海洋预报2013，Vol.30Issue(4)：12-17,6.DOI:10.11737/j.issn.1003-0239.2013.04.002
北极海冰与北半球大气环流及气温的相关性分析
Relationship among Arctic sea ice, atmospheric circulation and air temperature in the Northern Hemisphere
摘要
Abstract
Based on NASA sea ice concentration data (resolution:1.0°×0.25°,time period:1979.10-2002.8),the spatial distribution and temporal coefficient of the eigenvector for the sea ice are obtained from December to February in the Bering Sea and Sea of Okhotsk by EOF method.In addition,NCEP monthly reanalysis data was used to calculate the 500hPa height,1000 hPa height,1000 hPa temperature synthetic anomaly field in winter when the first eigenvector time factor of the regional sea ice distribution exceeds +0.5 and below-0.5 using the composite analysis method.The analysis results show that the sea ice distribution in that region and the atmospheric circulation and air temperature above high-latitude area in the Northern Hemisphere have a significant relationship.Under the same mode,accordingly,the atmospheric conditions change in the opposite direction corresponding anti-phase of the sea ice distribution.关键词
海冰密集度/EOF分解/合成分析Key words
sea ice concentration/ EOF decomposition/ composite analysis分类
海洋科学引用本文复制引用
魏立新,秦听,马静..北极海冰与北半球大气环流及气温的相关性分析[J].海洋预报,2013,30(4):12-17,6.基金项目
国家自然科学基金重点项目(40930848) （40930848）
青年科学基金项目(41206186) （41206186）
