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1、济南大学毕业设计外文资料翻译毕业设计外文资料翻译题目陆面过程模式CLM的稳定同位素的季节变化仿真学院资源与环境学院专业资源环境与城乡规划管理班级资源0702班学生包芳学号指导教师王永森二〇一一年三月二十五日-21-济南大学毕业设计外文资料翻译-21-济南大学毕业设计外文资料翻译SimulationsofseasonalvariationsofstablewaterisotopesinlandsurfaceprocessmodelCLMZHANGXinPing1†,WANGXiaoYun2,YANGZongLiang3,NIUGuoYue3&XieZiChu11CollegeofReso
2、urcesandEnvironmentalSciences,HunanNormalUniversity,Changsha,China;2QingdaoMeteorologicalBureau,Qingdao,China;3DepartmentofGeologicalSciences,theUniversityofTexasatAustin,Texas78721-0254,USAAbstract:Inthisstudy,wesimulatedandanalyzedthemonthlyvariationsofstablewaterisotopesindifferentreservoirsa
3、tManus,Brazil,usingtheCommunityLandModel(CLM)thatincorporatesstableisotopiceffectsasadiagnostictoolforunderstandingstablewaterisotopicprocesses,fillingtheobservationaldatagapsandpredictinghydrometeorologicalprocesses.Thesimulationresultsshowthattheδ18Ovaluesinprecipitation,vaporandsurfacerunoffh
4、avedistinctseasonalitywiththemarkednegativecorrelationswithcorrespondingwateramount.ComparedwiththesurveyresultsbytheInternationalAtomicEnergyAgency(IAEA)inco-operationwiththeWorldMeteorologicalOrganization(WMO),thesimulationsbyCLMrevealthesimilartemporaldistributionsoftheδ18Oinprecipitation.Mor
5、eover,thesimulatedamounteffectbetweenmonthlyδ18Oandmonthlyprecipitationamount,andMWL(meteoricwaterline)areallclosetothemeasuredvalues.However,thesimulatedseasonaldifferenceintheδ18Oinprecipitationisdistinctlysmallerthanobservedone,andthesimulatedtemporaldistributionoftheδ18Oinprecipitationdispla
6、ystheidealbimodalseasonalityratherthantheobservedsingleone.Thesemismatchesarepossiblyrelatedtothesimulationcapacityandtheveracityinforcingdata.Keyword:stablewaterisotope,CLM,simulation,amounteffect,seasonalvariationThemodelingofthelandsurfaceandsoilmoistureisincreasinglyseenasanimportantcomponen
7、tinunderstandinghydrologicalcycles.Stablewaterisotopes,forexample18OandD,aresuperlativetracersforthehydrologicalcyclesbecausetheirabundanceinwaterreflectstheaccumulatedrecordofphysicalphasechange.Usingthefeaturesofstableisot
