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1、RClimDex(1.0)UserManualByXuebinZhangandFengYangClimateResearchBranchEnvironmentCanadaDownsview,OntarioCanadaSeptember10,200423AcknowledgementTheRClimDexisdevelopedandmaintainedbyXuebinZhangandFengYangattheClimateResearchBranchofMeteorologicalServiceofCanada.Itsi
2、nitialdevelopmentwasfundedbytheCanadianInternationalDevelopmentAgencythroughtheCanadaChinaClimateChangeCooperation(C5)Project.LisaAlexander,FrancisZwiers,ByronGleason,DavidStephenson,AlbertKlanTank,MarkNew,LucieVincent,andTomPetersonmadeimportantcontributionstot
3、hedevelopmentandtestingofthepackage.JoseLuisSantosatCIIFENhelpedtotranslatethisdocumentintoSpanish.EarlierversionsofRClimDexhavebeenusedduringCCl/CLIVARETCCDMIworkshopsinCapeTown,SouthAfrica,May31-June4,2004,andinMaceio,Brazil,August9-14,2004.Thelecturesandatten
4、deesoftheworkshopsprovidedveryvaluablesuggestionsfortheimprovementofRClimDex.23TABLEOFCONTENTS1.Introduction2.InstallationandrunningofR2.1HowtoinstallR2.2HowtorunR3.HowtouseRClimDex3.1LoadingofRClimDex3.2Dataqualitycontrol3.3CalculationofIndices4.Knownbugs5.Bugr
5、eportAppendixA:ListofClimateIndicesAppendixB:InputDataFormatAppendixC:IndicesdefinitionsAppendixD:Thresholdandin-baseperiodtemperatureindicescalculationAppendixE:RforWindowsFAQ231.IntroductionClimDexisaMicrosoftExcelbasedprogramthatprovidesaneasy-to-usesoftwarep
6、ackageforthecalculationofindicesofclimateextremesformonitoringanddetectingclimatechange.ItwasdevelopedbyByronGleasonattheNationalClimateDataCentre(NCDC)ofNOAA,andhasbeenusedinCCl/CLIVARworkshopsonclimateindicesfromin2001.TheoriginalobjectivewastoportClimDexintoa
7、nenvironmentthatdoesnotdependonaparticularoperatingsystem.ItwasverynaturaltouseRasourplatform,sinceRisafreeandyetveryrobustandpowerfulsoftwareforstatisticalanalysisandgraphics.ItrunsunderbothWindowsandUnixenvironments.In2003itwasdiscoveredthatthemethodusedforcom
8、putingpercentile-basedtemperatureindicesinClimDexandotherprogramsresultedininhomogeneityintheindicesseries.Afixtotheproblemrequiresabootstrapprocedurethatmakesitalmos
