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1、Estimationandanalysisoflandsurfacewaterandheatfluxesinmountain-plainareabasedonremotesensingandDEMab*acdHequnYang,YongLiu,YinmingYang,CongZhangacShanghaiMeteorologicalBureauKeyLaboratoryofWesternEnvironment(MinistryofShanghai,PR.China,201100Education),Lanzho
2、uUniversityE-mail:hequn_yang@163.comLanzhou,PR.China,730000bdInternationalInstituteforEarthSystemScience,ShanghaiJiaoTongUniversityNanjingUniversityShanghai,PR.China,200240Nanjing,PR.China,210093Abstract—Theincomeandexpensesstatusofwateralongwithutilityandli
3、mitationsofSEBS’sapplicabilitytowatershedswithheatonlandsurfacedeterminetheformandevolvementofvariouslandcovertypesandcomplexterrainwereanalyzed.environmenttoagreatextent.ThispaperfocusonthetopicofestimationandanalysisoflandsurfacewaterandheatfluxesinKeyword
4、s-Landsurfacewaterandheatfluxes,Remotesensing,mountain-plainareabasedonremotesensingandDEM,selectingDEM,SEBS(SurfaceEnergyBalanceSystem),VegetationSunanMountainandZhangyePlaininChinaasacasestudy.Allcoverage,Terraincomplexitythebiophysicalparametersquantitati
5、velyretrievedfromASTERdatawereastheinputsofSVAT-basedmodel—SEBS(SurfaceEnergyBalanceSystem),toderivethelatentheatfluxanddailyI.INTRODUCTIONevaporation,inwhichtheparameterizationschemesforRemotesensingprovidesareliable,robustapproachtocalculatingtheinstantane
6、oussolarradiationanddailyintegratedmonitorlandsurfaceenergyandwaterbalanceoverlargeradiationwereimprovedbyaccountingforthevariationsinslopeareastwo-dimensionally,whichisveryimportantandusefulandazimuthoflandsurfaceandterrainshadowinmountainousareas.Afterprel
7、iminaryvalidationandcomparison,weconsiderinresearchesandapplicationsinglobalclimatechange,thattheestimationoflandsurfacewaterandheatfluxesaswellhydrology,ecologyandagronomy.Employedtoinferasdailyevaporationshowsareliableresult,whichalsoimpliesbiophysicalpara
8、metersrelatedtoland-atmosphereinteractionthattheparameterizationmethodsandSEBSmodelarefeasible.andoftheirintegrationintoalandsurfacemodel,remoteThenthespatialpatternsoflandsurfaceheatfluxesaswel