| 北半球30百帕月平均高度,温度场典型特征的结构和演变 |
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| 引用本文： | 葛玲,章基嘉.北半球30百帕月平均高度,温度场典型特征的结构和演变[J].南京气象学院学报,1991,14(2):160-169. |
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| 作者姓名： | 葛玲 章基嘉 |
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| 作者单位： | 南京气象学院气象学系
(葛玲)，国家气象局
(章基嘉)，四川省气象台(李川) |
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| 基金项目： | 《长期天气预报理论、方法和资料库建立的研究》项目 |
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| 摘 要： |
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| 关 键 词： | 北半球 平流层 平均高度 温度场 |
STRUCTURE AND EVOLUTION OF THE CANONICAL CHARACTERISTICS OF THE NORTHERN 30 hPa MEAN MONTHLY HEIGHT AND TEMPERATURE FIELDS |
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| Ge Ling,Zhang Jijia,Li Chuan.STRUCTURE AND EVOLUTION OF THE CANONICAL CHARACTERISTICS OF THE NORTHERN 30 hPa MEAN MONTHLY HEIGHT AND TEMPERATURE FIELDS[J].Journal of Nanjing Institute of Meteorology,1991,14(2):160-169. |
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| Authors: | Ge Ling Zhang Jijia Li Chuan |
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| Institution: | Ge Ling;Zhang Jijia;Li Chuan Department of Meteorology State Meteorological Administration Meteorological Observatory of Sichuan Province |
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| Abstract: | By the extended empirical orthogonal function (EEOF)method the 30 hPa mean monthly height and temperature fields areexpanded, yielding the first four eigenvector fields as well as theirvariance eontributions and structural characteristics. The circulationregimes typical of the eigenvector fields in winter and summer halfyears are described.At last periodicity analysis is made for time coeffi-cients by the maximum entropy spectrum method and the major periodsfor the change of the canonical circulation intensity with time are thus revealed. |
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| Keywords: | Stratosphere geopotential height field temperature field extended empirical orthogonal function (EEOF) maximum entropy spectrum |
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