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ClaireB.
Paris*1,MatthieuLeHénaff1,2,ZacharyM.
Aman3,AjitSubramaniam4,JudithHelgers1,5,Dong-PingWang6,VassilikiH.
Kourafalou1AshwanthSrinivasan1,5EvolutionoftheMacondowellblowout:simulatingtheeffectsofthecirculationandsyntheticdispersantsonthesubseaoiltransportSupportingInformation14pages,1table,5figures.
1VerticalvelocityofthehydrodynamicmoduleSelf-consistentverticalcomponentswwereestimatedofinebasedonthecontinuityequation.
Weuseddailycurrentvelocity(u,v)tocomputehorizontaldivergences(div):(S1)Fromthedivergence,theverticalvelocitycanbeestimated:(S2)Wecalculateddivatalllevels(z-coordinate)andcomputedwbyintegratingfromthebottomupusingtheboundaryconditionw=0atthebottom.
DropletSizeCalculationsForamixedwaterandhydrocarbonsystem,themeanparticlesizemaybedeterminedbyacorrelationbyBoxall1,wherethedropletsizeisdeterminedbasedonacomparisontothesmallestturbulenteddiesinow.
EquationS3isusedwhenthemeandropletsizeisgreaterthanthesmallesteddies(i.
e.
,ontheKolmogorovlengthscale),whileEquationS4isusedwhenthemeandropletsizeisontheorderoftheKolmogorovlength-scale.
DParticle=C1DFlowEv2DFlow3/5(S3)DParticle=C2DFlowEvDFlowE1Ev2DFlow1/2(S4)2whereDParticleisthemeandispersedparticlediameter,C1andC2areempiricalcoefcients1,DFlowisthediameteroftheowpath(i.
e.
,estimateddiameterofinitialblowout),ρEffistheeffectivedensityoftheoilandwatermixture,vistheowingvelocity,μEffistheeffectiveviscosityoftheoilandwatermixture,andγisthewater-oilinterfacialtension.
Thecorrelationwasvalidatedforwaterdispersingintohydrocarbonphasesofvaryingviscosities,aslowas1.
3cP.
Thistechniqueisusedtoprovideanexperimentally-validatedorder-of-magnitudeestimateofmeanhydrocarbondropletsizedispersingintowater.
Speculationonlarger(i.
e.
,millimeter-scale)dropletsizesreliesonmacroscopicestimatesofrisetimeasafunctionofdropletbuoyancy;suchacalculationapproachmayassumeconstancyofthermophysicalproperties(e.
g.
,specicvolumeofthehydrocarbonstreams)overawiderangeofhydrostaticpressure.
ThegascompositionmeasuredbyReddyetal.
2suggestspecicvolumeincreasebytwoordersofmagnitudewhengasisreleasedat1500mwaterdepth.
Thisphenomenaisfurthercomplicatedbydissolutionoflighterhydrocarbonsintothesurroundingwaterphase,whichwilldecreasebuoyancy.
Macroscopically,theinitialrisetimeofthreehours3withahypothetical1-1.
5mmparticlediameter3,4requiresparticlespecicgravitytoexceed0.
95,whichwedonotbelievetobeacorrectassumption.
SensitivityAnalysesandModelEvaluationDepthprolesofoil-productsdensitywerenotsensitivetotherangeofoildensities(FigureS1)butweredrivenbyparticlesizes(FigureS2).
Particles>200msurfaceinlessthanafewdays,mostofparticles200m).
Thelargerparticlesrisefaster.
Aconeofoilgrowsfromthewellhead,swayingwiththecurrents,andspurtspacketsofsmallblueparticlesmovingwestwardatdepth.
ThisisalsoobservedinDOdeficit(Figure3).
AfterJuly1,somesmallparticles(blue)riseintotheDeSotocanyon14andtheformationofstratifiedplumesisevident13.
70100200300400500600700800050010001500NumberofparticlesDepth(m)July15,20100100200300400500600700800050010001500NumberofparticlesDepth(m)August16,2010860820840a.
b.
FigureS1.
Sensitivityofparticledensityonverticaldistribution:a)depthprofileoftotaloilparticles(1-300μm)fordifferentoildensity(0.
82-0.
96kg.
m-3)inJuly15,2010andb)inAugust16,2010.
Thedepthdistributionofmodeledoilcorroboratetoobservations6-8.
8FigureS2.
Effectofparticlesizeonrisingtimeandresidencetimeatdepth.
Timetoreachthesurfaceasafunctionofparticlesizefromareleaseof12000particlesonJuly15,2010.
Densityofoilparticleswassetto0.
85kg.
m-3.
Particles>200μmsurfaceinlessthanafewdaysandparticles70μm,(c,d)particlediameterrangingbetween40-70μm,and(e,f)particlediameter70mc.
40-70mb.
>70md.
40-70mf.
<40mNDNDNDWDWDverticalbinsintegratedhorizontallyovertheentiremodeldomainoftheGoM-HYCOM(e.
g.
,representstheglobaloilmassinthebasinratherthanatasingleprofile)andthecolorgradientdepictstheproportionoftotalmasspresentdailyforeachcategoryofparticlesizerange.
OilflowingfromtheMacondoblowoutissimulatedbyreleasing1000particlesevery2hoursfromApril20toJuly15;themagentalinemarksJuly15,2010whenthewellheadwascapped.
TheoilparticlestransportandfatewerefurthertrackeduntilOctober5.
ThisfigureissimilartoFigure4,buttheoilparticlesaremovedintheverticalbytheirbuoyancyUTalone(i.
e.
,inertialmotion,Expt_1),i.
e.
,theverticalvelocitycomponentwofthecurrentisnottakenintoaccount.
ThedifferentslopesafterJuly15threflecttherisingspeedsofthevaryingoildropletsizes.
Particlessmallerthan40μmareessentiallyneutrallybuoyantanconstrainedtodeepwaters.
ThemajordifferencefromFigure4isthattherearenoparticlesbelowthereleasedepthoftheoilparticles(intrusiondepthof1200m),sinceparticlesareonlysubjectedtopositivebuoyancyforces(nosubductionorupwelling).
12FigureS5.
Observations-Modelcomparison:a)Observationoffluorescence(greenline)andDO(blackline)profilesfromCTDcastinMay31,2010onR/VBrooksMcCallCruiseMay5toJune1,2010,andb)simulateddensityprofileofoilonMay31,2010computedforallpossiblelocationsintheGulfofMexico.
Inbothobservednear-fielddistributionandmodeledfar-fielddistributions,theoilmaximumisbetween1100-1300mdepth,alsoinagreementwithKessleretal.
12andReddyetal.
2.
13ReferencesofAssociatedContent(1)Boxall,J.
HydratePlugFormationfrom<50%WaterContentWater-in-OilEmulsions.
Ph.
D.
Thesis.
ColoradoSchoolofMines.
Golden,CO,2009.
(2)Reddy,C.
M;Arey,S.
;Seewald,J.
S.
;Sylva,S.
P.
;Lemkau,K.
L.
;Nelson,R.
K.
;Carmichael,C.
A.
;McIntyre,C.
P.
;Fenwik,J.
;Ventura,G.
T.
;VanMooy,B.
A.
S.
;Camilli,R.
CompositionandfateofgasandoilreleasedtothewatercolumnduringtheDeepwaterHorizonoilspill,PANS,doi:10.
1073/pnas.
1101242108,2011(3)Ryerson,T.
B.
,Camilli,R.
,Kessler,J.
D.
,Kujawinski,E.
B.
,Reddy,C.
M.
,Valentine,D.
L.
,Atlas,E.
Blake,D.
R.
,deGouw,J,Meinardi,S.
,Parrish,D.
D.
,Peischl,J.
,Seewald,J.
S.
andWarneke,C.
ChemicaldataquantifyDeepwaterHorizonhydrocarbonflowrateandenvironmentaldistribution,PNAS,2012doi:10.
1073/pnas.
1110564109.
(4)Chen,F.
andYapa,P.
D.
EstimatingtheOilDropletSizeDistributionsinDeepwaterOilSpills,JournalofHydraulicEngineering2007133:197-207.
(5)Talaia,M.
A.
R.
Terminalvelocityofabubbleriseinaliquidcolumn,WorldAcademyofScience,EngineeringandTechnology200728.
(6)Joye,S.
A.
etal.
/Brooks_McCall_Cruise_552010_to_612010.
pfd,SeaGrantReport,June2010.
(7)Diercks,A.
R.
;Highsmith,R.
C.
;Asper,V.
L.
;Joung,D.
;Guo,L.
;Zhou,Z.
;Shiller,A.
M.
;Joye,S.
B.
;Teske,S.
P.
;Lohrenz,S.
E.
CharacterizationofsubsurfacepolycyclicaromatichydrocarbonsattheDeepwaterHorizonsite,Geophys.
Res.
Lett.
201037,L20602,doi:10.
1029/2010GL045046.
14(8)Kujawinski,E.
B.
;KidoSoule,M.
C.
;Valentine,D.
L.
;Boysen,A.
K.
;Longnecker,K.
;Redmond,M.
C.
FateofdispersantsassociatedwiththeDeepwaterHorizonOilSpill,Environ.
Sci.
Technol.
,2011dx.
doi.
org/10.
1021/es103838p.
(9)Zheng,L.
;Yapa,P.
D.
;Chen,F.
H.
AModelforSimulatingDeepwaterOilandGasBlowouts-PartI:TheoryandModelFormulation.
J.
Hydr.
Res.
2003,41(4),339-351.
(10)Camilli,R.
;Reddy,C.
M.
;Yoerger,D.
R.
;VanMooy,B.
A.
S.
;Jakuba,M.
V.
;Kinsey,J.
C.
;McIntyre,C.
P.
;Sylva,S.
P.
;Maloney,J.
V.
TrackingHydrocarbonPlumeTransportandBiodegradationatDeepwaterHorizon.
Science2010DOI:10.
1126/science.
1195223.
(11)Kessler,J.
D.
,Valentine,D.
L.
,Redmond,M.
C.
,Du,M.
,Chan,E.
W.
,Mendes,S.
D.
,Quiroz,E.
W.
Villanueva,C.
J.
,Shusta,S.
S.
,Werra,L.
M.
,Yvon-Lewis,S.
A.
,Weber,T.
C.
ApersistentoxygenanomalyrevealsthefateofmethaneinthedeepGulfofMexico,ScienceExpress20111199697.
(12)Joye,S.
B.
;etal.
2011Commenton"APersistentOxygenAnomalyRevealstheFateofSpilledMethaneintheDeepGulfofMexico",Science,2011332(6033):1033(13)Valentine,D.
L.
,Kessler,J.
D.
,Redmond,M.
C.
,Mendes,S.
D.
,Heinzt,M.
B.
,Farwell,C.
Hu,L.
,Kinnaman,F.
S.
,Yvon-Lewis,S.
,Du,M.
,Chan,E.
W.
,Tigreros,F.
G.
,andVillanueva,C.
J.
Propanerespirationjump-startsmicrobialresponsetoadeepoilspill,ScienceExpress,Science.
2010330,208.
(14)Hollander,D.
"http://www.
mcclatchydc.
com/2010/07/23/98088/researchers-confirm-subsea-gulf.
html""ResearchersconfirmsubseaGulfoilplumesarefromBPwell".
McClatchyNewspapers,S.
Kennedy23July(2010).
15(15)Hamilton,P.
TopographicRossbywavesintheGulfofMexico,Progr.
Oceanogr.
,82,1-31(2009).
(16)Srinivasan,A.
;Helgers,J.
;Paris,C.
B.
;LeHénaff,M.
;Kang,H.
;Kourafalou,V.
,Iskandarani,M.
;Thacker,W.
C.
;Zysman,J.
P.
;Tsinoremas,N.
F.
;Knio,O.
M.
ManytaskcomputingformodelingthefateofoildischargedfromtheDeepwaterHorizonwellblowout,Proceedingsofthe3rdIEEEWorkshoponMany-TaskComputingonGridsandSupercomputers2010.
(17)Wiener,N.
Thehomogeneouschaos,Amer.
J.
Math.
193860:897-936.
16

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