| 1 | ! |
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| 2 | ! $Id: so2_to_h2so4.F90 3677 2020-05-06 15:18:32Z fhourdin $ |
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| 3 | ! |
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| 4 | SUBROUTINE SO2_TO_H2SO4(pdtphys,tr_seri,t_seri,pplay,paprs,is_strato) |
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| 5 | |
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| 6 | USE dimphy, ONLY : klon,klev |
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| 7 | USE aerophys |
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| 8 | USE infotrac_phy |
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| 9 | USE YOMCST, ONLY : RG |
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| 10 | USE phys_local_var_mod, ONLY : SO2_lifetime, budg_3D_so2_to_h2so4, budg_so2_to_h2so4 |
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| 11 | |
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| 12 | IMPLICIT NONE |
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| 13 | |
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| 14 | !-------------------------------------------------------- |
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| 15 | |
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| 16 | ! transfer variables when calling this routine |
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| 17 | REAL,INTENT(IN) :: pdtphys ! Pas d'integration pour la physique (seconde) |
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| 18 | REAL,DIMENSION(klon,klev,nbtr),INTENT(INOUT) :: tr_seri ! Concentration Traceur [U/KgA] |
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| 19 | REAL,DIMENSION(klon,klev),INTENT(IN) :: t_seri ! Temperature |
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| 20 | REAL,DIMENSION(klon,klev),INTENT(IN) :: pplay ! pression pour le mileu de chaque couche (en Pa) |
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| 21 | REAL,DIMENSION(klon,klev+1),INTENT(IN) :: paprs ! pression pour chaque inter-couche (en Pa) |
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| 22 | LOGICAL,DIMENSION(klon,klev),INTENT(IN) :: is_strato ! stratospheric flag |
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| 23 | |
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| 24 | ! local variables in coagulation routine |
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| 25 | INTEGER :: i,j,k,nb,ilon,ilev |
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| 26 | |
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| 27 | !--convert SO2 to H2SO4 |
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| 28 | budg_3D_so2_to_h2so4(:,:)=0.0 |
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| 29 | budg_so2_to_h2so4(:)=0.0 |
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| 30 | |
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| 31 | DO ilon=1, klon |
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| 32 | DO ilev=1, klev |
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| 33 | !only in the stratosphere |
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| 34 | IF (is_strato(ilon,ilev)) THEN |
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| 35 | IF (SO2_lifetime(ilon,ilev).GT.0.0) THEN |
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| 36 | budg_3D_so2_to_h2so4(ilon,ilev)=tr_seri(ilon,ilev,id_SO2_strat)*(1.0-exp(-pdtphys/SO2_lifetime(ilon,ilev))) |
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| 37 | ENDIF |
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| 38 | tr_seri(ilon,ilev,id_SO2_strat)=tr_seri(ilon,ilev,id_SO2_strat) - budg_3D_so2_to_h2so4(ilon,ilev) |
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| 39 | tr_seri(ilon,ilev,id_H2SO4_strat)=tr_seri(ilon,ilev,id_H2SO4_strat) + mH2SO4mol/mSO2mol*budg_3D_so2_to_h2so4(ilon,ilev) |
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| 40 | !convert budget from kg(SO2)/kgA to kg(S)/m2/layer/s for saving as diagnostic |
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| 41 | budg_3D_so2_to_h2so4(ilon,ilev)=budg_3D_so2_to_h2so4(ilon,ilev)*mSatom/mSO2mol*(paprs(ilon,ilev)-paprs(ilon,ilev+1))/RG/pdtphys |
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| 42 | budg_so2_to_h2so4(ilon)=budg_so2_to_h2so4(ilon)+budg_3D_so2_to_h2so4(ilon,ilev) |
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| 43 | ENDIF |
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| 44 | ENDDO |
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| 45 | ENDDO |
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| 46 | |
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| 47 | END SUBROUTINE SO2_TO_H2SO4 |
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