Page 104 - 《水资源与水工程学报》2024年第5期
P. 104
!35 "!5 # & ' ( ) & * + , - Vol.35No.5
2024 $ 10 % JournalofWaterResources&WaterEngineering Oct.,2024
DOI:10.11705/j.issn.1672-643X.2024.05.12
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、 iEU、 5U[¦{) äkpYn{ MIKESHEYV。C MIKEHydroriver YV'@5ilU'[ MIKESHE
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MNFOP:TV121 .4 QRSTU:A QVWP:1672643X(2024)05010007
Mediumshortterm runoffforecastofKaiduRiverbasedonMIKEcouplingmodel
1,2
3
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LIUBo ,LUOZhen,CHENFulong ,WANGTongxia ,LIANGWenxiang
(1.CollegeofWaterConservancy&ArchitecturalEngineering,ShiheziUniversity,Shihezi832000,China;2.KeyLaboratoryof
ColdandAridRegionsEcohydraulicEngineeringofXinjiangProduction&ConstructionCorps ,Shihezi832000,China;
3.XinjiangProduction&ConstructionCorpsSurveying&DesigningInstituteGroupCo.,Ltd.,Xi’an710000,China)
Abstract:InordertoprovideatechnicalsupportfortheoptimaloperationoftheKaiduRiverReservoir
andthescientificregulationofwaterresources ,theMIKEcouplingmodelisusedtoforecastthemedium
shorttermrunoffinthebasin.TheweatherforecastmodelfromtheEuropeanCentreforMediumrange
WeatherForecasts(ECMWF)isselectedasthemeteorologicaldatainputtoconstructaMIKESHEmod
elconsistingofsixsubmodules ,namely,evapotranspiration,unsaturatedzone,saturatedzone,slope
flow ,riverandlake,andsnowmeltmodule.Then,theMIKEHydrorivermodelwhichisusedforthe
riverconfluencecalculationiscoupledwithMIKESHEmodeltopredicttherunoffinformationinthenext
2
tendays.Thecorrelationcoefficient(R),NashSutcliffeefficiencycoefficient(NSE)andrelativeerror
(BAIS)areusedtoevaluatethecalibrationandverificationeffectofthemodel,andthepredictioneffi
ciency(E)isintroducedtoevaluatethemodelpredictionaccuracy.Theresultsshowthatindailyrunoff
2
simulationoftheKaiduRiver,theR andNSEintheverificationperiodarebothabove0.70,andthe
BAISisonly-15%,indicatingagoodfitandcorrelationbetweenthesimulatedrunoffandthemeasured
2
runoff.Intheforecastperiod,NSE=0.53,R =0.61,E=0.51,indicatingacorrelationof0.61be
tweenthesimulatedandmeasuredvalue.ThemediumshorttermrunoffforecastbasedontheMIKEcou
plingmodelcanprovideareferencefortheoptimalutilizationofwaterresourcesintheKaiduRiverBa
sin.
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