5.3 Meteorology

    Therearealtogether210rainfallstationsand14meteorologicalstationsscatteringaround,aswereillustratedinFigure5-5(A)andFigure5-5(B).Itisknownthattherainfallandmeteorologicalobservationsarepointrepresentativeandthedatashouldbeinterpolatedontothecatchments.Thep......查看详细>>

标签:水文模拟预测

5.4 Results and discussion

    5.4.1CalibrationandverificationThesimulationwascarriedoutwithcontinuousinputmaterialsof11yearsprecipitationandmeteorologicaldata(from1980to1990).ThecalibrationresultsofsimulatedhydrographagainsttheobservationsateachhydrologicalstationwerepresentedinFigure......查看详细>>

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5.5 Summary

    ThisstudypresentedastudycaseondistributedwaterresourceassessmentonupstreamHanjiangRiver.Thestudyareawasdividedinto12routingrelatedcatchmentsalongtheupstreamreachofHanjiangRiver.Themodelwascalibratedbythecomparisonofsimulatedandobservedhydrographateachcatc......查看详细>>

标签:水文模拟预测

6.1 Study area

    UYRregionislocatedinwesthighlandgeographicalregionofChina(Figure6-1).Itischaracterizedwithabundantwaterquantityandlandresourcespotential.TheriveroriginatesfromQinghai-Tibetanplateau.Drainageareacoversapproximately983000km2(Latitude:25.4°-35.8°N,Longtitude......查看详细>>

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6.2 Climate change scenarios

    Inadditiontohistoricalchangeindicatingfuturetrendofwaterresources,itisalsoimportanttoinvestigatehowclimatechangeaffectswaterresourcespatiotemporalpattern.IPCChasreleasedemissionscenariosusedfordrivingGCMnamedSRES.Itprovidessupportingdataforevaluatingclima......查看详细>>

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6.3 Land cover and soil texture

    StatisticalsummaryshowsthatlanduseinUYRregioncanbeclassifiedinto23categories[Figure6-2(a)].Theregionisdominatedbygrassland(50.8%),openforest(9.95%),forestland(13.7%),andruralarea(3.52%).Inhighlandarea,landscapeiscoveredbylowdensitygrass,gobiandlandcap.For......查看详细>>

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6.4 Meteorological and hydrological data

    UYRissub-delineatedinto52geo-hydrologicalcatchments.TopologicalrelationshipisillustratedinFigure6-3(a).Meteorologicaldataiscollectedfrom15weatherstations[Figure6-3(b)]inUYRincludingdailyprecipitation,airtemperature,humidity,windspeedandsunshineprovidedbyC......查看详细>>

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6.5 Results and discussion

    6.5.1TemperatureandprecipitationTemperatureandprecipitationarestatisticallydownscaledtolocalweatherstations.Annualandseasonaltemperatureshowsgoodagreementsbetweenobservationandprediction.Futureincreaseintemperatureisobvious[Figure6-(4)].Generally,itshowsa......查看详细>>

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6.6 Summary

    ThescenariospredictanincreasingtrendoftemperatureinUYRat3.2℃by2099.EmissionA2hasresultedhighertemperatureincreasethanB2.ForscenarioA2,theprecipitationshowsageneraldropinthefuturetoamaximumreductionof8.2%.Increaseoccursinthenorthernandeasternareasandthesou......查看详细>>

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7.1 The efficiency of SA-MO

    ThestudycasecombinedLH-OATandMOSCEM-UAforEasyDHMmodelcalibration.InEasyDHMmodel,29parameterswereincludedthatcanbedividedintoroutingandunderlyingrelatedcategories.ZhubacatchmentlocatedinupstreamofYangtzeRiverwaschosenforhydrologicalmodeling.7.1.1Sensitivit......查看详细>>

标签:水文模拟预测