| 1 | module aeropacity_mod |
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| 2 | |
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| 3 | implicit none |
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| 4 | |
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| 5 | contains |
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| 6 | |
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| 7 | Subroutine aeropacity(ngrid,nlayer,nq,pplay,pplev,zzlev,pt,pq, & |
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| 8 | dtau_aer,reffrad,nueffrad, QREFvis3d,QREFir3d,tau_col) |
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| 9 | |
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| 10 | use radinc_h, only : L_TAUMAX,naerkind |
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| 11 | use aerosol_mod, only: iaero_haze, i_haze |
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| 12 | USE tracer_h, only: noms,rho_n2,rho_ice,rho_q,mmol,micro_indx |
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| 13 | use comcstfi_mod, only: g, pi, mugaz, avocado |
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| 14 | use geometry_mod, only: latitude |
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| 15 | use callkeys_mod, only: kastprof, callmufi, callmuclouds |
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| 16 | use mp2m_diagnostics |
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| 17 | implicit none |
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| 18 | |
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| 19 | !================================================================== |
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| 20 | ! |
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| 21 | ! Purpose |
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| 22 | ! ------- |
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| 23 | ! Compute aerosol optical depth in each gridbox. |
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| 24 | ! |
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| 25 | ! Authors |
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| 26 | ! ------- |
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| 27 | ! F. Forget |
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| 28 | ! F. Montmessin (water ice scheme) |
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| 29 | ! update J.-B. Madeleine (2008) |
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| 30 | ! dust removal, simplification by Robin Wordsworth (2009) |
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| 31 | ! |
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| 32 | ! Input |
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| 33 | ! ----- |
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| 34 | ! ngrid Number of horizontal gridpoints |
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| 35 | ! nlayer Number of layers |
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| 36 | ! nq Number of tracers |
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| 37 | ! pplev Pressure (Pa) at each layer boundary |
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| 38 | ! pq Aerosol mixing ratio |
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| 39 | ! reffrad(ngrid,nlayer,naerkind) Aerosol effective radius |
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| 40 | ! QREFvis3d(ngrid,nlayer,naerkind) \ 3D extinction coefficients |
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| 41 | ! QREFir3d(ngrid,nlayer,naerkind) / at reference wavelengths |
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| 42 | ! |
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| 43 | ! Output |
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| 44 | ! ------ |
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| 45 | ! dtau_aer Aerosol optical depth in layer l, grid point ig |
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| 46 | ! tau_col Total column optical depth at grid point ig |
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| 47 | ! |
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| 48 | !======================================================================= |
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| 49 | |
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| 50 | INTEGER,INTENT(IN) :: ngrid ! Number of atmospheric columns |
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| 51 | INTEGER,INTENT(IN) :: nlayer ! Number of atmospheric layers |
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| 52 | INTEGER,INTENT(IN) :: nq ! Number of tracers |
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| 53 | REAL,INTENT(IN) :: pplay(ngrid,nlayer) ! Mid-layer pressure (Pa) |
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| 54 | REAL,INTENT(IN) :: pplev(ngrid,nlayer+1) ! Inter-layer pressure (Pa) |
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| 55 | REAL,INTENT(IN) :: zzlev(ngrid,nlayer) ! Altitude at the layer boundaries. |
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| 56 | REAL,INTENT(IN) :: pq(ngrid,nlayer,nq) ! Tracers (.../kg_of_air) |
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| 57 | REAL,INTENT(IN) :: pt(ngrid,nlayer) ! Mid-layer temperature (K) |
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| 58 | REAL,INTENT(OUT) :: dtau_aer(ngrid,nlayer,naerkind) ! Aerosol optical depth |
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| 59 | REAL,INTENT(IN) :: reffrad(ngrid,nlayer,naerkind) ! Aerosol effective radius |
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| 60 | REAL,INTENT(IN) :: nueffrad(ngrid,nlayer,naerkind) ! Aerosol effective variance |
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| 61 | REAL,INTENT(IN) :: QREFvis3d(ngrid,nlayer,naerkind) ! Extinction coefficient in the visible |
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| 62 | REAL,INTENT(IN) :: QREFir3d(ngrid,nlayer,naerkind) ! Extinction coefficient in the infrared |
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| 63 | REAL,INTENT(OUT) :: tau_col(ngrid) ! Column integrated visible optical depth |
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| 64 | |
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| 65 | real aerosol0, obs_tau_col_aurora, pm |
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| 66 | real pcloud_deck, cloud_slope |
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| 67 | |
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| 68 | real dp_strato(ngrid) |
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| 69 | real dp_tropo(ngrid) |
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| 70 | real dp_layer(ngrid) |
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| 71 | |
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| 72 | ! Microphysical tracers |
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| 73 | real sig |
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| 74 | real m0as(ngrid,nlayer) |
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| 75 | real m0af(ngrid,nlayer) |
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| 76 | real m0ccn(ngrid,nlayer) |
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| 77 | |
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| 78 | INTEGER l,ig,iq,iaer,ia |
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| 79 | |
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| 80 | LOGICAL,SAVE :: firstcall=.true. |
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| 81 | !$OMP THREADPRIVATE(firstcall) |
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| 82 | REAL CBRT |
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| 83 | EXTERNAL CBRT |
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| 84 | |
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| 85 | INTEGER,SAVE :: i_n2ice=0 ! n2 ice |
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| 86 | !$OMP THREADPRIVATE(i_n2ice) |
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| 87 | CHARACTER(LEN=20) :: tracername ! to temporarily store text |
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| 88 | |
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| 89 | real CLFtot |
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| 90 | integer igen_ice,igen_gas ! to store the index of generic tracer |
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| 91 | logical dummy_bool ! dummy boolean just in case we need one |
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| 92 | ! for venus clouds |
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| 93 | real :: p_bot,p_top,h_bot,h_top,mode_dens,h_lay |
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| 94 | |
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| 95 | ! identify tracers |
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| 96 | IF (firstcall) THEN |
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| 97 | ia =0 |
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| 98 | write(*,*) "Tracers found in aeropacity:" |
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| 99 | do iq=1,nq |
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| 100 | tracername=noms(iq) |
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| 101 | if (tracername.eq."n2_ice") then |
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| 102 | i_n2ice=iq |
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| 103 | write(*,*) "i_n2ice=",i_n2ice |
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| 104 | |
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| 105 | endif |
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| 106 | enddo |
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| 107 | |
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| 108 | firstcall=.false. |
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| 109 | ENDIF ! of IF (firstcall) |
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| 110 | |
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| 111 | |
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| 112 | ! --------------------------------------------------------- |
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| 113 | !================================================================== |
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| 114 | ! Haze aerosols |
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| 115 | !================================================================== |
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| 116 | |
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| 117 | if (iaero_haze.ne.0) then |
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| 118 | if (callmufi) then |
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| 119 | ! Convert intensive microphysical tracers to extensive [m-2] |
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| 120 | m0as(:,:) = pq(:,:,micro_indx(1)) * (pplev(:,1:nlayer) - pplev(:,2:nlayer+1)) / g |
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| 121 | m0af(:,:) = pq(:,:,micro_indx(3)) * (pplev(:,1:nlayer) - pplev(:,2:nlayer+1)) / g |
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| 122 | |
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| 123 | ! Spherical aerosols |
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| 124 | sig = 0.2 |
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| 125 | where ((m0as(:,:) >= 1e-8).and.(mp2m_rc_sph(:,:) >= 5e-9)) |
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| 126 | dtau_aer(:,:,1) = m0as(:,:) * QREFvis3d(:,:,1) * pi * mp2m_rc_sph(:,:)**2 * exp(2*sig**2) |
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| 127 | elsewhere |
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| 128 | dtau_aer(:,:,1) = 0d0 |
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| 129 | endwhere |
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| 130 | ! Fractal aerosols |
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| 131 | sig = 0.35 |
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| 132 | where ((m0af(:,:) >= 1e-8).and.(mp2m_rc_fra(:,:) >= 1e-8)) |
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| 133 | dtau_aer(:,:,2) = m0af(:,:) * QREFvis3d(:,:,2) * pi * mp2m_rc_fra(:,:)**2 * exp(2*sig**2) |
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| 134 | elsewhere |
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| 135 | dtau_aer(:,:,2) = 0d0 |
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| 136 | endwhere |
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| 137 | |
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| 138 | ! Cloud drops |
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| 139 | if (callmuclouds) then |
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| 140 | m0ccn(:,:) = pq(:,:,micro_indx(5)) * (pplev(:,1:nlayer) - pplev(:,2:nlayer+1)) / g |
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| 141 | sig = 0.2 |
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| 142 | where ((m0ccn(:,:) >= 1e-8).and.(mp2m_rc_cld(:,:) >= 5e-9)) |
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| 143 | dtau_aer(:,:,3) = m0ccn(:,:) * QREFvis3d(:,:,3) * pi * mp2m_rc_cld(:,:)**2 * exp(2*sig**2) |
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| 144 | elsewhere |
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| 145 | dtau_aer(:,:,3) = 0d0 |
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| 146 | endwhere |
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| 147 | endif ! end callmuclouds |
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| 148 | |
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| 149 | else |
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| 150 | do iaer = 1, naerkind |
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| 151 | ! 1. Initialization |
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| 152 | dtau_aer(1:ngrid,1:nlayer,iaer)=0.0 |
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| 153 | ! 2. Opacity calculation |
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| 154 | DO ig = 1, ngrid |
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| 155 | DO l = 1, nlayer-1 ! to stop the rad tran bug |
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| 156 | ! If fractal, radius doit etre equivalent sphere radius |
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| 157 | ! Eq. 2.37 - Madeleine's PhD (2011). |
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| 158 | aerosol0 = & |
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| 159 | ( 0.75 * QREFvis3d(ig,l,iaer) / & |
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| 160 | ( rho_q(i_haze) * reffrad(ig,l,iaer) ) ) * & |
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| 161 | ( pq(ig,l,i_haze) + 1.E-10 ) * & |
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| 162 | ( pplev(ig,l) - pplev(ig,l+1) ) / g |
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| 163 | aerosol0 = max(aerosol0,1.e-10) |
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| 164 | aerosol0 = min(aerosol0,L_TAUMAX) |
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| 165 | dtau_aer(ig,l,iaer) = aerosol0 |
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| 166 | ENDDO |
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| 167 | ENDDO |
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| 168 | !QREF est le meme dans toute la colonne par def si size uniforme |
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| 169 | !print*, 'TB17: QREFvis3d=',QREFvis3d(1,:,1) |
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| 170 | !print*, 'TB17: rho_q=',rho_q(i_haze) |
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| 171 | !print*, 'TB17: reffrad=',reffrad(1,:,1) |
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| 172 | !print*, 'TB17: pq=',pq(1,:,i_haze) |
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| 173 | !print*, 'TB17: deltap=',pplev(1,1) - pplev(1,nlayer) |
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| 174 | enddo ! end iaer = 1, naerkind |
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| 175 | endif ! end callmufi |
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| 176 | endif ! if haze aerosols |
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| 177 | |
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| 178 | ! -------------------------------------------------------------------------- |
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| 179 | ! Column integrated visible optical depth in each point (used for diagnostic) |
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| 180 | |
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| 181 | tau_col(:)=0.0 |
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| 182 | do iaer = 1, naerkind |
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| 183 | do l=1,nlayer |
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| 184 | do ig=1,ngrid |
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| 185 | tau_col(ig) = tau_col(ig) + dtau_aer(ig,l,iaer) |
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| 186 | end do |
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| 187 | end do |
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| 188 | end do |
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| 189 | |
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| 190 | do ig=1,ngrid |
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| 191 | do l=1,nlayer |
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| 192 | do iaer = 1, naerkind |
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| 193 | if(dtau_aer(ig,l,iaer).gt.1.e3)then |
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| 194 | print*,'WARNING: dtau_aer=',dtau_aer(ig,l,iaer) |
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| 195 | print*,'at ig=',ig,', l=',l,', iaer=',iaer |
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| 196 | print*,'QREFvis3d=',QREFvis3d(ig,l,iaer) |
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| 197 | print*,'reffrad=',reffrad(ig,l,iaer) |
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| 198 | endif |
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| 199 | end do |
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| 200 | end do |
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| 201 | end do |
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| 202 | |
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| 203 | do ig=1,ngrid |
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| 204 | if(tau_col(ig).gt.1.e3)then |
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| 205 | print*,'WARNING: tau_col=',tau_col(ig) |
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| 206 | print*,'at ig=',ig |
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| 207 | print*,'dtau_aer=',dtau_aer(ig,:,:) |
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| 208 | print*,'QREFvis3d=',QREFvis3d(ig,:,:) |
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| 209 | print*,'reffrad=',reffrad(ig,:,:) |
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| 210 | endif |
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| 211 | end do |
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| 212 | end subroutine aeropacity |
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| 213 | |
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| 214 | end module aeropacity_mod |
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