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１０年变化周期。
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.
出处
《气候与环境研究》
CSCD
2000年第3期249-258,共10页
Climatic and Environmental Research
基金
国家九五"重中之重项目!96-908
国家自然科学基金
北极海冰变化对东亚季风的影响研究"!(No.49905003)
