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1、PUBLICATIONSWaterResourcesResearchRESEARCHARTICLEGlobalsensitivityanalysisoftheradiativetransfermodel10.1002/2014WR016534MaheshwariNeelam1andBinayakP.Mohanty1KeyPoints:1EnergyrichenvironmentsaremoreDepartmentofBiologicalandAgriculturalEngineering,TexasA&MUniversity,CollegeStation,Texas,U
2、SApronetoparameterinteractionsFixedlook-uptableforparameterswillunderminethesoilmoistureAbstractWiththerecentlylaunchedSoilMoistureActivePassive(SMAP)mission,itisveryimportanttoaccuracyhaveacompleteunderstandingoftheradiativetransfermodelforbettersoilmoistureretrievalsandtoBrightnesstem
3、peratureismoresensitivitytoroughnessparametersdirectfutureresearchandfieldcampaignsinareasofnecessity.Becausenaturalsystemsshowgreatvari-inwetsoilsabilityandcomplexitywithrespecttosoil,landcover,topography,precipitation,thereexistlargeuncertain-tiesandheterogeneitiesinmodelinputfactors.Int
4、hispaper,weexplorethepossibilityofusingglobalCorrespondenceto:sensitivityanalysis(GSA)techniquetostudytheinfluenceofheterogeneityanduncertaintiesinmodelB.P.Mohanty,inputsonzeroorderradiativetransfer(ZRT)modelandtoquantifyinteractionsbetweenparameters.GSAbmohanty@tamu.edutechniqueisbasedond
5、ecompositionofvarianceandcanhandlenonlinearandnonmonotonicfunctions.Wedirectouranalysestowardgrowingagriculturalfieldsofcornandsoybeanintwodifferentregions,Citation:Neelam,M.,andB.P.Mohanty(2015),Iowa,USA(SMEX02)andWinnipeg,Canada(SMAPVEX12).Wenoticedthat,thereexistsaspatio-temporalGlobals
6、ensitivityanalysisofthevariationinparameterinteractionsunderdifferentsoilmoistureandvegetationconditions.RadiativeTrans-radiativetransfermodel,WaterResour.ferModel(RTM)behavesmorenon-linearlyinSMEX02andlinearlyinSMAPVEX12,withaverageparameterRes.,51,doi:10.1002/2014WR016534.interactionsof
7、14%inSMEX02and5%inSMAPVEX12.Also,parameterinteractionsincreasedwithvegeta-tionwatercontent(VWC)androughnessconditions.Interestingly,soilmoistureshowsanexponentiallyReceived9OCT2014Accepted2MAR2015decreasingsensitivityfunctionwhereasparameterssuchasrootmeansquareheig
