| 中国北方地区四季的时空演变特征 |
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| 引用本文： | 严登华,耿思敏,罗先香,秦天玲.中国北方地区四季的时空演变特征[J].地理科学,2011,31(9):1105-1110. |
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| 作者姓名： | 严登华 耿思敏 罗先香 秦天玲 |
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| 作者单位： | 1. 中国水利水电科学研究院水资源所, 北京 100038;2. 中国海洋大学环境科学与工程学院, 山东 青岛 266100 |
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| 基金项目： | 国家重点基础研究发展计划(973计划)项目(2010CB951102);国家自然科学基金创新群体基金项目(50721006),国家自然科学基金项目(50779075)资助 |
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| 摘 要： | 利用中国北方地区及周边58个气象站点1960~2009年的逐日气温资料,结合气候趋势系数和GIS平台,以5 d滑动平均温度作为划分依据,对中国北方地区近50 a来四季的开始时间、长度以及积温的时空变化特征进行分析。结果表明,北方地区四季演变呈一定的径向、纬向和海陆分布规律,且由于地理隔离,存在不连续的高值或低值中心,但整体上呈现以下特征:春夏起始日期提前,秋季推迟,冬季整体变化不大;多数地区春季、秋季和冬季变短,夏季变长,严冬比例减小;多数地区春季温度降低,夏季、秋季和冬季温度升高,严冬平均温度升高。
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| 关 键 词： | 北方地区 四季演变特征 时空分布 |
| 收稿时间： | 2010-12-16 |
| 修稿时间： | 2011-02-16 |
Spatial and Temporal Variation Characteristics of the Four Seasons in the Northern China |
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| YAN Deng-Hua,GENG Si-Min,LUO Xian-Xiang,QIN Tian-Ling.Spatial and Temporal Variation Characteristics of the Four Seasons in the Northern China[J].Scientia Geographica Sinica,2011,31(9):1105-1110. |
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| Authors: | YAN Deng-Hua GENG Si-Min LUO Xian-Xiang QIN Tian-Ling |
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| Institution: | 1. Water Resources Department, China Institute of Water Resources and Hydropower Research, Beijing, 100038, China;2. Environmental Science and Engineering Department, Ocean University of China, Qingdao, Shandong, 266100, China |
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| Abstract: | The spatial and temporal variation characteristics of start date, length and accumulated temperatures of the four seasons in Northern China are analyzed based on daily temperature of 1960-2009 from 56 meteorological stations. Seasons are divided by 5 days’ moving average temperatures. Climate tendency coefficients and GIS are used to analyze seasonal variation characteristics. The results show that: springs and summers are coming earlier; autumns are coming later while the start dates of winter have little changes. In most areas, springs, autumns and winters are becoming shorter while summers are longer and the proportion of severe winters reduced. Temperatures in springs are lower while autumns, winters and severe winters are warmer, and summers are much more hot. |
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