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| 重庆市气温及降水变化的奇异谱分析 | |
| 引用本文： | 李永华,刘德,朱业玉,高阳华,毛文书.重庆市气温及降水变化的奇异谱分析[J].高原气象,2005,24(5):798-804. |
| 作者姓名： | 李永华 刘德 朱业玉 高阳华 毛文书 |
| 作者单位： | 1. 重庆市气象科学研究所,重庆,401147 2. 河南省气象台,河南,郑州,450003 3. 四川省绵阳市气象局,四川,绵阳,621000 |
| 基金项目： | 重庆市科技合作项目“重庆市冷暖旱涝灾害变化及其影响研究（2004-8770）”资助 |
| 摘 要： | 采用奇异谱分析（SSA）方法对重庆市长年代逐月地面气温及降水资料进行了分析，结果表明，重庆市气温序列存在准2年、准4年周期及16个月的年际振荡特征；而降水序列有准4年、准2年周期及8～16个月的年、季振荡特征。 |
| 关 键 词： | 奇异谱分析 变化周期 气候演变特征 |
| 文章编号： | 1000-0534（2005）05-0798-07 |
| 收稿时间： | 2003-12-19 |
| 修稿时间： | 2003-12-192004-04-06 |
Singular Spectrum Analysis of Surface Air Temperature and Precipitation Series in Chongqing |
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| LI Yong-hua,LIU De,ZHU Ye-yu,GAO Yang-hua,MAO Wen-shu.Singular Spectrum Analysis of Surface Air Temperature and Precipitation Series in Chongqing[J].Plateau Meteorology,2005,24(5):798-804. | |
| Authors: | LI Yong-hua LIU De ZHU Ye-yu GAO Yang-hua MAO Wen-shu |
| Institution: | 1. Chongqing Institute of Meteorological Sciences, Chongqing 401147, China; 2. Henan Meteorological Office, Zhengzhou 450003, China ; 3. Mianyang Meteorology Office, Sichuan Province, Mianyang 621000, China |
| Abstract: | Using the singular spectrum analysis, the climatic feature of moth-to-moth surface air temperature and precipitation in Chongqing have been analyzed during the past years. The results show that the quasi-periods of air temperature series are main about 2 and 4 years and 16 months. And the quasi-periods of precipitation series are main about 4 and 2 years and 8-16 months. The variation tendency of air temperature is descendant. It is opposite to the tendency of the variations of temperature of global, Northern Hemisphere and China. The change of precipitation is more complex than that of temperature, and the period is not more obvious than the former. |
| Keywords: | Singular spectrum analysis Change period Climatic change feature |
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