Page 57 - 2023年第54卷第8期
P. 57
AssessmentTool[J].StochasticEnvironmentalResearchandRiskAssessment,2013,27(1):209 - 221.
[32] WUT,LIJ,LIT,etal.High - efficientextractionofdrainagenetworksfromdigitalelevationmodelsconstrained
byenhancedflowenforcementfrom knownrivermaps [J].Geomorphology,2019,340:184 - 201.
[33] 田凤云,吴志勇,徐征光,等.黄土高原典型流域网格化逐时降水融合产品 CMPAV1.0的精度分析[J].
水电能源科学,2019,37(2):5 - 9.
[34] HUANGQ,LONGD,DUM,etal.Dischargeestimationinhigh - mountainregionswithimprovedmethodsusing
multisourceremotesensing:AcasestudyoftheupperBrahmaputraRiver[J].RemoteSensingofEnvironment,
2018,219:115 - 134.
[35] 胡春宏,陈建国,刘大滨,等.水沙变异条件下黄河下游河道横断面形态特征研究[J].水利学报,2006,
37(11):1283 - 1289.
[36] 于红波.改进随机森林算法在北方河流测流断面形态预测中的应用[J].水利技术监督,2019(1):203 - 206.
[37] 黄琦.基于多源遥感观测的西南缺资料流域河道径流量反演研究[D].北京:清华大学,2020.
[38] BIRKETTCM.ContributionoftheTOPEXNASAradaraltimetertotheglobalmonitoringoflargeriversandwet
lands[J].WaterResourcesResearch,1998,34(5):1223 - 1239.
[39] WEGLARCZYKS.Theinterdependenceand applicabilityofsomestatisticalqualitymeasuresforhydrological
models[J].JournalofHydrology,1998,206(1?2):98 - 103.
[40] 中国国家标准化管理委员会.水文情报预报规范:GB/T22482—2008[S].北京:中国标准出版社,2008.
[41] SHIH,LIT,WANGK,etal.Physicallybasedsimulationofthestreamflowdecreasecausedbysediment - trap
pingdamsinthemiddleYellowRiver[J].HydrologicalProcesses,2016,30(5):783 - 794.
ImprovementoftheDigitalYellowRiverIntegratedModel
basedonmultisourceremotesensing
4
1,2,3
1,2,3
1,2,3
XUEYuan 1,2,3 ,QINChao ,WUBaosheng 1,2,3 ,ZHANGGa ,LIDan,FUXudong
(1.StateKeyLaboratoryofHydroscienceandEngineering,TsinghuaUniversity,Beijing 100084,China;
2.KeyLaboratoryofHydrosphereSciencesoftheMinistryofWaterResources,TsinghuaUniversity,Beijing 100084,China;
3.DepartmentofHydraulicEngineering,TsinghuaUniversity,Beijing 100084,China;4.EmergencyScienceResearchAcademy,
ChinaCoalResearchInstitute,ChinaCoalTechnology&EngineeringGroupCo.,Ltd.,Beijing 100013,China)
Abstract:Manyriversaredevelopedinmountainousareas,buttheseriversaredifficulttomeasureonsitedueto
thecomplextopography,anditisimpossibletoobtainsufficientbasicriverinformation,whichmakesmountain
riversatypicalpoorlygaugedbasin.Thisstudycombines68rivercrosssectionsextractedfrommultisourceremote
sensingdataand34rivercrosssectionsmeasuredbyhydrologicalstationstoestablishageneralizedmodelofriver
crosssectionsinthemiddleYellowRiver.Thegeneralizedmodelofrivercrosssections ,riversurfacesandtradi
tionalDEM rivernetworksformsarelativelycompleteriverboundarygeometricmorphologyoftheentirewatershed.
Basedontheriverboundarygeometricdata ,theconfluencemodeloftheDigitalYellowRiverIntegratedModel
(DYRIM)wasimproved.Subsequently,intheHuangfuchuanRiverbasin,whichisthefirst - ordertributaryof
theYellowRiver ,basedontheimprovedDYRIM,wesimulatedandverifiedthedailyrunoffprocessinthe2016
floodseasonand21typicalfloodprocessesfrom2010to2016afterusingdatafrom 2010to2015tocalibratethe
model.Theresultsshowthattheinputparametersoftheimprovedmodelcanbeobtainedfromremotesensingob
servations ,andthesimulatedNash - Sutcliffeefficiencycoefficientofdailydischargeishigherthan0.8.Thesimu
latederrorsofflowvelocityandwaterdepthare7% and9% respectively,theerrorofpeakdischargeoffloodis
15% onaverage,andtheerrorofpeakpresenttimewasapproximately1.4h,allofwhichweresignificantlyim
provedcomparedtobefore.Thisresearchcanprovidebasicdataandtechnicalreferencesforthesimulationof
hydrologicalprocessesofmountainriversandresearchonrivergeomorphologyevolution.
Keywords:mountainrivers;multisourceremotesensing;crosssectionmorphology;DigitalYellowRiverInte
gratedModel
(责任编辑:于福亮)
— 9 4 1 —