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1、夏季南极威德尔海至普利茨湾之间海冰的特性研究第13卷第3期2006年5月地学前缘(中国地质大学(北京);北京大学)EarthScienceFrontiers(ChinaUniversityofGeosciences,Beijing;PekingUniversity)Vo1.13No.3May2006夏季南极威德尔海至普利茨湾之间海冰的特性研究唐述林,秦大河,任贾文,康建成1.中国科学院冰冻圈与环境联合重点实验室,甘肃兰州7300002.上海师范大学,上海200234TANGShu—lin,QINDa-he,RENJ
2、ia—wen,KANGJian—cheng1.KeylaboratoryofIceCoreandColdRegionsEnvironment,CAREERI,CAS,Lanzhou730000,China2.ShanghaiNormalUniversity,Shanghai200234,ChinaTANGShu-lin,QINDa-he,liENJia-wen,eta1.SeaicecharacteristicsbetweenMiddleWeddellSeaanderydzBay,Antarcticduringth
3、e2003Australiansllnllner.EarthScienceFrontiers,2006,13(3):213—218Abstract:TheAntarcticseaicewasinvestigatedonfiveoccasionsbetweenJanuary4andFebruary15,2003.Theinvestigationsincludedthefollowing:(1)estimationofseaicedistributionbyship-basedobservationsbe—tweenM
4、iddleWeddeUSeaandPrydzBay;(2)estimationofseaicedistributionbyaerialphotographyinthePrydzBay;(3)directmeasurementsoffasticethicknessandsnowcover,aswellasicecoresamplinginNellaFjord:(4)estimationofmeltingseaicepatternsneartheZhongShanStation;and(5)observationofs
5、eaiceearlyfreezingneartheZhongShanStation.Onaverage,seaicecovered14.4ofthestudiedarea.First—yearicewasdominant(99.7～99.8).Seaicethicknessrangedbetween15cmand150cm.Thehighestseaiceconcentration(80)wasobservedinWeddellSea.Alargeareaofopenwaterwasobservedbetween5
6、9.56Sand69.22Sand040.41Wand076.23E.TheobservedresultsvalidatetheSilviamodelofseaicedrifting.SeaicedistributionsinPrydzBayweremorevariableduetothecomplexon-shoretopography,theproximityoftheLarsemannHills,and/orthegroundedicebergs.Theaveragethicknessoflandfastic
7、einNellaFjordwas169.5cm.WindblownsnowredistributionandthedifferentradiationsplayedanimportantroleinaffectingtheicethicknessinNellaFjord.PreliminaryfreezingofseaiceneartheZhongShanStationconformedtothefirsttwophasesofthePancakeCycle.Keywords:Antarctic;seaice;We
8、ddellSea;ZhongShanStation摘要:2003年1月4日至2月15日期间,在5种不同情况下对南极海冰进行了调查研究.包括:(1)基于走航观测的威德尔海至普利茨湾之间海冰分布研究;(2)基于航空拍摄的普利茨湾海冰分布研究;(3)纳拉海峡固定冰和上浮雪厚度钻孔测量以及冰心钻取;(4)中山站附近融化冰的分布研究以及(5)中山站附近海冰早期冻结过程
