| 1 | ! |
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| 2 | ! $Id: calcaerosolstrato_rrtm.F90 4293 2022-10-04 19:42:41Z abarral $ |
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| 3 | ! |
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| 4 | SUBROUTINE calcaerosolstrato_rrtm(pplay,t_seri,paprs,debut) |
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| 5 | |
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| 6 | USE phys_state_var_mod, ONLY: tau_aero_sw_rrtm, piz_aero_sw_rrtm, cg_aero_sw_rrtm, tau_aero_lw_rrtm |
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| 7 | USE phys_local_var_mod, ONLY: mdw, tausum_aero, tausum_strat, tau_strat_550, tau_strat_1020, stratomask |
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| 8 | USE aero_mod |
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| 9 | USE dimphy |
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| 10 | USE temps_mod |
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| 11 | USE YOMCST |
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| 12 | |
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| 13 | IMPLICIT NONE |
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| 14 | |
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| 15 | INCLUDE "dimensions.h" |
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| 16 | INCLUDE "clesphys.h" |
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| 17 | INCLUDE "paramet.h" |
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| 18 | INCLUDE "iniprint.h" |
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| 19 | |
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| 20 | ! Variable input |
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| 21 | REAL,DIMENSION(klon,klev),INTENT(IN) :: t_seri ! Temperature |
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| 22 | REAL,DIMENSION(klon,klev),INTENT(IN) :: pplay ! pression pour le mileu de chaque couche (en Pa) |
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| 23 | LOGICAL,INTENT(IN) :: debut ! le flag de l'initialisation de la physique |
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| 24 | REAL,DIMENSION(klon,klev+1),INTENT(IN) :: paprs ! pression pour chaque inter-couche (en Pa) |
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| 25 | |
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| 26 | ! Stratospheric aerosols optical properties |
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| 27 | REAL, DIMENSION(klon,klev,nbands_sw_rrtm) :: tau_strat, piz_strat, cg_strat |
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| 28 | REAL, DIMENSION(klon,klev,nwave_sw+nwave_lw) :: tau_strat_wave |
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| 29 | REAL, DIMENSION(klon,klev,nbands_lw_rrtm) :: tau_lw_abs_rrtm |
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| 30 | |
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| 31 | INTEGER k, band, wave, i |
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| 32 | REAL zrho, zdz |
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| 33 | |
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| 34 | !--calculate optical properties of the aerosol size distribution from tr_seri |
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| 35 | tau_strat=0.0 |
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| 36 | piz_strat=0.0 |
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| 37 | cg_strat=0.0 |
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| 38 | tau_strat_wave=0.0 |
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| 39 | tau_lw_abs_rrtm=0.0 |
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| 40 | |
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| 41 | CALL miecalc_aer(tau_strat, piz_strat, cg_strat, tau_strat_wave, tau_lw_abs_rrtm, paprs, debut) |
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| 42 | |
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| 43 | !!--test CK: deactivate radiative effect of aerosol |
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| 44 | ! tau_strat=0.0 |
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| 45 | ! piz_strat=0.0 |
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| 46 | ! cg_strat=0.0 |
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| 47 | ! tau_strat_wave=0.0 |
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| 48 | ! tau_lw_abs_rrtm=0.0 |
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| 49 | |
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| 50 | !--test CK: deactivate SW radiative effect of aerosol (but leave LW) |
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| 51 | ! tau_strat=0.0 |
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| 52 | ! piz_strat=0.0 |
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| 53 | ! cg_strat=0.0 |
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| 54 | |
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| 55 | ! DO wave=1, nwave_sw |
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| 56 | ! tau_strat_wave(:,:,wave)=0.0 |
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| 57 | ! ENDDO |
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| 58 | |
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| 59 | !--test CK: deactivate LW radiative effect of aerosol (but leave SW) |
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| 60 | ! tau_lw_abs_rrtm=0.0 |
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| 61 | |
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| 62 | ! DO wave=nwave_sw+1, nwave_sw+nwave_lw |
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| 63 | ! tau_strat_wave(:,:,wave)=0.0 |
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| 64 | ! ENDDO |
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| 65 | |
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| 66 | !--total vertical aod at the 5 SW + 1 LW wavelengths |
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| 67 | DO wave=1, nwave_sw+nwave_lw |
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| 68 | DO k=1, klev |
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| 69 | tausum_aero(:,wave,id_STRAT_phy)=tausum_aero(:,wave,id_STRAT_phy)+tau_strat_wave(:,k,wave) |
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| 70 | ENDDO |
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| 71 | ENDDO |
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| 72 | |
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| 73 | !--weighted average for cg, piz and tau, adding strat aerosols on top of tropospheric ones |
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| 74 | DO band=1, nbands_sw_rrtm |
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| 75 | !--no stratospheric aerosol in index 1 |
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| 76 | cg_aero_sw_rrtm(:,:,1,band) = cg_aero_sw_rrtm(:,:,2,band) |
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| 77 | piz_aero_sw_rrtm(:,:,1,band) = piz_aero_sw_rrtm(:,:,2,band) |
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| 78 | tau_aero_sw_rrtm(:,:,1,band) = tau_aero_sw_rrtm(:,:,2,band) |
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| 79 | |
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| 80 | !--tropospheric and stratospheric aerosol in index 2 |
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| 81 | cg_aero_sw_rrtm(:,:,2,band) = ( cg_aero_sw_rrtm(:,:,2,band)*piz_aero_sw_rrtm(:,:,2,band)*tau_aero_sw_rrtm(:,:,2,band) + & |
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| 82 | cg_strat(:,:,band)*piz_strat(:,:,band)*tau_strat(:,:,band) ) / & |
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| 83 | MAX( piz_aero_sw_rrtm(:,:,2,band)*tau_aero_sw_rrtm(:,:,2,band) + & |
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| 84 | piz_strat(:,:,band)*tau_strat(:,:,band), 1.e-15 ) |
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| 85 | piz_aero_sw_rrtm(:,:,2,band)= ( piz_aero_sw_rrtm(:,:,2,band)*tau_aero_sw_rrtm(:,:,2,band) + & |
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| 86 | piz_strat(:,:,band)*tau_strat(:,:,band) ) / & |
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| 87 | MAX( tau_aero_sw_rrtm(:,:,2,band) + tau_strat(:,:,band), 1.e-15 ) |
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| 88 | tau_aero_sw_rrtm(:,:,2,band)= tau_aero_sw_rrtm(:,:,2,band) + tau_strat(:,:,band) |
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| 89 | ENDDO |
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| 90 | |
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| 91 | DO band=1, nbands_lw_rrtm |
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| 92 | !--no stratospheric aerosols in index 1 |
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| 93 | tau_aero_lw_rrtm(:,:,1,band) = tau_aero_lw_rrtm(:,:,2,band) |
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| 94 | !--tropospheric and stratospheric aerosol in index 2 |
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| 95 | tau_aero_lw_rrtm(:,:,2,band) = tau_aero_lw_rrtm(:,:,2,band) + tau_lw_abs_rrtm(:,:,band) |
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| 96 | ENDDO |
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| 97 | |
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| 98 | WHERE (tau_aero_sw_rrtm .LT. 1.e-14) piz_aero_sw_rrtm=1.0 |
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| 99 | WHERE (tau_aero_sw_rrtm .LT. 1.e-14) tau_aero_sw_rrtm=1.e-15 |
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| 100 | WHERE (tau_aero_lw_rrtm .LT. 1.e-14) tau_aero_lw_rrtm=1.e-15 |
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| 101 | |
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| 102 | tausum_strat(:,:)=0.0 |
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| 103 | DO i=1,klon |
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| 104 | DO k=1,klev |
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| 105 | IF (stratomask(i,k).GT.0.5) THEN |
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| 106 | tausum_strat(i,1)=tausum_strat(i,1)+tau_strat_wave(i,k,2) !--550 nm |
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| 107 | tausum_strat(i,2)=tausum_strat(i,2)+tau_strat_wave(i,k,5) !--1020 nm |
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| 108 | tausum_strat(i,3)=tausum_strat(i,3)+tau_strat_wave(i,k,6) !--10 um |
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| 109 | ENDIF |
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| 110 | ENDDO |
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| 111 | ENDDO |
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| 112 | |
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| 113 | DO i=1,klon |
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| 114 | DO k=1,klev |
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| 115 | zrho=pplay(i,k)/t_seri(i,k)/RD !air density in kg/m3 |
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| 116 | zdz=(paprs(i,k)-paprs(i,k+1))/zrho/RG !thickness of layer in m |
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| 117 | tau_strat_550(i,k)=tau_strat_wave(i,k,2)/zdz |
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| 118 | tau_strat_1020(i,k)=tau_strat_wave(i,k,5)/zdz |
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| 119 | ENDDO |
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| 120 | ENDDO |
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| 121 | |
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| 122 | END SUBROUTINE calcaerosolstrato_rrtm |
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