| 南极地区温度和海冰的变化特征及相互关系 |
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| 引用本文： | 卞林根,陆龙骅,贾朋群.南极地区温度和海冰的变化特征及相互关系[J].大气科学,1997,21(5):564-572. |
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| 作者姓名： | 卞林根 陆龙骅 贾朋群 |
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| 作者单位： | 中国气象科学研究院,北京 100081 |
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| 基金项目： | 本文得到国家南极八五攻关项目（85-905-05）的资助 |
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| 摘 要： | 对南极地区温度和海冰的时空变化特征及相互关系进行的初步研究结果表明:近30余年来南极地区有显著的变暖趋势，时空差异比较明显。 其中以南极半岛地区的变暖趋势最大，为整个东南极沿岸增温率的2～3倍。近20年来，整个平均的南极海冰和温度的变化趋势相反，年际变化的相关关系不显著。经过聚类分析划分出不同的气候区，能清楚地显示出某些区两者的关系。海冰与同区沿岸温度距平相关信号最强区在南大西洋至西南太平洋海域。
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| 关 键 词： | 南极 温度 海冰 时空特征 |
Characteristics of Antarctic Surface Air Temperature and Sea Ice Variations and Their Relationship |
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| Bian Lingen,Lu Longhua and Jia Pengqun.Characteristics of Antarctic Surface Air Temperature and Sea Ice Variations and Their Relationship[J].Chinese Journal of Atmospheric Sciences,1997,21(5):564-572. |
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| Authors: | Bian Lingen Lu Longhua and Jia Pengqun |
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| Abstract: | Temporal spatial characteristics of Antarctic surface air temperature and sea ice variations have been statistically analyzed Results show that, during the last 30 years there was an obvious warming trend in Antarctica, but there exists substantial difference in different sectors and different periods The most significant warming trend occurred in the Antarctic Peninsula, about 2-3 times greater than that in the whole east Antarctica In recent 20 years the correlations between Antarctic mean temperature and mean sea ice area are low and insignificant, but their linear trends are found to be opposite related in each sector, that is, sea ice extent is reduced when temperature is high The different climate sectors defined by cluster analysis clearly show a close relationship between the two parameters on the inter-seasonal time scale The most sensitive correlation sectors found are from the southern Atlantic to Southwest Pacific ocean |
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| Keywords: | Antarctica temperature sea ice temporal-spatial characteristic |
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