Post on 19-Aug-2020
TThheePPllaannkkttoonn,,AAeerroossooll,,CClloouudd,,oocceeaannEEccoossyytteemm ((PPAACCEE))mmiissssiioonn::
SSttaattuuss,,sscciieennccee,,aaddvvaanncceess
JJeerreemmyyWWeerrddeellllPACEProjectScientist,NASAGoddardSpaceFlightCenter
21March2018@theSun-ClimateSymposium
2
cloudfraction
oceanchlorophyllnormalizedlandvegetationindex
aerosolopticalthickness
1997-20101978-1986 1999-present 2002-present 2012-present
BBrrooaaddllyyssppeeaakkiinngg,,PPAACCEEhhaassttwwooffuunnddaammeennttaallsscciieenncceeggooaallss::
(1) Extendkeysystematicoceancolor,aerosol,&cloudclimatedatarecords
(2) Addressnew&emergingsciencequestionsusingitsadvancedcapabilities
WWhhaattiiss““oocceeaannccoolloorr””??
thespectraldistributionofreflectedsunlightcanbeusedtoinferthecontentsofthewater
clear water sediment-rich water
Rrs
(l)
colorSpectral Wavelength (l)
Wat
er R
efle
ctan
ce
32018Sun-ClimateSymposium jeremy.werdell@nasa.gov
ABSORPTION(a)
SCATTERING(bb)
AIR
SEA
Water-leavingRadiance,Lw
Therearetwopossiblethingsthatcanhappentoaphotoninwater
Measurementsofoceancolorarebasedonelectromagneticenergyemittedbysunlight,transmittedthroughatmosphere,andreflected byEarth’ssurface.
Phytoplankton
Detritus
OrganicMatter
400 500 600 700
400 500 600 700
400 500 600 700
400 500 600 700
400 500 600 700
OOcceeaannccoolloorrddaattaapprroodduuccttss
diffuselightattenuation(waterclarity,turbidity)
particlebackscattering(sedimentload)
chlorophyll-a(algalbiomass)
dissolvedorganicmatterabsorption(runoff)
redlightreflectance(sedimentload)
ratio of blue:greenradiances
chlo
roph
yll-a
(mg
m-3
)
and,manyothers,including:phytoplanktoncommunitycomposition(includingHABs)particlesizedistributions(watercomposition)particulate(in)organiccarbon(productivity)euphoticdepth(visibility,waterclarity)watertemperature(MODIS,VIIRS)
62018Sun-ClimateSymposium jeremy.werdell@nasa.gov
MMiissssiioonncchhaarraacctteerriissttiiccss
7
CY21CY20CY19CY18
Instrument(s)CDR(s)
ObservatoryI&T
CY22 CY23 CY24
Decommission
CY25
SpacecraftCDR
LaunchFall2022
PhaseC PhaseD PhaseEPhaseB PhaseF
KKeeyyMMiissssiioonnEElleemmeennttss
Missionmanagement NASAGoddardSFCOceanColorInstrument NASAGoddardSFCHARP2polarimeter U.MarylandBaltimoreCountySPEXonepolarimeter SRON(Netherlands)Spacecraft/MissionOps NASAGoddardSFCSciencedataprocessing OceanBiologyProcessingGroupCompetedscienceteams NASAEarthSciencesDivision
KKeeyyMMiissssiioonnFFeeaattuurreess
Cost Directed,DTC,$805MLife 3-yr,ClassC,10-yrfuelOrbit 676.5km,Sunsync,1-pmMLTANCoverage(OCI) 2-dayglobalRFCommunication Kadirecttoground,600MbpsScienceTeam 2019-2022+2023-2025(ROSES)Cal/ValTeam 2018/19-2021+2022-2025(ROSES)
2018Sun-ClimateSymposium jeremy.werdell@nasa.gov
LLooookkiinnggffoorrwwaarrdd::tthheemmiissssiioonn’’ssccoommiinnggyyeeaarr((ss))
8
PPhhaasseeBB– preliminarydesign&technologycompletion
PPhhaasseeCC– finaldesign&fabricationPPhhaasseeDD– systemassembly,integration&testing,&launchPPhhaasseeEE – scienceoperations
• July2017– Q22019• AllmissionelementsmustpassPreliminaryDesignReviews(PDR)• Precededbyseriesofsub-elementEngineeringPeerReviews(EPRs)
• Project&HQScience+OBPGScienceDataProcessing:• respondtoelementissues(study,charge/retreat,providetherapy)• buildsciencecapabilities(plansforcal,val,algs,processing,documentation,etc.)
2018Sun-ClimateSymposium jeremy.werdell@nasa.gov
CY21CY20CY19CY18 CY22 CY23 CY24 CY25
PhaseC PhaseD PhaseEPhaseB PhaseF
MMoovviinnggffrroommmmuullttii--ssppeeccttrraallrraaddiioommeettrryyttoossppeeccttrroossccooppyy
92018Sun-ClimateSymposium jeremy.werdell@nasa.gov
LindaArmbrecht,abc.com.au
JoaquimGoes,LDEO
signalsfromtheoceanaresmall&differentiatingbetweenconstituentsrequiresadditionalinformationrelativetowhatwehavetoday
Examplediatom
ExampleNoctiluca
1mm
fluorescence
10
Makenewglobalmeasurementsofoceancolorthatareessentialforunderstandingtheglobalcarboncycle&oceanecosystemresponsestoachangingclimate
Collectglobalobservationsofaerosol&cloudproperties,focusingonreducingthelargestuncertaintiesinclimate&radiativeforcingmodelsoftheEarthsystem
Improveourunderstandingofhowaerosolsinfluenceoceanecosystems&biogeochemicalcyclesandhowoceanbiological&photochemicalprocessesaffecttheatmosphere
Sunglint
Imagestripes
Absorbingaerosols
Darkoceanvs.brightland&clouds
Differentalgalgroups
Variedcontrasts
Variedopticalproperties
Variedaltitudes
Extend keysystematicocean biological,ecological,&biogeochemicalclimatedatarecords,aswellascloud &aerosol climatedatarecords
GSDof1± 0.1km2 atnadir
Tilt± 20o
Spectralrangefrom350-865@5nm 940,1038,1250,1378,1615,2130,2260nm
Spectralrangegoalof320-865@5nm
Twice-monthlylunarcalibration&onboardsolarcalibration(daily,monthly,dim)
Instrumentperformancerequirements
RReeqquuiirreeddsscciieenncceeddaattaapprroodduuccttss((OOCCII))
11
Requireddataproducts&additionalexpecteddataproducts:
Buildingcapabilitiestoproduce thisfullsuiteofOCIproductsfromproxydatausing preliminary/heritage algorithmsbytheendof2018
Water-leavingreflectance Aerosolopticalthickness
Chlorophyll-a Aerosol finemodefraction
Phytoplanktonabsorption Liquid /icecloudopticalthickness
NAP+CDOMabsorption Liquid/icecloudeffectiveradius
Particulatebackscattering Cloudlayerdetection (𝜏𝜏 <0.3)
Diffuse attenuation Cloudtoppressure(𝜏𝜏 >3)
Fluorescencelineheight Shortwaveradiationeffect
LLeevveell11rreeqquuiirreedd((~~tthhrreesshhoolldd))pprroodduuccttss
2018Sun-ClimateSymposium jeremy.werdell@nasa.gov
AAddvvaanncceedd&&eevvaalluuaattiioonnsscciieenncceeddaattaapprroodduuccttss
12
Requireddataproducts&additionalexpecteddataproducts:
Carbonstocks& fluxes Liquid /icecloudwaterpath
Phytoplankton pigments Polarimeter-specificproducts
Phytoplanktonphysiology Appliedsciences-specificproducts
Community structure(PFTs) Landdataproducts(TBD)
Productivity YourveryfavoritedataproductthatPAR,lightattenuation,waterquality Iforgottolist(soplzdon’task)
IInnccoommpplleetteelliissttooffaaddvvaanncceedd((~~bbaasseelliinnee))pprroodduuccttss
GGeenneerraall eexxppeeccttaattiioonnssffoorrffuuttuurreePPAACCEEsscciieenncceetteeaammss:• Novel methodsforrequiredproducts(exploitspectralcapabilities)• Methodsforadvancedproducts+scientificapplications
2018Sun-ClimateSymposium jeremy.werdell@nasa.gov
OOCCIIaattmmoosspphheerriicciimmpprroovveemmeennttssoovveerrhheerriittaaggee
13
Higherspatialresolutionthanmanyheritageproducts
UV+oxygen-Abandstoestimateconcentrations&absorptionmagnitudes,notjustanindex
VIIRSRGB+OMPSAerosolIndex
Two2-µmbandsimproveretrievalsofcloudthermodynamicphase
PACEbandsVIIRSbands
Deeperredindicatesimprovedprobabilityofdetectionoficephase
PPoollaarriimmeettrryyoonnPPAACCEE
14
SSppeeccttrroo--PPoollaarriimmeetteerrffoorrPPllaanneettaarryyEExxpplloorraattiioonn((SSPPEEXXoonnee))ContributionfromtheNetherlands(SRON,NSO,Airbus;TNOoptics)POC:OttoHasekamp
HHyyppeerrAAnngguullaarrRRaaiinnbboowwPPoollaarriimmeetteerr((HHAARRPP--22))ContributionfromUniversityofMarylandBaltimoreCountyPOC:VanderleiMartins
TTwwooccuubbeessaatt--ssiizzeeddccoonnttrriibbuutteedd iinnssttrruummeennttss
SSPPEEXXoonnee HHAARRPP--22
Spectralrange(resolution) 385-770nm(hyperspectral2nm) 440,550,670nm(10)+870nm(40nm)#viewingangles 5(-52o,-20o,0o,20o,52o) 20for440,550,870nm+60for670nm(114o)Swathwidth 9o (100km) 94o (1550km)Groundsampledistance 2.5km2 3km2
Heritage AirSPEX AirHARP,cubesatHARPforISS
Hyperspectral(UV)+narrowswath
Hyperangular+wideswath
2018Sun-ClimateSymposium jeremy.werdell@nasa.gov
OOCCII--ppoollaarriimmeettrryyssyynneerrggyy
15
SSppeeccttrroo--PPoollaarriimmeetteerrffoorrPPllaanneettaarryyEExxpplloorraattiioonn((SSPPEEXXoonnee))• Excellentforaerosolcharacterization• AddressesaerosolclimateobjectivesbeyondthoserequiredofOCI
HHyyppeerrAAnngguullaarrRRaaiinnbboowwPPoollaarriimmeetteerr((HHAARRPP--22))• Excellentforclouddropletsizeandiceparticleshape/roughnessretrievals• ProvidescloudcapabilitiesbeyondthoserequiredofOCI• Wideswath~matchesOCI,offeringpotentiallyimprovedatmosphericcorrection
OOCCII++SSPPEEXXoonnee++HHAARRPP--22• Hyperspectral+hyperangular+highlyaccurateradiometric&polarimetric
observations=fargreaterinformationcontentthananycurrentinstrumentsuiteforoceancolor,aerosol,&cloudobservations
• Newdataproducts:oceancolorfrommulti-anglepolarimetry,windspeed,etc.2018Sun-ClimateSymposium jeremy.werdell@nasa.gov
AApppplliieeddSScciieenncceess
16
MissionPhase ApplicationsActivity
Pre-phaseA• Assessmentofthecommunityofpractice.• DescriptionofpotentialapplicationsfromthePACEdatausingthe
requirementsestablishedbytheScienceDefinitionTeam(SDT).
PhaseA
• Applicationswebsiteestablishment.• Databaseofusercommunityindividualsbegins.• ApplicationsPlanwrittenandpostedtowebsite.• Applicationswhitepapersdevelopedandpostedtothewebsite.• ApplicationsTraceabilityMatricesdevelopedandpostedtothewebsite.• ApplicationsWorkingGroupestablished.
PhaseB
• Workshopconductedwithtargetedsciencecommunitiestocommunicatekeymodel,observationandAppliedSciencesopportunitiesandrequirements.
• Newsletters,articles,posters,andothercommunicationsdevelopedtoexpandthecommunityofpotential.
• EarlyAdoptersProgramestablished.
PhaseC/D
• AnnualworkshopfocusedonresultsfromEarlyAdopters.• Descriptionofvalidationdatasetstothecommunityofpractice.• Conferencepresentationsandpapers;newslettersandjournalarticles
onuserinteractiontoexpandthecommunityofpotential.• Dataworkshops,shortcourses,focussessions,tutorials.• InteractionwithNASAHQAppliedSciencestopreparefunding
opportunities.
PhaseE
• Documentingdecisionsupportprovidedbymissiondata.• Newsletter,journalarticles,conferencepresentationsofapplicationsof
data.• Communityinteractionandsupportofdatareprocessingand
improvement.Calibration/validationofdataquality,format,issues.• ConductImpactWorkshoptoassesssuccessofApplications
implementation.• ConductaQuantitativePACEDataSocietalBenefitValueAssessment.• InformationforSeniorReviewSubmissions.
NNeewwaaggeennccyyddiirreeccttiivveeoonnAApppplliieeddSScciieenncceesswwiitthhiinnmmiissssiioonnss
2018Sun-ClimateSymposium jeremy.werdell@nasa.gov
TTaakkeehhoommeemmeessssaaggeess
Spatial Spectral* Temporal DetectorsVIIRS 750m
global7bandsfrom412 – 865nm
1.24, 1.61,2.25µm2-day
nadirviewmultiple
16– rotatingtelescope
OLCI/Sentinel-3 300mglobal
21programmablebandsfrom400– 1020nm
3-daynadirview
multiplepushbroom
OLI/Landsat-8/9MSI/ Sentinel-2
10 - 60mcoastal
5-9bandsfrom443– 865 nm1.60,2.20µm
16-daynadirview
multiplepushbroom
PACE 1000mglobal
>114 bandsfrom320 – 885nm1.04,1.25, 1.61,2.13,2.26µm
2-day±20° tilt
single1 – rotatingtelescope
*onlybandsusedforoceancolorshown
17
Theoceancolorinstrumentconceptprovidesaleapforwardincapabilitiesfortheoceancolorcommunity;byitself,itwillprovideawealthofinformationnotcurrentlyavailableorplannedtobecomeavailable
PACEisunlikeanyotheroceancolormissionplannedinthe2020’sbyanyagency;itfillsasubstantialvoid:
Polarimetryprovidesaleapforwardincapabilitiesfortheatmosphericcommunity– italsoprovidesabenefittotheoceancolorcommunity,makingthecombinationofinstrumentsamajorcontributiontoscience
2018Sun-ClimateSymposium jeremy.werdell@nasa.gov
LLeeaarrnnmmoorreeaabboouuttPPAACCEE
hhttttppss::////ppaaccee..ggssffcc..nnaassaa..ggoovv@@NNAASSAAOOcceeaann((TTwwiitttteerr))@@NNAASSAA..OOcceeaann((FFaacceebbooookk))TTeecchhnniiccaallMMeemmoo..sseerriieess
TThhaannkkyyoouu..QQuueessttiioonnss??
WWhhoo’’sswwoorrkkiinnggoonnPPAACCEE((aassooffeeaarrllyyFFeebb22001188))??
21
FranceAirbus[SPEXone]
NetherlandsSRON[SPEXone]TNO[PrimaryMirror]
AlaskaArticSlopeRegionalCorporation[Support]
VirginiaMoogInc[Bearings]ScienceApplicationsInternationalCorp[Support]TRAXInternationalCorp[Support]
MarylandSupportContractsAlcyonTechnicalServicesARESTechnicalServicesATAAerospaceBusinessIntegraINCKBRwyleTechnologySolutionLLCTridentVantageSystemsLLC
Genesis[Avionics]UniversityofMaryland,BaltimoreCounty[HARP2]
ColoradoAviorControlTechnologiesInc[OCIRotationMotors]Cobham[Avionics]
ArkansasBEIPrecisionSystemsandSpaceCompany[Encoders]
NewHampshireCorning[PrimaryMirror][BackEndOptics]
CaliforniaIrvineElectronics[Avionics]SemiconductorTechnologyAssociatesInc[CCDs]Teledyne[CCDs]
ArizonaAdvancedCircuits[Avionics]
Minnesota4th AccessMachining[Avionics]
TexasSouthwestResearch[Avionics]
UtahSpaceDynamicsLaboratory[SWIRAOB]
the
first
PAC
Esc
ienc
ete
am(2
014-
2017
)
2018Sun-ClimateSymposium jeremy.werdell@nasa.gov
OOcceeaannCCoolloorrIInnssttrruummeenntt–– pphhyyssiiccaallaasssseemmbbllyy
22
Cross-trackrotatingtelescopewith± 56.5o fieldofregard
2(UV-VIS&VIS-NIR)slitgratinghyperspectralspectrographs
CCoonncceeppttffoolllloowwsstthheehheerriittaaggeeoofftthheeSSeeaaWWiiFFSS,,MMOODDIISS,,aannddVVIIIIRRSS
NIR-SWIRfibercoupledmultibandfilterspectrographs
Solarcalibrationassembly
RadiatorEarthshield
Startrackers
Radiators
Data,control,&interfaceunits
270kg,315W,13Mbpsupto40Mbps(CBEs)
2018Sun-ClimateSymposium jeremy.werdell@nasa.gov
OOcceeaannCCoolloorrIInnssttrruummeenntt((OOCCII))–– ssiiggnnaall--ttoo--nnooiissee((SSNNRR))
232018Sun-ClimateSymposium jeremy.werdell@nasa.gov
MMuullttii--aanngglleeppoollaarriimmeetteerr((ss))oonnPPAACCEE
24
SSppeeccttrraallrraannggee• Whilethetotalintensityreflectedbylandsurfaceshasconsiderablespectral
variation,polarizedintensitydoesnot.Awidespectralbaselineisneededtoperformaccurateaerosolretrievalsoverland.
• UVtocharacterizeaerosolabsorptionwouldcomplimentOCI’sUVsensitivity.SSwwaatthhwwiiddtthh• Abroad,OCI-matchingswathisneededtoprovideatmosphericcorrectionforthe
entiretyoftheOCIobservation.AAnngguullaarrrraannggee• Awideviewanglerangeobservesscatteringanglesessentialforaerosolsizeand
complexrefractiveindexretrieval.PPoollaarriimmeettrriiccaaccccuurraaccyy• HighaccuracyneededforbestaerosolandcloudretrievalsNNuummbbeerrooffvviieewwiinnggaanngglleess• Roughly5anglesneededforaccurateaerosolretrievals• Characterizationoficecloudcrystalshape(AspectRatio- AR)androughnessrequires
~10angles.Determinationofliquidclouddropletsizerequires40-60viewangles.
FFoorrmmuullttii--aanngglleeppoollaarriimmeettrriiccoobbsseerrvvaattiioonnssttoobbeebbeenneeffiicciiaallffoorraaeerroossoollaannddcclloouuddcchhaarraacctteerriizzaattiioonnaannddaattmmoosspphheerriiccccoorrrreeccttiioonntthheeyynneeeeddtthheeffoolllloowwiinnggccaappaabbiilliittiieess::
Exampleatmosphericaerosols,particlesthathaveawiderangeofsizes,shapesandchemicalcompositions.
2018Sun-ClimateSymposium
LLooookkiinnggffoorrwwaarrdd::nnootteewwoorrtthhyymmeennttiioonnss
25
BBuuddggeettSSttaattuuss::FFYY1188aannddbbeeyyoonndd((aassooffeeaarrllyyFFeebb22001188))• “ThePresident’s2018Budgetrequests$19.1billionforNASA,a0.8percent
decreasefromthe2017annualizedCRlevel…forESD:$1.8B,down$102M,orca5%cutfrom2017annualizedCRlevel.”
• FY18President’sBudgetidentifiedterminationoffivemissions:OCO-3,DISCOVR,PACE,CLARREOPathfinder,RBI,NASA’sOfficeofEducation,andareductiontoESDresearch(firststepinbudgetprocess)
22001177--22002277DDeeccaaddaallSSuurrvveeyyffoorrEEaarrtthhSScciieenncceeaannddAApppplliiccaattiioonnssffrroommSSppaaccee• Freedownload:http://sites.nationalacademies.org/DEPS/ESAS2017/index.htm• ProgramofRecord– “Theseriesofexistingorpreviouslyplannedobservations,
whichshouldbecompletedasplanned.ExecutionoftheESAS2017recommendationrequiresthatthetotalcosttoNASAoftheProgramofRecordflightmissionsfromFY18-FY27becappedat$3.6B.”
2018Sun-ClimateSymposium jeremy.werdell@nasa.gov
LLooookkiinnggFFoorrwwaarrdd::PPAACCEESScciieenncceeTTeeaammpprree--llaauunncchh&&ppoosstt--llaauunncchhsscchheedduullee
PPrree--llaauunncchhSScciieenncceeTTeeaammss• FY15– 17:ROSES2013A.25
• Achievedconsensusanddevelopscommunity-endorsedpathsforwardforIOPsandAtmosphericCorrection
• FY19– 22:ROSES2019(4years)• Allowleadtimeforscientificalgorithmdevelopment&applicationsdevelopmentpriortolaunch• InitiatesinterfacebetweeninstrumentdevelopersandOBPG;OBPG/OBDAACandalgorithmdevelopers;
possibleLaRCDAACforpolarimetry(notyetdecided)• FY23– 25:ROSES2022(3years)
• Pre-launchalgorithmsandpost-launchcompetedscience/applicationsforoceancolorinstrument’saerosol,cloud,oceanscience,plusaerosolandcloudsfrompolarimeters
PPoosstt--llaauunncchhCCoommppeetteeddSScciieennccee-- ooppttiioonnss• CompetedthroughROSES2025• Afterlaunch,jointfundingbetweenEOSproject,R&A,andPACEmissionbudget,exploringadditionalfunding
fromAppliedSciences• Missioncontributions(manyTBDs)• Continueduringmissionextensions
2018Sun-ClimateSymposium jeremy.werdell@nasa.gov 26
LLooookkiinnggffoorrwwaarrdd::vviiccaarriioouussccaalliibbrraattiioonn
27
2018 2019 2020 2021 2022 2023
today launchoneyearsite&systemcharacterization
oneyeartestdeployment,mistakes,etc.
?
options:systemsindevelopment,expectedexternalassets(e.g.,MOBY,BOUSSOLE),FRM4SOC,otherinsitusources,models
RROOSSEESS22001144AA..33OOBBBB((FFYY1155--1177))-- wwrriitttteennaannddccoommppeetteeddbbeeffoorreePPAACCEEwwaassaarreeaallmmiissssiioonn� IssuedunderOBB,managedjointlybetweenOBBandESTO
� Allowedleadtimeforconceptstomaturepriortolaunch+Identifiedtechnicaldevelopmentneeds/risksfortheapproachesselected
� Threeprojectsfundedthatarecompletinganalysisandtestingofhardware:
� Hyperspectralradiometricdeviceforaccuratemeasurementsofwaterleavingradiancefromautonomousplatformsforsatellitevicariouscalibrations- PI– AndrewBarnard,SeaBirdScientific
� Hybrid-spectralAlternativeforRemoteProfilingofOpticalObservationsforNASASatellites(HARPOONS)- PI– CarlosDelCastillo,NASAGSFC
� DevelopingaMOBY-NETinstrument,suitableforafederationnetworkforVicariousCalibrationofOceanColorSatellitesPerformcal/valduringmissionoperations- PI– KenVoss,UniversityofMiami
� RROOSSEESS22001188oorr22001199-- SSeelleeccttbbeessttaapppprrooaacchhaannddhhaarrddwwaarree((pprree--llaauunncchh))oorrffuurrtthheerrrriisskkrreedduuccttiioonnoonniinnssttrruummeennttaattiioonn,,iiffnneeeeddeedd,,ffoorrvviiccaarriioouussccaalliibbrraattiioonnooffoocceeaannccoolloorrddaattaapprroodduuccttss..
LLooookkiinnggffoorrwwaarrdd::aavvaalliiddaattiioonnpprrooggrraamm
28
UncertaintyrequirementsaccompanyallL1req’ddataproducts(i.e.,weneedquantitativevalidationofalloftheseproducts)
2018 2019 2020 2021 2022 2023
today
launchoneyearofpractice(VIIRS)
twoyearsforsystemdevelopment,datasource
identifications,etc.
ongoingvalidation
Water-leavingreflectance Aerosolopticalthickness
Chlorophyll-a Aerosol finemodefraction
Phytoplanktonabsorption Liquid /icecloudopticalthickness
NAP+CDOMabsorption Liquid/icecloudeffectiveradius
Particulatebackscattering Cloudlayerdetection (𝜏𝜏 <0.3)
Diffuse attenuation Cloudtoppressure(𝜏𝜏 >3)
Fluorescencelineheight Shortwaveradiationeffect
FFYY1199–– 2211::RROOSSEESS22001188oorr22001199((33--44yyeeaarrss))
• Selectsbestapproachandhardware(pre-launch)orfurtherriskreductiononinstrumentation,ifneeded,forvalidationofalldataproducts(aerosol,cloud,oceancolor)– insitu;Calibration/validationofpolarimetrydataproducts(TBD)
FFYY2222–– 2255::RROOSSEESS22002211oorr22002222((44yyeeaarrss))
• Performcal/valduringmissionops;Includesairborneandinsitumeasurements;Continueeveryyearduringmissionextension(s)
• Internationalcommunity(EUMETSAT,ESA,andtheCopernicusProgram)areinvestinginFiducialReferenceMeasurementsforSentinelandcoordinationiscritical
LLeevveell11rreeqquuiirreedd((~~tthhrreesshhoolldd))pprroodduuccttss