Retrieval of dust aerosol properties over bright-reflecting desert surfaces with the satellite-borne medium resolution imaging spectrometer MERIS [Elektronische Ressource] / von Tilman Dinter

Sujets

• Physik

Informations

• Publié par: universitat_bremen
• Publié le: 01 janvier 2009
• Nombre de lectures: 16
• Langue: English
• Poids de l'ouvrage: 27 Mo

Extrait

hRetrievDissertational04.05.2009ofTilmandustPhaerosolectrometerproponertiesFoereicvhnikerSpbrighMERISt-reectingvdesertDipl.-Ing.surfacesDinterwithacthebsatellite-bhorneysik/ElektrotecMediumBremen,ResolutionImagingeineRetriev.al.ofBremendust.aerosol.prop1)ertieshoHilfsmittelv.er.brigh.t-reectingPhdesert33surfacesersicwithvtheangegebsatellite-bhaborne.Medium.Resolution.Imaging.Sp.ectrometer.MERIS.Dissertationhnikvostfacon40Dipl.-Ing.hTilmandassDinterDissertationVundomalsFQuellenacenhBremen,b.ereic.h.f?r.Ph.ysik.und.Elektrotec.hnik.der.Univ.erit?t.Bremen.zurhErlangungysik/Elektrotecdes(FBakPademischhen04GradesD-28334einesIcDoktorvderhere,Naturwissenscichaftendie(Dr.rer.nat.)selbst?ndiggenehmigteerfa?tDissertationkAusgabanderenetermin:die15.03.2005enenAbgabundetermin:b04.05.2009utztZust?ndigee.Ho04.05.2009c.hsc.h.ullehrer:.Prof..J.P...Burro.ws,.IUP.PD.W..v.on.Ho.yningen-Huene,.IUP.Institut.f?r.Um.w.eltph.ysik.F.ac.h.bereic.Con.ten.ts.Abstract.9.List.of39Publications.11.1onIn.trothicduction.15.1.1.MotivRaation.and.obsphericaljectiv2.1.2.2es..............phase.......2.1.1.1.kness.P.......2.1.2.1.....Cuzzi.of..............15.1.2.State.ofSinglethe.kno.wledge39.................of.optical...31.scattering...............scattering.........ck.semi-empirical.scatter-.particles..16.1.3.Outline.of2.1.3the.thesis..............2.1.3.1.............38.alb...........The....................17.1.4.Desert.dust.in.the30globalDeterminationconthetextyleigh.thic.......2.1.2.article.............................32.Mie.of.particles19.1.5.Saharan.Mineral.Dust.Exp.erimen32tPolla(SAMUM)&.'s.theory.the.ing.nonspherical...................34.Extinction..21.I.F.undamen.tals.25.2.Optical.prop.erties.of.aerosol.and.radiativ.e.transfer3727Optical2.1knessPro.cesses.in.the.atmosphere................2.1.3.2.scattering.edo.....................2.1.4.scattering.function........27.2.1.1.Molecular.Ra.yleigh.scattering....5..CONTENTS.2.24.3.3Radiativ.eSatellitetransfer.equationof(R4TE)..Retriev...aerosol...............Calculation.........of.....72.....Resolution..40.2.2.1.Radiativcalculationse.transp.ort.in.aconditionsscattering.plane-parallelTheatmosphere..a.92.3.6.TRA)41.2.2.1.166Successivdeserte.order.ofscatteringscattering.(SOS)............79.(...Sensitivit........434.2.12.2.2.Source.terms..aerosol.....The.....tables...yleigh.....del.....4.3.5.database.......al.functions.........Retriev.functions........473.72.2.3ectralBoundaryedoconditions........Conclusions...................retriev.The.Sp.).....79..............48.2.2.4.Solutions.ofethe.radiativ.e.transfer.equation..80.al.thic.........82.A.Algorithm.....82.lo49forI.I.Measuremenofts.and.Retriev.als.53873reectanceGround-based.measuremen.ts.55.3.1.Instrumen.tt(CIMELumCE-318)......T.Dinter.....64.Retriev.of.phase.(CIRA.................3.6.1.al.phase.of.dust......56.3.2.Calibration.of.the69instrumenEstimationtsp(ScsinglehneefernerhausalbZugspitze)..................3.857.3.2.1.Langley.plots..............................75.Satellite.al.4.1.Medium.Imaging.ectrometer.MERIS.............4.2.y58.3.2.2.T.emp.erature.stabilisation..........................80.Radiativ.transfer..................60.3.3.The4.3SAMUMretrieveldofcampaignoptical.kness...................4.3.1.Bremen.erosol.al.(BAER)...........4.3.2.of.ok-up.(LUT).desert..61.3.4.Description85ofDeterminationclosureRameasuremenreectancets................4.3.4.surface.mo.......................8862Establishmen3.5ofMeasuremenminimtsreectanceof.aerosol.optical.thic.kness.with.the6sunphotometer.CONTENTS.4.3.6.DiscriminationIVof.w.ater,.cloud,SAMUMland,Minimandtsdesert..retriev.....and................93.5.Results.and.v7alidationA97A.15.1.Satellite.retriev.al.ofimagesaerosol.optical.thicAkness129.............6.2...................ok.endix97dditional5.2endixesComparisonableswith.ground-based.measuremen.ts........115.reectance...........117.kno.Bibliograph.7......99.5.3.Comparison.with.MISR..........107.Satellite.als.................................108.Outlo.111.App.113.A101images5.4appComparison115withTmeasuremenoftsresultsfrom.aircraft..........................A.2.um.database....102.I.I.I.Conclusions.and.outlo.ok.105.6BConclusionsc107wledgemen6.1119Ground-basedymeasuremenT.Dinterts.bAbstractByApprooximatelyt30regions%fromofexptheareEarth'sphaselandthesurfacebistcoSpvloeredandbOneyhadesertsdustorysemi-deserts,Anwhereonaridwithinconditionspartprev(Deutscail.k-scatteredAanderosolsopticaloriginatingts,fromuptheseorregionsdustplaphaseytacsignicanyieldstoroleTheinsatellitedeterminingThicclimateretrievingandandtheRetrievcedhemicaljectcomptS),ositionMineralofythehatmosphere.tsSolarMERISradiationabistsscatteredMoroandereabsorbSAMUMededbareyretrievdusteparticlesoses,inantheatmosphereatmosphere.haracteristicThdescribus,ofthesetiesaerosolsforconsensing.tributeesignicanabtlyproptoerthesatelliteradiationquanbudgetedoftstheerosolEarth-atmosphere(Asystem.hCoAolingerandregionswBremenarming(BAER)ofdevthevEarth-atmosphereDREAMSsystemaerosoldueornetohthethedirexpefundedctDFaerFosolsceebiningcttheandfromfurtherResolutionseinstrumencENVISAondarybasedaerradiationosoltseethectserties,fore.Usingg.expcloudeformation,imparetitieshighly-discussedtotopicsAinforrecenregionstSahara.climatesensingresearcquanh.opticallyRetrievingparametersaerosolinpropsurfaceertieseyfromthespace-bwhicornetheplatformshaabeciedoes.vphaseeedeserts,radiativwhereintheinsurfacehareectance9isinformationusuallyoutvaerosoleryertiesbrighvt,sourceisfromadata.cbasichallengingtitproblem.retrievThefromconmeasurementributionisofAsurfaceOpticaltoknessTOOT).Aapproac(Ttoop-Of-Athetmosphere)OTreectancevcanaridreacsemiaridhbasedvthealuesAErosolofalmorehasthaneen90%,elopespandeciallyalidatedforthewProa(DustvREtrievAlselengthsspace-babinstruMenowhicviseof500SAharannm.dUstFeriMenor(SAMUM)thisbreason,thedetailedGknohewledgeorscofungsgemein-aerosolhaft).andcomsurfacemeasuremenopticalofpropbacertiesradiationfromthedesert(MEdiumregionsImagingisectrometer)requiredttooarddistinguishT-1atmosphericground-radiationmeasuremenfromduringradiationclosureresultingerimenfrominsurfacescco,thataerosolarepropinwtrinsicallydeterminedbrighselectedt.cations.DetailedtheradiativclosureeerimentransferwcalculationsderivhaallvortanequanbthateenneededdonesetinsatelliteaOTsensitivitalsyaridstudydesertwithinlikthisthethesisFtoremoteyieldpurpinformationtheseabtitiesoutthetherelevtecthnicalofandaerosolphtheysicalandfeasibilitreectance.ykofcdistinguishingisbaerosoletfunction,wheenesaerosol-scatteringloadede-atmosphereviourandspsurface.aerosolTheypmainUncertainpurpinosefunctionofvthisconsequenceswotherorkeisharacteristicstoremoteestablishDeviationsatheretrievfunctionalvtecahniquethat 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