| 全球、中国及云南近百年气温变化的层次结构和突变特征 |
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| 引用本文： | 尤卫红,段旭,邓自旺,伍从斌.全球、中国及云南近百年气温变化的层次结构和突变特征[J].热带气象学报,1998,14(2):173-180. |
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| 作者姓名： | 尤卫红 段旭 邓自旺 伍从斌 |
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| 作者单位： | [1]云南省气象台 [2]南京气象学院应用气象系 |
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| 基金项目： | 云南省科委应用基础研究基金 |
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| 摘 要： | 用文献［１］建立的自适应多分辨数据波滤器进行了全球、中国及云南近百年气温变化的层次结构和突变特征分析。结果表明：（１）全球近百年来的气温变化对于较大时间尺度的演化来说主要特征是变暖，并为３个层次：即１９１９年以前的偏冷期；１９２０－１９７８年偏暖期和１９７９年以后的更暖期。对应于这种较大时间尺度的层次演变，全球的气温变化表现出十分明显的突变特征，两上最明显增暖的突变点分别发生在１９２０年和１９７９
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| 关 键 词： | 层次结构 气候变化 气温变化 全球 中国 |
| 收稿时间： | 1996/12/19 0:00:00 |
| 修稿时间： | 1997/5/26 0:00:00 |
THE MULTIHIERARCHICAL STRUCTURE AND THE JUMPFEATURES OF CLIMATE CHANGES FOR THE GLOBE, CHINA AND YUNNAN DURING THE LAST ONE HUNDRED YEARS |
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| You Weihong,Duan Xu,Deng Ziwang and Wu Congbin.THE MULTIHIERARCHICAL STRUCTURE AND THE JUMPFEATURES OF CLIMATE CHANGES FOR THE GLOBE, CHINA AND YUNNAN DURING THE LAST ONE HUNDRED YEARS[J].Journal of Tropical Meteorology,1998,14(2):173-180. |
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| Authors: | You Weihong Duan Xu Deng Ziwang and Wu Congbin |
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| Institution: | Meteorological Observatory of Yunnan Province, Kunming, 650034;Meteorological Observatory of Yunnan Province, Kunming, 650034;Nanjing Institute of Meteorology;Computer Science Department of Yunnan University |
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| Abstract: | Using the adaptive multiresolution data filter established by paper,this paper studies the multihierarchical structure and jump features of climate changes for the Globe, China and Yunnan during the last one hundred years. The results show that (1) the main features of the climatic variations for the Globe during the last one hundred years are warming and they can be described as 3 hierarchies corresponding to the larger-scale changes. They are the cold period before 1919, the warm period from 1920 to 1978 and the warmer period after 1979. The larger-timescale's hierarchical changes obviously appear features of climate jump. The years 1920 and 1979 are the jump points of climate change. The climatic variations for the Globe during the last 100 years appear to have more multihierarchical structure and more jump features corresponding to the smaller-scale changes. The filtered data of multiresolution not only conserve hierarchical structure and jump points of the larger scale changes, but also increase the new hierarchical structure and the new jump points. (2)The surface air temperature variations for China and Yunnan province are analogous but are not all analogous to the Globe. The main contrasts are that the Globe is the weaker cold period from 1955 to 1978 and the year 1979 is the jump point of warming,while China and Yunnan province are the stronger cold period from 1955 to 1986 and the year 1987 is the jump point of warming. (3) The hierarchical structure and the jump features of surface air temperature variations for Yunnan province in 4 seasons during the last 100 years are roughly analogous but of difference. The contrasts are that the Winter and the Spring are analogous to China, but the Summer and the Autumn are analogous to the Northern Hemisphere and the Globe. |
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| Keywords: | Adaptive multiresolution data filter Multihierarchical structure Climate jump |
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