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Landsat-8TIRS数据在某核电站温排水监测中应用探讨.docx

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Landsat-8TIRS数据在某核电站温排水监测中应用探讨 Abstract Asatypeofremotesensingtechnology,theLandsat-8ThermalInfraredSensor(TIRS)datahasbeenincreasinglyusedinenvironmentalmonitoring,particularlyforwatertemperaturemonitoringinnaturalwaterbodiesandpowerplantdischargecoolingsystems.ThisstudyaimedtoexploretheapplicationofLandsat-8TIRSdatainthemonitoringofthermaldischargefromanuclearpowerplant.Byanalyzingandinterpretingthethermalinfrareddata,thetemperaturedistributioninthecoolingwaterdischargesystemwasobtained.Theresultsshowedthatthetemperatureofthecoolingwaterwoulddecreaseasitflowsdownstream,buttherateofdeclinemayvarydependingonenvironmentalfactorsandthestatusofthepowerplant.ThispaperhighlightstheadvantagesofusingLandsat-8TIRSdataforwatertemperaturemonitoringinthecontextofnuclearpowerplantoperation,notonlybecauseTIRSprovideshigh-resolutiondatabutalsobecauseitcanmonitormultipleparameterssimultaneously. Introduction Inrecentyears,thedevelopmentofremotesensingtechnologyhasbeenincreasinglyutilizedinenvironmentalmonitoring,especiallyinthemonitoringofaquaticenvironments.TheLandsat-8ThermalInfraredSensor(TIRS)isoneoftheimportantremotesensingtoolsthatcanprovidevaluableinformationforstudyingthethermalcharacteristicsofnaturalwaterbodiesandthermaldischargesystemsofnuclearpowerplants.Monitoringofthecoolingdischargesystemofnuclearpowerplantsiscrucialforenvironmentalmanagementandprotection.Thermaldischargefrompowerplantscanhaveasignificanteffectontheaquaticenvironment,particularlyonaquaticfloraandfauna.Hence,themonitoringofthethermaldischargeinnuclearpowerplantsisessentialtopreventnegativeimpactontheaquaticenvironment. ApplicationofLandsat-8TIRSData RemotesensingusingLandsat-8TIRSdataiswidelyusedformonitoringwatertemperatureinlargenaturalwaterbodies,suchastheBlackSea,theGreatLakesinNorthAmerica,ortheAmazonriver(Houetal.,2021;Torresetal.,2020).FromthethermalinfrareddataobtainedfromLandsat-8TIRS,itispossibletoanalyzethetemperaturedistributioninthewaterbodyandidentifyhotspots.Assuch,itisusefulinmonitori