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60年来汉江安康站降水径流变化特征分析 Title:AnalysisoftheVariationCharacteristicsofPrecipitationandRunoffatHankouStationontheHanRiveroverthePast60Years Abstract: ThispaperaimstoanalyzethevariationcharacteristicsofprecipitationandrunoffatHankouStationontheHanRiveroverthepast60years.Theanalysisisbasedonhistoricaldatacollectedfromreliablesources.Thestudyrevealsthetrends,patterns,andfactorsinfluencingthechangesinprecipitationandrunoff,providingvaluableinsightsforwaterresourcemanagementandfloodpreventionintheregion. 1.Introduction: TheHanRiverisoneofthemajorriversinChina,playingacrucialroleinregionalwatersupply,irrigation,andfloodcontrol.HankouStation,locatedontheHanRiver,hasalonghistoryofmonitoringmeteorologicalandhydrologicaldata.Byanalyzingthevariationcharacteristicsofprecipitationandrunoffatthisstation,theimpactsofclimatechangeandhumanactivitiesonwaterresourcescanbebetterunderstoodandappropriatestrategiescanbedeveloped. 2.DataandMethodology: HistoricaldataofprecipitationandrunoffatHankouStationfrom1960to2020werecollectedfromreliablesources.Thesedatawerethenprocessedtoidentifylong-termtrendsandpatterns.Statisticaltechniquessuchastime-seriesanalysis,trendanalysis,andcorrelationanalysiswereappliedtouncoverthevariationcharacteristics. 3.ResultsandDiscussion: 3.1PrecipitationVariation: Theanalysisshowsthatthereisanoticeablevariationinannualprecipitationoverthepast60years.Thedataindicateanincreasingtrendinannualprecipitation,althoughwithsignificantinter-annualfluctuations.However,furtheranalysisrevealsthatthisincreasingtrendismoreprominentincertainseasons,suchasthesummerandautumnseasons.Theanalysisalsohighlightsthepresenceofextremeprecipitationevents,indicatinganincreasedriskofintenserainfallandpotentialforflooding. 3.2RunoffVariation: ThevariationofrunoffatHankouStationfollowsasimilarpatterntothatofprecipitation.However,duetotheinfluencesoffactorssuchasevaporationandsoilmoisture,therunoffresponsetoprecipitationshowssomedifferences.Theanalysisrevealsthatalthoughtheoveralltrendisincreasing,t