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1、第33卷第2期大气科学学报Vo.l33No.22010年4月TransactionsofAtmosphericSciencesApr.2010姚洁,陈海山,朱伟军.北半球陆面过程对全球变暖响应特征的初步分析[J].大气科学学报,2010,33(2):220-226.YaoJie,ChenHa-ishan,ZhuWe-ijun.PreliminaryanalysisonresponsefeaturesoflandsurfaceprocessesovertheNorthernHemispheretoglobalwarming[J].TransAtm
2、osSc,i2010,33(2):220-226.北半球陆面过程对全球变暖响应特征的初步分析1,211姚洁,陈海山,朱伟军(1.南京信息工程大学气象灾害省部共建教育部重点实验室,江苏南京210044;2.山西省气象局科技服务中心,山西太原030002)摘要:利用NCAR气候系统模式CCSM310IPCCAR420世纪气候(20C3M)和21世纪SRESA1B排放情景下的模拟结果,着重分析了未来北半球陆面情况对全球变暖的总体响应特征。对比分析模式对20世纪和21世纪SRESA1B情景下的模拟结果表明:北半球陆面的水、热过程在全球变暖背景下将发生显
3、著的变化。伴随全球地面温度的持续升高,北半球陆面的净辐射通量、感热通量和潜热通量均表现出不同程度的上升趋势,其中潜热通量的增幅明显高于感热通量;伴随着全球变暖,地表的水循环也发生了明显的变化,具体表现为北半球降水持续增多,陆面蒸发明显增加,地表径流也呈现出总体增加的趋势,但土壤含水量则表现出减少的趋势。关键词:陆面过程;水热响应;全球变暖中图分类号:P461文献标识码:A文章编号:1674-7097(2010)02-0220-07PreliminaryAnalysisonResponseFeaturesofLandSurfaceProcesse
4、sovertheNorthernHemispheretoGlobalWarming1,211YAOJie,CHENHa-ishan,ZHUWe-ijun(1.KeyLaboratoryofMeteorologicalDisasterofMinistryofEducation,NUIST,Nanjing210044,China;2.ShanxiServiceCentreofMeteorologicalScienceandTechnology,Taiyuan030002,China)Abstract:Analyzedherearethemodelr
5、esultsoftwogroupexperimentsfromNCARCCSM310IPCCAR4simulations:CCSM310climateofthe20thcenturyrun(20C3M)andCCSM310SRESA1B21stcenturyrun.Bycomparingwith20C3Mresults,thedifferencesgivenbySRESA1Bscenario21stcenturyrunareinvestigatedtodisclosethepossiblechangesinthermalandhydrologi
6、calfeaturesoflandsurfaceprocessesovertheNorthernHemisphereinducedbyglobalwarming.Theresultsshowthatthegroundtemperatureincreasesignificantlyunderglobalwarming.Increasingtrendsarealsofoundinthesurfacenetradiationflux,sensibleheatfluxandlatentheatflux.Theincreaseinlatentheatfl
7、uxismoresignificantthanthatinthesensibleheatflux.Thehydrologicalcyclealsoexhibtssignificantresponsetoglobalwarming.Associa-tedwithglobalwarming,landprecipitation,evaporationandrunoffincreaseevidently,butthesoilwatercontentdecreasesonthewhole.Keywords:landsurfaceprocesses;the
8、rmalandhydrologicalresponse;globalwarming国政府和科学家的关注,政府间气候变化专门委员0引言[1-3]会(IP
