| 河南省年平均气温的时空分布及变化特征 |
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| 引用本文： | 焦建丽,惠付梅.河南省年平均气温的时空分布及变化特征[J].河南气象,2007(3). |
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| 作者姓名： | 焦建丽 惠付梅 |
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| 作者单位： | 河南省气候中心 郑州450003(焦建丽)，漯河市气象局 河南漯河462300(惠付梅) |
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| 摘 要： | 采用EOF分析、气候突变分析、最大熵谱分析、倾向率等多种方法,对河南省1961-2005年的年平均气温进行时空特征分析,结果表明:河南省年平均气温空间分布由南向北递减;第一主分量代表了河南省年平均气温变化的时空特征,显示出全省气温变化具有高度的一致性;1994年为气温变化的突变点,其后气温增温明显;时间序列具有4 a、5.5 a、2.4 a的变化周期。
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| 关 键 词： | 年平均气温 EOF分析 变化趋势 气候突变 最大熵谱 |
Temporal and Spatial Distribution and Change Characteristic of Annual Mean Temperature in Henan |
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| Jiao Jianli,Hui Fumei.Temporal and Spatial Distribution and Change Characteristic of Annual Mean Temperature in Henan[J].Meteorology Journal of Henan,2007(3). |
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| Authors: | Jiao Jianli Hui Fumei |
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| Institution: | Jiao Jianli1,Hui Fumei2 |
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| Abstract: | Using EOF analysis,the climate accident analysis,the maximum entropy spectrum analysis,the tendency rate and other methods,the paper carries on the temporal and spatial characteristic analysis of the annual mean temperatures in 1961-2005 in Henan.The result indicates the spatial distribution of annual mean temperature of Henan decreases progressively from south to north.The first principal component represents the temporal and spatial characteristic of the annual mean temperature changes in Henan,which demonstrates the whole province temperature change has the high consistency.The temperature accident happened in 1994 and afterward the temperature incalescence was obvious.The time series have 4 a,5.5 a,2.4 a the periodic variation. |
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| Keywords: | annual mean temperature EOF analysis change tendency climate accident maximum entropy spectrum |
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