| 北极海冰的基本特征 |
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| 引用本文： | 方之芳.北极海冰的基本特征[J].成都信息工程学院学报,1992(2). |
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| 作者姓名： | 方之芳 |
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| 作者单位： | 成都气象学院气象系 |
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| 摘 要： | 本文应用1953～1984年的北极海冰资料,分析各区海冰的季节变化、年际变化、自相关特性及互相关特性。认为Ⅰ区海冰占有最大权重,又具有较大的方差,在全区海冰中起着重耍作用。冬季,各区海冰相互关联,其余季节,基本上相互独立。各区海冰均提供了气候“贮存”机制,一个季节的冰能影响下一个季节冰的特性;冬季的贮存能力大于夏季,春秋次之;Ⅱ区和Ⅳ区冰的持续性优于Ⅰ区 。
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| 关 键 词： | 北极海冰 年际变化 季际变化 自相关特性 互相关特性 |
THE CLIMATIC CHARACTERISTIC OF THE NORTH POLAR SEA ICE |
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| Fang Zhifang.THE CLIMATIC CHARACTERISTIC OF THE NORTH POLAR SEA ICE[J].Journal of Chengdu University of Information Technology,1992(2). |
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| Authors: | Fang Zhifang |
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| Abstract: | This paper is based on the data for the period from 1953 to 1984,which are the monthly averaged sea ice cover area in north of 50"N. The whole polar sea ice region is divided into four parts. The interseasonal variation, the interannual change, the autocorrelation and cross-correlation the sea ice regions are analyzed.
Accorking to the foregoing statistical discussion, it may be noted:
1) The sea ice cover area in region I has the greatest weighing and greater variance,so that it plays a striking role in the whole polar sea ice.
2) There exist some cross-correlatifin connection in all sea ice regions during winter, but these regions are independent during summer .
3) There exist autocorrelationship in ail sea ice regions. The sea ice cover area often effects on the area in next season,the characteristic in winter is more obvious than in summer,but it is not evidence in spring and autumn. The sea ice continual time in region I and W is longer than region I. |
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| Keywords: | Polar sea ice Interannual cliange Interseasonal variation Autocorrelationship Cross-correlation |
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