| 华北东部地区干旱分布特征 |
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| 引用本文： | 夏洪星.华北东部地区干旱分布特征[J].气象,1996,22(11):37-40. |
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| 作者姓名： | 夏洪星 |
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| 作者单位： | 国家气候中心 |
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| 摘 要： | 用１９５１－１９９０年降水怛资料，计算了我国华北东部地区的Ｚ指数级别值，并分析该地区内干旱发生的气候规律。结果表明，该区干旱发生频繁且严重，有明显的季节和持续性特点，年代际变化大体上有２０年振荡周期。
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| 关 键 词： | Z指数 华北 东部地区 干旱 分布特征 |
The Characteristics of Drought in the East of North China |
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| Xia Hongxing.The Characteristics of Drought in the East of North China[J].Meteorological Monthly,1996,22(11):37-40. |
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| Authors: | Xia Hongxing |
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| Abstract: | The characteritics of drought in the east of north China have been analyzed statistically with Z index by using the precipitation data from 1951 to 1990.The results show that drought occured frequently and severely in this area.The characteritics of drought are identified as seasonality and persistence,and quasi 20 years oscillation variation. |
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| Keywords: | Z index east of North China drought |
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