| 江苏省月平均最高、最低气温周期振动的谱特征 |
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| 引用本文： | 何卷雄,姜爱军,等.江苏省月平均最高、最低气温周期振动的谱特征[J].气象科学,2002,22(2):159-166. |
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| 作者姓名： | 何卷雄 姜爱军 |
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| 作者单位： | 1. 南京气象学院,南京,210044
2. 江苏省气象局,南京,210009 |
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| 基金项目： | 江苏自然科学基金 ( BK971 83)项目资助 |
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| 摘 要： | 本文综合运用奇异交叉谱分析等多种气候诊断方法研究江苏月平均最高、最低气温振动的准周期变化的时空分布特征。结果发现：江苏逐月最高、最低气温分布型态分别为经向型、纬向型；两者存在2至3年周期，显著耦合周期为3．5年及16．5年。本文同时讨论了奇异交叉谱分析、小波分析、最大熵谱分析、经典交叉谱分析的优缺点。
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| 关 键 词： | 最高气温 最低气温 谱特征 |
| 修稿时间： | 2001年4月27日 |
THE SPECTRUM CHARACTERS OF JIANGSU'S MONTHLY AVERAGE EXTREME HIGH AND LOW TEMPERATURE VARIATIONS |
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| He Juanxiong,Ding Yuguo,Jiang Aijun.THE SPECTRUM CHARACTERS OF JIANGSU''S MONTHLY AVERAGE EXTREME HIGH AND LOW TEMPERATURE VARIATIONS[J].Scientia Meteorologica Sinica,2002,22(2):159-166. |
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| Authors: | He Juanxiong Ding Yuguo Jiang Aijun |
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| Institution: | He Juanxiong 1 Ding Yuguo 1 Jiang Aijun 2 |
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| Abstract: | In the paper,spectrum features of the monthly average extreme high and low temperature of Jiangsu province are studied by using several spectrum analyses,such as singular spectrum analysis(SSA),singular cross spectrum analysis(SCSC),wavelet analysis(WTA) and so on.We find that the monthly average extreme high temperature of Jiangsu has a latitudinal distribution and a 4-year period,and the low has a longitudinal distribution and a three-year period.The couple periods between the high and the low are 3.5-year and 16.5-year.We also discuss these spectrum analyses. |
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| Keywords: | Extreme high temperature Extreme low temperature Spectrum characters |
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