MODIS Science Team

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MCST PresentationtotheMODIS Science TeamfromMCST (MODISCharacterizationSupport Team)John L. Barker, Head301/286-9498 or GSFCmail: JBarkcrJoann M. K. Harnden301/286-4133 or GSFCMail:JHarndcnCode 925- Sensor Developmentand CharacterizationBranchStevenG. Ungar301 /2864007or GSFCmail:SUngarBrian L. Markham301 /286-5240or GSFCmail:BMarkhamCode 923- Biospheric Sciences BranchNASA / Goddard Space Flight Center, Greenbelt, Maryland 20771FAX: (301 ) 286-92 Presented by:John L. BarkerContributionsbyHarold Geller, Jon Burelbach,Barbara Grant, Doug Hoyt, Janie Nail(301 )286-941 2 or (301 )982-3700 GSFCmail:BGrant,JNall,Research and Data Systems Corporation (RDC)7855 Walker Drive, Greenbelt, MD, 20770Fax: (301)286-9200 or (301)982-37491400 Wednesday,15 April 1992A lditoritlm, Bldg 8, Goddard Space Flight CenterMCST Pjohn L. the MODIS science Team.r /NASA/CSFC/925/MCST(MODIS Characterizationt-1tation toSupport Team)at the Plenary session of the Wlence Team Meeting 15 AF224/1 192Talk#7 Macllci Film 15APR92,MCST%i.27:00A

Overview of MCST Presentation to MODIS Science TeamMCST Objectives, Priorities, and PersonnelMODIS/MCST Calibration Data ProductsStrategyData ProductsCalibration PlanCalibration HandbookMODIS/MCST Utility Data ProductsTexture AlgorithmClassification Overlay/Masking AlgorithmMCST-Related MODIS Scene Simulation ActivitiesRequirements, Properties and ApproachAtmospheric ModelsGlobal Site SelectionSimulated MODIS U.S. Land/ Water MaskMCST Bulletin BoardMCST Presentationto thr MODIS Science TeamJohn L,Barker /NASA/GSFC/925/MCST(MODIS CharacterizationPage-2Suppott Tcamlat the Plenary session of the lcnce Team Meeting 15 April 1992Talk#7 Macllc{ File: 15APR92.MCST5ci.27:OU4/15/92

MCST Prioritiesunchanged from1990 and 1991 MODIS Science Team Meetings1. Instrument-RelatedCharacterization/Calibration2. Algorithms, Software and Hardwarefor EOC/MCST Monitoring of In-Orbit DataUtility Products4 9 Simulated MODIS Imagery5 Cooperative Team Member and MCSTDiscipline-Related Product Sensitivity to CalibrationMCST P John L.i‘ntationtothe MODIS %icncc Team(MODIS Characterizationr /NASA/GSFC/925/MCST“- “c-3Supporf Team)’92at the Plenary session of the %icnce Team Meeting 15 A[Talk#7 Macllci File 15APR92.MCSTSci.27:004/ ./92

MCST PersonnelJohn BarkerJoann HarndenBrian MarkhamSteve Ungar925925923923MCST HeadArtificial Intelligence/Scene Simulation / ModelingInstrument Charact./Field Calibration/SimulationMODIS Scene Simulation / Utility AlgorithmsCivil Servants with Interfaces to MCSTPeter AbelBill BarnesKen BrownWayne EsaiasBruce GuentherForrest HallChris JusticeMichael D. King925970925971925923923913Aircraft Underflights / ThermalMODIS Instrument Scientist / SeaWiFSMODIS Airborne Simulator (MAS)MODIS Ocean Discipline Head / SeaWiFSEOS AM Project Scientist / EOS Calibration ScientistImage-Based Radiometric Rectification CalibrationMODIS Land Discipline Leader / AVHRR/ NDVIDeputy Team Leader /Atmosphere Head / CERESMCST presentationto the MODIS science TeamJohn L.Barker /NASA/GSFC/925/MCST(MODIS CharacterizationPagc4Support Team)at the l’lcnary session of the %ience Team Meeting 15 April 1992Talk#7 Macllci File: 15APR92.MCSTSci.27:W4/15/92

MCST PersonnelContractors, RDC (Research and Data Systems Corporation)Harold GellerOut-Going Project ManagerPhil ArdanuyActing Project ManagerJon BurelbachProgrammer /Analyst / Image AnalysisBarbara GrantOptics Engineer \ SBRC Interface / Calibration PlanDoug HoytScientist / Solar Irradiance/Janie NailTechnical Editor / Meetings / Plans/ MCST.BBGeorge RiggsScientist / Utility/MaskingMCST PrJohn L.B, tation to the MODIS Science Team/NASA/GSFC/925/MCST(MODIS CharacterizationrSupport Team)-5MODIS Calibration HandbookAlgorithm / Snow / Iceat the Plenary session of the Science Team Meeting 15 Ap92Talk#7 Macllci File 15APR92.MCST&i.27:004/”lo192

MODIS Science Team Organization ChartI MCRPIMODISCalibrationMODIS Team LeaderMODISInstrumentScientistV. SalomonsonMODISje/ 900ut Team Leader. 88. lna /913MODISTechnicalTeam1W. Barnes/ 970Review Panelof MCST SuppliedAlgorithmsMODIS Science Team23 Team MembersIMSSOP. Slater/U of AZ ChairR. Evans/U of MiamiC. Johnson/ NISTY. Kaufman/ GSFC/923H. Kieffer / USGSP. Menzel/ NOAA/NESDISJ.P. Mullet/ U.Coil.LondonMODIS Science Support OfficeImIII MSDSTMCST IMODISScience DataSupport TeamA. Fleig / 900CharacterizationSupport TeamJ. Barker/I925Civii Servants.Civil ServantsA. MecherikunnelCivii ServantsJ. Harnden / 925P. Abel/ 925B. Markham/ 923S. Ungar / 923V. Kalb / 923W. Webster/ContractorsL. Carpenter/ContractorsP. Ardanuy / RDCJ. Burelbach / RDCB. Grant/ RDCMODISAdministrativeSupport TeamL. Stuart/ 920922RDC/ 920H. Oseroff / 920.2D. Toll/ 974ContractorsS. McLaughlin/RAiT. Goff / RDCL. Gumley/ RDCB. Vallette / RDCD. Hoyt/ RDCJ. Nail/ RDCG. Riggs/MCST Presentation to the MODIS science TeamJohnL.Barker/NASA/GSFC/92S/MCST (MODIS CharacterizationRDCPage&Suppoti Team)TeamMinting 15April 1992at the Pfenary session of the ScienceTallc#7 MacllclHle 15APR92.MCST&i.2 7:004/15/92

MODIS/MCSTCalibration Strategy1. Use Alternative MODIS Calibration MethodologiesSeveral alternative calibration methodologieswill be implemented throughout 15-year missionto provide a robust unique “official” calibration algorithmand to allow for its validation by independent methods2. Characterize Precision on a Time-Scale of MonthsPost-launch quantitative characterizationand monitoringof the precision (repeatability) with which MODIS at-satellite radiancesare measured by various methodswill occur within 2 to 6 monthsIMCST Pr - ntation to the MODIS Scicncc TeamJohn .G/NASA/GSFC/925/MCST(MODIS Characterizationr- .q-7Support Team)at the l’lcnary session of the %Icncc Team Meeting 15 ATTalk#7 Macllci File 15APR92,MCSTSci.27:W4/‘,92,92

MODIS/MCSTCalibration Strategy (continued)3. Characterize Accuracy on a Time-Scale of YearsPost-launch quantitative characterization and monitoringof the accuracy with which MODIS at-satellite radiancesare measured by various methods and on two in-orbit instrumentswill occur within 3 to 5 years4. Validate Math Model in 10-15 YearsValidation of the components of the predictive radiometric math modelsfor each MODIS instrument(with an expected life-time of five-six years each)will occur over the fifteen year life-time of EOS missionMCST presentationto the MODIS Science TeamJohn L.Barker /NASA/GSFC/925/MCST(MODIS CharacterizationPagc Support Team)at the Plenary session of the science Team Meeting 15 April 1992Talk#7 Macllci File 15APR92.MCSTSci.27:004/15/92

At-Launch MODIS Calibration Data Products*Primary MCST Product Generation ResponsibilitiesInstrument-Related Characterization/CalibrationFiles for Appending/Accessingwith Raw Level-lA or -lB Imagery RadiometricCalibration/Correction Parameters / Characteristics Within-ImageGeometric Pixel Location Correction or Characteristics SpectralCharacteristicsc Radiometric Math Model Parameters /CharacteristicsCalibrated Level-lB Imagery. At-Satellite RadiancesDerived Level-2 Imageryc Earth-Sun Distance and Solar Zenith Normalized Exoatmospherics Errors in At-Satellite RadiancesReflectance* MCST-generated algorithms and software for operational products,including associated algorithms for automated quality assurance, metadata, and browse products,are to be rehosted to EOSDIS by MSDSTAt-Launch products will be up-dated after launch, as required.MCST P“John L.Lntation to the MODIS %icnce Teamr /NASA/GSFC/925/MCST(MODIS Characterization?.9Support Team)’92at the Plenary session of the Wlence Team Meeting 15 A1Talk#7 Macilci File 15APR92.MCSTSci.27:004/ 1 /92

.Post-Launch MODIS Calibration Data Products*Primary MCST Product Generation ResponsibilitiesInstrument-Related Characterization/CalibrationFiles for Appending/Accessingwith Level-lA or -lB ImagerySolar Calibration Datasets from the Solar Diffuser used for CalibrationLunar Calibration Datasets used for CalibrationDerived Level-2 Information or ImagerySolar IrradianceLunar IrradianceLunar ReflectanceErrors in Reflectance after Atmospheric CorrectionErrors in Pixel Geolocation without Topographic CorrectionErrors in Pixel Geolocation with Topographic CorrectionDerived Level--3 Information or Imagery with Critical Data ProductsErrors in Reflectance after Atmospheric CorrectionErrors in Pixel Geolocation without Topographic CorrectionErrors in Pixel Geolocation with Topographic Correction* MCST-generated algorithms and software for operational products,including associated algorithms for automated quality assurance, metadata, and browse products,are to be rehosted to EOSDIS by MSDSTMCST Presentation to the MODIS Science TeamJohn L.Barker /NASA/GSFC/925/MCST(MODIS CharacterizationPage-10Support Team)at the Plenary session of the Science Team Meeting 15 April 1992Talk#7 Macllci File 15APR92.MCSTSci.27:004/15/92

MODIS/MCSTCalibration Data vestigatorOriginalProductName (from Investigator)At-Launch ProductsCALCharacteristic:: MODIS diancc:MODIS At-SatelliteModel::MODISInstrumentReflcctanw:MODIS ExoatmosphericError::MODIS PLPLSolar Calibration DatasetsLunar Calibration DatasetsDerived Solar IrradianceSalomonson/At-Satellite RadiancesMath ModelExoatmospheric ReflcctancesPost-Launch ar DiffuserRadiance: MODISLunar Referencelrradiance::MODIS Solarlrradiance:MODIS LunarReflcctan :MODIS LunarErron:MODIS ReflectanceErron:MODIS GeometricErroc:MODIS GeometricPLDerivedSalomonson/BarkerPLLunar ReflcctancesLCVCI-2 Salomonson/BarkerLevel-2 Salomonson/ BarkerLevel-3 Salomonson/BarkerPLPLPLBarkerLunar Irradiance*As currently carried in the EOS Science Data Product Database (Yun Chi Lu/936)*The question of whether there are unique EOSAM, EOSPMor combined EOSAM/EOSPM calibration data products has not been examined.rMCSTPr- tation to the MODIS Science Team am]John L.B-11at the IJlenary session of the Science Team Meeting 15 AF927:004/ , 192Talk#7 Macllci File 15APR92.MCSTSci.2

MODIS/MCST Calibration PlanVersion 1, April 131992ObjectiveProvide a comprehensive overview andintegration of all methodologiesused to calibrate the MODIS instrumentsfor all phases of the mission:pre-launch, and in-orbitApproachSBRC MODIS Calibration Management Planis the first and most important documentIt will be included by referenceafter the Preliminary Design Review (PDR)in October, 1992 PDRMCST Presentationto the MODIS Science Team(MODIS CharacterizationSupport Team)JohnL.Barker /NASA/GSFC/925/MCSTPage-12at the Plenary session of the Wlence Team Meeting 15 April 1992Talk#7 MacllciFile:15APR92.MCSTSci.2 7:W4/15/92

Outline ofMODIS Calibration/ Characterization Plan1 Introduction2 Pre-Launch Calibration/Characterization Methodology3 Instrument Cross-CalibrationPre-LaunchIn-Orbit4 Transfer of Calibration/ Characterization fromPre-Launch to In-Orbit using On-Board Calibrators5 In-Orbit Radiometric Calibration/Characterization6hara tq ig :::l:8 Official MODIS/MCST Calibration AlgorithmTn-Orbi o.enm tric9 MODIS/MCST Calibration AlgorithmValidation and Upgrade10 Definitions and ReferencesMCST PJohn L.L tation to the MODIS Science Teamr /NASA/GSFC/925/MCST(MODIS CharacterizationrSupport Team)‘-13at the Plena sewion of the Science Team Meeting 15 Al92Talk#7 Macllci File 15APR92.MCSTSci,27:004/ ,a192

MODIS/MCSTCalibration HandbookObjectiveProvide results of calibrationand sufficient supporting informationto be able to scientifically useand interpret MODIS data.ApproachProduce a stand-alone scientific user’s guidecontaining all one needs to knowabout calibration of MODIS datathroughout the lifetime of the EOS missionThis Handbook will be the starting pointfor MODIS input to an EOS Calibration HandbookMCST Presentation to the MODIS Science TeamJohn L.Barker /NASA/GSFC/92S/MCST(MODIS CharacterizationPilgc-14SupprtTeam)session{ fthe Science Team Meeting 1S April 1992at the P]cnaryTalk#7 Macllci File 15APR92.MCSTSci.27: 4/15/92

Hughes/SBRC MODIS Instrument Delivery ScheduleProtoflight Model (PF) for launch June 1998 on EOSAM-1Flight Model-1 (Fl) for launch June 2000 on EOSPM-1MCST plans to analyze test data as thev are generated1991PHASE CID AWARD19921993I I’[)liI99419951996——19971998——1999)000- HTMODELFLIGHT MODEL 1A.—AcrFLIGHT MODEL 2AFLIGHT MODELS STORAGE0319292-0163-16MCST Pm’-”tation to the MODIS Science TeamJohn L.B ,/NASA/GSFC/925 /MCST (MODIS CharacterizationPSupport Team)‘.15at the Pfena session of the Science Team Meeting 15 ApITalk#7 Macllci File: 15APR92.MCSTSci.27:(MI4/,.?232

Hughes/SBRC MODIS Systems Analysis Overviewincluding NASA/GSFC Instrument RequirementsMCST plans to document scientific rationale for any cl angesI POWERLIFETIMERADIA SOLAR FLUX\\/.—GSFCANAI----YSIS----- opmcs—------”RADIOMETRICREGISTRATION, ‘:%:2:2:“,&“,,SBRC ,“L---k ””r/ ‘I \-, o MECHANICSMEETINGSDATA TRANSFERartblrr nI IUN----’-’“ -“-”isICDS CnPAlISUBSYSTEMS ANALYSISMCST Presentation to the MODIS Science TeamJohn L.Barker /NASA/GSFC/925/MCST(MODIS Characterization. . . . -.HELIADILLIFETIMERADIATION ; . ““”LPLANESI Yv ? Page-16Support Team)at the Plenary session of the Science Team Meeting 15 April 19927:00Talk#7 Macllci File: 15APR92.MCSTSci.24/15/92

At-Launch MODIS Utilitv Data Products*MCST Product Generation ResponsibilitiesDerivedLevel-2 ImageryThree level-2 image spatial products for sets of 250,500, and 1000 m bandsTexture ProductsSixteen-Bit Radiometric Spatial Heterogeneity/Texture Imagederived from one or both of the 250 m MODIS bandsOne-Bit “Pure Pixel” Binarv MaskClassificationOverlay’MapApproximate priority order for developing the masks:“Definitely” Not Cloud“Definitely” Cloud“Definitely” Not Snow/Ice“Definitely” Snow/Ice“Definitely” Not Water“Definitely” Water“Definitely” Not Land“Definitely” LandCalculated Terminator LineImage Terminator Line“Definitely” Not Glint“Definitely” Glint“Definitely” Not Vegetation“Definitely” Vegetation“Definitely” Not Shadow“Definitely” Shadow* At-1aunch products will be up-dated after launchto go from radiance-based to reflectance and temporally-based algorithms,including extension to critical level-3 products.MCST Pr John L.&tation to the MODIS Science Team/NASA/CSFC/925/MCST (MODIS CharacterizationSupport Team)J’17 at the Plenary session of the Science Team Meeting 15 ApI127004/].,32Talk#7 Macllci File 15APR92.MCSTSci.2

MODIS/MCST Land Data Products*IGroup Parameter::QualifierInvestigatorTimeLANDTexture:: MODIS Level-2Salomonson/BarkerALtiNDTexture:: MODIS Level-3Salomonson/BarkerIANDClassification:: MODIS Masks Level-2Classification:: MODIS Masks Level-3Original Product Name (from Investigator)Utility Algorithmwith StrahlerPLUtility Algorithmwith ility Mask with y Mask with Hall*As currently carried in the EOS Science Data Product Database (Yun Chi Lu/936)*The question of whether there are unique EOS-AM, EOS-PMor combined EOS-AM/EOS-PM land data products has not been examined.MCST Presentation10the MODIS Science TmmJohn L.Barker /NASA/GSFC/925/MCST(MODIS Characterization Suppoti Team)Page-18at the Plenary sessionof the SctcnceTeam Meeting 15 April 1992Talk#7Macllci File 15AI’R92.MCSTSci.27:W4/15/92

MCST-Related MODIS Scene Simulation ActivitiesRequirements for Simulated Data SetsSimulated data sets are required to develop, characterize and validate :Calibration algorithms and trade-off studiesfor both the instrument and platformScience and utility algorithmsfor information extractionOperational software for the processing algorithsfor the ground processing/data reduction computersSimulated data sets can provide only a limited representationof the actual temporal data setsthat will be acquired by the MODIS instruments in spacei. e., they are not intended for a priorirepresentative characterization of global processesMCST Pr)ohn L.E-tation to the MODIS Science Team /NASA/GSFC/925/MCST(MODIS Charatierization Support Team)r‘-19at the Plenary sessionof the Science Team Meeting 15 ApTalk#7Macllci File 15APR92.MCSTSci.27:004/,.,92?2

MCST-Related MODIS Scene Simulation ActivitiesDesired Properties of the Simulated Data SetsBe derivable conveniently,cost-effectivelyand in a timely mannerCover the spectral, radiometric, geometric, field-of-view, temporaland other operational ranges of the MODIS instruments, includingtypical or pseudo-realistic cases, andlimiting or extreme casesBe structured for parametric sensitivity studies to readily reveal behavioralcharacteristics of system under considerationAllow scene modification/creationfor unanticipated needsProvide for easy validation against well understood existing real datasets(the simulated data correspondence principle)Be complete enough to allow for stressing all pathways in the softwareMCST Presentation to the MODIS Science TeamJohn L,Batkcr /NASA/GSFC/925/MCST(MODIS Characterization Support Team)Page-20at the Plenary sessionof the %icnce Team Meeting 15 April 1992Titlk#7Macllci File 15APR92.MCSTSci.27:004/15/92

MCST-Related MODIS Scene Simulation ActivitiesApproach to Simulating Data SetsSynthetically and theoretically derived structured scenesWell defined geometric patterns of pure pixels to facilitate error analysisGroups of pixels possessing artificially defined statistical distributionse.g. areas of given mean radiance and deviationwith along track gradient, cross track gradient, etc.Fractal generated scenes for representative studiesScenes derived empirically from existing data setsLandsat TM, AVHRR, AVARIS, MAS, etc.UNIX-based PRA shell for simulation activitiesthat includes modifiable sections for thesource of irradiancesceneatmosphereinstrumentMCST Pre-- tation to the MODIS Science TeamJohn L,Bi./NASA/GSFC/92.5/MCST(MODIS Characterization Support Team)p21at the Plenary session of the Science Team Meeting 15 AptTalk#7Macllci File 15APR92,MCSTSci.27:00‘24/ 1-, 32

Radiance at ToP of Atmosphere fromLOWTRAN7 Output-- 976 US Stakdard Atmosphere23Km Visibility -- 1.125 g/cm**2 Water VaporTotal, Reflected and Path-806040200I!J.4{1. ().6().7WiiVCICl) lllI{efleclnnce().U().9I(Il]icrt}lllelcrs) ().10MCST Pre ntation to the MODIS science TeamJohn L.Barker /NASA/GSFC/925/MCST(MODIS Characterization Support Team)Page-22at the Plenary session of the Science Team Meeting 15 April 1992Talk#7Macllci Filw 15APR92.MCSTSci.27:004/15/92

Radiance at Top of Atmosphere Derived fromMCST Spreadsheet ModelTotal, -Reflected and Path1098765“432100.4—I—0.5(6-- “-----------0.70.81.00.9Wavelength in micronsMCST Pre- ‘tation to the MODIS %ence TeamJohn L.BL/NASA/GSFC/925/MCST(MODIS CharadenzationPSupport Team)23at the Plenary session of the Science Team Meeting 15 Apr’.Talk#7Macllci File: 15APR92,MCSTSci.27(X)4/1.‘2J2

MODIS Simulation of 500m 1.6pm Bandfrom Landsat Thematic Mapper Imagew of Chugach, AlaslcaITM lJalIci 5 (1.55 -1.75 }iIn) (28.51n)Page-24hlCST Presentation to the MODIS Sci;nce “l”camJohtt L. Batkcr /NAsA/CSFC/925/MCST(MODIS Characterization SUpFtiTeam)at the Pfcnary session of the Science Team hfccting 15 April 1992Talk#7Macllci File: 15APR92.MC5TSci.27:004/15/92

MODIS/MCSTFeedback Sheeton MODIS Calibration Handbook and MODIS Characterization/CalibrationQuestions ?PlanConcerns ?Suggestions ?Actions for Next Meeting?Name:Date:For E-mail correspondence address GSFCmail:JBarker or BGrant.For updates on the latest events and available documents, CHECK MCST.BBbulletin board on GSFCmail.MCST Prewntation to the MODIS Science TeamJohn L.f3arker /NASA/GSFC/92S/MCST(MODIS Characterization SuppttPage-26Team)at the Plenary smsion of the Science Team Mcctin 15 April 1992Taik#7Macllc{ Filc 15APK92.MC T%I,27;00 4/15/92

MCST (MODIS Characterization Support Team) John L.Barker,Head 301/286-9498or GSFCmail: JBarkcr JoannM.K. Harnden 301/286-4133or GSFCMail:JHarndcn Code 925-Sensor Development and Characterization Branch StevenG. Ungar 301 /2864007 or GSFCmail: SUngar BrianL.Markham 301 /286-5240 or GSFCmail: BMarkham Code 923-Biospheric Sciences Branch

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