摘要
Weidentifythattheprojecteduncertaintyofthepan-Arcticsea-iceconcentration（SIC）isstronglycoupledwiththeEurasiancirculationintheborealwinter（December-March;DJFM）,basedonasingularvaluedecomposition（SVD）analysisoftheforcedresponseof11CMIP5models.Inthemodelsshowingastrongersea-icedecline,thePolarcellbecomesweakerandthereisananomalousincreaseinthesealevelpressure（SLP）along60°N,includingtheUrals-SiberiaregionandtheIcelandlowregion.ThereisanaccompanyingweakeningofboththemidlatitudewesterlywindsandtheFerrellcell,wheretheSVDsignalsarealsorelatedtoanomalousseasurfacetemperaturewarminginthemidlatitudeNorthAtlantic.IntheMediterraneanregion,theanomalouscirculationresponseshowsadecreasingSLPandincreasingprecipitation.TheanomalousSLPresponsesovertheEuro-AtlanticregionprojectontothenegativeNorthAtlanticOscillation-likepattern.Altogether,pan-ArcticSICdeclinecouldstronglyimpactthewinterEurasianclimate,butweshouldbecautiousaboutthecausalityoftheirlinkage.
出版日期
2018年01月11日（中国期刊网平台首次上网日期，不代表论文的发表时间）
