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!MNH_LIC Copyright 1994-2018 CNRS, Meteo-France and Universite Paul Sabatier
!MNH_LIC This is part of the Meso-NH software governed by the CeCILL-C licence
!MNH_LIC version 1. See LICENSE, CeCILL-C_V1-en.txt and CeCILL-C_V1-fr.txt
!MNH_LIC for details. version 1.
!-----------------------------------------------------------------
! ######################
MODULE MODI_ICE_ADJUST
! ######################
!
INTERFACE
!
SUBROUTINE ICE_ADJUST (KKA, KKU, KKL, KRR, KMI, HRAD, &
HTURBDIM, OSUBG_COND, OSIGMAS, PTSTEP, PSIGQSAT, &
PRHODJ, PEXNREF, PSIGS,PMFCONV,PPABST,PZZ, &
PCF_MF,PRC_MF, PRI_MF, &
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PRVT, PRCT, PRVS, PRCS, PTHS, PSRCS, PCLDFR , &
PRRT, PRRS, PRIT, PRIS, PRST,PRSS, PRGT, PRGS, &
PRHT, PRHS )
!
INTEGER, INTENT(IN) :: KKA !near ground array index
INTEGER, INTENT(IN) :: KKU !uppest atmosphere array index
INTEGER, INTENT(IN) :: KKL !vert. levels type 1=MNH -1=ARO
INTEGER, INTENT(IN) :: KRR ! Number of moist variables
INTEGER, INTENT(IN) :: KMI ! Model index
CHARACTER*4, INTENT(IN) :: HTURBDIM ! Dimensionality of the
! turbulence scheme
CHARACTER*4, INTENT(IN) :: HRAD ! Radiation scheme name
LOGICAL, INTENT(IN) :: OSUBG_COND ! Switch for Subgrid
! Condensation
LOGICAL :: OSIGMAS ! Switch for Sigma_s:
! use values computed in CONDENSATION
! or that from turbulence scheme
REAL, INTENT(IN) :: PTSTEP ! Double Time step
! (single if cold start)
REAL, INTENT(IN) :: PSIGQSAT ! coeff applied to qsat variance contribution
!
REAL, DIMENSION(:,:,:), INTENT(IN) :: PRHODJ ! Dry density * Jacobian
REAL, DIMENSION(:,:,:), INTENT(IN) :: PEXNREF ! Reference Exner function
!
REAL, DIMENSION(:,:,:), INTENT(IN) :: PSIGS ! Sigma_s at time t
REAL, DIMENSION(:,:,:), INTENT(IN) :: PMFCONV ! convective mass flux
REAL, DIMENSION(:,:,:), INTENT(IN) :: PPABST ! Absolute Pressure at t
REAL, DIMENSION(:,:,:), INTENT(IN) :: PZZ ! height of model layer
!
REAL, DIMENSION(:,:,:), INTENT(IN) :: PCF_MF! Convective Mass Flux Cloud fraction
REAL, DIMENSION(:,:,:), INTENT(IN) :: PRI_MF! Convective Mass Flux ice mixing ratio
REAL, DIMENSION(:,:,:), INTENT(IN) :: PRC_MF! Convective Mass Flux liquid mixing ratio
!
REAL, DIMENSION(:,:,:), INTENT(IN) :: PRVT ! Water vapor m.r. at t
REAL, DIMENSION(:,:,:), INTENT(IN) :: PRCT ! Cloud water m.r. at t
REAL, DIMENSION(:,:,:), INTENT(INOUT) :: PRVS ! Water vapor m.r. source
REAL, DIMENSION(:,:,:), INTENT(INOUT) :: PRCS ! Cloud water m.r. source
REAL, DIMENSION(:,:,:), INTENT(INOUT) :: PTHS ! Theta source
REAL, DIMENSION(:,:,:), INTENT(OUT) :: PSRCS ! Second-order flux
! s'rc'/2Sigma_s2 at time t+1
! multiplied by Lambda_3
REAL, DIMENSION(:,:,:), INTENT(OUT) :: PCLDFR ! Cloud fraction
REAL, DIMENSION(:,:,:), INTENT(IN) :: PRRS ! Rain water m.r. at t+1
REAL, DIMENSION(:,:,:), INTENT(INOUT):: PRIS ! Cloud ice m.r. at t+1
REAL, DIMENSION(:,:,:), INTENT(IN) :: PRSS ! Aggregate m.r. at t+1
REAL, DIMENSION(:,:,:), INTENT(IN) :: PRGS ! Graupel m.r. at t+1
REAL, DIMENSION(:,:,:), INTENT(IN) :: PRRT ! Rain water m.r. at t
REAL, DIMENSION(:,:,:), INTENT(IN) :: PRIT ! Cloud ice m.r. at t
REAL, DIMENSION(:,:,:), INTENT(IN) :: PRST ! Aggregate m.r. at t
REAL, DIMENSION(:,:,:), INTENT(IN) :: PRGT ! Graupel m.r. at t
REAL, DIMENSION(:,:,:), OPTIONAL, INTENT(IN) :: PRHT ! Hail m.r. at t
REAL, DIMENSION(:,:,:), OPTIONAL, INTENT(IN) :: PRHS ! Hail m.r. at t+1
!
!
END SUBROUTINE ICE_ADJUST
!
END INTERFACE
!
END MODULE MODI_ICE_ADJUST
!
! ##########################################################################
SUBROUTINE ICE_ADJUST (KKA, KKU, KKL, KRR, KMI, HRAD, &
HTURBDIM, OSUBG_COND, OSIGMAS, PTSTEP, PSIGQSAT, &
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PCF_MF,PRC_MF,PRI_MF, &
PRVT, PRCT, PRVS, PRCS, PTHS, PSRCS, PCLDFR , &
PRRT, PRRS, PRIT, PRIS, PRST,PRSS, PRGT, PRGS, &
PRHT, PRHS )
! #########################################################################
!
!!**** *ICE_ADJUST* - compute the ajustment of water vapor in mixed-phase
!! clouds
!!
!! PURPOSE
!! -------
!! The purpose of this routine is to compute the fast microphysical sources
!! through a saturation ajustement procedure in case of mixed-phase clouds.
!!
!!
!!** METHOD
!! ------
!! Langlois, Tellus, 1973 for the cloudless version.
!! When cloud water is taken into account, refer to book 1 of the
!! documentation.
!!
!!
!!
!! EXTERNAL
!! --------
!! None
!!
!!
!! IMPLICIT ARGUMENTS
!! ------------------
!! Module MODD_CST
!! XP00 ! Reference pressure
!! XMD,XMV ! Molar mass of dry air and molar mass of vapor
!! XRD,XRV ! Gaz constant for dry air, gaz constant for vapor
!! XCPD,XCPV ! Cpd (dry air), Cpv (vapor)
!! XCL ! Cl (liquid)
!! XCI ! Ci (ice)
!! XTT ! Triple point temperature
!! XLVTT ! Vaporization heat constant
!! XLSTT ! Sublimation heat constant
!! XALPW,XBETAW,XGAMW ! Constants for saturation vapor over liquid
!! ! pressure function
!! XALPI,XBETAI,XGAMI ! Constants for saturation vapor over ice
!! ! pressure function
!! Module MODD_CONF
!! CCONF
!! Module MODD_BUDGET:
!! NBUMOD
!! CBUTYPE
!! NBUPROCCTR
!! LBU_RTH
!! LBU_RRV
!! LBU_RRC
!! LBU_RRI
!!
!!
!! REFERENCE
!! ---------
!! Book 1 and Book2 of documentation ( routine ICE_ADJUST )
!! Langlois, Tellus, 1973
!!
!! AUTHOR
!! ------
!! J.-P. Pinty * Laboratoire d'Aerologie*
!!
!!
!! MODIFICATIONS
!! -------------
!! Original 06/12/96
!! M. Tomasini 27/11/00 Change CND and DEP fct of the T instead of rc and ri
!! Avoid the sub- and super-saturation before the ajustment
!! Avoid rc>0 if T<T00 before the ajustment
!! P Bechtold 12/02/02 change subgrid condensation
!! JP Pinty 29/11/02 add ICE2 and IC4 cases
!! (P. Jabouille) 27/05/04 safety test for case where esw/i(T)> pabs (~Z>40km)
!! J.Pergaud and S.Malardel Add EDKF case
!! (E.Perraud) 06/08 add correction to avoid ice when T >0
!! S. Riette ice for EDKF
!! 2012-02 Y. Seity, add possibility to run with reversed vertical levels
!! J.Escobar : 15/09/2015 : WENO5 & JPHEXT <> 1
!! Philippe Wautelet: 05/2016-04/2018: new data structures and calls for I/O
!!
!-------------------------------------------------------------------------------
!
!* 0. DECLARATIONS
! ------------
!
USE MODD_PARAMETERS
USE MODD_CST
USE MODD_CONF
USE MODD_BUDGET
!
USE MODI_CONDENSATION
USE MODI_BUDGET
USE MODE_FMWRIT
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!
IMPLICIT NONE
!
!
!* 0.1 Declarations of dummy arguments :
!
!
INTEGER, INTENT(IN) :: KKA !near ground array index
INTEGER, INTENT(IN) :: KKU !uppest atmosphere array index
INTEGER, INTENT(IN) :: KKL !vert. levels type 1=MNH -1=ARO
INTEGER, INTENT(IN) :: KRR ! Number of moist variables
INTEGER, INTENT(IN) :: KMI ! Model index
CHARACTER*4, INTENT(IN) :: HTURBDIM ! Dimensionality of the
! turbulence scheme
CHARACTER*4, INTENT(IN) :: HRAD ! Radiation scheme name
LOGICAL, INTENT(IN) :: OSUBG_COND ! Switch for Subgrid
! Condensation
LOGICAL :: OSIGMAS ! Switch for Sigma_s:
! use values computed in CONDENSATION
! or that from turbulence scheme
REAL, INTENT(IN) :: PTSTEP ! Double Time step
! (single if cold start)
REAL, INTENT(IN) :: PSIGQSAT ! coeff applied to qsat variance contribution
!
REAL, DIMENSION(:,:,:), INTENT(IN) :: PRHODJ ! Dry density * Jacobian
REAL, DIMENSION(:,:,:), INTENT(IN) :: PEXNREF ! Reference Exner function
!
REAL, DIMENSION(:,:,:), INTENT(IN) :: PSIGS ! Sigma_s at time t
REAL, DIMENSION(:,:,:), INTENT(IN) :: PMFCONV ! convective mass flux
REAL, DIMENSION(:,:,:), INTENT(IN) :: PPABST ! Absolute Pressure at t
REAL, DIMENSION(:,:,:), INTENT(IN) :: PZZ ! height of model layer
!
REAL, DIMENSION(:,:,:), INTENT(IN) :: PCF_MF! Convective Mass Flux Cloud fraction
REAL, DIMENSION(:,:,:), INTENT(IN) :: PRC_MF! Convective Mass Flux liquid mixing ratio
REAL, DIMENSION(:,:,:), INTENT(IN) :: PRI_MF! Convective Mass Flux ice mixing ratio
!
REAL, DIMENSION(:,:,:), INTENT(IN) :: PRVT ! Water vapor m.r. at t
REAL, DIMENSION(:,:,:), INTENT(IN) :: PRCT ! Cloud water m.r. at t
REAL, DIMENSION(:,:,:), INTENT(INOUT) :: PRVS ! Water vapor m.r. source
REAL, DIMENSION(:,:,:), INTENT(INOUT) :: PRCS ! Cloud water m.r. source
REAL, DIMENSION(:,:,:), INTENT(INOUT) :: PTHS ! Theta source
REAL, DIMENSION(:,:,:), INTENT(OUT) :: PSRCS ! Second-order flux
! s'rc'/2Sigma_s2 at time t+1
! multiplied by Lambda_3
REAL, DIMENSION(:,:,:), INTENT(OUT) :: PCLDFR ! Cloud fraction
!
REAL, DIMENSION(:,:,:), INTENT(IN) :: PRRS ! Rain water m.r. at t+1
REAL, DIMENSION(:,:,:), INTENT(INOUT):: PRIS ! Cloud ice m.r. at t+1
REAL, DIMENSION(:,:,:), INTENT(IN) :: PRSS ! Aggregate m.r. at t+1
REAL, DIMENSION(:,:,:), INTENT(IN) :: PRGS ! Graupel m.r. at t+1
REAL, DIMENSION(:,:,:), INTENT(IN) :: PRRT ! Rain water m.r. at t
REAL, DIMENSION(:,:,:), INTENT(IN) :: PRIT ! Cloud ice m.r. at t
REAL, DIMENSION(:,:,:), INTENT(IN) :: PRST ! Aggregate m.r. at t
REAL, DIMENSION(:,:,:), INTENT(IN) :: PRGT ! Graupel m.r. at t
REAL, DIMENSION(:,:,:), OPTIONAL, INTENT(IN) :: PRHT ! Hail m.r. at t
REAL, DIMENSION(:,:,:), OPTIONAL, INTENT(IN) :: PRHS ! Hail m.r. at t+1
!
!* 0.2 Declarations of local variables :
!
!
REAL :: ZEPS ! Mv/Md
REAL :: ZT00,ZT0 ! Min and max temperature for the mixed phase liquid and solid water
! for the coeff CND of the barycentric mixing ratio
REAL, DIMENSION(SIZE(PEXNREF,1),SIZE(PEXNREF,2),SIZE(PEXNREF,3)) &
:: ZEXNS,& ! guess of the Exner functon at t+1
ZT, & ! guess of the temperature at t+1
ZCPH, & ! guess of the CPh for the mixing
ZLV, & ! guess of the Lv at t+1
ZLS, & ! guess of the Ls at t+1
ZW1,ZW2,ZW3,ZW4,ZW5,ZW6,ZW7,& ! Work arrays for intermediate fields
ZCND ! CND=(T-T00)/(T0-T00) cf sc doc and TAO etal (89)
!
INTEGER :: IIU,IJU,IKU! dimensions of dummy arrays
INTEGER :: IIB,IJB ! Horz index values of the first inner mass points
INTEGER :: IIE,IJE ! Horz index values of the last inner mass points
INTEGER :: IKB ! K index value of the first inner mass point
INTEGER :: IKE ! K index value of the last inner mass point
INTEGER :: JITER,ITERMAX ! iterative loop for first order adjustment
!
LOGICAL :: LPRETREATMENT, LNEW_ADJUST
!
!-------------------------------------------------------------------------------
!
!* 1. PRELIMINARIES
! -------------
!
IIU = SIZE(PEXNREF,1)
IJU = SIZE(PEXNREF,2)
IKU = SIZE(PEXNREF,3)
CALL GET_INDICE_ll (IIB,IJB,IIE,IJE)
IKB=KKA+JPVEXT*KKL
IKE=KKU-JPVEXT*KKL
!
ZEPS= XMV / XMD
!
ITERMAX=1
!
LPRETREATMENT=.TRUE. ! FALSE to retreive the previous MASDEV4_1 version
LNEW_ADJUST =.TRUE. ! FALSE to retreive the previous MASDEV4_1 version
ZT0 = XTT ! Usefull if LPRETREATMENT=T or LNEW_ADJUST=T
ZT00 = XTT-40. ! Usefull if LPRETREATMENT=T or LNEW_ADJUST=T
!
!-------------------------------------------------------------------------------
!
!* 2. COMPUTE QUANTITIES WITH THE GUESS OF THE FUTURE INSTANT
! -------------------------------------------------------
!
!* 2.1 estimate the pressure at t+1
!
ZEXNS(:,:,:) = ( PPABST(:,:,:) /XP00)**(XRD/XCPD)
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!
! beginning of the iterative loop
!
DO JITER =1,ITERMAX
!
!* 2.2 compute the intermediate temperature at t+1, T*
!
ZT(:,:,:) = ( PTHS(:,:,:) * PTSTEP ) * ZEXNS(:,:,:)
!
!* 2.3 compute the latent heat of vaporization Lv(T*) at t+1
! and the latent heat of sublimation Ls(T*) at t+1
!
ZLV(:,:,:) = XLVTT + ( XCPV - XCL ) * ( ZT(:,:,:) -XTT )
ZLS(:,:,:) = XLSTT + ( XCPV - XCI ) * ( ZT(:,:,:) -XTT )
!
!* 2.4 compute the specific heat for moist air (Cph) at t+1
!
IF ( KRR == 7 ) THEN
ZCPH(:,:,:) = XCPD + XCPV *PTSTEP* PRVS(:,:,:) &
+ XCL *PTSTEP* ( PRCS(:,:,:) + PRRS(:,:,:) ) &
+ XCI *PTSTEP* ( PRIS(:,:,:) + PRSS(:,:,:) + PRGS(:,:,:) &
+ PRHS(:,:,:) )
ELSE IF( KRR == 6 ) THEN
ZCPH(:,:,:) = XCPD + XCPV *PTSTEP* PRVS(:,:,:) &
+ XCL *PTSTEP* ( PRCS(:,:,:) + PRRS(:,:,:) ) &
+ XCI *PTSTEP* ( PRIS(:,:,:) + PRSS(:,:,:) + PRGS(:,:,:) )
ELSE IF( KRR == 5 ) THEN
ZCPH(:,:,:) = XCPD + XCPV *PTSTEP* PRVS(:,:,:) &
+ XCL *PTSTEP* ( PRCS(:,:,:) + PRRS(:,:,:) ) &
+ XCI *PTSTEP* ( PRIS(:,:,:) + PRSS(:,:,:) )
ELSE IF( KRR == 3 ) THEN
ZCPH(:,:,:) = XCPD + XCPV *PTSTEP* PRVS(:,:,:) &
+ XCL *PTSTEP* ( PRCS(:,:,:) + PRRS(:,:,:) )
ELSE IF( KRR == 2 ) THEN
ZCPH(:,:,:) = XCPD + XCPV *PTSTEP* PRVS(:,:,:) &
+ XCL *PTSTEP* PRCS(:,:,:)
END IF
!
!
!* 3. FIRST ORDER SUBGRID CONDENSATION SCHEME
! ---------------------------------------
!
IF ( OSUBG_COND ) THEN
!
!
!* 3.1 compute condensate, cloud fraction
!
! ZW3=water vapor ZW1=rc (INOUT) ZW2=ri (INOUT) PSRC= s'rci'/Sigma_s^2
ZW3= PRVS*PTSTEP; ZW1=PRCS*PTSTEP; ZW2=PRIS*PTSTEP
CALL CONDENSATION( IIU, IJU, IKU, IIB, IIE, IJB, IJE, IKB, IKE, KKL, &
PPABST, PZZ, ZT, ZW3, ZW1, ZW2, PSIGS, PMFCONV, PCLDFR, PSRCS, .TRUE., OSIGMAS, &
PSIGQSAT )
!
!* 3.2 compute the variation of mixing ratio
!
! Rc - Rc*
ZW1(:,:,:) = (ZW1(:,:,:)/PTSTEP) - PRCS(:,:,:) ! Pcon = ----------
! 2 Delta t
ZW2(:,:,:) = (ZW2(:,:,:)/PTSTEP) - PRIS(:,:,:) ! idem ZW1 but for Ri
ELSE
!
!
!* 4. SECOND ORDER ALL OR NOTHING CONDENSATION SCHEME
! FOR MIXED-PHASE CLOUD
! -----------------------------------------------
!
!
!* 4.1 Eventually pretreatment
!
IF (LPRETREATMENT) THEN
!
!* compute the saturation vapor pressures at t+1
!
ZW1(:,:,:) = EXP( XALPW - XBETAW/ZT(:,:,:) - XGAMW*ALOG(ZT(:,:,:)) ) ! e_sw
ZW2(:,:,:) = EXP( XALPI - XBETAI/ZT(:,:,:) - XGAMI*ALOG(ZT(:,:,:)) ) ! e_si
ZW1(:,:,:) = MIN(PPABST(:,:,:)/2.,ZW1(:,:,:)) ! safety limitation
ZW2(:,:,:) = MIN(PPABST(:,:,:)/2.,ZW2(:,:,:)) ! safety limitation
!
!* compute the saturation mixing ratios at t+1
!
ZW3(:,:,:) = ZW1(:,:,:) * ZEPS &
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!
WHERE(PRVS(:,:,:)*PTSTEP.LT.ZW4(:,:,:).AND. PRCS(:,:,:).GT.0..AND. ZT(:,:,:).LT.XTT)
!
! Subsaturation case with respect to rsi(T,P) (and case rv<0):
! Evaporation of rc>0 (while enough) to decrease the lack of vapor
!
ZW5 (:,:,:)= MIN( PRCS , ZW4(:,:,:)/PTSTEP - PRVS(:,:,:) ) ! RVCNDC
PRVS(:,:,:)= PRVS(:,:,:) + ZW5(:,:,:)
PRCS(:,:,:)= PRCS(:,:,:) - ZW5(:,:,:)
PTHS(:,:,:)= PTHS(:,:,:) - ZW5(:,:,:) * ZLV(:,:,:) /(ZCPH(:,:,:)*PEXNREF(:,:,:))
!
END WHERE
!
WHERE ( PRVS(:,:,:)*PTSTEP .GT. ZW3(:,:,:) )
!
! Supersaturation case with respect to rsw(T,P):
! Condensation of the vapor that is left
!
ZW5 (:,:,:)= PRVS(:,:,:) - ZW3(:,:,:)/PTSTEP
PRVS(:,:,:)= PRVS(:,:,:) - ZW5(:,:,:) ! RVCNDC
PRCS(:,:,:)= PRCS(:,:,:) + ZW5(:,:,:)
PTHS(:,:,:)= PTHS(:,:,:) + ZW5(:,:,:) * ZLV(:,:,:) /(ZCPH(:,:,:)*PEXNREF(:,:,:))
!
END WHERE
!
WHERE ( PRCS(:,:,:).GT.0. .AND. ZT(:,:,:).LT.ZT00 )
!
! Treatment of rc>0 if T<T00:
!
PRIS(:,:,:)= PRIS(:,:,:) + PRCS(:,:,:)
PTHS(:,:,:)= PTHS(:,:,:) + &
PRCS(:,:,:) * (ZLS(:,:,:)-ZLV(:,:,:)) /(ZCPH(:,:,:)*PEXNREF(:,:,:))
PRCS(:,:,:)= 0.
!
END WHERE
!
!* 4.2 compute the intermediate temperature at t+1, T*
!
ZT(:,:,:) = ( PTHS(:,:,:) * PTSTEP ) * ZEXNS(:,:,:)
!
END IF !end PRETREATMENT
!
!* 4.3 compute the saturation vapor pressures at t+1
!
ZW1(:,:,:) = EXP( XALPW - XBETAW/ZT(:,:,:) - XGAMW*ALOG(ZT(:,:,:)) ) ! e_sw
ZW2(:,:,:) = EXP( XALPI - XBETAI/ZT(:,:,:) - XGAMI*ALOG(ZT(:,:,:)) ) ! e_si
ZW1(:,:,:) = MIN(PPABST(:,:,:)/2.,ZW1(:,:,:)) ! safety limitation
ZW2(:,:,:) = MIN(PPABST(:,:,:)/2.,ZW2(:,:,:)) ! safety limitation
!
!* 4.4 compute the saturation mixing ratios at t+1
!
ZW3(:,:,:) = ZW1(:,:,:) * ZEPS &
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!
!* 4.5 compute the saturation mixing ratio derivatives (r'_vs)
!
ZW1(:,:,:) = (( XBETAW/ZT(:,:,:) - XGAMW ) / ZT(:,:,:)) & ! r'_sw
* ZW3(:,:,:) * ( 1. + ZW3(:,:,:)/ZEPS )
ZW2(:,:,:) = (( XBETAI/ZT(:,:,:) - XGAMI ) / ZT(:,:,:)) & ! r'_si
* ZW4(:,:,:) * ( 1. + ZW4(:,:,:)/ZEPS )
!
IF (LNEW_ADJUST) THEN
ZCND(:,:,:)= ( ZT(:,:,:) - ZT00 ) / (ZT0-ZT00) ! Like Tao et al 89
ZCND(:,:,:)= MAX ( MIN(ZCND(:,:,:),1.) , 0. )
ELSE
WHERE( (PRCS(:,:,:)+PRIS(:,:,:)) .GT. 1.0E-20 ) &
ZCND(:,:,:)= PRCS(:,:,:) / (PRCS(:,:,:)+PRIS(:,:,:)) ! Like the original version
END IF
!
!* 4.5 compute L_v CND + L_s DEP and F'(T)
!
WHERE( (PRCS(:,:,:)+PRIS(:,:,:)) .GT. 1.0E-20 )
!
ZW5(:,:,:) = ZLS(:,:,:) + ( ZLV(:,:,:)-ZLS(:,:,:) ) * ZCND(:,:,:)
ZW6(:,:,:) = ZCPH(:,:,:) * ( PRCS(:,:,:) + PRIS(:,:,:) ) + &
ZW5(:,:,:) * ( PRCS(:,:,:)*ZW1(:,:,:) &
+ PRIS(:,:,:)*ZW2(:,:,:) )
!
!* 4.6 compute Delta 2
!
ZW7(:,:,:) = (ZW5(:,:,:)/(ZW6(:,:,:)*ZT(:,:,:))) * &
( PRCS(:,:,:)*ZW1(:,:,:) * &
((-2.*XBETAW+XGAMW*ZT(:,:,:)) / (XBETAW-XGAMW*ZT(:,:,:)) &
+ (XBETAW-XGAMW*ZT(:,:,:))*(1.0+2.0*ZW3(:,:,:)/ZEPS)/ZT(:,:,:)) &
+ PRIS(:,:,:)*ZW2(:,:,:) * &
((-2.*XBETAI+XGAMI*ZT(:,:,:)) / (XBETAI-XGAMI*ZT(:,:,:)) &
+ (XBETAI-XGAMI*ZT(:,:,:))*(1.0+2.0*ZW4(:,:,:)/ZEPS)/ZT(:,:,:)) )
!
!* 4.7 compute Delta 1
!
ZW6(:,:,:) = ZW5(:,:,:)*( PRCS(:,:,:)*ZW3(:,:,:) + PRIS(:,:,:)*ZW4(:,:,:)&
- PRVS(:,:,:)*PTSTEP*(PRCS(:,:,:) + PRIS(:,:,:)) &
)/ZW6(:,:,:)
!
!* 4.8 compute the sources
!
ZW3(:,:,:) = (ZCPH(:,:,:)/ZW5(:,:,:)) * &
(-ZW6(:,:,:) * ( 1.0 + 0.5*ZW6(:,:,:)*ZW7(:,:,:) )) / PTSTEP
ZW1(:,:,:) = ZW3(:,:,:)*ZCND(:,:,:) ! RVCNDC
ZW2(:,:,:) = ZW3(:,:,:)*( 1.0 - ZCND(:,:,:) ) ! RVDEPI
!
ELSEWHERE
!
!* 4.9 special case when both r_c and r_i are zero
!
ZW6(:,:,:) = ZCPH(:,:,:) + ZLV(:,:,:) * ZW1(:,:,:) ! F'(T)
ZW7(:,:,:) = (ZLV(:,:,:)/(ZW6(:,:,:)*ZT(:,:,:))) * & ! Delta 2
( ZW1(:,:,:) * &
( (-2.*XBETAW+XGAMW*ZT(:,:,:)) / (XBETAW-XGAMW*ZT(:,:,:)) &
+ (XBETAW-XGAMW*ZT(:,:,:))*(1.0+2.0*ZW3(:,:,:)/ZEPS)/ZT(:,:,:) ) )
ZW6(:,:,:) = ZLV(:,:,:)*( ZW3(:,:,:)-PRVS(:,:,:)*PTSTEP )/ZW6(:,:,:)! Delta 1
ZW1(:,:,:) = (ZCPH(:,:,:)/ZLV(:,:,:)) * &! RVCNDC
(-ZW6(:,:,:) * ( 1.0 + 0.5*ZW6(:,:,:)*ZW7(:,:,:) ))/PTSTEP
ZW2(:,:,:) = 0.0 ! RVDEPI
!
END WHERE
!
END IF
!
!* 5. COMPUTE THE SOURCES AND STORES THE CLOUD FRACTION
! -------------------------------------------------
!
!
!* 5.1 compute the sources
!
WHERE( ZW1(:,:,:) < 0.0 )
ZW1(:,:,:) = MAX ( ZW1(:,:,:), -PRCS(:,:,:) )
ELSEWHERE
ZW1(:,:,:) = MIN ( ZW1(:,:,:), PRVS(:,:,:) )
END WHERE
!
PRVS(:,:,:) = PRVS(:,:,:) - ZW1(:,:,:)
PRCS(:,:,:) = PRCS(:,:,:) + ZW1(:,:,:)
PTHS(:,:,:) = PTHS(:,:,:) + &
ZW1(:,:,:) * ZLV(:,:,:) / (ZCPH(:,:,:) * PEXNREF(:,:,:))
!
WHERE( ZW2(:,:,:) < 0.0 )
ZW2(:,:,:) = MAX ( ZW2(:,:,:), -PRIS(:,:,:) )
ELSEWHERE
ZW2(:,:,:) = MIN ( ZW2(:,:,:), PRVS(:,:,:) )
END WHERE
!
PRVS(:,:,:) = PRVS(:,:,:) - ZW2(:,:,:)
PRIS(:,:,:) = PRIS(:,:,:) + ZW2(:,:,:)
PTHS(:,:,:) = PTHS(:,:,:) + &
ZW2(:,:,:) * ZLS(:,:,:) / (ZCPH(:,:,:) * PEXNREF(:,:,:))
!
!
END DO ! end of the iterative loop
!
!
!* 5.2 compute the cloud fraction PCLDFR
!
IF ( .NOT. OSUBG_COND ) THEN
WHERE (PRCS(:,:,:) + PRIS(:,:,:) > 1.E-12 / PTSTEP)
PCLDFR(:,:,:) = 1.
ELSEWHERE
PCLDFR(:,:,:) = 0.
ENDWHERE
IF ( SIZE(PSRCS,3) /= 0 ) THEN
PSRCS(:,:,:) = PCLDFR(:,:,:)
END IF
ELSE
!We limit PRC_MF+PRI_MF to PRVS*PTSTEP to avoid negative humidity
ZW1(:,:,:)=PRC_MF(:,:,:)
ZW2(:,:,:)=PRI_MF(:,:,:)
WHERE(ZW1(:,:,:)+ZW2(:,:,:)>PRVS(:,:,:)*PTSTEP)
ZW1(:,:,:)=ZW1(:,:,:)*PRVS(:,:,:)*PTSTEP/(ZW1(:,:,:)+ZW2(:,:,:))
ZW2(:,:,:)=PRVS(:,:,:)*PTSTEP-ZW1(:,:,:)
ENDWHERE
PCLDFR(:,:,:)=MIN(1.,PCLDFR(:,:,:)+PCF_MF(:,:,:))
PRCS(:,:,:)=PRCS(:,:,:)+ZW1(:,:,:)/PTSTEP
PRIS(:,:,:)=PRIS(:,:,:)+ZW2(:,:,:)/PTSTEP
PRVS(:,:,:)=PRVS(:,:,:)-(ZW1(:,:,:)+ZW2(:,:,:))/PTSTEP
PTHS(:,:,:) = PTHS(:,:,:) + &
(ZW1 * ZLV(:,:,:) + ZW2 * ZLS(:,:,:)) / ZCPH(:,:,:) &
/ PEXNREF(:,:,:) /PTSTEP
ENDIF
!
!
!
!* 6. STORE THE BUDGET TERMS
! ----------------------
!
IF (LBUDGET_RV) CALL BUDGET (PRVS(:,:,:) * PRHODJ(:,:,:),6,'DEPI_BU_RRV')
IF (LBUDGET_RC) CALL BUDGET (PRCS(:,:,:) * PRHODJ(:,:,:),7,'DEPI_BU_RRC')
IF (LBUDGET_RI) CALL BUDGET (PRIS(:,:,:) * PRHODJ(:,:,:),9,'DEPI_BU_RRI')
IF (LBUDGET_TH) CALL BUDGET (PTHS(:,:,:) * PRHODJ(:,:,:),4,'DEPI_BU_RTH')
!
!------------------------------------------------------------------------------
!
!
END SUBROUTINE ICE_ADJUST