| 冬春季节北极海冰的年际和年代际变化 |
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| 引用本文： | 武炳义,高登义,黄荣辉.冬春季节北极海冰的年际和年代际变化[J].气候与环境研究,2000,5(3):249-258. |
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| 作者姓名： | 武炳义 高登义 黄荣辉 |
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| 作者单位： | 中国科学院大气物理研究所,北京 100080 |
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| 基金项目： | 国家"九五”重中之重项目96-908以及国家自然科学基金资助项目"北极海冰变化对东亚季风的影响研究”(No.49905003) |
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| 摘 要： | 利用1953～1990年海冰密集度资料,研究了冬、春季节北极海冰的时空变化特征.结果表明:冬,春季节海冰变率大的海区主要有巴伦支海、格陵兰海、巴芬湾、戴维斯海峡以及白令海;在巴芬湾、戴维斯海峡和白令海海区,冬季海冰变率比春季的大;冬、春季节喀拉海、巴伦支海海冰面积均与春季白令海海冰面积呈反向变化关系,与巴芬湾、戴维斯海峡海冰面积也存在相反的变化趋势.分析还表明:北极海冰面积还表现出年代际时间尺度变化,尤其在冬季.春季格陵兰海海冰明显存在12年变化周期,而在冬、春季节,喀拉海、巴伦支海海冰存在l0年变化周期.
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| 关 键 词： | 北极海冰 面积指数 年际变化 年代际变化 |
| 修稿时间： | 1998年12月11 |
Interannual and Interdecadal Variations inArctic Sea-Ice in Spring and Winter |
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| Wu Bingyi,Gao Dengyi and Huang Ronghui.Interannual and Interdecadal Variations inArctic Sea-Ice in Spring and Winter[J].Climatic and Environmental Research,2000,5(3):249-258. |
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| Authors: | Wu Bingyi Gao Dengyi and Huang Ronghui |
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| Abstract: | By using sea-ice concentration data, the temporal and spatial variations in Arctic sea-ice in spring and winter have been studied. The results indicate that in spring and winter, sea-ice variability are predominant in the following sea regions: the Kara and the Barents Seas, the Greenland Sea, the Baffin Bay and Davis Strait, the Bering Sea; and sea-ice variability in winter is greater than that in spring in the Baffin Bay, Davis Strait and the Bering Sea, spring and winter sea-ice area variations in the Kara and the Barents Seas are anti-phase with spring sea-ice variations in the Bering Sea. The results also suggest that Arctic sea-ice area variations exhibit decadal time-scale variation, especially in winter. |
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| Keywords: | Arctic sea-ice area index interannual variation interdecadal variation |
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