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1、2008InternationalSeminaronBusinessandInformationManagementResearchonAutomaticCompositeofMODISDataBasedonGridLingkuiMeng,JiyuanLi,LiangTaoZidanChen,DeqingChenSchoolofRemoteSensingandInformationEngineering,WaterResourcesInformationCenter,MWR,WuhanUniversity,129LuoyuRoad,Beijing1000
2、53,P.R.ChinaWuhan430079,P.R.Chinazdchen@mwr.gov.cn,chendq@mwr.gov.cnlkmeng@whu.edu.cn,lijiyuan_521@163.comtaoliang315@163.comAbstract—ModerateResolutionImagingSpectroradiometerbusinesstier,gridtierandresourcetier.Figure1givesthe(MODIS)remotesensingdataisoneofthenewgenerationdetai
3、loftheframework.satelliteremotesensinginformationsources.CompositionofResourceTier:allthenecessaryresourcesrequiredinMODISdataisinvolvedinalargenumberofcomplexgridprocess,includingdataresource,networkresourceandcalculations.Inthispaper,wepresentaplanofautomaticcomputationalresour
4、ce.compositionofMODISdatabasedonGrid.Firstofall,theGridTier:decomposetheprocessofMODISdataframeworkisgivenwhichisdesignedforautomaticcompositecomposingandthenpackagethemintoseparatesub-tasksinofMODISdatabasedonGrid.Itachievesthehighefficiencythegridcomputingenvironmentandconstitu
5、telooseofautomaticprocessthroughtaskdivision,taskscheduling,couplinggridtaskflows.distributestrategiesanddatacommunicationmode.OnthebasisofbusinesscharacteristicsofMODIScomposition,wedividethetasksandrebuildsub-tasksproperly,thentakedifferentschedulinganddistributestrategiestothe
6、gridtasksaccordingtodifferentflowsandjobs.Meanwhile,wecomparethreecommunicationmodes,andthenrealizeitintheefficientway.Finally,thepapergivesevaluationofthegridandlooksforwardtothefuturework.Keywords-Grid;MODIS;composite;automation;schedulingI.INTRODUCTIONComposedRadiometricBright
7、nessTemperature(RBT)andcomposedNormalizedDifferenceVegetationIndex(NDVI)ofMODISarecommonlyusedinanalysisofremotesensingasevaluationandindicators.Theprocessesofthesedataarecomplexwithalargeamountofcalculation.Theexistingsystemhasbeenunabletomeetthegreatreal-timedataprocessingrequi
8、rements.Underexistinghardwareresources,h
