Therearealtogether210rainfallstationsand14meteorologicalstationsscatteringaround,aswereillustratedinFigure5-5(A)andFigure5-5(B).Itisknownthattherainfallandmeteorologicalobservationsarepointrepresentativeandthedatashouldbeinterpolatedontothecatchments.Thep...[继续阅读]

    5.4.1CalibrationandverificationThesimulationwascarriedoutwithcontinuousinputmaterialsof11yearsprecipitationandmeteorologicaldata(from1980to1990).ThecalibrationresultsofsimulatedhydrographagainsttheobservationsateachhydrologicalstationwerepresentedinFigure...[继续阅读]

    ThisstudypresentedastudycaseondistributedwaterresourceassessmentonupstreamHanjiangRiver.Thestudyareawasdividedinto12routingrelatedcatchmentsalongtheupstreamreachofHanjiangRiver.Themodelwascalibratedbythecomparisonofsimulatedandobservedhydrographateachcatc...[继续阅读]

    UYRregionislocatedinwesthighlandgeographicalregionofChina(Figure6-1).Itischaracterizedwithabundantwaterquantityandlandresourcespotential.TheriveroriginatesfromQinghai-Tibetanplateau.Drainageareacoversapproximately983000km2(Latitude:25.4°-35.8°N,Longtitude...[继续阅读]

    Inadditiontohistoricalchangeindicatingfuturetrendofwaterresources,itisalsoimportanttoinvestigatehowclimatechangeaffectswaterresourcespatiotemporalpattern.IPCChasreleasedemissionscenariosusedfordrivingGCMnamedSRES.Itprovidessupportingdataforevaluatingclima...[继续阅读]

    StatisticalsummaryshowsthatlanduseinUYRregioncanbeclassifiedinto23categories[Figure6-2(a)].Theregionisdominatedbygrassland(50.8%),openforest(9.95%),forestland(13.7%),andruralarea(3.52%).Inhighlandarea,landscapeiscoveredbylowdensitygrass,gobiandlandcap.For...[继续阅读]

    UYRissub-delineatedinto52geo-hydrologicalcatchments.TopologicalrelationshipisillustratedinFigure6-3(a).Meteorologicaldataiscollectedfrom15weatherstations[Figure6-3(b)]inUYRincludingdailyprecipitation,airtemperature,humidity,windspeedandsunshineprovidedbyC...[继续阅读]

    6.5.1TemperatureandprecipitationTemperatureandprecipitationarestatisticallydownscaledtolocalweatherstations.Annualandseasonaltemperatureshowsgoodagreementsbetweenobservationandprediction.Futureincreaseintemperatureisobvious[Figure6-(4)].Generally,itshowsa...[继续阅读]

    ThescenariospredictanincreasingtrendoftemperatureinUYRat3.2℃by2099.EmissionA2hasresultedhighertemperatureincreasethanB2.ForscenarioA2,theprecipitationshowsageneraldropinthefuturetoamaximumreductionof8.2%.Increaseoccursinthenorthernandeasternareasandthesou...[继续阅读]

    ThestudycasecombinedLH-OATandMOSCEM-UAforEasyDHMmodelcalibration.InEasyDHMmodel,29parameterswereincludedthatcanbedividedintoroutingandunderlyingrelatedcategories.ZhubacatchmentlocatedinupstreamofYangtzeRiverwaschosenforhydrologicalmodeling.7.1.1Sensitivit...[继续阅读]