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《CAPRAM 2.4 (MODAC mechanism) An extended and condensedtropospheric aqueous phase mechanism and its applicationCAPRAM 2.4（MODAC機制）：擴展和濃縮 對流層水相機理及其應(yīng)用》由會員上傳分享，免費在線閱讀，更多相關(guān)內(nèi)容在學(xué)術(shù)論文-天天文庫。
1、JOURNALOFGEOPHYSICALRESEARCH,VOL.108,NO.D14,4426,doi:10.1029/2002JD002202,2003CAPRAM2.4(MODACmechanism):Anextendedandcondensedtroposphericaqueousphasemechanismanditsapplication123,4555B.Ervens,C.George,J.E.Williams,G.V.Buxton,G.A.Salmon,M.Bydder,56711,8F.Wilkinson,F.Dentener,P.
2、Mirabel,R.Wolke,andH.HerrmannReceived14February2002;revised3May2002;accepted14June2002;published29July2003.[1]Adetailedandextendedchemicalmechanismdescribingtroposphericaqueousphasechemistry(147speciesand438reactions)ispresentedhereasChemicalAqueousPhaseRadicalMechanism(CAPRAM)
3、2.4(MODACmechanism).Themechanismbasedontheformerversion2.3[Herrmannetal.,2000]containsextendedorganicandtransitionmetalchemistryandisformulatedmoreexplicitlybasedonacriticalreviewoftheliterature.TheaqueouschemistryhasbeencoupledtothegasphasemechanismRegionalAtmosphericChemistry
4、Modeling(RACM)[Stockwelletal.,1997],andphaseexchangeaccountedforusingtheresistancemodelofSchwartz[1986].Amethodforestimatingmassaccommodationcoefficients(a)isdescribed,whichaccountsforfunctionalgroupscontainedinaparticularcompound.Acondensedversionhasalsobeendevelopedtoallowthe
5、useofCAPRAM2.4(MODACmechanism)inhigher-scalemodels.Herethereproducibilityoftheconcentrationlevelsofselectedtargetspecies(i.e.,+NOx,S(IV),H2O2,NO3,OH,O3,andH)withinthelimitsof±5%wasusedasagoalforeliminatinginsignificantreactionsfromthecompleteCAPRAM2.4(MODACmechanism).Thishasbee
6、ndoneusingarangeofinitialconditionschosentorepresentdifferentatmosphericscenarios,andthisproducesarobustandconcisesetofreactions.Themostinterestingresultsareobtainedusingatmosphericconditionstypicalforanurbanscenario,andtheeffectsintroducedbyupdatingtheaqueousphasechemistryareh
7、ighlighted,inparticular,withregardtoradicals,redoxcyclingoftransitionmetalionsandorganiccompounds.Finally,thereducedschemehasbeenincorporatedintoaone-dimensional(1-D)marinecloudmodeltodemonstratetheapplicabilityofthismechanism.INDEXTERMS:0305AtmosphericCompositionandStructure:A
8、erosolsandparticles(0345,4801);0317AtmosphericComposit
