中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Dominant modes of geopotential height in the northern hemisphere in summer on interdecadal timescales

文献类型:CNKI期刊论文

作者Yang YX(杨宇星); Huang F(黄菲); Wang H(王宏)
发表日期2013-09-15
出处Chinese Journal of Oceanology and Limnology
关键词dominant mode interdecadal variation global warming Arctic Oscillation
英文摘要Empirical orthogonal function(EOF) analysis is performed on the field of the northern hemisphere geopotential height at 200-hPa using a 54-year(1958-2011) record of summer data on an interdecadal time scale.The first dominant mode,which shows smooth semi-hemispheric variation with maximum action centers in the western hemisphere in the mid-latitudes over the eastern Pacific,North America,and the North Atlantic,is related to global warming.The second mode,which has a pronounced tropical-extratropical alternating pattern with active centers located over the eastern hemisphere from Western Europe across East Asia to the western Pacific,has a close relationship with the Arctic Oscillation.Further analysis results indicate that the two dominant modes show good correlation with the Arctic sea ice concentration(SIC),with correlation coefficients between these two modes and the first two EOF modes of the Arctic SIC reaching 0.88 and 0.86,respectively.
文献子类CNKI期刊论文
资助机构Supported by the National Basic Research Program of China(973Program)(No.2010CB951403,2012CB955604,2012CB417402,and 2010CB950402) ; the National Natural Science Foundation of China(No.41106018)
v.31期:05页:188-196
语种英文;
分类号P461
ISSN号0254-4059
源URL[http://ir.qdio.ac.cn/handle/337002/190742]  
专题中国科学院海洋研究所
作者单位1.InstituteofOceanology,ChineseAcademyofScience
2.PhysicalOceanographyLaboratoryandKeyLaboratoryofOcean-AtmosphereInteractionandClimateinUniversitiesofShandong,OceanUniversityofChina
推荐引用方式
GB/T 7714
Yang YX,Huang F,Wang H. Dominant modes of geopotential height in the northern hemisphere in summer on interdecadal timescales. 2013.

入库方式: OAI收割

来源:海洋研究所

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