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                      FloodcontrolriskanalysisbasedonIntegratedTime - VaryingMomentmodeland
                                              DynamicMonteCarlomethod

                                                               1,2
                                                                              3,4,5,6,7,8
                                              1,2
                                   DONGLijun ,DONGXiaohua ,MAYaoming                 ,
                                                    1,2
                                                               1,2
                                                                              9
                                           WEIChong ,YUDan ,SUZhongbo
                       (1.CollegeofHydraulicandEnvironmentalEngineering,ChinaThreeGorgesUniversity,Yichang 443002,China;
                        2.EngineeringResearchCenterofEco - EnvironmentintheThreeGorgesReservoirRegionofMinistryofEducation,
                                                    Yichang 443002,China;
                   3.Land - AtmosphereInteractionanditsClimaticEffectsGroup,StateKeyLaboratoryofTibetanPlateauEarthSystem,Environment
                     andResources (TPESER),InstituteofTibetanPlateauResearch,ChineseAcademyofSciences,Beijing 100101,China;
                        4.CollegeofEarthandPlanetarySciences,UniversityofChineseAcademyofSciences,Beijing 100049,China;
                                  5.CollegeofAtmosphericScience,LanzhouUniversity,Lanzhou 730000,China;
                      6.NationalObservationandResearchStationforQomolongmaSpecialAtmosphericProcessesandEnvironmentalChanges,
                                                    Dingri 858200,China;
                          7.KathmanduCenterofResearchandEducation,ChineseAcademyofSciences,Beijing 100101,China;
                      8.China - PakistanJointResearchCenteronEarthSciences,ChineseAcademyofSciences,Islamabad 45320,Pakistan;
                     9.FacultyofGeo - InformationScienceandEarthObservation,UniversityofTwente,Enschede 7500AE,TheNetherlands)


                  Abstract:Comparedwiththehistoricalhydrologicalsituationthatservesasthebasisforthedesignofwaterconser
                  vancyandhydropowerprojects ,thesituationaffectedbyglobalclimatechangeinfuturewilldeviatefrom it.This
                  willleadtochangesofhydrologicalanalysisresultsofrunoffanddesignfloods.Asaresult ,thechangeswillaffect
                  thelong - termoperationsafetyandfloodcontrolofcascadereservoirsinthebasin.ThisstudytakestheYalongRiv
                  erbasinastheresearcharea ,andquantitativelyidentifiesthechangesinmeteorologicalandhydrologicalelements
                  ofthebasinunderfutureclimatechangeconditionsthroughcouplingtheSWAThydrologicalmodelandglobalcli
                  matemodel.Basedonthis , anIntegratedTime - VaryingMoment(ITVM) modelthatcanconsidernon -
                  stationarityandhistoricalextraordinaryfloods(HEFs) informationjointlyisproposedtocarryoutthenon -
                  stationaryfrequencyanalysis.Finally ,thefloodcontrolriskassessmentoftheYangfanggouhydropowerstationun
                  derfutureclimatechangeconditionsisconductedbasedontheDynamicMonteCarlo (DMC)method.Themainre
                  sultsareasfollows :thecalibratedSWATmodelhashighsimulationaccuracyandgoodspatialapplicabilityinthe

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