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  • !MNH_LIC Copyright 1994-2020 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 MODE_PRANDTL
         USE PARKIND1, ONLY : JPRB
         USE YOMHOOK , ONLY : LHOOK, DR_HOOK
    !    #################### 
    !
    !* modification 08/2010  V. Masson  smoothing of the discontinuity in functions 
    !                                   used for implicitation of exchange coefficients
    
    !               05/2020   V. Masson and C. Lac : bug in D_PHI3DTDZ2_O_DDTDZ
    
    USE MODD_DIMPHYEX,   ONLY : DIMPHYEX_t
    
    USE MODD_PARAMETERS, ONLY : JPVEXT_TURB
    
    USE MODI_SHUMAN, ONLY: MZM, MZF
    
    IMPLICIT NONE
    !----------------------------------------------------------------------------
    CONTAINS
    !----------------------------------------------------------------------------
    
          SUBROUTINE PRANDTL(D,CST,CSTURB,KRR,KSV,KRRI,OTURB_DIAG,&
    
                             HTURBDIM,OOCEAN,OHARAT,O2D,OCOMPUTE_SRC,&
    
                             TPFILE,                               &
                             PDXX,PDYY,PDZZ,PDZX,PDZY,             &
                             PTHVREF,PLOCPEXNM,PATHETA,PAMOIST,    &
                             PLM,PLEPS,PTKEM,PTHLM,PRM,PSVM,PSRCM, &
                             PREDTH1,PREDR1,                       &
                             PRED2TH3, PRED2R3, PRED2THR3,         &
                             PREDS1,PRED2THS3, PRED2RS3,           &
                             PBLL_O_E,                             &
                             PETHETA, PEMOIST                      )
    !     ###########################################################
    !
    !
    !!****  *PRANDTL* - routine to compute the Prandtl turbulent numbers
    !!
    !!    PURPOSE
    !!    -------
    !       The purpose of this routine is to compute the Redelsperger 
    !     numbers and then get the turbulent Prandtl and Schmidt numbers:
    !       * for the heat fluxes     - PHI3 = 1/ Prandtl
    !       * for the moisture fluxes - PSI3 = 1/ Schmidt
    !
    !!**  METHOD
    !!    ------
    !!    The following steps are performed:
    !!
    !!     1 - default values of 1 are taken for phi3 and psi3 and different masks
    !!       are defined depending on the presence of turbulence, stratification and
    !!       humidity. The 1D Redelsperger numbers are computed  
    !!         * ZREDTH1 : (g / THVREF ) (LT**2 / TKE ) ETHETA (D Theta / Dz)   
    !!         * ZREDR1  : (g / THVREF ) (LT**2 / TKE ) EMOIST (D TW    / Dz)  
    !!     2 - 3D Redelsperger numbers are computed only for turbulent 
    !!       grid points where  ZREDTH1 or ZREDR1 are > 0.
    !!     3 - PHI3 is  computed only for turbulent grid points where ZREDTH1 > 0
    !!      (turbulent thermally stratified points)
    !!     4 - PSI3 is computed only for turbulent grid points where ZREDR1 > 0
    !!      (turbulent moist points)
    !!    
    !!
    !!    EXTERNAL
    !!    --------
    !!      FUNCTIONs ETHETA and EMOIST  :  
    !!            allows to compute the coefficients 
    !!            for the turbulent correlation between any variable
    !!            and the virtual potential temperature, of its correlations 
    !!            with the conservative potential temperature and the humidity 
    !!            conservative variable:
    !!            -------              -------              -------
    !!            A' Thv'  =  ETHETA   A' Thl'  +  EMOIST   A' Rnp'  
    !!
    !!      GX_M_M, GY_M_M, GZ_M_M :  Cartesian gradient operators
    !!      MZM : Shuman function (mean operator in the z direction)
    !!      Module MODI_ETHETA    : interface module for ETHETA
    !!      Module MODI_EMOIST    : interface module for EMOIST
    !!      Module MODI_SHUMAN    : interface module for Shuman operators
    !!
    !!    IMPLICIT ARGUMENTS
    !!    ------------------
    !!      Module MODD_CST : contains physical constants
    
    !!
    !!      Module MODD_CTURB: contains the set of constants for
    !!                        the turbulence scheme
    
    !!       CSTURB%XCTV,XCPR2    : constants for the turbulent prandtl numbers
    
    !!       XTKEMIN        : minimum value allowed for the TKE
    !!
    !!      Module MODD_PARAMETERS 
    !!       JPVEXT_TURB         : number of vertical marginal points
    !!
    !!    REFERENCE
    !!    ---------
    !!      Book 2 of documentation (routine PRANDTL)
    !!      Book 1 of documentation (Chapter: Turbulence)
    !!
    !!    AUTHOR
    !!    ------
    !!      Joan Cuxart             * INM and Meteo-France *
    !!
    !!    MODIFICATIONS
    !!    -------------
    !!      Original         18/10/94
    !!      Modifications: Feb 14, 1995 (J.Cuxart and J.Stein) 
    !!                                  Doctorization and Optimization
    !!      Modifications: March 21, 1995 (J.M. Carriere) 
    !!                                  Introduction of cloud water
    !!      Modifications: March 21, 1995 (J. Cuxart and J.Stein)
    !!                                  Phi3 and Psi3 at w point + cleaning
    !!      Modifications: July 2, 1995 (J.Cuxart and Ph.Bougeault)
    !!                         change the value of Phi3 and Psi3 if negative
    !!      Modifications: Sept 20, 1995 (J. Stein, J. Cuxart, J.L. Redelsperger)
    !!                         remove the Where + use REDTH1+REDR1 for the tests
    !!      Modifications: October 10, 1995 (J. Cuxart and J.Stein)
    !!                         Psi3 for tPREDS1he scalar variables
    !!      Modifications: February 27, 1996 (J.Stein) optimization
    !!      Modifications: June 15, 1996 (P.Jabouille) return to the previous
    !!                          computation of Phi3 and Psi3
    !!      Modifications: October 10, 1996 (J. Stein) change the temporal
    !!                          discretization
    !!      Modifications: May 23, 1997 (J. Stein) bug in 3D Redels number at ground
    !!                                             with orography
    !!      Modifications: Feb 20, 1998 (J. Stein) bug in all the 3D cases due to
    !!                                             the use of ZW1 instead of ZW2
    !!                     Feb 20, 2003 (JP Pinty) Add PFRAC_ICE
    !!                     July    2005 (Tomas, Masson) implicitation of PHI3 and PSI3
    !!                     October 2009 (G. Tanguy) add ILENCH=LEN(YCOMMENT) after
    !!                                              change of YCOMMENT
    !!                     2012-02 Y. Seity,  add possibility to run with reversed 
    !!                                               vertical levels
    
    !!      Modifications: July 2015    (Wim de Rooy) OHARAT (Racmo turbulence) switch
    
    !!                     2017-09 J.Escobar, use epsilon XMNH_TINY_12 for R*4 
    !!  Philippe Wautelet: 05/2016-04/2018: new data structures and calls for I/O
    !! JL Redelsperger 03/2021 : adding Ocean case for temperature only 
    !! --------------------------------------------------------------------------
    !       
    !*      0. DECLARATIONS
    !          ------------
    !
    USE PARKIND1, ONLY : JPRB
    USE YOMHOOK , ONLY : LHOOK, DR_HOOK
    !
    
    USE MODD_CST, ONLY : CST_t
    USE MODD_CTURB, ONLY : CSTURB_t
    
    USE MODD_DIMPHYEX,   ONLY: DIMPHYEX_t
    
    USE MODD_FIELD,          ONLY: TFIELDDATA, TYPEREAL
    USE MODD_IO,             ONLY: TFILEDATA
    
    USE MODE_EMOIST, ONLY : EMOIST
    USE MODE_ETHETA, ONLY : ETHETA
    
    USE MODI_SHUMAN, ONLY: MZM
    USE MODE_IO_FIELD_WRITE, ONLY: IO_FIELD_WRITE
    !
    IMPLICIT NONE
    !
    !
    !*      0.1  declarations of arguments
    !
    
    TYPE(DIMPHYEX_t),       INTENT(IN)   :: D
    
    TYPE(CST_t),            INTENT(IN)   :: CST
    TYPE(CSTURB_t),         INTENT(IN)   :: CSTURB
    
    INTEGER,                INTENT(IN)   :: KSV           ! number of scalar variables
    
    
    INTEGER,                INTENT(IN)   :: KRR           ! number of moist var.
    INTEGER,                INTENT(IN)   :: KRRI          ! number of ice var.
    !
    LOGICAL,                INTENT(IN)   ::  OTURB_DIAG   ! switch to write some
                                     ! diagnostic fields in the syncronous FM-file
    
    LOGICAL,                INTENT(IN)   ::  OOCEAN       ! switch for Ocean model version
    
    LOGICAL,                INTENT(IN)   ::  OCOMPUTE_SRC ! flag to define dimensions of SIGS and
    
    LOGICAL, INTENT(IN) :: O2D               ! Logical for 2D model version (modd_conf)
    
    CHARACTER(LEN=4),       INTENT(IN)   ::  HTURBDIM     ! Kind of turbulence param.
    TYPE(TFILEDATA),        INTENT(IN)   ::  TPFILE       ! Output file
    
    REAL, DIMENSION(D%NIT,D%NJT,D%NKT), INTENT(IN)   ::  PDXX,PDYY,PDZZ,PDZX,PDZY
    
    REAL, DIMENSION(D%NIT,D%NJT,D%NKT), INTENT(IN)   ::  PTHVREF  ! Virtual Potential Temp.
    
    REAL, DIMENSION(D%NIT,D%NJT,D%NKT), INTENT(IN)   ::  PLOCPEXNM ! Lv(T)/Cp/Exner at t-1 
    REAL, DIMENSION(D%NIT,D%NJT,D%NKT), INTENT(IN)   ::  PATHETA      ! coefficients between 
    REAL, DIMENSION(D%NIT,D%NJT,D%NKT), INTENT(IN)   ::  PAMOIST      ! s and Thetal and Rnp
    
    REAL, DIMENSION(D%NIT,D%NJT,D%NKT), INTENT(IN)   ::  PLM      ! Turbulent Mixing length
    REAL, DIMENSION(D%NIT,D%NJT,D%NKT), INTENT(IN)   ::  PLEPS    ! Dissipative length
    REAL, DIMENSION(D%NIT,D%NJT,D%NKT), INTENT(IN)   ::  PTHLM,PTKEM! Conservative Potential 
    
    REAL, DIMENSION(D%NIT,D%NJT,D%NKT,KRR), INTENT(IN) ::  PRM      ! Mixing ratios at  t-1
    
                                                      ! with PRM(:,:,:,1) = cons.
                                                      ! mixing ratio
    
    REAL, DIMENSION(D%NIT,D%NJT,D%NKT,KSV), INTENT(IN) ::  PSVM     ! Scalars at t-1      
    REAL, DIMENSION(MERGE(D%NIT,0,OCOMPUTE_SRC),&
                    MERGE(D%NJT,0,OCOMPUTE_SRC),&
                    MERGE(D%NKT,0,OCOMPUTE_SRC)),  INTENT(IN)   ::  PSRCM
    
                                      ! s'r'c/2Sigma_s2 at t-1 multiplied by Lambda_3
    !
    !
    
    REAL, DIMENSION(D%NIT,D%NJT,D%NKT), INTENT(OUT)  ::  PREDTH1 ! Redelsperger number R_theta
    REAL, DIMENSION(D%NIT,D%NJT,D%NKT), INTENT(OUT)  ::  PREDR1  ! Redelsperger number R_q
    REAL, DIMENSION(D%NIT,D%NJT,D%NKT), INTENT(OUT)  ::  PRED2TH3 ! Redelsperger number R*2_theta
    REAL, DIMENSION(D%NIT,D%NJT,D%NKT), INTENT(OUT)  ::  PRED2R3  ! Redelsperger number R*2_q
    REAL, DIMENSION(D%NIT,D%NJT,D%NKT), INTENT(OUT)  ::  PRED2THR3! Redelsperger number R*2_thq
    REAL, DIMENSION(D%NIT,D%NJT,D%NKT,KSV), INTENT(OUT)::  PREDS1   ! Redelsperger number R_s
    REAL, DIMENSION(D%NIT,D%NJT,D%NKT,KSV), INTENT(OUT)::  PRED2THS3! Redelsperger number R*2_thsv
    REAL, DIMENSION(D%NIT,D%NJT,D%NKT,KSV), INTENT(OUT)::  PRED2RS3 ! Redelsperger number R*2_qsv
    REAL, DIMENSION(D%NIT,D%NJT,D%NKT), INTENT(OUT)  ::  PBLL_O_E! beta*Lk*Leps/tke
    REAL, DIMENSION(D%NIT,D%NJT,D%NKT), INTENT(OUT)  ::  PETHETA ! coefficient E_theta
    REAL, DIMENSION(D%NIT,D%NJT,D%NKT), INTENT(OUT)  ::  PEMOIST ! coefficient E_moist
    
    REAL, DIMENSION(D%NIT,D%NJT,D%NKT) ::  &
                      ZW1, ZW2, ZW3, &
    
                      ZWORK1,ZWORK2,ZWORK3 
    !                                                 working variables for explicit array
    
    !                                                     
    INTEGER :: IKB      ! vertical index value for the first inner mass point
    INTEGER :: IKE      ! vertical index value for the last inner mass point
    
    INTEGER::  JSV,JI,JJ,JK ! loop index
    
    
    INTEGER :: JLOOP
    REAL    :: ZMINVAL
    TYPE(TFIELDDATA)  :: TZFIELD
    ! ---------------------------------------------------------------------------
    !
    !*      1.  DEFAULT VALUES,  1D REDELSPERGER NUMBERS 
    !           ----------------------------------------
    !
    REAL(KIND=JPRB) :: ZHOOK_HANDLE
    IF (LHOOK) CALL DR_HOOK('PRANDTL',0,ZHOOK_HANDLE)
    
    
    PREDTH1(:,:,:)=0.
    PREDR1(:,:,:)=0.
    PRED2TH3(:,:,:)=0.
    PRED2R3(:,:,:)=0.
    PRED2THR3(:,:,:)=0.
    PREDS1(:,:,:,:)=0.
    PRED2THS3(:,:,:,:)=0.
    PRED2RS3(:,:,:,:)=0.
    PBLL_O_E(:,:,:)=0.
    ENDIF
    !
    
    PETHETA(:,:,:) = MZM(ETHETA(D,CST,KRR,KRRI,PTHLM,PRM,PLOCPEXNM,PATHETA,PSRCM,OOCEAN,OCOMPUTE_SRC), D%NKA, D%NKU, D%NKL)
    PEMOIST(:,:,:) = MZM(EMOIST(D,CST,KRR,KRRI,PTHLM,PRM,PLOCPEXNM,PAMOIST,PSRCM,OOCEAN), D%NKA, D%NKU, D%NKL)
    
    !$mnh_expand_array(JI=1:D%NIT,JJ=1:D%NJT)
    
    PETHETA(:,:,D%NKA) = 2.*PETHETA(:,:,IKB) - PETHETA(:,:,IKB+D%NKL)
    PEMOIST(:,:,D%NKA) = 2.*PEMOIST(:,:,IKB) - PEMOIST(:,:,IKB+D%NKL)
    
    !$mnh_end_expand_array(JI=1:D%NIT,JJ=1:D%NJT)
    
    !
    !---------------------------------------------------------------------------
    
    PBLL_O_E(:,:,:) = MZM(CST%XG / PTHVREF(:,:,:) * PLM(:,:,:) * PLEPS(:,:,:) / PTKEM(:,:,:), D%NKA, D%NKU, D%NKL)
    
    ZWORK1 =  GZ_M_W(D%NKA, D%NKU, D%NKL,PTHLM,PDZZ)
    
      ZWORK2 =  GZ_M_W(D%NKA, D%NKU, D%NKL,PRM(:,:,:,1),PDZZ)
      !$mnh_expand_array(JI=1:D%NIT,JJ=1:D%NJT,JK=1:D%NKT)
      PREDTH1(:,:,:)= CSTURB%XCTV*PBLL_O_E(:,:,:) * PETHETA(:,:,:) * ZWORK1(:,:,:)
      PREDR1(:,:,:) = CSTURB%XCTV*PBLL_O_E(:,:,:) * PEMOIST(:,:,:) * ZWORK2(:,:,:)
      !$mnh_end_expand_array(JI=1:D%NIT,JJ=1:D%NJT,JK=1:D%NKT)
    
      !$mnh_expand_array(JI=1:D%NIT,JJ=1:D%NJT,JK=1:D%NKT)
      PREDTH1(:,:,:)= CSTURB%XCTV*PBLL_O_E(:,:,:)  * ZWORK1(:,:,:)
    
      !$mnh_end_expand_array(JI=1:D%NIT,JJ=1:D%NJT,JK=1:D%NKT)
    
    END IF
    !
    !       3. Limits on 1D Redelperger numbers
    !          --------------------------------
    !
    
    DO JK=1,D%NKT 
     DO JJ=1,D%NJT 
      DO JI=1,D%NIT 
       ZW1(JI,JJ,JK) = 1.
       ZW2(JI,JJ,JK) = 1.
       !
       IF (PREDTH1(JI,JJ,JK)+PREDR1(JI,JJ,JK)<-ZMINVAL)THEN
        ZW1(JI,JJ,JK) = (-ZMINVAL) / (PREDTH1(JI,JJ,JK)+PREDR1(JI,JJ,JK))
       ENDIF
       !
       IF (PREDTH1(JI,JJ,JK)<-ZMINVAL)THEN
        ZW2(JI,JJ,JK) = (-ZMINVAL) / (PREDTH1(JI,JJ,JK))
       ENDIF
       ZW2(JI,JJ,JK) = MIN(ZW1(JI,JJ,JK),ZW2(JI,JJ,JK))
       !
       ZW1(JI,JJ,JK) = 1.
       IF (PREDR1(JI,JJ,JK)<-ZMINVAL)THEN
        ZW1(JI,JJ,JK) = (-ZMINVAL) / (PREDR1(JI,JJ,JK))
       ENDIF
       ZW1(JI,JJ,JK) = MIN(ZW2(JI,JJ,JK),ZW1(JI,JJ,JK))
       !
       !
       !       3. Modification of Mixing length and dissipative length
       !          ----------------------------------------------------
       !
       PBLL_O_E(JI,JJ,JK) = PBLL_O_E(JI,JJ,JK) * ZW1(JI,JJ,JK)
       PREDTH1(JI,JJ,JK)  = PREDTH1(JI,JJ,JK)  * ZW1(JI,JJ,JK)
       PREDR1(JI,JJ,JK)   = PREDR1(JI,JJ,JK)   * ZW1(JI,JJ,JK)
       !
       !       4. Threshold for very small (in absolute value) Redelperger numbers
       !          ----------------------------------------------------------------
       !
       IF(PREDTH1(JI,JJ,JK) < 0.) THEN
        ZW2(JI,JJ,JK)=-1.
       ELSE
        ZW2(JI,JJ,JK)=1.
       END IF
       PREDTH1(JI,JJ,JK)= ZW2(JI,JJ,JK) * MAX(1.E-30, ZW2(JI,JJ,JK)*PREDTH1(JI,JJ,JK))
       !
       IF (KRR /= 0) THEN                ! moist case
        IF(PREDR1(JI,JJ,JK) < 0.) THEN
         ZW2(JI,JJ,JK)=-1.
        ELSE
         ZW2(JI,JJ,JK)=1.
        END IF
        PREDR1(JI,JJ,JK)= ZW2(JI,JJ,JK) * MAX(1.E-30, ZW2(JI,JJ,JK)*PREDR1(JI,JJ,JK))
       END IF
      ENDDO
     ENDDO
    ENDDO
    
    !
    !
    !---------------------------------------------------------------------------
    !
    !          For the scalar variables
    
      ZWORK1 = GZ_M_W(D%NKA, D%NKU, D%NKL,PSVM(:,:,:,JSV),PDZZ)
      !$mnh_expand_array(JI=1:D%NIT,JJ=1:D%NJT,JK=1:D%NKT)
      PREDS1(:,:,:,JSV)=CSTURB%XCTV*PBLL_O_E(:,:,:)*ZWORK1(:,:,:)
      !$mnh_end_expand_array(JI=1:D%NIT,JJ=1:D%NJT,JK=1:D%NKT)
    
     DO JK=1,D%NKT 
      DO JJ=1,D%NJT 
       DO JI=1,D%NIT 
        IF(PREDS1(JI,JJ,JK,JSV) < 0.) THEN
         ZW2(JI,JJ,JK)=-1.
        ELSE
         ZW2(JI,JJ,JK)=1.
        END IF
        PREDS1(JI,JJ,JK,JSV)= ZW2(JI,JJ,JK) * MAX(1.E-30, ZW2(JI,JJ,JK)*PREDS1(JI,JJ,JK,JSV))
       ENDDO
      ENDDO
     ENDDO
    ENDDO
    
    !
    !---------------------------------------------------------------------------
    !
    !*      2.  3D REDELSPERGER NUMBERS
    !           ------------------------
    !
    IF(HTURBDIM=='1DIM') THEN        ! 1D case
    !
    !
    
      !$mnh_expand_array(JI=1:D%NIT,JJ=1:D%NJT,JK=1:D%NKT)
    
      PRED2TH3(:,:,:)  = PREDTH1(:,:,:)**2
    !
      PRED2R3(:,:,:)   = PREDR1(:,:,:) **2
    !
      PRED2THR3(:,:,:) = PREDTH1(:,:,:) * PREDR1(:,:,:)
    
      !$mnh_end_expand_array(JI=1:D%NIT,JJ=1:D%NJT,JK=1:D%NKT)
    
        ZWORK1 = MZM(GX_M_M(PTHLM,PDXX,PDZZ,PDZX, D%NKA, D%NKU, D%NKL)**2, D%NKA, D%NKU, D%NKL)
    
        ZWORK2 = MZM(GX_M_M(PRM(:,:,:,1),PDXX,PDZZ,PDZX, D%NKA, D%NKU, D%NKL)**2, D%NKA, D%NKU, D%NKL)
        ZWORK3 = MZM(GX_M_M(PRM(:,:,:,1),PDXX,PDZZ,PDZX, D%NKA, D%NKU, D%NKL)*     &
                     GX_M_M(PTHLM,PDXX,PDZZ,PDZX, D%NKA, D%NKU, D%NKL), D%NKA, D%NKU, D%NKL)
    !
        !$mnh_expand_array(JI=1:D%NIT,JJ=1:D%NJT,JK=1:D%NKT)
    
        PRED2TH3(:,:,:)= PREDTH1(:,:,:)**2+(CSTURB%XCTV*PBLL_O_E(:,:,:)*PETHETA(:,:,:) )**2 * &
    
        PRED2R3(:,:,:)= PREDR1(:,:,:)**2 + (CSTURB%XCTV*PBLL_O_E(:,:,:)*PEMOIST(:,:,:))**2 * &
    
        PRED2THR3(:,:,:)= PREDR1(:,:,:) * PREDTH1(:,:,:) +  CSTURB%XCTV**2*PBLL_O_E(:,:,:)**2 *   &
    
                          PEMOIST(:,:,:) * PETHETA(:,:,:) *                         &
                          ZWORK3(:,:,:)
        !$mnh_end_expand_array(JI=1:D%NIT,JJ=1:D%NJT,JK=1:D%NKT)
    !
        PRED2TH3(:,:,IKB)=PRED2TH3(:,:,IKB+D%NKL)
        PRED2R3(:,:,IKB)=PRED2R3(:,:,IKB+D%NKL) 
    
        PRED2THR3(:,:,IKB)=PRED2THR3(:,:,IKB+D%NKL)
    
        !$mnh_expand_array(JI=1:D%NIT,JJ=1:D%NJT,JK=1:D%NKT)
    
        PRED2TH3(:,:,:) = PREDTH1(:,:,:)**2 +  CSTURB%XCTV**2*PBLL_O_E(:,:,:)**2 *     &
    
                          ZWORK1(:,:,:)      
        !$mnh_end_expand_array(JI=1:D%NIT,JJ=1:D%NJT,JK=1:D%NKT)
    
        PRED2TH3(:,:,IKB)=PRED2TH3(:,:,IKB+D%NKL)
    
    !
        PRED2R3(:,:,:) = 0.
    !
        PRED2THR3(:,:,:) = 0.
    !
      END IF
    !
    ELSE                                 ! 3D case in a 3D model
    !
    
      ZWORK1 = MZM(GX_M_M(PTHLM,PDXX,PDZZ,PDZX, D%NKA, D%NKU, D%NKL)**2 &
          + GY_M_M(PTHLM,PDYY,PDZZ,PDZY, D%NKA, D%NKU, D%NKL)**2, D%NKA, D%NKU, D%NKL)
    
    
        ZWORK2 = MZM(GX_M_M(PRM(:,:,:,1),PDXX,PDZZ,PDZX, D%NKA, D%NKU, D%NKL)**2 + &
            GY_M_M(PRM(:,:,:,1),PDYY,PDZZ,PDZY, D%NKA, D%NKU, D%NKL)**2, D%NKA, D%NKU, D%NKL)
        ZWORK3 = MZM(GX_M_M(PRM(:,:,:,1),PDXX,PDZZ,PDZX, D%NKA, D%NKU, D%NKL)*   &
             GX_M_M(PTHLM,PDXX,PDZZ,PDZX, D%NKA, D%NKU, D%NKL)+                           &
             GY_M_M(PRM(:,:,:,1),PDYY,PDZZ,PDZY, D%NKA, D%NKU, D%NKL)*                    &
             GY_M_M(PTHLM,PDYY,PDZZ,PDZY, D%NKA, D%NKU, D%NKL), D%NKA, D%NKU, D%NKL)
    
        !$mnh_expand_array(JI=1:D%NIT,JJ=1:D%NJT,JK=1:D%NKT)
    
        PRED2TH3(:,:,:)= PREDTH1(:,:,:)**2 +  ( CSTURB%XCTV*PBLL_O_E(:,:,:)*PETHETA(:,:,:) )**2 * &
    
        PRED2R3(:,:,:)= PREDR1(:,:,:)**2 + (CSTURB%XCTV*PBLL_O_E(:,:,:)*PEMOIST(:,:,:))**2 *      &
    
        PRED2THR3(:,:,:)= PREDR1(:,:,:) * PREDTH1(:,:,:) +  CSTURB%XCTV**2*PBLL_O_E(:,:,:)**2 *   &
    
             PEMOIST(:,:,:) * PETHETA(:,:,:) * ZWORK3(:,:,:)
    
        !$mnh_end_expand_array(JI=1:D%NIT,JJ=1:D%NJT,JK=1:D%NKT)
    !
        PRED2TH3(:,:,IKB)=PRED2TH3(:,:,IKB+D%NKL)
        PRED2R3(:,:,IKB)=PRED2R3(:,:,IKB+D%NKL)
    
        PRED2THR3(:,:,IKB)=PRED2THR3(:,:,IKB+D%NKL)
    
        !$mnh_expand_array(JI=1:D%NIT,JJ=1:D%NJT,JK=1:D%NKT)
    
        PRED2TH3(:,:,:) = PREDTH1(:,:,:)**2 +  CSTURB%XCTV**2*PBLL_O_E(:,:,:)**2 *                &
    
                          ZWORK1(:,:,:)
        !$mnh_end_expand_array(JI=1:D%NIT,JJ=1:D%NJT,JK=1:D%NKT)
    ! 
    
        PRED2TH3(:,:,IKB)=PRED2TH3(:,:,IKB+D%NKL)
    
    !
        PRED2R3(:,:,:) = 0.
    !
        PRED2THR3(:,:,:) = 0.
    !
      END IF
    !
    END IF   ! end of the if structure on the turbulence dimensionnality
    !
    !
    !---------------------------------------------------------------------------
    !
    !           5. Prandtl numbers for scalars
    !              ---------------------------
    
        !$mnh_expand_array(JI=1:D%NIT,JJ=1:D%NJT,JK=1:D%NKT)
    
        PRED2THS3(:,:,:,JSV)  = PREDS1(:,:,:,JSV) * PREDTH1(:,:,:)
        IF (KRR /= 0) THEN
          PRED2RS3(:,:,:,JSV)   = PREDR1(:,:,:) *PREDS1(:,:,:,JSV)
        ELSE
          PRED2RS3(:,:,:,JSV)   = 0.
        END IF
    
        !$mnh_end_expand_array(JI=1:D%NIT,JJ=1:D%NJT,JK=1:D%NKT)
    
        ZW1 = MZM((CST%XG / PTHVREF * PLM * PLEPS / PTKEM)**2, D%NKA, D%NKU, D%NKL)
        ZWORK2 = MZM(GX_M_M(PSVM(:,:,:,JSV),PDXX,PDZZ,PDZX, D%NKA, D%NKU, D%NKL)*       &
                               GX_M_M(PTHLM,PDXX,PDZZ,PDZX, D%NKA, D%NKU, D%NKL),                 &
                               D%NKA, D%NKU, D%NKL)
        ZWORK3 =  MZM(GX_M_M(PSVM(:,:,:,JSV),PDXX,PDZZ,PDZX, D%NKA, D%NKU, D%NKL)*       &
                               GX_M_M(PRM(:,:,:,1),PDXX,PDZZ,PDZX, D%NKA, D%NKU, D%NKL),          &
                               D%NKA, D%NKU, D%NKL)
    !
        !$mnh_expand_array(JI=1:D%NIT,JJ=1:D%NJT,JK=1:D%NKT)    
    
          ZWORK1 = ZW1(:,:,:)*PETHETA(:,:,:)
    
        END IF
        PRED2THS3(:,:,:,JSV) = PREDTH1(:,:,:) * PREDS1(:,:,:,JSV)   +        &
    
                           ZWORK1(:,:,:) * ZWORK2(:,:,:)
                           !
    
        IF (KRR /= 0) THEN
          PRED2RS3(:,:,:,JSV) = PREDR1(:,:,:) * PREDS1(:,:,:,JSV)   +        &
    
                           ZW1(:,:,:) * PEMOIST(:,:,:) * ZWORK3(:,:,:)
    
        !$mnh_end_expand_array(JI=1:D%NIT,JJ=1:D%NJT,JK=1:D%NKT)
    
        ZW1 = MZM((CST%XG / PTHVREF * PLM * PLEPS / PTKEM)**2, D%NKA, D%NKU, D%NKL)
        ZWORK2 =  MZM(GX_M_M(PSVM(:,:,:,JSV),PDXX,PDZZ,PDZX, D%NKA, D%NKU, D%NKL)*       &
    
                               GX_M_M(PTHLM,PDXX,PDZZ,PDZX, D%NKA, D%NKU, D%NKL)                  &
                              +GY_M_M(PSVM(:,:,:,JSV),PDYY,PDZZ,PDZY, D%NKA, D%NKU, D%NKL)*       &
                               GY_M_M(PTHLM,PDYY,PDZZ,PDZY, D%NKA, D%NKU, D%NKL),                 &
                               D%NKA, D%NKU, D%NKL)
    
        ZWORK3 =  MZM(GX_M_M(PSVM(:,:,:,JSV),PDXX,PDZZ,PDZX, D%NKA, D%NKU, D%NKL)*       &
    
                               GX_M_M(PRM(:,:,:,1),PDXX,PDZZ,PDZX, D%NKA, D%NKU, D%NKL)           &
                              +GY_M_M(PSVM(:,:,:,JSV),PDYY,PDZZ,PDZY, D%NKA, D%NKU, D%NKL)*       &
                               GY_M_M(PRM(:,:,:,1),PDYY,PDZZ,PDZY, D%NKA, D%NKU, D%NKL),          &
                               D%NKA, D%NKU, D%NKL)
    
    
        !$mnh_expand_array(JI=1:D%NIT,JJ=1:D%NJT,JK=1:D%NKT)    
        IF (KRR /= 0) THEN
          ZWORK1 = ZW1(:,:,:)*PETHETA(:,:,:)
        ELSE
          ZWORK1 = ZW1(:,:,:)
        END IF
        PRED2THS3(:,:,:,JSV) = PREDTH1(:,:,:) * PREDS1(:,:,:,JSV)   +        &
                           ZWORK1(:,:,:)*ZWORK2(:,:,:)
                          !
        IF (KRR /= 0) THEN
          PRED2RS3(:,:,:,JSV) = PREDR1(:,:,:) * PREDS1(:,:,:,JSV)   +        &
                           ZW1(:,:,:) * PEMOIST(:,:,:) * ZWORK3(:,:,:)
    
        !$mnh_end_expand_array(JI=1:D%NIT,JJ=1:D%NJT,JK=1:D%NKT)    
    
    !
      END IF ! end of HTURBDIM if-block
    !
    END DO
    !
    !---------------------------------------------------------------------------
    !
    !*          6. SAVES THE REDELSPERGER NUMBERS
    !              ------------------------------
    !
    IF ( OTURB_DIAG .AND. TPFILE%LOPENED ) THEN
      !
      ! stores the RED_TH1
      TZFIELD%CMNHNAME   = 'RED_TH1'
      TZFIELD%CSTDNAME   = ''
      TZFIELD%CLONGNAME  = 'RED_TH1'
      TZFIELD%CUNITS     = '1'
      TZFIELD%CDIR       = 'XY'
      TZFIELD%CCOMMENT   = 'X_Y_Z_RED_TH1'
      TZFIELD%NGRID      = 4
      TZFIELD%NTYPE      = TYPEREAL
      TZFIELD%NDIMS      = 3
      TZFIELD%LTIMEDEP   = .TRUE.
      CALL IO_Field_write(TPFILE,TZFIELD,PREDTH1)
      !
      ! stores the RED_R1
      TZFIELD%CMNHNAME   = 'RED_R1'
      TZFIELD%CSTDNAME   = ''
      TZFIELD%CLONGNAME  = 'RED_R1'
      TZFIELD%CUNITS     = '1'
      TZFIELD%CDIR       = 'XY'
      TZFIELD%CCOMMENT   = 'X_Y_Z_RED_R1'
      TZFIELD%NGRID      = 4
      TZFIELD%NTYPE      = TYPEREAL
      TZFIELD%NDIMS      = 3
      TZFIELD%LTIMEDEP   = .TRUE.
      CALL IO_Field_write(TPFILE,TZFIELD,PREDR1)
      !
      ! stores the RED2_TH3
      TZFIELD%CMNHNAME   = 'RED2_TH3'
      TZFIELD%CSTDNAME   = ''
      TZFIELD%CLONGNAME  = 'RED2_TH3'
      TZFIELD%CUNITS     = '1'
      TZFIELD%CDIR       = 'XY'
      TZFIELD%CCOMMENT   = 'X_Y_Z_RED2_TH3'
      TZFIELD%NGRID      = 4
      TZFIELD%NTYPE      = TYPEREAL
      TZFIELD%NDIMS      = 3
      TZFIELD%LTIMEDEP   = .TRUE.
      CALL IO_Field_write(TPFILE,TZFIELD,PRED2TH3)
      !
      ! stores the RED2_R3
      TZFIELD%CMNHNAME   = 'RED2_R3'
      TZFIELD%CSTDNAME   = ''
      TZFIELD%CLONGNAME  = 'RED2_R3'
      TZFIELD%CUNITS     = '1'
      TZFIELD%CDIR       = 'XY'
      TZFIELD%CCOMMENT   = 'X_Y_Z_RED2_R3'
      TZFIELD%NGRID      = 4
      TZFIELD%NTYPE      = TYPEREAL
      TZFIELD%NDIMS      = 3
      TZFIELD%LTIMEDEP   = .TRUE.
      CALL IO_Field_write(TPFILE,TZFIELD,PRED2R3)
      !
      ! stores the RED2_THR3
      TZFIELD%CMNHNAME   = 'RED2_THR3'
      TZFIELD%CSTDNAME   = ''
      TZFIELD%CLONGNAME  = 'RED2_THR3'
      TZFIELD%CUNITS     = '1'
      TZFIELD%CDIR       = 'XY'
      TZFIELD%CCOMMENT   = 'X_Y_Z_RED2_THR3'
      TZFIELD%NGRID      = 4
      TZFIELD%NTYPE      = TYPEREAL
      TZFIELD%NDIMS      = 3
      TZFIELD%LTIMEDEP   = .TRUE.
      CALL IO_Field_write(TPFILE,TZFIELD,PRED2THR3)
      !
    END IF
    !
    !---------------------------------------------------------------------------
    
    !
    IF (LHOOK) CALL DR_HOOK('PRANDTL',1,ZHOOK_HANDLE)
    END SUBROUTINE PRANDTL
    !
    
    SUBROUTINE SMOOTH_TURB_FUNCT(D,CSTURB,PPHI3,PF_LIM,PF)
    
    TYPE(DIMPHYEX_t),       INTENT(IN)   :: D
    REAL, DIMENSION(D%NIT,D%NJT,D%NKT), INTENT(IN)    :: PPHI3   ! Phi3
    REAL, DIMENSION(D%NIT,D%NJT,D%NKT), INTENT(IN)    :: PF_LIM  ! Value of F when Phi3 is
    
    REAL, DIMENSION(D%NIT,D%NJT,D%NKT), INTENT(INOUT) :: PF      ! function F to smooth
    
    REAL, DIMENSION(D%NIT,D%NJT,D%NKT) :: ZCOEF
    
    !
    !* adds a artificial correction to smooth the function near the discontinuity
    !  point at Phi3 = Phi_lim
    !  This smoothing is applied between 0.9*phi_lim (=2.7) and Phi_lim (=3)
    !   Note that in the Boundary layer, phi is usually between 0.8 and 1
    !
    !
    
    !$mnh_expand_array(JI=1:D%NIT,JJ=1:D%NJT,JK=1:D%NKT)    
    ZCOEF(:,:,:) = MAX(MIN((  10.*(1.-PPHI3(:,:,:)/CSTURB%XPHI_LIM)) ,1.), 0.) 
    
    PF(:,:,:) =     ZCOEF(:,:,:)   * PF(:,:,:)    &
              + (1.-ZCOEF(:,:,:))  * PF_LIM(:,:,:)
    !$mnh_end_expand_array(JI=1:D%NIT,JJ=1:D%NJT,JK=1:D%NKT)    
    
    !
    END SUBROUTINE SMOOTH_TURB_FUNCT
    !----------------------------------------------------------------------------
    
    FUNCTION PHI3(D,CSTURB,PREDTH1,PREDR1,PRED2TH3,PRED2R3,PRED2THR3,HTURBDIM,OUSERV)
    
      TYPE(DIMPHYEX_t),                   INTENT(IN)   :: D
      REAL, DIMENSION(D%NIT,D%NJT,D%NKT), INTENT(IN) :: PREDTH1
      REAL, DIMENSION(D%NIT,D%NJT,D%NKT), INTENT(IN) :: PREDR1
      REAL, DIMENSION(D%NIT,D%NJT,D%NKT), INTENT(IN) :: PRED2TH3
      REAL, DIMENSION(D%NIT,D%NJT,D%NKT), INTENT(IN) :: PRED2R3
      REAL, DIMENSION(D%NIT,D%NJT,D%NKT), INTENT(IN) :: PRED2THR3
      CHARACTER(LEN=4),       INTENT(IN) :: HTURBDIM  ! 1DIM or 3DIM turb. scheme
    
      LOGICAL,                INTENT(IN) :: OUSERV    ! flag to use vapor
    
      REAL, DIMENSION(D%NIT,D%NJT,D%NKT) :: PHI3
    
      REAL, DIMENSION(D%NIT,D%NJT,D%NKT) :: ZW1, ZW2
    
      INTEGER :: IKB, IKE, JI,JJ,JK
    
    !
    REAL(KIND=JPRB) :: ZHOOK_HANDLE
    IF (LHOOK) CALL DR_HOOK('MODE_PRANDTL:PHI3',0,ZHOOK_HANDLE)
    IKB = 1+JPVEXT_TURB
    IKE = SIZE(PREDTH1,3)-JPVEXT_TURB
    !
    IF (HTURBDIM=='3DIM') THEN
            !* 3DIM case
    
      !$mnh_expand_array(JI=1:D%NIT,JJ=1:D%NJT,JK=1:D%NKT)    
    
      IF (OUSERV) THEN
        ZW1(:,:,:) = 1. + 1.5* (PREDTH1(:,:,:)+PREDR1(:,:,:)) +      &
                       ( 0.5 * (PREDTH1(:,:,:)**2+PREDR1(:,:,:)**2)  &
                             + PREDTH1(:,:,:) * PREDR1(:,:,:)        &
                       )
    
        ZW2(:,:,:) = 0.5 * (PRED2TH3(:,:,:)-PRED2R3(:,:,:))
    
        PHI3(:,:,:)= 1. -                                          &
        ( ( (1.+PREDR1(:,:,:)) *                                   &
            (PRED2THR3(:,:,:) + PRED2TH3(:,:,:)) / PREDTH1(:,:,:)  &
          ) + ZW2(:,:,:)                                           &
        ) / ZW1(:,:,:)
      ELSE
        ZW1(:,:,:) = 1. + 1.5* PREDTH1(:,:,:) + &
                     0.5* PREDTH1(:,:,:)**2
    
        ZW2(:,:,:) = 0.5* PRED2TH3(:,:,:)
    
        PHI3(:,:,:)= 1. -                                       &
                (PRED2TH3(:,:,:) / PREDTH1(:,:,:) + ZW2(:,:,:)) / ZW1(:,:,:)
      END IF
    
      !$mnh_end_expand_array(JI=1:D%NIT,JJ=1:D%NJT,JK=1:D%NKT)    
    
      !$mnh_expand_where(JI=1:D%NIT,JJ=1:D%NJT,JK=1:D%NKT)    
      WHERE( PHI3(:,:,:) <= 0. .OR. PHI3(:,:,:) > CSTURB%XPHI_LIM )
        PHI3(:,:,:) = CSTURB%XPHI_LIM
      END WHERE
      !$mnh_end_expand_where(JI=1:D%NIT,JJ=1:D%NJT,JK=1:D%NKT)    
    
      !$mnh_expand_array(JI=1:D%NIT,JJ=1:D%NJT,JK=1:D%NKT)    
    
      IF (OUSERV) THEN
        PHI3(:,:,:)= 1./(1.+PREDTH1(:,:,:)+PREDR1(:,:,:))
      ELSE
        PHI3(:,:,:)= 1./(1.+PREDTH1(:,:,:))
      END IF
    
      !$mnh_end_expand_array(JI=1:D%NIT,JJ=1:D%NJT,JK=1:D%NKT)    
    
    END IF
    !
    PHI3(:,:,IKB-1)=PHI3(:,:,IKB)
    PHI3(:,:,IKE+1)=PHI3(:,:,IKE)
    !
    IF (LHOOK) CALL DR_HOOK('MODE_PRANDTL:PHI3',1,ZHOOK_HANDLE)
    END FUNCTION PHI3
    !----------------------------------------------------------------------------
    
    FUNCTION PSI_SV(D,CSTURB,KSV,PREDTH1,PREDR1,PREDS1,PRED2THS,PRED2RS,PPHI3,PPSI3)
      TYPE(CSTURB_t),                  INTENT(IN)      :: CSTURB
      TYPE(DIMPHYEX_t),                INTENT(IN)      :: D
      INTEGER,                         INTENT(IN)      :: KSV
      REAL, DIMENSION(D%NIT,D%NJT,D%NKT),   INTENT(IN) :: PREDTH1
      REAL, DIMENSION(D%NIT,D%NJT,D%NKT),   INTENT(IN) :: PREDR1
      REAL, DIMENSION(D%NIT,D%NJT,D%NKT,KSV), INTENT(IN) :: PREDS1
      REAL, DIMENSION(D%NIT,D%NJT,D%NKT,KSV), INTENT(IN) :: PRED2THS
      REAL, DIMENSION(D%NIT,D%NJT,D%NKT,KSV), INTENT(IN) :: PRED2RS
      REAL, DIMENSION(D%NIT,D%NJT,D%NKT),   INTENT(IN) :: PPHI3
      REAL, DIMENSION(D%NIT,D%NJT,D%NKT),   INTENT(IN) :: PPSI3
      REAL, DIMENSION(D%NIT,D%NJT,D%NKT,KSV) :: PSI_SV
    
      INTEGER :: JSV,JI,JJ,JK
    
    !
    REAL(KIND=JPRB) :: ZHOOK_HANDLE
    IF (LHOOK) CALL DR_HOOK('MODE_PRANDTL:PSI_SV',0,ZHOOK_HANDLE)
    IKB = 1+JPVEXT_TURB
    IKE = SIZE(PREDTH1,3)-JPVEXT_TURB
    !
    DO JSV=1,SIZE(PSI_SV,4)
    
      !$mnh_expand_array(JI=1:D%NIT,JJ=1:D%NJT,JK=1:D%NKT)    
    
        - (CSTURB%XCPR3+CSTURB%XCPR5) * (PRED2THS(:,:,:,JSV)/PREDS1(:,:,:,JSV)-PREDTH1(:,:,:)) &
        - (CSTURB%XCPR4+CSTURB%XCPR5) * (PRED2RS(:,:,:,JSV)/PREDS1(:,:,:,JSV)-PREDR1(:,:,:)) &
        - CSTURB%XCPR3 * PREDTH1(:,:,:) * PPHI3(:,:,:) - CSTURB%XCPR4 * PREDR1(:,:,:) * PPSI3(:,:,:)                 &
                    ) / (  1. + CSTURB%XCPR5 * ( PREDTH1(:,:,:) + PREDR1(:,:,:) ) )           
    
      !$mnh_end_expand_array(JI=1:D%NIT,JJ=1:D%NJT,JK=1:D%NKT)    
    
    !        control of the PSI_SV positivity
    
      !$mnh_expand_where(JI=1:D%NIT,JJ=1:D%NJT,JK=1:D%NKT)    
      WHERE ( (PSI_SV(:,:,:,JSV) <=0.).AND. (PREDTH1(:,:,:)+PREDR1(:,:,:)) <= 0. )
    
      !$mnh_end_expand_where(JI=1:D%NIT,JJ=1:D%NJT,JK=1:D%NKT)    
    
      !$mnh_expand_array(JI=1:D%NIT,JJ=1:D%NJT,JK=1:D%NKT)    
    
      PSI_SV(:,:,:,JSV) = MAX( 1.E-4, MIN(CSTURB%XPHI_LIM,PSI_SV(:,:,:,JSV)) )
    
      !$mnh_end_expand_array(JI=1:D%NIT,JJ=1:D%NJT,JK=1:D%NKT)    
    
    !
      PSI_SV(:,:,IKB-1,JSV)=PSI_SV(:,:,IKB,JSV)
      PSI_SV(:,:,IKE+1,JSV)=PSI_SV(:,:,IKE,JSV)
    END DO
    !
    IF (LHOOK) CALL DR_HOOK('MODE_PRANDTL:PSI_SV',1,ZHOOK_HANDLE)
    END FUNCTION PSI_SV
    !----------------------------------------------------------------------------
    
    FUNCTION D_PHI3DTDZ_O_DDTDZ(D,CSTURB,PPHI3,PREDTH1,PREDR1,PRED2TH3,PRED2THR3,HTURBDIM,OUSERV)
    
      TYPE(DIMPHYEX_t),                   INTENT(IN)   :: D
      REAL, DIMENSION(D%NIT,D%NJT,D%NKT), INTENT(IN) :: PPHI3
      REAL, DIMENSION(D%NIT,D%NJT,D%NKT), INTENT(IN) :: PREDTH1
      REAL, DIMENSION(D%NIT,D%NJT,D%NKT), INTENT(IN) :: PREDR1
      REAL, DIMENSION(D%NIT,D%NJT,D%NKT), INTENT(IN) :: PRED2TH3
      REAL, DIMENSION(D%NIT,D%NJT,D%NKT), INTENT(IN) :: PRED2THR3
      CHARACTER(LEN=4),       INTENT(IN) :: HTURBDIM  ! 1DIM or 3DIM turb. scheme
    
      LOGICAL,                INTENT(IN) :: OUSERV    ! flag to use vapor
    
      REAL, DIMENSION(D%NIT,D%NJT,D%NKT) :: D_PHI3DTDZ_O_DDTDZ
    
      INTEGER :: IKB, IKE,JL,JK,JJ,JI
    
    !
    REAL(KIND=JPRB) :: ZHOOK_HANDLE
    IF (LHOOK) CALL DR_HOOK('MODE_PRANDTL:D_PHI3DTDZ_O_DDTDZ',0,ZHOOK_HANDLE)
    IKB = 1+JPVEXT_TURB
    IKE = SIZE(PREDTH1,3)-JPVEXT_TURB
    !
    IF (HTURBDIM=='3DIM') THEN
            !* 3DIM case
      IF (OUSERV) THEN
    
       !$mnh_expand_where(JI=1:D%NIT,JJ=1:D%NJT,JK=1:D%NKT)    
    
    #ifdef REPRO48
        WHERE (PPHI3(:,:,:)/=CSTURB%XPHI_LIM)
    #else
    
          D_PHI3DTDZ_O_DDTDZ(:,:,:) = PPHI3(:,:,:)                       &
              * (1. - PREDTH1(:,:,:) * (3./2.+PREDTH1(:,:,:)+PREDR1(:,:,:))          &
                   /((1.+PREDTH1(:,:,:)+PREDR1(:,:,:))*(1.+1./2.*(PREDTH1(:,:,:)+PREDR1(:,:,:))))) &
              + (1.+PREDR1(:,:,:))*(PRED2THR3(:,:,:)+PRED2TH3(:,:,:))                       &
                   / (PREDTH1(:,:,:)*(1.+PREDTH1(:,:,:)+PREDR1(:,:,:))* &
                     (1.+1./2.*(PREDTH1(:,:,:)+PREDR1(:,:,:)))) &
              - (1./2.*PREDTH1(:,:,:)+PREDR1(:,:,:) * (1.+PREDTH1(:,:,:)+PREDR1(:,:,:)))           &
                   / ((1.+PREDTH1(:,:,:)+PREDR1(:,:,:))*(1.+1./2.*(PREDTH1(:,:,:)+PREDR1(:,:,:))))
    
        ELSEWHERE
          D_PHI3DTDZ_O_DDTDZ(:,:,:) = PPHI3(:,:,:)
        ENDWHERE
    
       !$mnh_end_expand_where(JI=1:D%NIT,JJ=1:D%NJT,JK=1:D%NKT)    
    
       !$mnh_expand_where(JI=1:D%NIT,JJ=1:D%NJT,JK=1:D%NKT)    
    
    #ifdef REPRO48
        WHERE (PPHI3(:,:,:)/=CSTURB%XPHI_LIM)
    #else
    
        D_PHI3DTDZ_O_DDTDZ(:,:,:) = PPHI3(:,:,:)             &
    
              * (1. - PREDTH1(:,:,:) * (3./2.+PREDTH1(:,:,:))      &
                   /((1.+PREDTH1(:,:,:))*(1.+1./2.*PREDTH1(:,:,:))))        &
              + PRED2TH3(:,:,:) / (PREDTH1(:,:,:)*(1.+PREDTH1(:,:,:))*(1.+1./2.*PREDTH1(:,:,:))) &
              - 1./2.*PREDTH1(:,:,:) / ((1.+PREDTH1(:,:,:))*(1.+1./2.*PREDTH1(:,:,:)))
    
        ELSEWHERE
          D_PHI3DTDZ_O_DDTDZ(:,:,:) = PPHI3(:,:,:)
        ENDWHERE
    
       !$mnh_end_expand_where(JI=1:D%NIT,JJ=1:D%NJT,JK=1:D%NKT)    
    
    DO JJ=1,SIZE(PPHI3,2)
      DO JL=1,SIZE(PPHI3,1)
        DO JK=1,SIZE(PPHI3,3)
    
          IF ( ABS(PPHI3(JL,JJ,JK)-CSTURB%XPHI_LIM) < 1.E-12 ) THEN
    
             D_PHI3DTDZ_O_DDTDZ(JL,JJ,JK)=PPHI3(JL,JJ,JK)*&
    &       (1. - PREDTH1(JL,JJ,JK)*PPHI3(JL,JJ,JK))
          ELSE
             D_PHI3DTDZ_O_DDTDZ(JL,JJ,JK)=PPHI3(JL,JJ,JK)
          ENDIF
        ENDDO
    
    CALL SMOOTH_TURB_FUNCT(D,CSTURB,PPHI3,PPHI3,D_PHI3DTDZ_O_DDTDZ)
    
    !
    D_PHI3DTDZ_O_DDTDZ(:,:,IKB-1)=D_PHI3DTDZ_O_DDTDZ(:,:,IKB)
    D_PHI3DTDZ_O_DDTDZ(:,:,IKE+1)=D_PHI3DTDZ_O_DDTDZ(:,:,IKE)
    !
    IF (LHOOK) CALL DR_HOOK('MODE_PRANDTL:D_PHI3DTDZ_O_DDTDZ',1,ZHOOK_HANDLE)
    END FUNCTION D_PHI3DTDZ_O_DDTDZ
    !----------------------------------------------------------------------------
    
    FUNCTION D_PHI3DRDZ_O_DDRDZ(D,CSTURB,PPHI3,PREDTH1,PREDR1,PRED2TH3,PRED2THR3,HTURBDIM,OUSERV)
    
      TYPE(CSTURB_t),                     INTENT(IN) :: CSTURB
      TYPE(DIMPHYEX_t),                   INTENT(IN) :: D
    
      REAL, DIMENSION(D%NIT,D%NJT,D%NKT), INTENT(IN) :: PPHI3
      REAL, DIMENSION(D%NIT,D%NJT,D%NKT), INTENT(IN) :: PREDTH1
      REAL, DIMENSION(D%NIT,D%NJT,D%NKT), INTENT(IN) :: PREDR1
      REAL, DIMENSION(D%NIT,D%NJT,D%NKT), INTENT(IN) :: PRED2TH3
      REAL, DIMENSION(D%NIT,D%NJT,D%NKT), INTENT(IN) :: PRED2THR3
      CHARACTER(LEN=4),       INTENT(IN) :: HTURBDIM  ! 1DIM or 3DIM turb. scheme
    
      LOGICAL,                INTENT(IN) :: OUSERV    ! flag to use vapor
    
       REAL, DIMENSION(D%NIT,D%NJT,D%NKT) :: D_PHI3DRDZ_O_DDRDZ
    
      INTEGER :: IKB, IKE, JI,JJ,JK
    
    !
    REAL(KIND=JPRB) :: ZHOOK_HANDLE
    IF (LHOOK) CALL DR_HOOK('MODE_PRANDTL:D_PHI3DRDZ_O_DDRDZ',0,ZHOOK_HANDLE)
    IKB = 1+JPVEXT_TURB
    IKE = SIZE(PREDTH1,3)-JPVEXT_TURB
    !
    !
    IF (HTURBDIM=='3DIM') THEN
            !* 3DIM case
      IF (OUSERV) THEN
    
       !$mnh_expand_where(JI=1:D%NIT,JJ=1:D%NJT,JK=1:D%NKT)    
    
    #ifdef REPRO48
        WHERE (PPHI3(:,:,:)/=CSTURB%XPHI_LIM)
    #else
    
          D_PHI3DRDZ_O_DDRDZ(:,:,:) =          &
    
                    PPHI3(:,:,:) * (1.-PREDR1(:,:,:)*(3./2.+PREDTH1(:,:,:)+PREDR1(:,:,:)) &
                      / ((1.+PREDTH1(:,:,:)+PREDR1(:,:,:))*(1.+1./2.*(PREDTH1(:,:,:)+PREDR1(:,:,:)))))  &
                  - PREDR1(:,:,:) * (PRED2THR3(:,:,:)+PRED2TH3(:,:,:)) / (PREDTH1(:,:,:)         &
                      * (1.+PREDTH1(:,:,:)+PREDR1(:,:,:))*(1.+1./2.*(PREDTH1(:,:,:)+PREDR1(:,:,:))))    &
                  + PREDR1(:,:,:) * (1./2.+PREDTH1(:,:,:)+PREDR1(:,:,:))                  &
                      / ((1.+PREDTH1(:,:,:)+PREDR1(:,:,:))*(1.+1./2.*(PREDTH1(:,:,:)+PREDR1(:,:,:))))
    
        ELSEWHERE
          D_PHI3DRDZ_O_DDRDZ(:,:,:) = PPHI3(:,:,:)
        END WHERE
    
       !$mnh_end_expand_where(JI=1:D%NIT,JJ=1:D%NJT,JK=1:D%NKT)    
    
      ELSE
        D_PHI3DRDZ_O_DDRDZ(:,:,:) = PPHI3(:,:,:)
      END IF
    ELSE
            !* 1DIM case
    
        !$mnh_expand_where(JI=1:D%NIT,JJ=1:D%NJT,JK=1:D%NKT)    
    
    #ifdef REPRO48
        WHERE (PPHI3(:,:,:)/=CSTURB%XPHI_LIM)
    #else
        WHERE (PPHI3(:,:,:)<=CSTURB%XPHI_LIM)
    #endif
    
        D_PHI3DRDZ_O_DDRDZ(:,:,:) = PPHI3(:,:,:)                           &
              * (1. - PREDR1(:,:,:)*PPHI3(:,:,:))
      ELSEWHERE
        D_PHI3DRDZ_O_DDRDZ(:,:,:) = PPHI3(:,:,:)
      END WHERE
    
      !$mnh_end_expand_where(JI=1:D%NIT,JJ=1:D%NJT,JK=1:D%NKT)    
    
    CALL SMOOTH_TURB_FUNCT(D,CSTURB,PPHI3,PPHI3,D_PHI3DRDZ_O_DDRDZ)
    
    !
    D_PHI3DRDZ_O_DDRDZ(:,:,IKB-1)=D_PHI3DRDZ_O_DDRDZ(:,:,IKB)
    D_PHI3DRDZ_O_DDRDZ(:,:,IKE+1)=D_PHI3DRDZ_O_DDRDZ(:,:,IKE)
    !
    IF (LHOOK) CALL DR_HOOK('MODE_PRANDTL:D_PHI3DRDZ_O_DDRDZ',1,ZHOOK_HANDLE)
    END FUNCTION D_PHI3DRDZ_O_DDRDZ
    !----------------------------------------------------------------------------
    
    FUNCTION D_PHI3DTDZ2_O_DDTDZ(D,CSTURB,PPHI3,PREDTH1,PREDR1,PRED2TH3,PRED2THR3,PDTDZ,HTURBDIM,OUSERV)
    
      TYPE(CSTURB_t),                     INTENT(IN) :: CSTURB
      TYPE(DIMPHYEX_t),                   INTENT(IN) :: D
    
      REAL, DIMENSION(D%NIT,D%NJT,D%NKT), INTENT(IN) :: PPHI3
      REAL, DIMENSION(D%NIT,D%NJT,D%NKT), INTENT(IN) :: PREDTH1
      REAL, DIMENSION(D%NIT,D%NJT,D%NKT), INTENT(IN) :: PREDR1
      REAL, DIMENSION(D%NIT,D%NJT,D%NKT), INTENT(IN) :: PRED2TH3
      REAL, DIMENSION(D%NIT,D%NJT,D%NKT), INTENT(IN) :: PRED2THR3
      REAL, DIMENSION(D%NIT,D%NJT,D%NKT), INTENT(IN) :: PDTDZ
      CHARACTER(LEN=4),       INTENT(IN) :: HTURBDIM  ! 1DIM or 3DIM turb. scheme
    
      LOGICAL,                INTENT(IN) :: OUSERV    ! flag to use vapor
    
      REAL, DIMENSION(D%NIT,D%NJT,D%NKT) :: D_PHI3DTDZ2_O_DDTDZ
    
      REAL, DIMENSION(D%NIT,D%NJT,D%NKT) :: ZWORK1 ! working array
      INTEGER :: IKB, IKE, JI,JJ,JK
    
    !
    REAL(KIND=JPRB) :: ZHOOK_HANDLE
    IF (LHOOK) CALL DR_HOOK('MODE_PRANDTL:D_PHI3DTDZ2_O_DDTDZ',0,ZHOOK_HANDLE)
    IKB = 1+JPVEXT_TURB
    IKE = SIZE(PREDTH1,3)-JPVEXT_TURB
    !
    !
    IF (HTURBDIM=='3DIM') THEN
    
       ! by derivation of (phi3 dtdz) * dtdz according to dtdz we obtain:
    
       ZWORK1 = D_PHI3DTDZ_O_DDTDZ(D,CSTURB,PPHI3,PREDTH1,PREDR1,PRED2TH3,PRED2THR3,HTURBDIM,OUSERV) 
       !$mnh_expand_array(JI=1:D%NIT,JJ=1:D%NJT,JK=1:D%NKT)
       D_PHI3DTDZ2_O_DDTDZ(:,:,:) = PDTDZ(:,:,:) * (PPHI3(:,:,:) +  ZWORK1(:,:,:))
       !$mnh_end_expand_array(JI=1:D%NIT,JJ=1:D%NJT,JK=1:D%NKT)
    
        !$mnh_expand_where(JI=1:D%NIT,JJ=1:D%NJT,JK=1:D%NKT)    
    
    #ifdef REPRO48
        WHERE (PPHI3(:,:,:)/=CSTURB%XPHI_LIM)
    #else
    
          D_PHI3DTDZ2_O_DDTDZ(:,:,:) = PPHI3(:,:,:)*PDTDZ(:,:,:)             &
              * (2. - PREDTH1(:,:,:)*PPHI3(:,:,:))
        ELSEWHERE
          D_PHI3DTDZ2_O_DDTDZ(:,:,:) = PPHI3(:,:,:) * 2. * PDTDZ(:,:,:)
        END WHERE
    
        !$mnh_end_expand_where(JI=1:D%NIT,JJ=1:D%NJT,JK=1:D%NKT)    
    
    CALL SMOOTH_TURB_FUNCT(D,CSTURB,PPHI3,PPHI3*2.*PDTDZ,D_PHI3DTDZ2_O_DDTDZ)
    
    !
    D_PHI3DTDZ2_O_DDTDZ(:,:,IKB-1)=D_PHI3DTDZ2_O_DDTDZ(:,:,IKB)
    D_PHI3DTDZ2_O_DDTDZ(:,:,IKE+1)=D_PHI3DTDZ2_O_DDTDZ(:,:,IKE)
    !
    IF (LHOOK) CALL DR_HOOK('MODE_PRANDTL:D_PHI3DTDZ2_O_DDTDZ',1,ZHOOK_HANDLE)
    END FUNCTION D_PHI3DTDZ2_O_DDTDZ
    !----------------------------------------------------------------------------
    
    FUNCTION M3_WTH_WTH2(D,CSTURB,PREDTH1,PREDR1,PD,PBLL_O_E,PETHETA)
    
      TYPE(DIMPHYEX_t),                   INTENT(IN) :: D
      TYPE(CSTURB_t),                     INTENT(IN) :: CSTURB
    
      REAL, DIMENSION(D%NIT,D%NJT,D%NKT), INTENT(IN) :: PREDTH1
      REAL, DIMENSION(D%NIT,D%NJT,D%NKT), INTENT(IN) :: PREDR1
      REAL, DIMENSION(D%NIT,D%NJT,D%NKT), INTENT(IN) :: PD
      REAL, DIMENSION(D%NIT,D%NJT,D%NKT), INTENT(IN) :: PBLL_O_E
      REAL, DIMENSION(D%NIT,D%NJT,D%NKT), INTENT(IN) :: PETHETA
      REAL, DIMENSION(D%NIT,D%NJT,D%NKT) :: M3_WTH_WTH2
    
      INTEGER :: IKB, IKE, JI,JJ,JK
    
    !
    REAL(KIND=JPRB) :: ZHOOK_HANDLE
    IF (LHOOK) CALL DR_HOOK('MODE_PRANDTL:M3_WTH_WTH2',0,ZHOOK_HANDLE)
    IKB = 1+JPVEXT_TURB
    IKE = SIZE(PD,3)-JPVEXT_TURB
    
    
    !$mnh_expand_array(JI=1:D%NIT,JJ=1:D%NJT,JK=1:D%NKT)
    M3_WTH_WTH2(:,:,:) = CSTURB%XCSHF*PBLL_O_E(:,:,:)*PETHETA(:,:,:)*0.5/CSTURB%XCTD        &
                       * (1.+0.5*PREDTH1(:,:,:)+PREDR1(:,:,:)) / PD(:,:,:)
    !$mnh_end_expand_array(JI=1:D%NIT,JJ=1:D%NJT,JK=1:D%NKT)
    
    M3_WTH_WTH2(:,:,IKB-1)=M3_WTH_WTH2(:,:,IKB)
    M3_WTH_WTH2(:,:,IKE+1)=M3_WTH_WTH2(:,:,IKE)
    !