该【Temperature and Emissivity Separation ‘Draping’ Algorithm Applied to Hyperspectral Infrared Data Valerio Lombardo 】是由【tiros009】上传分享，文档一共【16】页，该文档可以免费在线阅读，需要了解更多关于【Temperature and Emissivity Separation ‘Draping’ Algorithm Applied to Hyperspectral Infrared Data Valerio Lombardo 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erentfromsurfacetemperatureduetotwomainreasons:thesurfaceisnotablackbody,thusemissivitycontributionisnotnegligible;partoftheradiationemittedbythesurfaceisabsorbed,re?, ectsofsolarontaminationoftheradiantsignal[1].,12,2046;doi::..,12,20462of16intheshortwaveinfrared(SWIR)regionofthespectrumhavebeenusedtoestimatethetemperatureofhotvolcanicfeatures,suchasbasalticlava?ows,.,[3–6],domesandsiliciclava?ows,.,[7–10]andlavalakes,.,[11–14].TheSWIRradiationemittedbyvolcanicfeaturesdependsonboththetemperatureandthematerial’?ows[15]allowsforthedeterminationofthetotalthermal?uxrelatedtothevolume?owrateinanindividual?ow,.,[4,5,12,13],whichiscrucialfortimelylava?[16]foractivelava?ows,andfurtheradaptedbymanyauthors,.,[4,5,8,17–19],considersthethermal?uxasafunctionofthefractionalareaoftwoormorethermallydistinctradiantsurfaces:oneupiedbysolidcrustedlavaandtheotherone,correspondingtomoltenlavaradiatingfromcracksinthecrust,,,emissivitymustberetrieved(orprovided)-weathered,–[20,21].Theapplicationofthese“cold”moninvolcanoremotesensing,.,[4,5,8,12,13,18,19,22,23].Previousstudiesalsoinvestigatedtheemissivityofmoltenbasaltmeltsinthethermalinfrared(TIR)spectralregion,.,[24,25].TheTIRspectralmonlyusedforlandsurfaceestimation,thus,numerousstudieshavestudiedthesimultaneousestimationoftemperaturesandemissivityfromhyperspectraldata[26–37].Inthiswork,weinvestigatedhowwellthese“cold”–2500nmaregiveninSection3,-thermallyhomogenoussourcesusingthe?eld- erentportionsofthewavelengthspectrum350–2500nmwithaspectralresolutionof2–12nm[38].–03eruption,position[39],-experimentpetrologicinvestigationconfirmedthattheexperimentalproducts,whichwemeasured,ürzburg(Figure1),Germany,(Figure2)inductivelyheatedabovemagmatictemperature(>1500K)usingaradiofrequencygenerator[40].Oncethedesiredtemperaturewasreached,thelidofthecruciblewasremovedtoexposethemoltenbasalttoair,anditssurfacewasremotelyprobedwhilecoolingdownovertimeuntilitreachedaconstanttemperature,(,–m,temperaturerange520–2300,–,c-typesensor)andanS-typethermocouple(Pt/PtRh,temperaturerange220–2000K,%).Inadarkroomenvironment,wecollectedspectrafromthefreesurfaceofthemeltusingthefield-portableFieldSpec.:..,12,,,,,12121212,xFORPEERREVIEW,xFORPEERREVIEW,xFORPEERREVIEW,:basalticrocksaremeltedinasteelcrucibleinductivelyheatedusingaExperimentalsetup:basalticrocksaremeltedinasteelcrucibleinductivelyheatedusingaExperimentalsetup:basalticrocksaremeltedinasteelcrucibleinductivelyheatedusingaExperimentalsetup:basalticrocksaremeltedinasteelcrucibleinductivelyheatedusingaExperimentalsetup:::::::thermocouple,pyrometer,:thermocouple,pyrometer,andathermaltheleft:thermocouple,pyrometer,andathermaltheleft:thermocouple,pyrometer,andathermaltheleft:thermocouple,pyrometer,:aportablemeteo-:aportablemeteo-:aportablemeteo-:aportablemeteo-:aportablemeteo-stationforcontinuouslyrecordingatmosphericstationforcontinuouslyrecordingatmosphericstationforcontinuouslyrecordingatmosphericstationforcontinuouslyrecordingatmosphericparameterstoremovetheeambientparameterstoremovetheeffectsofthambientparameterstoremovetheeffectsofthambientparameterstoremovetheeffectsofthambientparameterstoremovetheeffectsofth (10cminnerdiameter)(10cminnerdiameter)withitslidduringthemeltingphaseofanThesteelcrucible(10cminnerdiameter)withitslidduringthemeltingphaseofanThesteelcrucible(10cminnerdiameter)withitslidduringthemeltingphaseofanThesteelcrucible(10cminnerdiameter) ?beropticwithaconicaleiscollectedbytheinstrumententryopticseiscollectedbytheinstrumententryopticseiscollectedbytheinstrumententryopticseiscollectedbytheinstrumententryoptics?eldofview(FOV)of35andprojectedintoaholographicdiffractiongratinandprojectedintoaholographicdiffractiongratinandprojectedintoaholographicdiffractiongratinandprojectedintoaholographicdiffractiongratin.However,thebare?(FOV)of35conicalfieldofview(FOV)of35conicalfieldofview(FOV)of35conicalfieldofview(FOV)of35(Opt1)and3(Opt3),°°°°.However,,,,°°°°(Opt1)and3(Opt1)and3(Opt1)and3(Opt1)and3°°°°(Opt3),(Opt3),(Opt3),(Opt3),,asadoptedduringtheexperiments,the40cm,asadoptedduringtheexperiments,the40cm,asadoptedduringtheexperiments,the40cm,asadoptedduringtheexperiments,the:..,12,,asadoptedduringtheexperiments,,,weindicatewiththeterm“pixel”,weusedtwoneutraldensity?lters(F2andF5;Table1)toingthr
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