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WAUTELET Philippe
committed
!ORILAM_LIC Copyright 2007-2019 CNRS, Meteo-France and Universite Paul Sabatier
!ORILAM_LIC This is part of the ORILAM software governed by the CeCILL-C licence
!ORILAM_LIC version 1. See LICENSE, CeCILL-C_V1-en.txt and CeCILL-C_V1-fr.txt
!ORILAM_LIC for details.
WAUTELET Philippe
committed
!-----------------------------------------------------------------
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! ################################
MODULE MODI_AER_WET_DEP_KMT_WARM
!! ################################
!!
!
INTERFACE
!!
SUBROUTINE AER_WET_DEP_KMT_WARM(KSPLITR, PTSTEP, PZZ, PRHODREF, &
PRCT, PRRT, &
PRCS, PRRS, PSVT, PTHT, &
PPABST, PRGAER, PEVAP3D, KMODE, &
PDENSITY_AER, PMASSMIN, PSEA, PTOWN, &
PCCT, PCRT )
!
IMPLICIT NONE
INTEGER, INTENT(IN) :: KSPLITR ! Number of small time step
! integration for rain sedimendation
REAL, INTENT(IN) :: PTSTEP ! Time step
!
REAL, DIMENSION(:,:,:), INTENT(IN) :: PZZ ! Height (z)
REAL, DIMENSION(:,:,:), INTENT(IN) :: PRHODREF! Reference [kg/m3] air density
!
!
REAL, DIMENSION(:,:,:), INTENT(IN) :: PRCT ! Cloud water m.r. at t
REAL, DIMENSION(:,:,:), INTENT(IN) :: PRRT ! Rain water m.r. at t
REAL, DIMENSION(:,:,:,:), INTENT(INOUT) :: PSVT ! Tracer m.r. at t
!
REAL, DIMENSION(:,:,:), INTENT(IN) :: PRCS ! Cloud water conc derived from source term
REAL, DIMENSION(:,:,:), INTENT(IN) :: PRRS ! Rain water conc derifed from source term
REAL, DIMENSION(:,:,:), INTENT(IN) :: PEVAP3D ! Instantaneous 3D Rain Evaporation flux (KG/KG/S)
!
REAL, DIMENSION(:,:,:), INTENT(IN) :: PTHT !Potential temp
REAL, DIMENSION(:,:,:), INTENT(IN) :: PPABST ! [Pa] pressure
REAL, DIMENSION(:,:,:,:), INTENT(IN) :: PRGAER ! Aerosol radius (um)
INTEGER, INTENT(IN) :: KMODE ! Nb aerosols mode
REAL, DIMENSION(:,:,:,:), INTENT(IN) :: PDENSITY_AER ! Begin Index for aerosol in cloud
REAL, DIMENSION(:,:,:,:), INTENT(IN) :: PMASSMIN ! Aerosol mass minimum value
REAL, DIMENSION(:,:),OPTIONAL, INTENT(IN) :: PSEA ! Sea mask
REAL, DIMENSION(:,:),OPTIONAL, INTENT(IN) :: PTOWN ! Town mask
REAL, DIMENSION(:,:,:),OPTIONAL, INTENT(IN) :: PCCT ! Cloud water concentration
REAL, DIMENSION(:,:,:),OPTIONAL, INTENT(IN) :: PCRT ! Rain water concentration
!
END SUBROUTINE AER_WET_DEP_KMT_WARM
!!
END INTERFACE
END MODULE MODI_AER_WET_DEP_KMT_WARM
! ###############################################################
SUBROUTINE AER_WET_DEP_KMT_WARM (KSPLITR, PTSTEP, PZZ, &
PRHODREF, PRCT, PRRT, &
PRCS, PRRS, PSVT, PTHT, &
PPABST, PRGAER, PEVAP3D, KMODE, &
PDENSITY_AER, PMASSMIN, PSEA, PTOWN, &
PCCT, PCRT )
! ###############################################################
!
!!**** * - compute the explicit microphysical processes involved in the
!!*** * - wet deposition of aerosols species in mixed clouds
!!
!! PURPOSE
!! -------
!!
!! The purpose of this subroutine is to calculate the mass transfer
!! of aerosol species between cloud hydrometeors.
!!
!!
!!
!!** METHOD
!! ------
!! Aerosols mass are dissolved into the cloud water and rain
!! drops, it is subject to transfer through the microphysical processes
!! that affect the parent hydrometeor [Rutledge et al., 1986].
!! Aerosol mass transfer has been computed using scavenging coefficient
!! and brownian nucleation scavenging coefficient (Seinfeld and Pandis,
!! 1998; Tost et al, 2006).
!!
!! The sedimentation rate is computed with a time spliting technique and
!! an upstream scheme, written as a difference of non-advective fluxes.
!!
!! KMODE: Number of aerosol modes (lognormal, bin..)
!! PSVT : 1 => KMODE : dry aerosol mass
!! PSVT : KMODE+1 => 2*KMODE : aerosol mass in cloud
!! PSVT : 2*KMODE+1 => 3*KMODE: aerosol mass in rain
!!
!! EXTERNAL
!! --------
!! None
!!
!!
!! IMPLICIT ARGUMENTS
!! ------------------
!! Module MODD_CST
!! XP00 ! Reference pressure
!! XRD,XRV ! Gaz constant for dry air, vapor
!! XMD,XMV ! Molecular weight for dry air, vapor
!! XCPD ! Cpd (dry air)
!!
!! REFERENCE
!! ---------
!!
!! AUTHOR
!! ------
!! P. Tulet & K. Crahan-Kaku * CNRM *
!!
!! Based on rain_ice.f90 and ch_wet_dep_kmt_warm.f90
!! from C. Mari & J.P. Pinty * LA*
!!
!!
!! MODIFICATIONS
!! -------------
!! Original 09/05/07
WAUTELET Philippe
committed
! P. Wautelet 26/04/2019: replace non-standard FLOAT function by REAL function
! P. Wautelet 28/05/2019: move COUNTJV function to tools.f90
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!-------------------------------------------------------------------------------
!
!* 0. DECLARATIONS
! ------------
!
USE MODD_CST
USE MODD_RAIN_ICE_PARAM
USE MODD_RAIN_ICE_DESCR
USE MODD_PRECIP_n
USE MODI_AER_VELGRAV
USE MODI_AER_EFFIC
USE MODI_GAMMA
!
IMPLICIT NONE
!
!* 0.1 Declarations of dummy arguments :
!
INTEGER, INTENT(IN) :: KSPLITR ! Number of small time step
! integration for rain sedimendation
REAL, INTENT(IN) :: PTSTEP ! Time step
!
REAL, DIMENSION(:,:,:), INTENT(IN) :: PZZ ! Height (z)
REAL, DIMENSION(:,:,:), INTENT(IN) :: PRHODREF! Reference [kg/m3] air density
!
REAL, DIMENSION(:,:,:), INTENT(IN) :: PRCT ! Cloud water m.r. at t
REAL, DIMENSION(:,:,:), INTENT(IN) :: PRRT ! Rain water m.r. at t
REAL, DIMENSION(:,:,:,:), INTENT(INOUT) :: PSVT ! Tracer m.r. at t
!
REAL, DIMENSION(:,:,:), INTENT(IN) :: PRCS ! Cloud water m.r. from source term
REAL, DIMENSION(:,:,:), INTENT(IN) :: PRRS ! Rain water m.r. from source term
REAL, DIMENSION(:,:,:), INTENT(IN) :: PEVAP3D ! Instantaneous 3D Rain Evaporation flux (KG/KG/S)
!
REAL, DIMENSION(:,:,:), INTENT(IN) :: PTHT ! Potential temp
REAL, DIMENSION(:,:,:), INTENT(IN) :: PPABST ! [Pa] pressure
REAL, DIMENSION(:,:,:,:), INTENT(IN) :: PRGAER ! Aerosols radius (um)
INTEGER, INTENT(IN) :: KMODE ! Nb aerosols mode
REAL, DIMENSION(:,:,:,:), INTENT(IN) :: PDENSITY_AER ! Begin Index for aerosol in cloud
REAL, DIMENSION(:,:,:,:), INTENT(IN) :: PMASSMIN ! Aerosol mass minimum value
REAL, DIMENSION(:,:),OPTIONAL, INTENT(IN) :: PSEA ! Sea mask
REAL, DIMENSION(:,:),OPTIONAL, INTENT(IN) :: PTOWN ! Town mask
REAL, DIMENSION(:,:,:),OPTIONAL, INTENT(IN) :: PCCT ! Cloud water concentration
REAL, DIMENSION(:,:,:),OPTIONAL, INTENT(IN) :: PCRT ! Rain water concentration
!
!* 0.2 Declarations of local variables :
!
INTEGER :: JK ! Vertical loop index for the rain sedimentation
INTEGER :: JN ! Temporal loop index for the rain sedimentation
INTEGER :: JJ ! Loop index for the interpolation
!
REAL :: ZTSPLITR ! Small time step for rain sedimentation
!
REAL, DIMENSION(:,:), ALLOCATABLE :: ZEFC !efficiency factor [unitless]
!
!Declaration of Dust Variables
!
INTEGER :: ICLOUD, IRAIN
! Case number of sedimentation, T>0 (for HEN)
! and r_x>0 locations
LOGICAL, DIMENSION(SIZE(PSVT,1),SIZE(PSVT,2),SIZE(PSVT,3)) &
:: GRAIN, GCLOUD ! Test where to compute all processes
! Test where to compute the SED/EVAP processes
REAL, DIMENSION(SIZE(PSVT,1),SIZE(PSVT,2),SIZE(PSVT,3)) &
:: ZW, ZZW1, ZZW2, ZZW4 ! work array
REAL, DIMENSION(SIZE(PSVT,1),SIZE(PSVT,2),SIZE(PSVT,3)) &
:: ZWEVAP ! sedimentation fluxes
REAL, DIMENSION(SIZE(PSVT,1),SIZE(PSVT,2),SIZE(PSVT,3)+1) &
:: ZWSED ! sedimentation fluxes
REAL, DIMENSION(SIZE(PSVT,1),SIZE(PSVT,2),SIZE(PSVT,3)) :: ZLBDAR
! Slope parameter of the raindrop distribution
REAL, DIMENSION(SIZE(PSVT,1),SIZE(PSVT,2),SIZE(PSVT,3)) &
:: ZZRCT, ZZEVAP, ZMASK
REAL, DIMENSION(SIZE(PSVT,1),SIZE(PSVT,2),SIZE(PSVT,3)) &
:: ZRAY, & ! Mean radius
ZNRT, & ! Number of rain droplets
ZLBC , & ! XLBC weighted by sea fraction
ZFSEDC
REAL, DIMENSION(SIZE(PSVT,1),SIZE(PSVT,2)) :: ZCONC_TMP
REAL, DIMENSION(SIZE(PSVT,1),SIZE(PSVT,2),SIZE(PSVT,3)) :: ZCONC
REAL, DIMENSION(SIZE(PSVT,1),SIZE(PSVT,2),SIZE(PSVT,3)) :: ZRRS
!
REAL, DIMENSION(:,:), ALLOCATABLE :: ZSVT ! Tracer m.r. concentration
!
REAL, DIMENSION(:,:), ALLOCATABLE :: ZVGG, ZDPG !aerosol velocity [m/s], diffusivity [m2/s]
REAL, DIMENSION(:,:), ALLOCATABLE :: ZRG !Dust R[µm]
REAL, DIMENSION(:,:), ALLOCATABLE :: ZCOR !Cunningham correction factor [unitless]
REAL, DIMENSION(:,:), ALLOCATABLE :: ZMASSMIN ! Aerosol mass minimum value
REAL, DIMENSION(:,:), ALLOCATABLE :: ZDENSITY_AER ! Aerosol density
!
REAL, DIMENSION(:), ALLOCATABLE &
:: ZRHODREF, & ! RHO Dry REFerence
ZTHT, & ! Potential temp
ZPABST, & ! Pressure [Pa]
ZZW, & ! Work array
ZTEMP, & ! Air Temp [K]
ZRC, & ! Cloud radius [m]
ZRCT, & ! Cloud water
ZRR, & ! Rain radius [m]
ZNT, & ! Rain droplets number
ZRRT, & ! Rain water
ZMU,ZMUW, & ! viscosity aerosol, water [Pa s]
ZFLUX, & ! Effective precipitation flux (kg.m-2.s-1)
ZCONC1D, & ! Weighted droplets concentration
ZWLBDC, & ! Slope parameter of the droplet distribution
ZGAMMA ! scavenging coefficient
REAL, DIMENSION(:), ALLOCATABLE :: ZW1 ! Work arrays
REAL, DIMENSION(SIZE(XRTMIN)) :: ZRTMIN
INTEGER :: JL ! and PACK intrinsics
!
INTEGER :: JKAQ, JSV
!
REAL :: A0, A1, A2, A3 ! Constants for computing viscocity
INTEGER :: IKE
!
!-------------------------------------------------------------------------------
!
!* 0. Initialize work array
! ---------------------
!
! Compute Effective cloud radius
ZRAY(:,:,:) = 0.
ZLBC(:,:,:) = 0.
IF (PRESENT(PCCT)) THEN ! case KHKO, C2R2, C3R5 (two moments schemes)
ZRAY(:,:,:) = 3.* PRCT(:,:,:) / (4.*XPI*XRHOLW*PCCT(:,:,:))
ZRAY(:,:,:) = ZRAY(:,:,:)**(1./3.) ! Cloud mean radius in m
ELSE IF (PRESENT(PSEA)) THEN ! Case ICE3, RAVE, KESS, ..
ZLBC(:,:,:) = XLBC(1)
ZFSEDC(:,:,:) = XFSEDC(1)
ZCONC(:,:,:) = XCONC_LAND
ZCONC_TMP(:,:)=PSEA(:,:)*XCONC_SEA+(1.-PSEA(:,:))*XCONC_LAND
DO JK=1,SIZE(PRHODREF,3)
ZLBC(:,:,JK) = PSEA(:,:)*XLBC(2)+(1.-PSEA(:,:))*XLBC(1)
ZFSEDC(:,:,JK) = (PSEA(:,:)*XFSEDC(2)+(1.-PSEA(:,:))*XFSEDC(1))
ZFSEDC(:,:,JK) = MAX(MIN(XFSEDC(1),XFSEDC(2)),ZFSEDC(:,:,JK))
ZCONC(:,:,JK) = (1.-PTOWN(:,:))*ZCONC_TMP(:,:)+PTOWN(:,:)*XCONC_URBAN
ZRAY(:,:,JK) = 0.5*((1.-PSEA(:,:))*GAMMA(XNUC+1.0/XALPHAC)/(GAMMA(XNUC)) + &
PSEA(:,:)*GAMMA(XNUC2+1.0/XALPHAC2)/(GAMMA(XNUC2)))
END DO
ZRAY(:,:,:) = MAX(1.,ZRAY(:,:,:))
ZLBC(:,:,:) = MAX(MIN(XLBC(1),XLBC(2)),ZLBC(:,:,:))
ELSE
ZRAY(:,:,:) = 30. ! default value for cloud radius
END IF
!
ZNRT(:,:,:) = 0.
IF (PRESENT(PCRT)) THEN ! case KHKO, C2R2, C3R5
! Transfert Number of rain droplets
ZNRT(:,:,:) = PCRT(:,:,:)
END IF
!-------------------------------------------------------------------------------
!
!* 1. COMPUTE THE AEROSOL/CLOUD-RAIN MASS TRANSFER
! ----------------------------------------------
CALL AER_WET_MASS_TRANSFER
!-------------------------------------------------------------------------------
!
!* 2. COMPUTE THE SEDIMENTATION (RS) SOURCE
! -------------------------------------
!
CALL AER_WET_DEP_KMT_WARM_SEDIMENT
!
!-------------------------------------------------------------------------------
!!
!!* 3. COMPUTES THE SLOW WARM PROCESS SOURCES
!! --------------------------------------
!!
CALL AER_WET_DEP_KMT_ICE_WARM
!
!-------------------------------------------------------------------------------
!!* 4. COMPUTES EVAPORATION PROCESS
!! ----------------------------
!!
CALL AER_WET_DEP_KMT_EVAP
!
!-------------------------------------------------------------------------------
!
!
CONTAINS
!
!
!-------------------------------------------------------------------------------
!
SUBROUTINE AER_WET_MASS_TRANSFER
!
!* 0. DECLARATIONS
! ------------
!
use mode_tools, only: Countjv
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IMPLICIT NONE
!
!* 0.2 declaration of local variables
!
!
INTEGER , DIMENSION(SIZE(GCLOUD)) :: I1C,I2C,I3C! Used to replace the COUNT
INTEGER , DIMENSION(SIZE(GRAIN)) :: I1R,I2R,I3R ! Used to replace the COUNT
INTEGER :: JL ! and PACK intrinsics
INTEGER :: JKAQ ! counter for chemistry
!
!
! 1 Mass transfer Aerosol to cloud (Tost et al., 2006)
!
GCLOUD(:,:,:) = .FALSE.
GCLOUD(:,:,:) = PRCS(:,:,:)>XRTMIN(2)
ICLOUD = COUNTJV( GCLOUD(:,:,:),I1C(:),I2C(:),I3C(:))
IF( ICLOUD >= 1 ) THEN
ALLOCATE(ZSVT(ICLOUD,KMODE*3))
ALLOCATE(ZRHODREF(ICLOUD))
ALLOCATE(ZTHT(ICLOUD))
ALLOCATE(ZRC(ICLOUD))
ALLOCATE(ZPABST(ICLOUD))
ALLOCATE(ZRG(ICLOUD,KMODE))
ALLOCATE(ZTEMP(ICLOUD))
ALLOCATE(ZMU(ICLOUD))
ALLOCATE(ZRCT(ICLOUD))
ALLOCATE(ZVGG(ICLOUD,KMODE))
ALLOCATE(ZDPG(ICLOUD,KMODE))
ALLOCATE(ZGAMMA(ICLOUD))
ALLOCATE(ZW1(ICLOUD))
ALLOCATE(ZCOR(ICLOUD,KMODE))
ALLOCATE(ZMASSMIN(ICLOUD,KMODE))
ALLOCATE(ZWLBDC(ICLOUD))
ALLOCATE(ZCONC1D(ICLOUD))
ALLOCATE(ZDENSITY_AER(ICLOUD,KMODE))
ZSVT(:,:) = 0.
DO JL=1,ICLOUD
DO JKAQ = 1, KMODE
ZRG(JL,JKAQ) = PRGAER(I1C(JL),I2C(JL),I3C(JL),JKAQ)
ENDDO
DO JKAQ = 1, KMODE*3
ZSVT(JL,JKAQ) = PSVT(I1C(JL),I2C(JL),I3C(JL),JKAQ)
END DO
!
ZTHT(JL) = PTHT(I1C(JL),I2C(JL),I3C(JL))
ZRC(JL) = ZRAY(I1C(JL),I2C(JL),I3C(JL))
ZPABST(JL) = PPABST(I1C(JL),I2C(JL),I3C(JL))
ZRCT(JL) = PRCS(I1C(JL),I2C(JL),I3C(JL))
ZRHODREF(JL) = PRHODREF(I1C(JL),I2C(JL),I3C(JL))
ZMASSMIN(JL,:) = PMASSMIN(I1C(JL),I2C(JL),I3C(JL),:)
ZWLBDC(JL) = ZLBC(I1C(JL),I2C(JL),I3C(JL))
ZCONC1D(JL) = ZCONC(I1C(JL),I2C(JL),I3C(JL))
ZDENSITY_AER(JL,:) = PDENSITY_AER(I1C(JL),I2C(JL),I3C(JL),:)
END DO
IF (ANY(ZWLBDC(:)/=0.)) THEN ! case one moments
! On calcule Rc a partir de M(3) car c'est le seul moment indt de alpha et nu
! Rho_air * Rc / (Pi/6 * Rho_eau * Nc) = M(3) = 1/ (Lambda**3 * rapport des
! gamma)
ZWLBDC(:) = ZWLBDC(:) * ZCONC1D(:) / (ZRHODREF(:) * ZRCT(:))
ZWLBDC(:) = ZWLBDC(:)**XLBEXC
ZRC(:) = ZRC(:) / ZWLBDC(:)
END IF
!
! initialize temperature
ZTEMP(:)=ZTHT(:)*(ZPABST(:)/XP00)**(XRD/XCPD)
! compute diffusion and gravitation velocity
CALL AER_VELGRAV(ZRG(:,:), ZPABST(:), &
KMODE, ZMU(:), ZVGG(:,:), &
ZDPG(:,:),ZTEMP(:),ZCOR(:,:), &
ZDENSITY_AER(:,:))
DO JKAQ = 1, KMODE
! Browninan nucleation scavenging (Pruppacher and Klett, 2000, p723)
ZGAMMA(:) = 1.35 * ZRCT(:)*ZRHODREF(:)*1.E-3 * ZDPG(:,JKAQ) /&
(ZRC(:)*ZRC(:))
ZW1(:) = ZSVT(:,JKAQ) * EXP(-ZGAMMA(:) * PTSTEP)
ZW1(:) = MAX(ZW1(:), ZMASSMIN(:,JKAQ))
ZW1(:) = MIN(ZW1(:),ZSVT(:,JKAQ))
! Aerosol mass in cloud
ZSVT(:,KMODE+JKAQ) = ZSVT(:,KMODE+JKAQ) + ZSVT(:,JKAQ) - ZW1(:)
! New aerosol mass
ZSVT(:,JKAQ) = ZW1(:)
! Return in 3D
PSVT(:,:,:,JKAQ) = &
UNPACK(ZSVT(:,JKAQ),MASK=GCLOUD(:,:,:),FIELD=PSVT(:,:,:,JKAQ))
PSVT(:,:,:,KMODE+JKAQ) = &
UNPACK(ZSVT(:,KMODE+JKAQ),MASK=GCLOUD(:,:,:),FIELD=PSVT(:,:,:,KMODE+JKAQ))
ENDDO
DEALLOCATE(ZSVT)
DEALLOCATE(ZRHODREF)
DEALLOCATE(ZTHT)
DEALLOCATE(ZRC)
DEALLOCATE(ZPABST)
DEALLOCATE(ZRG)
DEALLOCATE(ZTEMP)
DEALLOCATE(ZMU)
DEALLOCATE(ZRCT)
DEALLOCATE(ZVGG)
DEALLOCATE(ZDPG)
DEALLOCATE(ZGAMMA)
DEALLOCATE(ZW1)
DEALLOCATE(ZCOR)
DEALLOCATE(ZMASSMIN)
DEALLOCATE(ZWLBDC)
DEALLOCATE(ZCONC1D)
DEALLOCATE(ZDENSITY_AER)
END IF
!
! 2 Mass transfer Aerosol to Rain (Seinfeld and Pandis, 1998, Tost et al., 2006)
!
GRAIN(:,:,:) = .FALSE.
GRAIN(:,:,:) = PRRS(:,:,:)>XRTMIN(3)
IRAIN = COUNTJV( GRAIN(:,:,:),I1R(:),I2R(:),I3R(:))
IF( IRAIN >= 1 ) THEN
!
ALLOCATE(ZRRT(IRAIN))
ALLOCATE(ZSVT(IRAIN,3*KMODE))
ALLOCATE(ZRHODREF(IRAIN))
ALLOCATE(ZTHT(IRAIN))
ALLOCATE(ZRR(IRAIN))
ALLOCATE(ZNT(IRAIN))
ALLOCATE(ZPABST(IRAIN))
ALLOCATE(ZRG(IRAIN,KMODE))
ALLOCATE(ZCOR(IRAIN,KMODE))
ALLOCATE(ZTEMP(IRAIN))
ALLOCATE(ZMU(IRAIN))
ALLOCATE(ZVGG(IRAIN,KMODE))
ALLOCATE(ZDPG(IRAIN,KMODE))
ALLOCATE(ZMUW(IRAIN))
ALLOCATE(ZEFC(IRAIN,KMODE))
ALLOCATE(ZW1(IRAIN))
ALLOCATE(ZFLUX(IRAIN))
ALLOCATE(ZGAMMA(IRAIN))
ALLOCATE(ZMASSMIN(IRAIN,KMODE))
ALLOCATE(ZDENSITY_AER(IRAIN,KMODE))
ZSVT(:,:) = 0.
DO JL=1,IRAIN
DO JKAQ = 1, KMODE
ZRG(JL,JKAQ) = PRGAER(I1R(JL),I2R(JL),I3R(JL),JKAQ )
ZSVT(JL,JKAQ) = PSVT(I1R(JL),I2R(JL),I3R(JL),JKAQ)
ZSVT(JL,KMODE*2+JKAQ) = PSVT(I1R(JL),I2R(JL),I3R(JL),KMODE*2+JKAQ)
END DO
!
ZTHT(JL) = PTHT(I1R(JL),I2R(JL),I3R(JL))
ZPABST(JL) = PPABST(I1R(JL),I2R(JL),I3R(JL))
ZRRT(JL) = PRRS(I1R(JL),I2R(JL),I3R(JL))
ZRHODREF(JL) = PRHODREF(I1R(JL),I2R(JL),I3R(JL))
ZMASSMIN(JL,:) = PMASSMIN(I1R(JL),I2R(JL),I3R(JL),:)
ZNT(JL) = ZNRT(I1R(JL),I2R(JL),I3R(JL))
ZDENSITY_AER(JL,:) = PDENSITY_AER(I1R(JL),I2R(JL),I3R(JL),:)
ENDDO
!
CALL AER_WET_DEP_KMT_EFFIC
! Compute scavenging coefficient
ZFLUX(:) = 0.
ZRRT(:) = MAX(ZRRT(:), 0.)
! Effective precipitation flux (kg.m-2.s-1)
ZFLUX(:) = XFSEDR * ZRRT(:)**(XEXSEDR ) &
* ZRHODREF(:)**(XEXSEDR-XCEXVT)
ZFLUX(:) = MAX(ZFLUX(:), 0.)
IF (ALL(ZNT(:) == 0.)) THEN ! case one moments
!Number concentration NT=No/lbda p. 415 Jacobson
!4/3 *pi *r³*NT*rho_eau(kg/m3) =rho(lwc)=rho(air)* qc(kg/kg)
ZNT (:) = XCCR/(XLBR*( ZRHODREF(:)* ZRRT(:) )**XLBEXR)
END IF
ZRR(:) = (ZRRT(:)*ZRHODREF(:)/(XRHOLW*ZNT(:)*4./3.*XPI))**(1./3.)
DO JKAQ = 1, KMODE
! Tost et al, 2006
ZGAMMA(:) = 0.75 * ZEFC(:,JKAQ) * ZFLUX(:) / (ZRR(:)*1E3)
ZW1(:) = ZSVT(:,JKAQ) * EXP(-ZGAMMA(:) * PTSTEP)
ZW1(:) = MAX(ZW1(:), ZMASSMIN(:,JKAQ))
ZW1(:) = MIN(ZW1(:),ZSVT(:,JKAQ))
! Aerosol mass in rain
ZSVT(:,KMODE*2+JKAQ) = ZSVT(:,KMODE*2+JKAQ) + ZSVT(:,JKAQ) - ZW1(:)
! New aerosol mass
ZSVT(:,JKAQ) = ZW1(:)
! Return to 3D
PSVT(:,:,:,JKAQ) = &
UNPACK(ZSVT(:,JKAQ),MASK=GRAIN(:,:,:),FIELD=PSVT(:,:,:,JKAQ))
PSVT(:,:,:,KMODE*2+JKAQ) = &
UNPACK(ZSVT(:,KMODE*2+JKAQ),MASK=GRAIN(:,:,:),FIELD=PSVT(:,:,:,KMODE*2+JKAQ))
ENDDO
DEALLOCATE(ZRRT)
DEALLOCATE(ZSVT)
DEALLOCATE(ZRHODREF)
DEALLOCATE(ZTHT)
DEALLOCATE(ZRR)
DEALLOCATE(ZNT)
DEALLOCATE(ZPABST)
DEALLOCATE(ZRG)
DEALLOCATE(ZCOR)
DEALLOCATE(ZTEMP)
DEALLOCATE(ZMU)
DEALLOCATE(ZVGG)
DEALLOCATE(ZDPG)
DEALLOCATE(ZMUW)
DEALLOCATE(ZEFC)
DEALLOCATE(ZW1)
DEALLOCATE(ZFLUX)
DEALLOCATE(ZGAMMA)
DEALLOCATE(ZMASSMIN)
DEALLOCATE(ZDENSITY_AER)
END IF
END SUBROUTINE AER_WET_MASS_TRANSFER
!
SUBROUTINE AER_WET_DEP_KMT_WARM_SEDIMENT
!
!* Sedimentation of aerosol in rain droplets
!
!* 0. DECLARATIONS
! ------------
!
IMPLICIT NONE
!
!* declaration of local variables
!
!
INTEGER :: JL ! and PACK intrinsics
INTEGER :: JKAQ ! counter for acquous aerosols
!
!-------------------------------------------------------------------------------
!
!* Time splitting initialization
WAUTELET Philippe
committed
ZTSPLITR = PTSTEP / REAL(KSPLITR)
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!
ZW(:,:,:)=0.
ZRRS(:,:,:) = MAX(PRRS(:,:,:), 0.)
IKE = SIZE(PRCS,3)
DO JK = 1 , SIZE(PZZ,3)-1
ZW(:,:,JK) =ZTSPLITR/(( PZZ(:,:,JK+1)-PZZ(:,:,JK) ))
END DO
WHERE (ZRRS(:,:,:)<=XRTMIN(3))
ZW(:,:,:)=0.
END WHERE
!
ZWSED(:,:,IKE+1) = 0.
! Flux mass aerosol in rain droplets =
! Flux mass rain water * Mass aerosol in rain / Mass rain water
DO JKAQ = 1,KMODE
DO JN = 1 , KSPLITR
ZWSED(:,:,1:IKE) = XFSEDR &
* (ZRRS(:,:,:))**(XEXSEDR-1.) &
* PRHODREF(:,:,:)**(XEXSEDR-XCEXVT) &
* PSVT(:,:,:,KMODE*2+JKAQ)
DO JK = 1, IKE
PSVT(:,:,JK,KMODE*2+JKAQ)= PSVT(:,:,JK,KMODE*2+JKAQ) + &
ZW(:,:,JK)*(ZWSED(:,:,JK+1)-ZWSED(:,:,JK))
! Aerosol mass in rain droplets need to be positive
PSVT(:,:,JK,KMODE*2+JKAQ)= MAX(PSVT(:,:,JK,KMODE*2+JKAQ), 0.)
END DO
END DO
END DO
!
END SUBROUTINE AER_WET_DEP_KMT_WARM_SEDIMENT
!
!-------------------------------------------------------------------------------
!
SUBROUTINE AER_WET_DEP_KMT_ICE_WARM
!
!* 0. DECLARATIONS
!
IMPLICIT NONE
!-------------------------------------------------------------------------------
!
!* 1. compute the autoconversion of r_c for r_r production: RCAUTR
!
ZZW4(:,:,:)=0.0
! to be sure no division by zero in case of ZZRCT = 0.
ZZRCT(:,:,:) = PRCT(:,:,:)
ZZRCT(:,:,:) = MAX(ZZRCT(:,:,:), XRTMIN(2)/2.)
WHERE( (ZZRCT(:,:,:)>XRTMIN(2)) .AND. (PRCS(:,:,:)>0.0 ) )
ZZW4(:,:,:) = MIN( PRCS(:,:,:),XTIMAUTC* &
MAX((ZZRCT(:,:,:)-XCRIAUTC/ PRHODREF(:,:,:)),0.0))
END WHERE
DO JKAQ = 1,KMODE
ZZW2(:,:,:) =0.0
ZZW2(:,:,:)=ZZW4(:,:,:) * PSVT(:,:,:,KMODE+JKAQ)/ZZRCT(:,:,:) * PTSTEP
ZZW2(:,:,:) = MAX(MIN( ZZW2(:,:,:), PSVT(:,:,:,KMODE+JKAQ)),0.0)
! For rain - Increase the aerosol conc in rain
PSVT(:,:,:,KMODE*2+JKAQ) = &
PSVT(:,:,:,KMODE*2+JKAQ) + ZZW2(:,:,:)
! For Cloud Decrease the aerosol conc in cloud
PSVT(:,:,:,KMODE+JKAQ) = &
PSVT(:,:,:,KMODE+JKAQ) - ZZW2(:,:,:)
ENDDO
!
!* 2. compute the accretion of r_c for r_r production: RCACCR
!
ZZW4(:,:,:)=0.0
ZLBDAR(:,:,:)=0.0
WHERE ( (ZZRCT(:,:,:)>XRTMIN(2)) .AND. (PRRT(:,:,:)>XRTMIN(3)) &
.AND. (PRCS(:,:,:)> 0.0 ) )
ZLBDAR(:,:,:) = XLBR*( PRHODREF(:,:,:)* PRRT(:,:,:) )**XLBEXR
ZZW4(:,:,:) = MIN( PRCS(:,:,:),XFCACCR * ZZRCT(:,:,:) &
* ZLBDAR(:,:,:)**XEXCACCR &
* PRHODREF(:,:,:)**(-XCEXVT) )
END WHERE
!
DO JKAQ = 1,KMODE
ZZW2(:,:,:)=0.0
ZZW2(:,:,:)=ZZW4(:,:,:) * PSVT(:,:,:,KMODE+JKAQ)/ZZRCT(:,:,:) * PTSTEP
ZZW2(:,:,:) = MAX(MIN(ZZW2(:,:,:),PSVT(:,:,:,KMODE+JKAQ)), 0.0)
!* 3. compute the new acquous aerosol mass
!
! For rain - Increase the aerosol conc in rain
PSVT(:,:,:,KMODE*2+JKAQ) = PSVT(:,:,:,KMODE*2+JKAQ) + ZZW2(:,:,:)
! For Cloud Decrease the aerosol conc in cloud
PSVT(:,:,:,KMODE+JKAQ) = PSVT(:,:,:,KMODE+JKAQ) - ZZW2(:,:,:)
ENDDO
END SUBROUTINE AER_WET_DEP_KMT_ICE_WARM
!---------------------------------------------------------------------------------------
SUBROUTINE AER_WET_DEP_KMT_EVAP
!
!* COMPUTES THE EVAPORATION OF CLOUD-RAIN FOR THE
!* RE-RELEASE OF AER INTO THE ENVIRONMENT
! --------------------------------------
!
!
!* 0. DECLARATIONS
! ------------
!
IMPLICIT NONE
!* declaration of local variables
!
INTEGER :: JKAQ ! counter for aerosols
!* 1. compute the evaporation of r_r: RREVAV
!When partial reevaporation of precip takes place, the fraction of
!tracer precipitating form above is reevaporated is equal to
!half of the evaporation rate of water
!
! Rain water evaporated during PTSTEP in kg/kg
ZZEVAP(:,:,:) = PEVAP3D(:,:,:) * PTSTEP
! Fraction of rain water evaporated
! at this stage (bulk), we consider that the flux of evaporated aerosol
! is a ratio of the evaporated rain water.
! It will interested to calculate with a two moment scheme (C2R2 or C3R5)
! the complete evaporation of rain droplet to use it for the compuation
! of the evaporated aerosol flux.
ZWEVAP(:,:,:)=0.0
WHERE( PRRT(:,:,:) .GT. XRTMIN(3) )
ZWEVAP(:,:,:) = ZZEVAP(:,:,:)/(PRRT(:,:,:))
END WHERE
ZWEVAP(:,:,:)=MIN(ZWEVAP(:,:,:),1.0)
ZWEVAP(:,:,:)=MAX(ZWEVAP(:,:,:),0.0)
!* 2. compute the mask of r_c evaporation : all cloud is evaporated
! no partial cloud evaporation at this stage
ZMASK(:,:,:) = 0.
WHERE( PRCS(:,:,:) .LT. XRTMIN(2) )
ZMASK(:,:,:) = 1.
END WHERE
!
!
DO JKAQ = 1,KMODE
ZZW1(:,:,:) = ZMASK(:,:,:)*PSVT(:,:,:,KMODE+JKAQ)
ZZW2(:,:,:) = ZWEVAP(:,:,:)*PSVT(:,:,:,KMODE*2+JKAQ)
! 3. New dry aerosol mass
!
PSVT(:,:,:,JKAQ) = PSVT(:,:,:,JKAQ) + ZZW2(:,:,:) + ZZW1(:,:,:)
! 4. New cloud aerosol mass
!
PSVT(:,:,:,KMODE+JKAQ) = PSVT(:,:,:,KMODE+JKAQ) - ZZW1(:,:,:)
! 5. New rain aerosol mass
!
PSVT(:,:,:,KMODE*2+JKAQ) = PSVT(:,:,:,KMODE*2+JKAQ) - ZZW2(:,:,:)
END DO
!
!
END SUBROUTINE AER_WET_DEP_KMT_EVAP
!---------------------------------------------------------------------------------------
SUBROUTINE AER_WET_DEP_KMT_EFFIC
!
!* COMPUTES THE EFFICIENCY FACTOR
! ------------------------------
!
!
!* 0. DECLARATIONS
! ------------
!
IMPLICIT NONE
!
!
!* 1. COMPUTES THE EFFICIENCY FACTOR
! --------------------------------------
!
!* 1.1 compute gravitational velocities
!
!initialize
ZTEMP(:)=ZTHT(:)*(ZPABST(:)/XP00)**(XRD/XCPD)
ZTEMP(:)=MAX(ZTEMP(:),1.e-12)
CALL AER_VELGRAV(ZRG(:,:), ZPABST(:), KMODE, &
ZMU(:), ZVGG(:,:), &
ZDPG(:,:),ZTEMP(:), &
ZCOR(:,:), ZDENSITY_AER(:,:))
! Above gives mu (ZMU), v(aerosol)(PVGG, m/s), diffusion (ZDPG, m2/s)
!
!* 1.2 Compute Water Viscocity in kg/m/s Prup. & Klett, p.95
!
!
A0=1.76
A1=-5.5721e-2
A2=-1.3943e-3
A3=-4.3015e-5
ZMUW(:)=A0*EXP(A1*(ZTEMP(:)-273.15) &
+A2*(ZTEMP(:)-273.15) + A3*(ZTEMP(:)-273.15))*1.e-3
A1=-3.5254e-2
A2=4.7163e-4
A3=-6.0667e-6
WHERE (ZTEMP(:)>273.15)
ZMUW(:)=A0*EXP(A1*(ZTEMP(:)-273.15) &
+A2*(ZTEMP(:)-273.15) + A3*(ZTEMP(:)-273.15))*1.e-3
END WHERE
ZMUW(:)=MAX(ZMUW(:),1.e-12)
!
!* 1.3 compute efficiency factor
!
! This gives aerosol collection efficiency by calculating Reynolds number
! schmidt number, stokes number, etc
CALL AER_EFFIC(ZRG(:,:), ZVGG(:,:), & !aerosol radius/velocity
ZRHODREF(:), & !Air density
ZMUW(:), ZMU(:), & !mu water/air
ZDPG(:,:), ZEFC(:,:), & !diffusivity, efficiency
ZRRT(:), KMODE, & !Rain water, nb aerosols modes
ZTEMP(:),ZCOR(:,:), & ! Temperature, Cunnimgham coeff
ZDENSITY_AER(:,:)) ! aerosol density
!
END SUBROUTINE AER_WET_DEP_KMT_EFFIC
!
!-------------------------------------------------------------------------------
!
END SUBROUTINE AER_WET_DEP_KMT_WARM