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甘肃地区近地层光学湍流测量研究 议论文 Title:ResearchonNear-SurfaceOpticalTurbulenceMeasurementinGansuRegion Abstract: Themeasurementandcharacterizationofopticalturbulenceinthenear-surfacelayerareofutmostimportanceforvariousscientificandpracticalapplications.Thispaperpresentsacomprehensivestudyonthemeasurementofnear-surfaceopticalturbulenceintheGansuregionofChina.Theresearchaimstounderstandthespatiotemporalvariabilityofopticalturbulenceanditsimpactonvariousapplicationssuchasatmosphericoptics,remotesensing,andastronomy.Thepaperdiscussesthemeasurementtechniquesused,thechallengesfaced,andtheresultsobtainedfromthestudy.Thefindingscontributetoabetterunderstandingofthenear-surfaceopticalturbulenceintheGansuregionandprovidevaluableinsightsforfutureresearchandpracticalapplications. Introduction: Opticalturbulence,alsoknownasatmosphericturbulence,referstoirregularfluctuationsintherefractiveindexofaircausedbythevariationoftemperature,humidity,andwindspeedintheatmosphere.Thesefluctuationscandegradetheperformanceofvariousopticalsystems,suchasimagingsystems,lasercommunications,andtelescopes.Hence,itiscrucialtostudyandmeasureopticalturbulenceindifferentregionstodevelopmitigationstrategiesandenhancetheperformanceofopticalsystems.Inthispaper,wefocusontheGansuregion,auniqueanddiverseareainChina,knownforitscomplexterrain,varyingclimaticconditions,andsignificantimpactontheoverallatmosphericopticsintheregion. MeasurementTechniques: Severalmeasurementtechniqueswereemployedtomeasurenear-surfaceopticalturbulenceintheGansuregion.Thesetechniquesincludescintillometers,balloon-bornemeasurements,andground-basedinstruments.Scintillometers,basedonthemeasurementoftheintensityfluctuationsofincominglight,providevaluableinformationonthestructureparameterofopticalturbulence(Cn2)intheloweratmosphere.Balloon-bornemeasurementsinvolvelaunchinginstrumentedballoonsatdifferentaltitudestomeasuretheverticaldistributionofrefractiveindexfluctuations.Ground-basedinstruments,suchassonicanemometers,temperatureandhumiditysensors,andt