子可能是河南省夜间多暴雨的直接成因。
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| 关 键 词： | 夜间 暴雨 成因 河南 |
More Nocturnal Heavy Rains in Henan Province and Its Causes |
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| Lin Jingfan Henan Meteorological Institute,Zhengzhou.More Nocturnal Heavy Rains in Henan Province and Its Causes[J].Meteorological Monthly,1993,19(12):36-40. |
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| Authors: | Lin Jingfan Henan Meteorological Institute Zhengzhou |
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| Institution: | Lin Jingfan Henan Meteorological Institute,Zhengzhou 450003 |
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| Abstract: | Statistical analysis shows that the frequency and fall of nocturnal heavy rains in Henan Province are both 21.6% more than that of the daytime ones,and the area of nocturnal heavy rainfall is 86. 6% larger than that of the daytime ones. The analysis also shows that much nocturnal rains would relate to thermodynamic ,dynamic and topographic factors. |
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| Keywords: | nocturnal heavy rain contributing factors |
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