Tsigaridis, Kanakidou, Daskalakis...

Kostas!Tsigaridis,!Maria!Kanakidou,!Nikos!Daskalakisand!the!AEROCOM!team

10/30/2011 Kostas!Tsigaridis,!Columbia!University/NASA!GISS 1

20092009

! CAM"Oslo Alf!Kirkevåg! GISS!MATRIX* Susanne!Bauer! GISS!modelE* Kostas!Tsigaridis,!Dorothy!Koch! GLOMAP** Graham!Mann! SPRINTARS! Toshi!Takemura! TM3! Kostas!Tsigaridis,!Maria!Kanakidou! TM4"ECPL* Nikos!Daskalakis,!Maria!Kanakidou! Measurements Lynn!Russell!and!many!others

Preliminary!results

Results!not!analyzed!yet

20102010

! Maria!Kanakidou,!Lazaros!Perakis,!Kostas!Tsigaridis!(TM3)

! Maria!Kanakidou,!Stelios!Myriokefalitakis,!Nikos!Daskalakis!(TM4"ECPL)

! Dorothy!Koch,!Surabi!Menon,!Kostas!Tsigaridis!(GISS!modelE,!GISS!modelE!+!MATRIX)

! AEROCOM!modelers! Alf!Kirkevåg!(CAM"Oslo)! Angela!Benedetti!(ECMWF)! Kirstie!Pringle,!Jos!Lelieveld!(EMAC)! Gabriele!Curci!(GEOS"Chem)! Shantanu!Jathar,!Peter!Adams!(GISS!II’ UBS)

! Graham!Mann!(GLOMAP)! Thomas!Diehl!(GOCART)! Toshi!Takemura!(SPRINTARS)

! Measurements! Lynn!Russell,!Ranjit!Bahadur! Jose"Luis!Jimenez,!Qi!Zhang,!Sally!Ng

! Jean!Sciare! Nikos!Mihalopoulos! Jose!Prospero !Denis!Savoie

20112011

Total!number!of!models:!27Total!number!of!models:!2727

2!more!models!are!expected:!IMPACT!(3!versions)!and!INCA

FactsFacts! Year(s)!simulated:!Mostly!2006,!but!not!always!with!2006!emissions!and/or!meteorology.

! Focus!on!surface!concentrations,!at!least!for!now.! Emissions!vary!greatly.!This!is!not!necessarily!bad.! OM/OC is!1.4 for!most!models,!but!not!all.

What!does!2006!mean?What!does!2006!mean?

891011

12131415

18192021

222324252627

Year!other!than!2006Year!other!than!2006,!calculated!onlineYear!2006,!calculated!onlineYear!2006Not!availableUncertain

1 2 3 4 5 6 7 8 9 10 11 12 13 14Meteo ??? ??? ???

FF,!BF ??? ???

15 16 17 18 19 20 21 22 23 24 25 26 27Meteo

FF,!BF ??? ???

BB ???

CtrSOC

Isop ???

Terp ??? ???

What!does!2006!mean?What!does!2006!mean?

Primary!Organic!Matter!(POM)Primary!Organic!Matter!(POM)

! All!models!have!fossil!fuel,!biofuel!and!biomass!burning!terrestrial!sources!(tPOM).!GISS"CMU"VBS!assumes!semivolatile!tPOM.!CAM4"Oslo,!GISS"modelE!and!TM4"ECPL!also!include!marine!POM!(mPOM).! Fossil!fuel!and!biofuel:!Bond!et!al.!(2004;!2007);!Diehl!et!al.!(2008);!Lamarque!et!al.!(2010);!Dentener!et!al.!(2006);!Park!et!al.,!2003;!CIRCE.

! Biomass!burning:!GFED!(v1;!v2;!v3);!Diehl!et!al.!(2008);!Dentener!et!al.!(2006);!Lamarque!et!al.!(2010).

! Marine!sources:!CAM4"Oslo,!GISS"modelE,!TM4"ECPL.

Secondary!Organic!Matter!(SOM)Secondary!Organic!Matter!(SOM)Almost!all!models!have!some!SOM!representation:

! None:!1!model!(BCC).! trSOM:!26!models

! Non"volatile:!13!models;!SOM!is!included!in!tPOM.! A!yield!from!terpenes!emissions!(CAM4"Oslo,!CanAM"PAM,!ECHAM5"SALSA,!ECMWF"GEMS,!EMAC,!GISS"MATRIX,!GMI,!GOCART,!SPRINTARS,!TM5)

! A!yield!from!terpenes!oxidation!(GISS"TOMAS,!2!GLOMAP!versions)! Semi"volatile:!13!models;!“traditional” SOM,!trSOM.

! A!yield!from!terpenes!emissions!(CAM5"MAM3)! Fixed!3D!monthly!climatology!(HadGEM2,!climatology!from!STOCHEM)! 2"product!model!(GEOS"Chem,!GEOS"Chem"APM,!2!GISS"modelE!versions,!

IMAGES,!MPIHAM"v2,!OsloCTM2,!3!TM4"ECPL!versions)! Volatility"basis!set!(GISS"CMU"VBS)

! ntrSOM!(Glyoxal,!from!cloud!and!aerosol!water!chemistry):!4!models(IMAGES,!3!TM4"ECPL!versions)

! MSA!(from!DMS!oxidation):!9!models!(CAM4"Oslo,!GEOS"Chem"APM,!2!GISS"modelE!versions,!3!TM4"ECPL!versions,!TM5)

Mean!model!surface!distributionMean!model!surface!distribution

Median!vs.!individual!models!(1x1!grid)Median!vs.!individual!models!(1x1!grid)

Primary!Organic!Matter!(POM)Primary!Organic!Matter!(POM)

Textor!et!al.!(2006)!mean:96.6Tg!a"1

±26%(includes!19.1Tg!a"1

non"volatile!SOM)

Secondary!Organic!Matter!(SOM)Secondary!Organic!Matter!(SOM)

Possible!precursors!Isoprene,!monoterpenes!Higher!terpenes!Aromatics!Higher!alkanes,!alkenes

Dry!depositionDry!deposition

Wet!depositionWet!deposition

BurdenBurden

Textor!et!al.!(2006)!mean:1.70Tg!±27%

Aerosol!Optical!Depth!(AOD)!550nmAerosol!Optical!Depth!(AOD)!550nm

OA!life!cycleOA!life!cycle

Organic!Carbon!(OC)!– PM 2.5

Organic!Carbon!(OC)!– PM2.5

Bahadur!et!al.,!2009

Organic!Carbon!(OC)Organic!Carbon!(OC)

Pindado!et!al.,!2009Ward!et!al.,!2004Koulouri!et!al.,!2008Li!et!al.,!2009He!et!al.,!2004Salma!et!al.,!2004Graham!et!al.,!2003Sciare!et!al.,!2009Fuzzi!et!al.,!2007Gatari!and!Boman,!2002Smith!et!al.,!1996Zappoli!et!al.,!1999Chow!et!al.,!1994Hueglin!et!al.,!2005Kim!et!al.,!2005Ho!et!al.,!2004Fan!et!al.,!2004Eatough!et!al.,!2001;!2003Long!et!al.,!2003Sawant!et!al.,!2004Kim!et!al.,!2000Jeong!et!al.,!2004Artaxo!et!al.,!2002Balasubramanian!et!al.,!2003Xu!et!al.,!2004Krivacsy!et!al.,!2001Shakya!et!al.,!2010

Comparison!with!OC!measurementsComparison!with!OC!measurements

Organic!Matter!(OM)!– PM 1

Organic!Matter!(OM)!– PM1

Zhang!et!al.,!2007

Comparison!with!OM!measurementsComparison!with!OM!measurements

SeasonalitySeasonality

Almost!identical!correlationsAlmost!identical!correlations

FinokaliaFinokalia

Huge!peaksHuge!peaks

Nice!performanceNice!performance

HawaiiHawaii

Amsterdam!IslandAmsterdam!Island

Alta!Floresta,!BrazilAlta!Floresta,!Brazil

Concluding!remarksConcluding!remarks! Large!model!diversity.! In!general!models!underestimate measurements,!especially!during!winter.

! Remote!stations!are!better!captured!compared!to!urban!and!marine!ones.

! A!condensed!(and!updated?)!version!of!this!presentation!is!scheduled!for!IAMA!(Davis)!and!AGU!(SF)!this!December.

! A!paper!is!under!preparation.!At!least!two!others!are!planned.

Tsigaridis, Kanakidou, Daskalakis...

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