云对中国区域卫星观测臭氧总量精度影响的检验分析-豆柴文库

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云对中国区域卫星观测臭氧总量精度影响的检验分析
Title:AnAnalysisoftheInfluenceofCloudsontheAccuracyofSatellite-basedObservationsofRegionalOzoneTotalAmountinChina
Abstract:
Satellite-basedobservationsplayacrucialroleinmonitoringandstudyingtheEarth'satmosphericcomposition,includingthetotalamountofozone.However,cloudspresentasignificantchallengetotheaccuracyoftheseobservations,particularlyinregionssuchasChinawithvariablecloudcover.Thispaperinvestigatestheimpactofcloudsontheprecisionofsatellite-basedmeasurementsofregionalozoneinChinaandprovidesananalysisofthetestresults.
1.Introduction:
Thedepletionoftheozonelayerhasbecomeapressingenvironmentalissuewithsignificantimplicationsforhumanhealthandtheenvironment.Satelliteobservationsprovidevaluabledataformonitoringandunderstandingthedynamicsofatmosphericozone.However,thepresenceofcloudscanhindertheaccuracyoftheseobservations,necessitatingacomprehensiveanalysisoftheirimpactonregionalozonemeasurementsinChina.
2.Methodology:
Toassesstheinfluenceofcloudsonsatellite-basedozonemeasurements,weemployeddatafrommultiplesatelliteinstruments,includingtheOzoneMonitoringInstrument(OMI),theTroposphericEmissionSpectrometer(TES),andtheModerateResolutionImagingSpectroradiometer(MODIS).Additionally,ground-baseddatafromozonemonitoringstationsacrossChinawereusedforvalidationpurposes.
3.ImpactofCloudsonOzoneMeasurements:
Cloudshaveasignificanteffectonsatellite-basedozonemeasurementsduetotheirabilitytoscatterandabsorbincomingradiation.Thisscatteringleadstoreducedsignalintensity,whileabsorptionbycloudscanintroduceerrorsinretrievalsoftotalozoneamount.WeanalyzedthespatialandtemporaldistributionofcloudsindifferentregionsofChinatoidentifyareasofhighcloudcoverandtheirimpactonsatellitemeasurements.
4.ValidationandComparison:
Tovalidatetheaccuracyofsatellitedata,ground-basedozonemeasurementsfromvariousmonitoringstationsinChinawerecomparedwithsatelliteobservations.Thiscomparisonallowedustoassessthedifferencesbetweencloudyandnon-cloudyconditionsandidentifypotentialbiasesinsatellite