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!#######################
MODULE MODI_SPAWN_FIELD2
!#######################
!
INTERFACE
!
      SUBROUTINE SPAWN_FIELD2(KXOR,KYOR,KXEND,KYEND,KDXRATIO,KDYRATIO,HTURB,   &
               PUM,PVM,PWM,PTHVM,PRM,PHUM,PTKEM,PSVM,                          &
               PUT,PVT,PWT,PTHVT,PRT,PHUT,PTKET,PSVT,PATC,                     &
               PSRCM,PSRCT,PSIGS,                                              &
               PLSUM,PLSVM,PLSWM,PLSTHM,PLSRVM,                                &
               PDTHFRC,PDRVFRC,PTHREL,PRVREL,                                  &
               PVU_FLUX_M,PVTH_FLUX_M,PWTH_FLUX_M,                             &
               HSONFILE,KIUSON,KJUSON,                                         &
               KIB2,KJB2,KIE2,KJE2,                                            &
               KIB1,KJB1,KIE1,KJE1                                             )
!
INTEGER,   INTENT(IN)  :: KXOR,KXEND !  horizontal position (i,j) of the ORigin and END  
INTEGER,   INTENT(IN)  :: KYOR,KYEND ! of the model 2 domain, relative to model 1
INTEGER,   INTENT(IN)  :: KDXRATIO   !  x and y-direction Resolution ratio
INTEGER,   INTENT(IN)  :: KDYRATIO   ! between model 2 and model 1
CHARACTER (LEN=4), INTENT(IN) :: HTURB !  Kind of turbulence parameterization
!
REAL, DIMENSION(:,:,:),   INTENT(OUT) :: PUM,PVM,PWM        !  model 2
REAL, DIMENSION(:,:,:),   INTENT(OUT) :: PTKEM              ! variables
REAL, DIMENSION(:,:,:,:), INTENT(OUT) :: PRM,PSVM           !   at t-dt
REAL, DIMENSION(:,:,:),   INTENT(OUT) :: PTHVM,PHUM         !
!
REAL, DIMENSION(:,:,:),   INTENT(OUT) :: PUT,PVT,PWT        !  model 2
REAL, DIMENSION(:,:,:),   INTENT(OUT) :: PTKET              ! variables
REAL, DIMENSION(:,:,:,:), INTENT(OUT) :: PRT,PSVT,PATC      !   at t
REAL, DIMENSION(:,:,:),   INTENT(OUT) :: PTHVT,PHUT         !
!
REAL, DIMENSION(:,:,:),   INTENT(OUT) :: PSRCM,PSRCT,PSIGS  ! secondary
                                                            ! prognostic variables
           ! Larger Scale fields for relaxation and diffusion
REAL, DIMENSION(:,:,:),          INTENT(OUT) :: PLSUM, PLSVM, PLSWM 
REAL, DIMENSION(:,:,:),          INTENT(OUT) :: PLSTHM,  PLSRVM     
REAL, DIMENSION(:,:,:,:),        INTENT(OUT) :: PDTHFRC,PDRVFRC
REAL, DIMENSION(:,:,:,:),        INTENT(OUT) :: PTHREL,PRVREL
REAL, DIMENSION(:,:,:),          INTENT(OUT) :: PVU_FLUX_M,PVTH_FLUX_M,PWTH_FLUX_M
!
           ! Arguments for spawning with 2 input files (father+son1)
CHARACTER (LEN=*), OPTIONAL, INTENT(IN) :: HSONFILE  ! name of the input FM-file SON
INTEGER,           OPTIONAL, INTENT(IN) :: KIUSON  ! upper dimensions of the
INTEGER,           OPTIONAL, INTENT(IN) :: KJUSON  !input FM-file SON
INTEGER,           OPTIONAL, INTENT(IN) :: KIB2,KJB2 ! indexes for common
INTEGER,           OPTIONAL, INTENT(IN) :: KIE2,KJE2 !domain in model2
INTEGER,           OPTIONAL, INTENT(IN) :: KIB1,KJB1 !and in
INTEGER,           OPTIONAL, INTENT(IN) :: KIE1,KJE1 !SON
END SUBROUTINE SPAWN_FIELD2
!
END INTERFACE
!
END MODULE MODI_SPAWN_FIELD2
!     ######spl
      SUBROUTINE SPAWN_FIELD2(KXOR,KYOR,KXEND,KYEND,KDXRATIO,KDYRATIO,HTURB,   &
               PUM,PVM,PWM,PTHVM,PRM,PHUM,PTKEM,PSVM,                          &
               PUT,PVT,PWT,PTHVT,PRT,PHUT,PTKET,PSVT,PATC,                     &
               PSRCM,PSRCT,PSIGS,                                              &
               PLSUM,PLSVM,PLSWM,PLSTHM,PLSRVM,                                &
               PDTHFRC,PDRVFRC,PTHREL,PRVREL,                                  &
               PVU_FLUX_M,PVTH_FLUX_M,PWTH_FLUX_M,                             &
               HSONFILE,KIUSON,KJUSON,                                         &
               KIB2,KJB2,KIE2,KJE2,                                            &
               KIB1,KJB1,KIE1,KJE1                                             )
!     ##########################################################################
!
!!****  *SPAWN_FIELD2 * - subroutine generating the model 2 prognostic and LS
!!                      fields, consistently with the spawning model 1.
!!
!!    PURPOSE
!!    -------
!!
!!      The prognostic and LS fields are interpolated from the model 1, to 
!!    initialize the model 2.
!!
!!**  METHOD
!!    ------
!!
!!      The model 2 variables are transmitted by argument (P or K prefixes),
!!    while the ones of model 1 are declared through calls to MODD_... 
!!    (X or N prefixes)
!!
!!      For the case where the resolution ratio between models is 1, 
!!    the horizontal interpolation becomes a simple equality.
!!      For the general case where resolution ratio is not egal to one,
!!    fields are interpolated using 2 types of interpolations:
!!                 1. Clark and Farley (JAS 1984) on 9 points 
!!                 2. Bikhardt on 16 points
!!
!!    EXTERNAL
!!    --------
!!      
!!      Routine BIKHARDT      : to perform horizontal interpolations
!!      Routine CLARK_FARLEY  : to perform horizontal interpolations
!!
!! 
!!    IMPLICIT ARGUMENTS
!!    ------------------ 
!!      Module MODD_PARAMETERS : contains parameters 
!!      Module MODD_CONF       : contains NVERB
!!      Module MODD_CONF1      : contains CONF_MODEL(1)%NRR (total Number of moist variables)
!!      Module MODD_FIELD1     : contains pronostic variables of model 1
!!      Module MODD_LSFIELD1   : contains LB and LS variables of model 1
!!      Module MODD_REF1       : contains RHODJ of model 1
!!      Module MODD_GRID1      : contains grid variables
!!
!!    REFERENCE
!!    ---------
!!
!!       Book1 of the documentation
!!       SUBROUTINE SPAWN_FIELD2 (Book2 of the documentation)
!!      
!!
!!    AUTHOR
!!    ------
!!
!!       J.P. Lafore     * METEO-FRANCE *
!!
!!    MODIFICATIONS
!!    -------------
!!
!!      Original    12/01/95
!!      Modification 20/03/95 (I.Mallet) change Large Scale fields initialization 
!!      Modification 27/04/95 (    "   ) remove R from the historical variables 
!!      Modification 17/04/96  (Lafore) Different resolution ratio case introduction
!!      Modification 10/06/96 (V.Masson) remove the loops in case of no resolution change
!!                                       and bug in initialization of ZBFY
!!      Modification 10/06/96 (V.Masson) interpolation computations performed in
!!                                       independant routines
!!                   10/10/96 (J. Stein) add SRCM and SRCT
!!      Modification 21/11/96 (Lafore)   move from BIKHARDT2 to BIKHARDT routine
!!      Modification 21/11/96 (Lafore)   "surfacic" LS fields
!!      Modification 10/07/97 (Masson)   remove pressure interpolations
!!      Modification 17/07/97 (Masson)   add EPS and tests on other variables
!!      Modification 14/09/97 (Masson)   interpolation of relative humidity
!!      Modification 14/09/97 (J. Stein) add the LB and LS fields
!!      Modification 27/07/98 (P. Jabouille) compute HU for all the cases
!!      Modification 01/02/01 (D.Gazen)  add module MODD_NSV for NSV variable
!!      Modification 07/07/05 (D.Barbary) spawn with 2 input files (father+son1)
!!      Modification 05/06                Remove EPS, Clark and Farley
!!      Modification 06/12  (M.Tomasini)  Interpolation of turbulent fluxes (EDDY_FLUX)
!!                                        for 2D west african monsoon
!-------------------------------------------------------------------------------
!
!*       0.     DECLARATIONS
!               ------------
!
USE MODD_PARAMETERS       ! Declarative modules 
USE MODD_CONF
USE MODD_CST
!
USE MODD_GRID_n,   ONLY:  GRID_MODEL 
USE MODD_CONF_n,   ONLY:  CONF_MODEL
USE MODD_LBC_n,    ONLY:  LBC_MODEL
USE MODD_LUNIT_n,  ONLY:  LUNIT_MODEL
USE MODD_FIELD_n,  ONLY:  FIELD_MODEL
USE MODD_LSFIELD_n,ONLY:  LSFIELD_MODEL
USE MODD_REF_n,    ONLY:  REF_MODEL
!
USE MODD_NSV
USE MODD_RAIN_C2R2_DESCR, ONLY: C2R2NAMES
USE MODD_CH_M9_n,         ONLY: CNAMES, CICNAMES
USE MODD_DUST,            ONLY: CDUSTNAMES
USE MODD_SALT,            ONLY: CSALTNAMES
USE MODD_CH_AEROSOL,      ONLY: CAERONAMES
USE MODD_LG,              ONLY: CLGNAMES
USE MODD_ELEC_DESCR,      ONLY: CELECNAMES
!
USE MODD_BIKHARDT_n
USE MODD_LUNIT_n
!
USE MODI_BIKHARDT
!
USE MODE_FMREAD
USE MODE_THERMO
USE MODE_MODELN_HANDLER
USE MODE_IO_ll, ONLY: UPCASE
!
USE MODD_ADVFRC_n 
USE MODD_RELFRC_n 
USE MODD_2D_FRC
!
USE MODD_LATZ_EDFLX
USE MODD_DEF_EDDY_FLUX_n           
USE MODD_DEF_EDDYUV_FLUX_n
!
IMPLICIT NONE
!
!*       0.1   Declarations of dummy arguments :
!
!
INTEGER,   INTENT(IN)  :: KXOR,KXEND !  horizontal position (i,j) of the ORigin and END  
INTEGER,   INTENT(IN)  :: KYOR,KYEND ! of the model 2 domain, relative to model 1
INTEGER,   INTENT(IN)  :: KDXRATIO   !  x and y-direction Resolution ratio
INTEGER,   INTENT(IN)  :: KDYRATIO   ! between model 2 and model 1
CHARACTER (LEN=4), INTENT(IN) :: HTURB !  Kind of turbulence parameterization
!
REAL, DIMENSION(:,:,:),   INTENT(OUT) :: PUM,PVM,PWM        !  model 2
REAL, DIMENSION(:,:,:),   INTENT(OUT) :: PTKEM              ! variables
REAL, DIMENSION(:,:,:,:), INTENT(OUT) :: PRM,PSVM           !   at t-dt
REAL, DIMENSION(:,:,:),   INTENT(OUT) :: PTHVM,PHUM         !
!
REAL, DIMENSION(:,:,:),   INTENT(OUT) :: PUT,PVT,PWT        !  model 2
REAL, DIMENSION(:,:,:),   INTENT(OUT) :: PTKET              ! variables
REAL, DIMENSION(:,:,:,:), INTENT(OUT) :: PRT,PSVT,PATC      !   at t
REAL, DIMENSION(:,:,:),   INTENT(OUT) :: PTHVT,PHUT         !
!
REAL, DIMENSION(:,:,:),   INTENT(OUT) :: PSRCM,PSRCT,PSIGS  ! secondary
                                                            ! prognostic variables
           ! Larger Scale fields for relaxation and diffusion
REAL, DIMENSION(:,:,:),          INTENT(OUT) :: PLSUM, PLSVM, PLSWM 
REAL, DIMENSION(:,:,:),          INTENT(OUT) :: PLSTHM,  PLSRVM    
REAL, DIMENSION(:,:,:,:),        INTENT(OUT) :: PDTHFRC,PDRVFRC
REAL, DIMENSION(:,:,:,:),        INTENT(OUT) :: PTHREL,PRVREL
REAL, DIMENSION(:,:,:),          INTENT(OUT) :: PVU_FLUX_M,PVTH_FLUX_M,PWTH_FLUX_M
           ! Arguments for spawning with 2 input files (father+son1)
CHARACTER (LEN=*), OPTIONAL, INTENT(IN) :: HSONFILE  ! name of the input FM-file SON
INTEGER,           OPTIONAL, INTENT(IN) :: KIUSON  ! upper dimensions of the
INTEGER,           OPTIONAL, INTENT(IN) :: KJUSON  !input FM-file SON
INTEGER,           OPTIONAL, INTENT(IN) :: KIB2,KJB2 ! indexes for common
INTEGER,           OPTIONAL, INTENT(IN) :: KIE2,KJE2 !domain in model2
INTEGER,           OPTIONAL, INTENT(IN) :: KIB1,KJB1 !and in
INTEGER,           OPTIONAL, INTENT(IN) :: KIE1,KJE1 !SON
!
!*       0.2    Declarations of local variables 
!
INTEGER             :: ILUOUT    ! Logical unit number for the output listing 
INTEGER             :: IRESP     ! Return codes in FM routines
INTEGER             :: JRR,JSV   ! Loop index for moist and scalar variables 
INTEGER             :: IRR       ! Number of moist variables 
!
REAL, DIMENSION(SIZE(FIELD_MODEL(1)%XRT,1),SIZE(FIELD_MODEL(1)%XRT,2),SIZE(FIELD_MODEL(1)%XRT,3)) :: ZHUM ! relative humidity
                                                             ! (model 1)
REAL, DIMENSION(SIZE(FIELD_MODEL(1)%XRT,1),SIZE(FIELD_MODEL(1)%XRT,2),SIZE(FIELD_MODEL(1)%XRT,3)) :: ZHUT ! relative humidity
                                                             ! (model 1)
REAL, DIMENSION(SIZE(FIELD_MODEL(1)%XTHT,1),SIZE(FIELD_MODEL(1)%XTHT,2),SIZE(FIELD_MODEL(1)%XTHT,3)) :: ZTHVM! virtual pot. T
                                                                ! (model 1)
REAL, DIMENSION(SIZE(FIELD_MODEL(1)%XTHT,1),SIZE(FIELD_MODEL(1)%XTHT,2),SIZE(FIELD_MODEL(1)%XTHT,3)) :: ZTHVT! virtual pot. T
                                                                ! (model 1)
INTEGER  :: IMI
! Arrays for reading fields of input SON 1 file
REAL, DIMENSION(:,:,:), ALLOCATABLE   :: ZWORK3D
REAL, DIMENSION(:,:,:), ALLOCATABLE   :: ZTHM1,ZTHT1,ZTHVM1,ZTHVT1
REAL, DIMENSION(:,:,:), ALLOCATABLE   :: ZPABSM1,ZPABST1,ZHUM1,ZHUT1
REAL, DIMENSION(:,:,:,:), ALLOCATABLE :: ZRM1,ZRT1
LOGICAL :: GUSERV
!
INTEGER             :: IGRID,ILENCH   !   File
CHARACTER (LEN=16)  :: YRECFM         ! management
CHARACTER (LEN=100) :: YCOMMENT       ! variables
CHARACTER (LEN=2)   :: YDIR
!
!-------------------------------------------------------------------------------
!
!*       1.    PROLOGUE:
!              ---------
!
IMI = GET_CURRENT_MODEL_INDEX()
CALL GOTO_MODEL(2)
!
!*       1.0  recovers logical unit number of output listing
!
CALL FMLOOK_ll(CLUOUT,CLUOUT,ILUOUT,IRESP)
!
!*       1.1   Secondary variables
!
CALL COMPUTE_THV_HU(CONF_MODEL(1)%LUSERV,FIELD_MODEL(1)%XRM,FIELD_MODEL(1)%XTHM,FIELD_MODEL(1)%XPABSM,ZTHVM,ZHUM)
CALL COMPUTE_THV_HU(CONF_MODEL(1)%LUSERV,FIELD_MODEL(1)%XRT,FIELD_MODEL(1)%XTHT,FIELD_MODEL(1)%XPABST,ZTHVT,ZHUT)
!
!*       1.2   Working arrays for reading in SON input file
!
IF (PRESENT(HSONFILE)) THEN
  ALLOCATE(ZWORK3D(KIUSON,KJUSON,SIZE(PUM,3)))
  ALLOCATE(ZPABSM1(KIE1-KIB1+1,KJE1-KJB1+1,SIZE(PUM,3)))
  ALLOCATE(ZPABST1(KIE1-KIB1+1,KJE1-KJB1+1,SIZE(PUM,3)))
  ALLOCATE(ZTHM1(KIE1-KIB1+1,KJE1-KJB1+1,SIZE(PUM,3)))
  ALLOCATE(ZTHT1(KIE1-KIB1+1,KJE1-KJB1+1,SIZE(PUM,3)))
  ALLOCATE(ZTHVM1(KIE1-KIB1+1,KJE1-KJB1+1,SIZE(PUM,3)))
  ALLOCATE(ZTHVT1(KIE1-KIB1+1,KJE1-KJB1+1,SIZE(PUM,3)))
  IF (CONF_MODEL(1)%NRR /= 0) THEN
    ALLOCATE(ZHUM1(KIE1-KIB1+1,KJE1-KJB1+1,SIZE(PUM,3)))
    ALLOCATE(ZHUT1(KIE1-KIB1+1,KJE1-KJB1+1,SIZE(PUM,3)))
    ALLOCATE(ZRM1(KIE1-KIB1+1,KJE1-KJB1+1, SIZE(PUM,3),SIZE(PRM,4)))
    ALLOCATE(ZRT1(KIE1-KIB1+1,KJE1-KJB1+1, SIZE(PUM,3),SIZE(PRM,4)))
  END IF
END IF
! 
!-------------------------------------------------------------------------------
!
!*       2.    INITIALIZATION OF PROGNOSTIC AND LS VARIABLES OF MODEL 2:
!              ---------------------------------------------------------
! 
!
IF (KDXRATIO == 1 .AND. KDYRATIO == 1 ) THEN
!
!*       2.1   special case of spawning - no change of resolution :
!
!*       2.1.1  variables which always exist
!
  PUM  (:,:,:)   =  FIELD_MODEL(1)%XUM  (KXOR:KXEND,KYOR:KYEND,:)
  PVM  (:,:,:)   =  FIELD_MODEL(1)%XVM  (KXOR:KXEND,KYOR:KYEND,:)
  PWM  (:,:,:)   =  FIELD_MODEL(1)%XWM  (KXOR:KXEND,KYOR:KYEND,:)
  PTHVM(:,:,:)   =  ZTHVM(KXOR:KXEND,KYOR:KYEND,:)
!
  PUT  (:,:,:)   =  FIELD_MODEL(1)%XUT  (KXOR:KXEND,KYOR:KYEND,:)
  PVT  (:,:,:)   =  FIELD_MODEL(1)%XVT  (KXOR:KXEND,KYOR:KYEND,:)
  PWT  (:,:,:)   =  FIELD_MODEL(1)%XWT  (KXOR:KXEND,KYOR:KYEND,:)
  PTHVT(:,:,:)   =  ZTHVT(KXOR:KXEND,KYOR:KYEND,:)
!
  PLSUM (:,:,:)  =  FIELD_MODEL(1)%XUT (KXOR:KXEND,KYOR:KYEND,:)
  PLSVM (:,:,:)  =  FIELD_MODEL(1)%XVT (KXOR:KXEND,KYOR:KYEND,:)
  PLSWM (:,:,:)  =  FIELD_MODEL(1)%XWT (KXOR:KXEND,KYOR:KYEND,:)
  PLSTHM(:,:,:)  =  FIELD_MODEL(1)%XTHT(KXOR:KXEND,KYOR:KYEND,:)
!
  PLSRVM(:,:,:)  = 0.
!
!*       2.1.2  TKE variable
!
  IF (HTURB /= 'NONE') THEN
    PTKEM(:,:,:)   =  FIELD_MODEL(1)%XTKEM(KXOR:KXEND,KYOR:KYEND,:)
    PTKET(:,:,:)   =  FIELD_MODEL(1)%XTKET(KXOR:KXEND,KYOR:KYEND,:)
  ENDIF
!
!*       2.1.3  moist variables
!
  IF (CONF_MODEL(1)%NRR /= 0) THEN
    PRM  (:,:,:,:) =  FIELD_MODEL(1)%XRM  (KXOR:KXEND,KYOR:KYEND,:,:)
    PRT  (:,:,:,:) =  FIELD_MODEL(1)%XRT  (KXOR:KXEND,KYOR:KYEND,:,:)
    PLSRVM(:,:,:)  =  FIELD_MODEL(1)%XRT  (KXOR:KXEND,KYOR:KYEND,:,1)
    PHUM (:,:,:)   =  ZHUM (KXOR:KXEND,KYOR:KYEND,:)
    PHUT (:,:,:)   =  ZHUT (KXOR:KXEND,KYOR:KYEND,:)
  ENDIF
!
!*       2.1.4  scalar variables
!
  IF (NSV /= 0) THEN
    PSVM (:,:,:,:) =  FIELD_MODEL(1)%XSVM (KXOR:KXEND,KYOR:KYEND,:,:)
    PSVT (:,:,:,:) =  FIELD_MODEL(1)%XSVT (KXOR:KXEND,KYOR:KYEND,:,:)
  ENDIF
!
!*       2.1.5  secondary prognostic variables
!
  IF (CONF_MODEL(1)%NRR > 1) THEN
    PSRCM (:,:,:) =  FIELD_MODEL(1)%XSRCM (KXOR:KXEND,KYOR:KYEND,:)
    PSRCT (:,:,:) =  FIELD_MODEL(1)%XSRCT (KXOR:KXEND,KYOR:KYEND,:)
    PSIGS(:,:,:) =  FIELD_MODEL(1)%XSIGS(KXOR:KXEND,KYOR:KYEND,:)
  ENDIF
!
!*       2.1.6  Large scale variables
!
  PLSUM  (:,:,:)   =  LSFIELD_MODEL(1)%XLSUM  (KXOR:KXEND,KYOR:KYEND,:)
  PLSVM  (:,:,:)   =  LSFIELD_MODEL(1)%XLSVM  (KXOR:KXEND,KYOR:KYEND,:)
  PLSWM  (:,:,:)   =  LSFIELD_MODEL(1)%XLSWM  (KXOR:KXEND,KYOR:KYEND,:)
  PLSTHM(:,:,:)    =  LSFIELD_MODEL(1)%XLSTHM (KXOR:KXEND,KYOR:KYEND,:)
  IF ( CONF_MODEL(1)%NRR > 0 ) THEN
    PLSRVM  (:,:,:)   =  LSFIELD_MODEL(1)%XLSRVM  (KXOR:KXEND,KYOR:KYEND,:) 
  END IF
!
!*       2.1.7  Advective forcing fields for 2D (Modif MT)
!
  IF (L2D_ADV_FRC) THEN
    PDTHFRC(:,:,:,:)= ADVFRC_MODEL(1)%XDTHFRC (KXOR:KXEND,KYOR:KYEND,:,:)
    PDRVFRC(:,:,:,:)= ADVFRC_MODEL(1)%XDRVFRC (KXOR:KXEND,KYOR:KYEND,:,:)
  ENDIF
  IF (L2D_REL_FRC) THEN
    PTHREL(:,:,:,:)= RELFRC_MODEL(1)%XTHREL (KXOR:KXEND,KYOR:KYEND,:,:)
    PRVREL(:,:,:,:)= RELFRC_MODEL(1)%XRVREL (KXOR:KXEND,KYOR:KYEND,:,:)
  ENDIF
!
!*       2.1.8  Turbulent fluxes for 2D (Modif MT)                                    
!
  IF (LUV_FLX) THEN
    PVU_FLUX_M(:,:,:)= EDDYUV_FLUX_MODEL(1)%XVU_FLUX_M (KXOR:KXEND,KYOR:KYEND,:)
  END IF
!
  IF (LTH_FLX) THEN
    PVTH_FLUX_M(:,:,:)= EDDY_FLUX_MODEL(1)%XVTH_FLUX_M (KXOR:KXEND,KYOR:KYEND,:)
    PWTH_FLUX_M(:,:,:)= EDDY_FLUX_MODEL(1)%XWTH_FLUX_M (KXOR:KXEND,KYOR:KYEND,:)
  END IF
!
!-------------------------------------------------------------------------------
!
ELSE
!
!-------------------------------------------------------------------------------
!
!*       2.2  general case - change of resolution :
!             -----------------------------------
!
!                        Interpolation of the U variable at t-dt and t
!
    CALL BIKHARDT (XBMX1,XBMX2,XBMX3,XBMX4,XBMY1,XBMY2,XBMY3,XBMY4, &
                   XBFX1,XBFX2,XBFX3,XBFX4,XBFY1,XBFY2,XBFY3,XBFY4, &
                   KXOR,KYOR,KXEND,KYEND,KDXRATIO,KDYRATIO,2,       &
                   LBC_MODEL(1)%CLBCX,LBC_MODEL(1)%CLBCY,FIELD_MODEL(1)%XUM,PUM)
    CALL BIKHARDT (XBMX1,XBMX2,XBMX3,XBMX4,XBMY1,XBMY2,XBMY3,XBMY4, &
                   XBFX1,XBFX2,XBFX3,XBFX4,XBFY1,XBFY2,XBFY3,XBFY4, &
                   KXOR,KYOR,KXEND,KYEND,KDXRATIO,KDYRATIO,2,       &
                   LBC_MODEL(1)%CLBCX,LBC_MODEL(1)%CLBCY,FIELD_MODEL(1)%XUT,PUT)
    CALL BIKHARDT (XBMX1,XBMX2,XBMX3,XBMX4,XBMY1,XBMY2,XBMY3,XBMY4, &
                   XBFX1,XBFX2,XBFX3,XBFX4,XBFY1,XBFY2,XBFY3,XBFY4, &
                   KXOR,KYOR,KXEND,KYEND,KDXRATIO,KDYRATIO,2,       &
                   LBC_MODEL(1)%CLBCX,LBC_MODEL(1)%CLBCY,LSFIELD_MODEL(1)%XLSUM,PLSUM)
!
!                        Interpolation of the V variable at t-dt and t
!
    CALL BIKHARDT (XBMX1,XBMX2,XBMX3,XBMX4,XBMY1,XBMY2,XBMY3,XBMY4, &
                   XBFX1,XBFX2,XBFX3,XBFX4,XBFY1,XBFY2,XBFY3,XBFY4, &
                   KXOR,KYOR,KXEND,KYEND,KDXRATIO,KDYRATIO,3,       &
                   LBC_MODEL(1)%CLBCX,LBC_MODEL(1)%CLBCY,FIELD_MODEL(1)%XVM,PVM)
    CALL BIKHARDT (XBMX1,XBMX2,XBMX3,XBMX4,XBMY1,XBMY2,XBMY3,XBMY4, &
                   XBFX1,XBFX2,XBFX3,XBFX4,XBFY1,XBFY2,XBFY3,XBFY4, &
                   KXOR,KYOR,KXEND,KYEND,KDXRATIO,KDYRATIO,3,       &
                   LBC_MODEL(1)%CLBCX,LBC_MODEL(1)%CLBCY,FIELD_MODEL(1)%XVT,PVT)
    CALL BIKHARDT (XBMX1,XBMX2,XBMX3,XBMX4,XBMY1,XBMY2,XBMY3,XBMY4, &
                   XBFX1,XBFX2,XBFX3,XBFX4,XBFY1,XBFY2,XBFY3,XBFY4, &
                   KXOR,KYOR,KXEND,KYEND,KDXRATIO,KDYRATIO,3,       &
                   LBC_MODEL(1)%CLBCX,LBC_MODEL(1)%CLBCY,LSFIELD_MODEL(1)%XLSVM,PLSVM)
!
!                        Interpolation of variables at t-dt
!
    CALL BIKHARDT (XBMX1,XBMX2,XBMX3,XBMX4,XBMY1,XBMY2,XBMY3,XBMY4, &
                   XBFX1,XBFX2,XBFX3,XBFX4,XBFY1,XBFY2,XBFY3,XBFY4, &
                   KXOR,KYOR,KXEND,KYEND,KDXRATIO,KDYRATIO,4,       &
                   LBC_MODEL(1)%CLBCX,LBC_MODEL(1)%CLBCY,FIELD_MODEL(1)%XWM,PWM)
    CALL BIKHARDT (XBMX1,XBMX2,XBMX3,XBMX4,XBMY1,XBMY2,XBMY3,XBMY4, &
                   XBFX1,XBFX2,XBFX3,XBFX4,XBFY1,XBFY2,XBFY3,XBFY4, &
                   KXOR,KYOR,KXEND,KYEND,KDXRATIO,KDYRATIO,4,       &
                   LBC_MODEL(1)%CLBCX,LBC_MODEL(1)%CLBCY,LSFIELD_MODEL(1)%XLSWM,PLSWM)
    CALL BIKHARDT (XBMX1,XBMX2,XBMX3,XBMX4,XBMY1,XBMY2,XBMY3,XBMY4, &
                   XBFX1,XBFX2,XBFX3,XBFX4,XBFY1,XBFY2,XBFY3,XBFY4, &
                   KXOR,KYOR,KXEND,KYEND,KDXRATIO,KDYRATIO,1,       &
                   LBC_MODEL(1)%CLBCX,LBC_MODEL(1)%CLBCY,ZTHVM,PTHVM)
    CALL BIKHARDT (XBMX1,XBMX2,XBMX3,XBMX4,XBMY1,XBMY2,XBMY3,XBMY4, &
                   XBFX1,XBFX2,XBFX3,XBFX4,XBFY1,XBFY2,XBFY3,XBFY4, &
                   KXOR,KYOR,KXEND,KYEND,KDXRATIO,KDYRATIO,1,       &
                   LBC_MODEL(1)%CLBCX,LBC_MODEL(1)%CLBCY,LSFIELD_MODEL(1)%XLSTHM,PLSTHM)
    IF (HTURB /= 'NONE')                                            &
    CALL BIKHARDT (XBMX1,XBMX2,XBMX3,XBMX4,XBMY1,XBMY2,XBMY3,XBMY4, &
                   XBFX1,XBFX2,XBFX3,XBFX4,XBFY1,XBFY2,XBFY3,XBFY4, &
                   KXOR,KYOR,KXEND,KYEND,KDXRATIO,KDYRATIO,1,       &
                   LBC_MODEL(1)%CLBCX,LBC_MODEL(1)%CLBCY,FIELD_MODEL(1)%XTKEM,PTKEM)
    IF (CONF_MODEL(1)%NRR>=1)                                                     &
    CALL BIKHARDT (XBMX1,XBMX2,XBMX3,XBMX4,XBMY1,XBMY2,XBMY3,XBMY4, &
                   XBFX1,XBFX2,XBFX3,XBFX4,XBFY1,XBFY2,XBFY3,XBFY4, &
                   KXOR,KYOR,KXEND,KYEND,KDXRATIO,KDYRATIO,1,       &
                   LBC_MODEL(1)%CLBCX,LBC_MODEL(1)%CLBCY,FIELD_MODEL(1)%XRM,PRM)
    IF (CONF_MODEL(1)%NRR>=1)                                                     &
    CALL BIKHARDT (XBMX1,XBMX2,XBMX3,XBMX4,XBMY1,XBMY2,XBMY3,XBMY4, &
                   XBFX1,XBFX2,XBFX3,XBFX4,XBFY1,XBFY2,XBFY3,XBFY4, &
                   KXOR,KYOR,KXEND,KYEND,KDXRATIO,KDYRATIO,1,       &
                   LBC_MODEL(1)%CLBCX,LBC_MODEL(1)%CLBCY,LSFIELD_MODEL(1)%XLSRVM,PLSRVM)
    IF (CONF_MODEL(1)%NRR>=1)                                                     &
    CALL BIKHARDT (XBMX1,XBMX2,XBMX3,XBMX4,XBMY1,XBMY2,XBMY3,XBMY4, &
                   XBFX1,XBFX2,XBFX3,XBFX4,XBFY1,XBFY2,XBFY3,XBFY4, &
                   KXOR,KYOR,KXEND,KYEND,KDXRATIO,KDYRATIO,1,       &
                   LBC_MODEL(1)%CLBCX,LBC_MODEL(1)%CLBCY,ZHUM,PHUM)
    IF (NSV>=1)                                                     &
    CALL BIKHARDT (XBMX1,XBMX2,XBMX3,XBMX4,XBMY1,XBMY2,XBMY3,XBMY4, &
                   XBFX1,XBFX2,XBFX3,XBFX4,XBFY1,XBFY2,XBFY3,XBFY4, &
                   KXOR,KYOR,KXEND,KYEND,KDXRATIO,KDYRATIO,1,       &
                   LBC_MODEL(1)%CLBCX,LBC_MODEL(1)%CLBCY,FIELD_MODEL(1)%XSVM,PSVM)
!
!                        Interpolation of variables at t
!
    CALL BIKHARDT (XBMX1,XBMX2,XBMX3,XBMX4,XBMY1,XBMY2,XBMY3,XBMY4, &
                   XBFX1,XBFX2,XBFX3,XBFX4,XBFY1,XBFY2,XBFY3,XBFY4, &
                   KXOR,KYOR,KXEND,KYEND,KDXRATIO,KDYRATIO,4,       &
                   LBC_MODEL(1)%CLBCX,LBC_MODEL(1)%CLBCY,FIELD_MODEL(1)%XWT,PWT)
    CALL BIKHARDT (XBMX1,XBMX2,XBMX3,XBMX4,XBMY1,XBMY2,XBMY3,XBMY4, &
                   XBFX1,XBFX2,XBFX3,XBFX4,XBFY1,XBFY2,XBFY3,XBFY4, &
                   KXOR,KYOR,KXEND,KYEND,KDXRATIO,KDYRATIO,1,       &
                   LBC_MODEL(1)%CLBCX,LBC_MODEL(1)%CLBCY,ZTHVT,PTHVT)
    IF (HTURB /= 'NONE')                                            &
    CALL BIKHARDT (XBMX1,XBMX2,XBMX3,XBMX4,XBMY1,XBMY2,XBMY3,XBMY4, &
                   XBFX1,XBFX2,XBFX3,XBFX4,XBFY1,XBFY2,XBFY3,XBFY4, &
                   KXOR,KYOR,KXEND,KYEND,KDXRATIO,KDYRATIO,1,       &
                   LBC_MODEL(1)%CLBCX,LBC_MODEL(1)%CLBCY,FIELD_MODEL(1)%XTKET,PTKET)
!
    IF (CONF_MODEL(1)%NRR>=1)                                                     &
    CALL BIKHARDT (XBMX1,XBMX2,XBMX3,XBMX4,XBMY1,XBMY2,XBMY3,XBMY4, &
                   XBFX1,XBFX2,XBFX3,XBFX4,XBFY1,XBFY2,XBFY3,XBFY4, &
                   KXOR,KYOR,KXEND,KYEND,KDXRATIO,KDYRATIO,1,       &
                   LBC_MODEL(1)%CLBCX,LBC_MODEL(1)%CLBCY,ZHUT,PHUT)

    IF (CONF_MODEL(1)%NRR>=1)                                                     &
    CALL BIKHARDT (XBMX1,XBMX2,XBMX3,XBMX4,XBMY1,XBMY2,XBMY3,XBMY4, &
                   XBFX1,XBFX2,XBFX3,XBFX4,XBFY1,XBFY2,XBFY3,XBFY4, &
                   KXOR,KYOR,KXEND,KYEND,KDXRATIO,KDYRATIO,1,       &
                   LBC_MODEL(1)%CLBCX,LBC_MODEL(1)%CLBCY,FIELD_MODEL(1)%XRT,PRT)
    IF (NSV>=1)                                                     &
    CALL BIKHARDT (XBMX1,XBMX2,XBMX3,XBMX4,XBMY1,XBMY2,XBMY3,XBMY4, &
                   XBFX1,XBFX2,XBFX3,XBFX4,XBFY1,XBFY2,XBFY3,XBFY4, &
                   KXOR,KYOR,KXEND,KYEND,KDXRATIO,KDYRATIO,1,       &
                   LBC_MODEL(1)%CLBCX,LBC_MODEL(1)%CLBCY,FIELD_MODEL(1)%XSVT,PSVT)
    IF (CONF_MODEL(1)%NRR>1 .AND. HTURB /='NONE')                                &
    CALL BIKHARDT (XBMX1,XBMX2,XBMX3,XBMX4,XBMY1,XBMY2,XBMY3,XBMY4, &
                   XBFX1,XBFX2,XBFX3,XBFX4,XBFY1,XBFY2,XBFY3,XBFY4, &
                   KXOR,KYOR,KXEND,KYEND,KDXRATIO,KDYRATIO,1,       &
                   LBC_MODEL(1)%CLBCX,LBC_MODEL(1)%CLBCY,FIELD_MODEL(1)%XSRCM,PSRCM)
    IF (CONF_MODEL(1)%NRR>1 .AND. HTURB /='NONE')                                &
    CALL BIKHARDT (XBMX1,XBMX2,XBMX3,XBMX4,XBMY1,XBMY2,XBMY3,XBMY4, &
                   XBFX1,XBFX2,XBFX3,XBFX4,XBFY1,XBFY2,XBFY3,XBFY4, &
                   KXOR,KYOR,KXEND,KYEND,KDXRATIO,KDYRATIO,1,       &
                   LBC_MODEL(1)%CLBCX,LBC_MODEL(1)%CLBCY,FIELD_MODEL(1)%XSRCT,PSRCT)
    IF (CONF_MODEL(1)%NRR>1 .AND. HTURB /='NONE')                                &
    CALL BIKHARDT (XBMX1,XBMX2,XBMX3,XBMX4,XBMY1,XBMY2,XBMY3,XBMY4, &
                   XBFX1,XBFX2,XBFX3,XBFX4,XBFY1,XBFY2,XBFY3,XBFY4, &
                   KXOR,KYOR,KXEND,KYEND,KDXRATIO,KDYRATIO,1,       &
                   LBC_MODEL(1)%CLBCX,LBC_MODEL(1)%CLBCY,FIELD_MODEL(1)%XSIGS,PSIGS)
!
    IF ( L2D_ADV_FRC ) THEN      ! MT adding for ADVFRC
       CALL BIKHARDT (XBMX1,XBMX2,XBMX3,XBMX4,XBMY1,XBMY2,XBMY3,XBMY4, &
                      XBFX1,XBFX2,XBFX3,XBFX4,XBFY1,XBFY2,XBFY3,XBFY4, &
                      KXOR,KYOR,KXEND,KYEND,KDXRATIO,KDYRATIO,1,       &
                      LBC_MODEL(1)%CLBCX,LBC_MODEL(1)%CLBCY,           &
                      ADVFRC_MODEL(1)%XDTHFRC,PDTHFRC)
       CALL BIKHARDT (XBMX1,XBMX2,XBMX3,XBMX4,XBMY1,XBMY2,XBMY3,XBMY4, &
                      XBFX1,XBFX2,XBFX3,XBFX4,XBFY1,XBFY2,XBFY3,XBFY4, &
                      KXOR,KYOR,KXEND,KYEND,KDXRATIO,KDYRATIO,1,       &
                      LBC_MODEL(1)%CLBCX,LBC_MODEL(1)%CLBCY,           &
                      ADVFRC_MODEL(1)%XDRVFRC,PDRVFRC)
    ENDIF
    IF (L2D_REL_FRC) THEN      ! MT adding for REL FRC
       WRITE(ILUOUT,FMT=*) 'SPAWN_FIELD2: Appel a BIKHARDT pour RELFRC'
       CALL BIKHARDT (XBMX1,XBMX2,XBMX3,XBMX4,XBMY1,XBMY2,XBMY3,XBMY4, &
                      XBFX1,XBFX2,XBFX3,XBFX4,XBFY1,XBFY2,XBFY3,XBFY4, &
                      KXOR,KYOR,KXEND,KYEND,KDXRATIO,KDYRATIO,1,       &
                      LBC_MODEL(1)%CLBCX,LBC_MODEL(1)%CLBCY,           &
                      RELFRC_MODEL(1)%XTHREL,PTHREL)
       CALL BIKHARDT (XBMX1,XBMX2,XBMX3,XBMX4,XBMY1,XBMY2,XBMY3,XBMY4, &
                      XBFX1,XBFX2,XBFX3,XBFX4,XBFY1,XBFY2,XBFY3,XBFY4, &
                      KXOR,KYOR,KXEND,KYEND,KDXRATIO,KDYRATIO,1,       &
                      LBC_MODEL(1)%CLBCX,LBC_MODEL(1)%CLBCY,           &
                      RELFRC_MODEL(1)%XRVREL,PRVREL)
    ENDIF
!
    IF ( LUV_FLX) THEN      ! MT adding for EDDY_FLUX
       CALL BIKHARDT (XBMX1,XBMX2,XBMX3,XBMX4,XBMY1,XBMY2,XBMY3,XBMY4, &
                      XBFX1,XBFX2,XBFX3,XBFX4,XBFY1,XBFY2,XBFY3,XBFY4, &
                      KXOR,KYOR,KXEND,KYEND,KDXRATIO,KDYRATIO,1,       &
                      LBC_MODEL(1)%CLBCX,LBC_MODEL(1)%CLBCY,           &
                      EDDYUV_FLUX_MODEL(1)%XVU_FLUX_M,PVU_FLUX_M)
    ENDIF

    IF (LTH_FLX) THEN
       CALL BIKHARDT (XBMX1,XBMX2,XBMX3,XBMX4,XBMY1,XBMY2,XBMY3,XBMY4, &
                      XBFX1,XBFX2,XBFX3,XBFX4,XBFY1,XBFY2,XBFY3,XBFY4, &
                      KXOR,KYOR,KXEND,KYEND,KDXRATIO,KDYRATIO,1,       &
                      LBC_MODEL(1)%CLBCX,LBC_MODEL(1)%CLBCY,           &
                      EDDY_FLUX_MODEL(1)%XVTH_FLUX_M,PVTH_FLUX_M)
       CALL BIKHARDT (XBMX1,XBMX2,XBMX3,XBMX4,XBMY1,XBMY2,XBMY3,XBMY4, &
                      XBFX1,XBFX2,XBFX3,XBFX4,XBFY1,XBFY2,XBFY3,XBFY4, &
                      KXOR,KYOR,KXEND,KYEND,KDXRATIO,KDYRATIO,1,       &
                      LBC_MODEL(1)%CLBCX,LBC_MODEL(1)%CLBCY,           &
                      EDDY_FLUX_MODEL(1)%XWTH_FLUX_M,PWTH_FLUX_M)
    ENDIF
!
END IF
!
IF (CONF_MODEL(1)%NRR>=3) THEN
  WHERE  (PRM(:,:,:,3)<1.E-20)
    PRM(:,:,:,3)=0.
  END WHERE
  WHERE  (PRT(:,:,:,3)<1.E-20)
    PRT(:,:,:,3)=0.
  END WHERE
END IF
!
!
!*       2.2.3  Informations from model SON1
! (LS fields are not treated because they are identical in the father file)
!
IF (PRESENT(HSONFILE)) THEN
  YDIR='XY'
  !
  !variables which always exist
  !
  YRECFM='UM'             ! U wind component at time t-dt
  CALL FMREAD(HSONFILE,YRECFM,CLUOUT,YDIR,ZWORK3D,IGRID,ILENCH,YCOMMENT,IRESP)
  PUM(KIB2:KIE2,KJB2:KJE2,:) = ZWORK3D(KIB1:KIE1,KJB1:KJE1,:)
  YRECFM='UT'             ! U wind component at time t
  CALL FMREAD(HSONFILE,YRECFM,CLUOUT,YDIR,ZWORK3D,IGRID,ILENCH,YCOMMENT,IRESP)
  PUT(KIB2:KIE2,KJB2:KJE2,:) = ZWORK3D(KIB1:KIE1,KJB1:KJE1,:)
  YRECFM='VM'             ! V wind component at time t-dt
  CALL FMREAD(HSONFILE,YRECFM,CLUOUT,YDIR,ZWORK3D,IGRID,ILENCH,YCOMMENT,IRESP)
  PVM(KIB2:KIE2,KJB2:KJE2,:) = ZWORK3D(KIB1:KIE1,KJB1:KJE1,:)
  YRECFM='VT'             ! V wind component at time t
  CALL FMREAD(HSONFILE,YRECFM,CLUOUT,YDIR,ZWORK3D,IGRID,ILENCH,YCOMMENT,IRESP)
  PVT(KIB2:KIE2,KJB2:KJE2,:) = ZWORK3D(KIB1:KIE1,KJB1:KJE1,:)
  YRECFM='WM'             ! W wind component at time t-dt
  CALL FMREAD(HSONFILE,YRECFM,CLUOUT,YDIR,ZWORK3D,IGRID,ILENCH,YCOMMENT,IRESP)
  PWM(KIB2:KIE2,KJB2:KJE2,:) = ZWORK3D(KIB1:KIE1,KJB1:KJE1,:)
  YRECFM='WT'             ! W wind component at time t
  CALL FMREAD(HSONFILE,YRECFM,CLUOUT,YDIR,ZWORK3D,IGRID,ILENCH,YCOMMENT,IRESP)
  PWT(KIB2:KIE2,KJB2:KJE2,:) = ZWORK3D(KIB1:KIE1,KJB1:KJE1,:)
  !
  ! moist variables
  !
  IRR=1
  IF (IRR<=CONF_MODEL(1)%NRR) THEN
    GUSERV=.TRUE.
    YRECFM='RVM'             ! Vapor at time t-dt
    CALL FMREAD(HSONFILE,YRECFM,CLUOUT,YDIR,ZWORK3D,IGRID,ILENCH,YCOMMENT,IRESP)
    IF(IRESP==0) ZRM1(:,:,:,IRR)=ZWORK3D(KIB1:KIE1,KJB1:KJE1,:)
    YRECFM='RVT'             ! Vapor at time t
    CALL FMREAD(HSONFILE,YRECFM,CLUOUT,YDIR,ZWORK3D,IGRID,ILENCH,YCOMMENT,IRESP)
    IF(IRESP==0) ZRT1(:,:,:,IRR)=ZWORK3D(KIB1:KIE1,KJB1:KJE1,:)
    IF(IRESP==0) IRR=IRR+1
  END IF
  IF (IRR<=CONF_MODEL(1)%NRR) THEN
    YRECFM='RCM'             ! Cloud at time t-dt
    CALL FMREAD(HSONFILE,YRECFM,CLUOUT,YDIR,ZWORK3D,IGRID,ILENCH,YCOMMENT,IRESP)
    IF(IRESP==0) ZRM1(:,:,:,IRR)=ZWORK3D(KIB1:KIE1,KJB1:KJE1,:)
    YRECFM='RCT'             ! Cloud at time t
    CALL FMREAD(HSONFILE,YRECFM,CLUOUT,YDIR,ZWORK3D,IGRID,ILENCH,YCOMMENT,IRESP)
    IF(IRESP==0) ZRT1(:,:,:,IRR)=ZWORK3D(KIB1:KIE1,KJB1:KJE1,:)
    IF(IRESP==0) IRR=IRR+1
  END IF
  IF (IRR<=CONF_MODEL(1)%NRR) THEN
    YRECFM='RRM'             ! Rain at time t-dt
    CALL FMREAD(HSONFILE,YRECFM,CLUOUT,YDIR,ZWORK3D,IGRID,ILENCH,YCOMMENT,IRESP)
    IF(IRESP==0) ZRM1(:,:,:,IRR)=ZWORK3D(KIB1:KIE1,KJB1:KJE1,:)
    YRECFM='RRT'             ! Rain at time t
    CALL FMREAD(HSONFILE,YRECFM,CLUOUT,YDIR,ZWORK3D,IGRID,ILENCH,YCOMMENT,IRESP)
    IF(IRESP==0) ZRT1(:,:,:,IRR)=ZWORK3D(KIB1:KIE1,KJB1:KJE1,:)
    IF(IRESP==0) IRR=IRR+1
  END IF
  IF (IRR<=CONF_MODEL(1)%NRR) THEN
    YRECFM='RIM'             ! Ice at time t-dt
    CALL FMREAD(HSONFILE,YRECFM,CLUOUT,YDIR,ZWORK3D,IGRID,ILENCH,YCOMMENT,IRESP)
    IF(IRESP==0) ZRM1(:,:,:,IRR)=ZWORK3D(KIB1:KIE1,KJB1:KJE1,:)
    YRECFM='RIT'             ! Ice at time t
    CALL FMREAD(HSONFILE,YRECFM,CLUOUT,YDIR,ZWORK3D,IGRID,ILENCH,YCOMMENT,IRESP)
    IF(IRESP==0) ZRT1(:,:,:,IRR)=ZWORK3D(KIB1:KIE1,KJB1:KJE1,:)
    IF(IRESP==0) IRR=IRR+1
  END IF
  IF (IRR<=CONF_MODEL(1)%NRR) THEN
    YRECFM='RSM'             ! Snow at time t-dt
    CALL FMREAD(HSONFILE,YRECFM,CLUOUT,YDIR,ZWORK3D,IGRID,ILENCH,YCOMMENT,IRESP)
    IF(IRESP==0) ZRM1(:,:,:,IRR)=ZWORK3D(KIB1:KIE1,KJB1:KJE1,:)
    YRECFM='RST'             ! Snow at time t
    CALL FMREAD(HSONFILE,YRECFM,CLUOUT,YDIR,ZWORK3D,IGRID,ILENCH,YCOMMENT,IRESP)
    IF(IRESP==0) ZRT1(:,:,:,IRR)=ZWORK3D(KIB1:KIE1,KJB1:KJE1,:)
    IF(IRESP==0) IRR=IRR+1
  END IF
  IF (IRR<=CONF_MODEL(1)%NRR) THEN
    YRECFM='RGM'             ! Graupel at time t-dt
    CALL FMREAD(HSONFILE,YRECFM,CLUOUT,YDIR,ZWORK3D,IGRID,ILENCH,YCOMMENT,IRESP)
    IF(IRESP==0) ZRM1(:,:,:,IRR)=ZWORK3D(KIB1:KIE1,KJB1:KJE1,:)
    YRECFM='RGT'             ! Graupel at time t
    CALL FMREAD(HSONFILE,YRECFM,CLUOUT,YDIR,ZWORK3D,IGRID,ILENCH,YCOMMENT,IRESP)
    IF(IRESP==0) ZRT1(:,:,:,IRR)=ZWORK3D(KIB1:KIE1,KJB1:KJE1,:)
    IF(IRESP==0) IRR=IRR+1
  END IF
  IF (IRR<=CONF_MODEL(1)%NRR) THEN
    YRECFM='RHM'             ! Hail at time t-dt
    CALL FMREAD(HSONFILE,YRECFM,CLUOUT,YDIR,ZWORK3D,IGRID,ILENCH,YCOMMENT,IRESP)
    IF(IRESP==0) ZRM1(:,:,:,IRR)=ZWORK3D(KIB1:KIE1,KJB1:KJE1,:)
    YRECFM='RHT'             ! Hail at time t
    CALL FMREAD(HSONFILE,YRECFM,CLUOUT,YDIR,ZWORK3D,IGRID,ILENCH,YCOMMENT,IRESP)
    IF(IRESP==0) ZRT1(:,:,:,IRR)=ZWORK3D(KIB1:KIE1,KJB1:KJE1,:)
    IF(IRESP==0) IRR=IRR+1
  END IF
  IRR=IRR-1
  WRITE(ILUOUT,FMT=*) 'SPAWN_FIELD2: spawing with a SON input file'
  WRITE(ILUOUT,FMT=*) '    ',CONF_MODEL(1)%NRR,' moist variables in model1 and model2, ',    &
                             IRR,' moist variables in input SON'
  YRECFM='THM'               ! Theta at time t-dt
  CALL FMREAD(HSONFILE,YRECFM,CLUOUT,YDIR,ZWORK3D,IGRID,ILENCH,YCOMMENT,IRESP)
  ZTHM1(:,:,:)=ZWORK3D(KIB1:KIE1,KJB1:KJE1,:)
  YRECFM='THT'               ! Theta at time t
  CALL FMREAD(HSONFILE,YRECFM,CLUOUT,YDIR,ZWORK3D,IGRID,ILENCH,YCOMMENT,IRESP)
  ZTHT1(:,:,:)=ZWORK3D(KIB1:KIE1,KJB1:KJE1,:)
  YRECFM='PABSM'             ! Pressure at time t-dt
  CALL FMREAD(HSONFILE,YRECFM,CLUOUT,YDIR,ZWORK3D,IGRID,ILENCH,YCOMMENT,IRESP)
  ZPABSM1(:,:,:)=ZWORK3D(KIB1:KIE1,KJB1:KJE1,:)
  YRECFM='PABST'             ! Pressure at time t
  CALL FMREAD(HSONFILE,YRECFM,CLUOUT,YDIR,ZWORK3D,IGRID,ILENCH,YCOMMENT,IRESP)
  ZPABST1(:,:,:)=ZWORK3D(KIB1:KIE1,KJB1:KJE1,:)
  !
  CALL COMPUTE_THV_HU(GUSERV,ZRM1,ZTHM1,ZPABSM1,ZTHVM1,ZHUM1)
  CALL COMPUTE_THV_HU(GUSERV,ZRT1,ZTHT1,ZPABST1,ZTHVT1,ZHUT1)
  !
  PTHVM(KIB2:KIE2,KJB2:KJE2,:) = ZTHVM1(:,:,:)  
  PTHVT(KIB2:KIE2,KJB2:KJE2,:) = ZTHVT1(:,:,:)
  IF (CONF_MODEL(1)%NRR /= 0) THEN
    PHUM(KIB2:KIE2,KJB2:KJE2,:) = ZHUM1(:,:,:)  
    PHUT(KIB2:KIE2,KJB2:KJE2,:) = ZHUT1(:,:,:)  
    PRM(KIB2:KIE2,KJB2:KJE2,:,:) = ZRM1(:,:,:,:) 
    PRT(KIB2:KIE2,KJB2:KJE2,:,:) = ZRT1(:,:,:,:)  
  END IF
  !
  ! TKE variables
  !
  IF (HTURB/='NONE') THEN
    YRECFM='TKEM'             ! Turbulence Kinetic Energy at time t-dt
    CALL FMREAD(HSONFILE,YRECFM,CLUOUT,YDIR,ZWORK3D,IGRID,ILENCH,YCOMMENT,IRESP)
    IF(IRESP==0) PTKEM(KIB2:KIE2,KJB2:KJE2,:)=ZWORK3D(KIB1:KIE1,KJB1:KJE1,:)
    YRECFM='TKET'             ! Turbulence Kinetic Energy at time t
    CALL FMREAD(HSONFILE,YRECFM,CLUOUT,YDIR,ZWORK3D,IGRID,ILENCH,YCOMMENT,IRESP)
    IF(IRESP==0) PTKET(KIB2:KIE2,KJB2:KJE2,:)=ZWORK3D(KIB1:KIE1,KJB1:KJE1,:)
  END IF
  !
  ! Scalar variables
  !
  IF (NSV /= 0) THEN
    DO JSV = 1, NSV_USER      ! Users Scalar Variables
      WRITE(YRECFM,'(A3,I3.3)')'SVM',JSV
      CALL FMREAD(HSONFILE,YRECFM,CLUOUT,YDIR,ZWORK3D,IGRID,ILENCH,  &
                  YCOMMENT,IRESP)
      IF(IRESP==0) PSVM(KIB2:KIE2,KJB2:KJE2,:,JSV)=ZWORK3D(KIB1:KIE1,KJB1:KJE1,:)
      WRITE(YRECFM,'(A3,I3.3)')'SVT',JSV
      CALL FMREAD(HSONFILE,YRECFM,CLUOUT,YDIR,ZWORK3D,IGRID,ILENCH,  &
                  YCOMMENT,IRESP)
      IF(IRESP==0) PSVT(KIB2:KIE2,KJB2:KJE2,:,JSV)=ZWORK3D(KIB1:KIE1,KJB1:KJE1,:)
    END DO
    DO JSV = NSV_C2R2BEG,NSV_C2R2END  ! C2R2 Scalar Variables
      YRECFM=TRIM(C2R2NAMES(JSV-NSV_C2R2BEG+1))//'M'
      CALL FMREAD(HSONFILE,YRECFM,CLUOUT,YDIR,ZWORK3D,IGRID,ILENCH,  &
                  YCOMMENT,IRESP)
      IF(IRESP==0) PSVM(KIB2:KIE2,KJB2:KJE2,:,JSV)=ZWORK3D(KIB1:KIE1,KJB1:KJE1,:)
      YRECFM=TRIM(C2R2NAMES(JSV-NSV_C2R2BEG+1))//'T'
      CALL FMREAD(HSONFILE,YRECFM,CLUOUT,YDIR,ZWORK3D,IGRID,ILENCH,  &
                  YCOMMENT,IRESP)
      IF(IRESP==0) PSVT(KIB2:KIE2,KJB2:KJE2,:,JSV)=ZWORK3D(KIB1:KIE1,KJB1:KJE1,:)
    END DO
    DO JSV = NSV_ELECBEG,NSV_ELECEND  ! ELEC Scalar Variables
      YRECFM=TRIM(CELECNAMES(JSV-NSV_ELECBEG+1))//'M'
      CALL FMREAD(HSONFILE,YRECFM,CLUOUT,YDIR,ZWORK3D,IGRID,ILENCH,  &
                  YCOMMENT,IRESP)
      IF(IRESP==0) PSVM(KIB2:KIE2,KJB2:KJE2,:,JSV)=ZWORK3D(KIB1:KIE1,KJB1:KJE1,:)
      YRECFM=TRIM(CELECNAMES(JSV-NSV_ELECBEG+1))//'T'
      CALL FMREAD(HSONFILE,YRECFM,CLUOUT,YDIR,ZWORK3D,IGRID,ILENCH,  &
                  YCOMMENT,IRESP)
      IF(IRESP==0) PSVT(KIB2:KIE2,KJB2:KJE2,:,JSV)=ZWORK3D(KIB1:KIE1,KJB1:KJE1,:)
    END DO
    DO JSV = NSV_CHEMBEG,NSV_CHEMEND ! Chemical Scalar Variables
      YRECFM=TRIM(CNAMES(JSV-NSV_CHEMBEG+1))//'M'
      CALL FMREAD(HSONFILE,YRECFM,CLUOUT,YDIR,ZWORK3D,IGRID,ILENCH,  &
                  YCOMMENT,IRESP)
      IF(IRESP==0) PSVM(KIB2:KIE2,KJB2:KJE2,:,JSV)=ZWORK3D(KIB1:KIE1,KJB1:KJE1,:)
      YRECFM=TRIM(CNAMES(JSV-NSV_CHEMBEG+1))//'T'
      CALL FMREAD(HSONFILE,YRECFM,CLUOUT,YDIR,ZWORK3D,IGRID,ILENCH,  &
                  YCOMMENT,IRESP)
      IF(IRESP==0) PSVT(KIB2:KIE2,KJB2:KJE2,:,JSV)=ZWORK3D(KIB1:KIE1,KJB1:KJE1,:)
    END DO
    DO JSV = NSV_CHICBEG,NSV_CHICEND ! Ice phase chemical Scalar Variables
      YRECFM=TRIM(CICNAMES(JSV-NSV_CHICBEG+1))//'M'
      CALL FMREAD(HSONFILE,YRECFM,CLUOUT,YDIR,ZWORK3D,IGRID,ILENCH,  &
                  YCOMMENT,IRESP)
      IF(IRESP==0) PSVM(KIB2:KIE2,KJB2:KJE2,:,JSV)=ZWORK3D(KIB1:KIE1,KJB1:KJE1,:)
      YRECFM=TRIM(CICNAMES(JSV-NSV_CHICBEG+1))//'T'
      CALL FMREAD(HSONFILE,YRECFM,CLUOUT,YDIR,ZWORK3D,IGRID,ILENCH,  &
                  YCOMMENT,IRESP)
      IF(IRESP==0) PSVT(KIB2:KIE2,KJB2:KJE2,:,JSV)=ZWORK3D(KIB1:KIE1,KJB1:KJE1,:)
    END DO
    DO JSV = NSV_AERBEG,NSV_AEREND ! Orilam Scalar Variables
      YRECFM=TRIM(UPCASE(CAERONAMES(JSV-NSV_AERBEG+1)))//'M'
      CALL FMREAD(HSONFILE,YRECFM,CLUOUT,YDIR,ZWORK3D,IGRID,ILENCH,  &
                  YCOMMENT,IRESP)
      IF(IRESP==0) PSVM(KIB2:KIE2,KJB2:KJE2,:,JSV)=ZWORK3D(KIB1:KIE1,KJB1:KJE1,:)
      YRECFM=TRIM(UPCASE(CAERONAMES(JSV-NSV_AERBEG+1)))//'T'
      CALL FMREAD(HSONFILE,YRECFM,CLUOUT,YDIR,ZWORK3D,IGRID,ILENCH,  &
                  YCOMMENT,IRESP)
      IF(IRESP==0) PSVT(KIB2:KIE2,KJB2:KJE2,:,JSV)=ZWORK3D(KIB1:KIE1,KJB1:KJE1,:)
    END DO
    DO JSV = NSV_DSTBEG,NSV_DSTEND ! Dust Scalar Variables
      YRECFM=TRIM(CDUSTNAMES(JSV-NSV_DSTBEG+1))//'M'
      CALL FMREAD(HSONFILE,YRECFM,CLUOUT,YDIR,ZWORK3D,IGRID,ILENCH,  &
                  YCOMMENT,IRESP)
      IF(IRESP==0) PSVM(KIB2:KIE2,KJB2:KJE2,:,JSV)=ZWORK3D(KIB1:KIE1,KJB1:KJE1,:)
      YRECFM=TRIM(CDUSTNAMES(JSV-NSV_DSTBEG+1))//'T'
      CALL FMREAD(HSONFILE,YRECFM,CLUOUT,YDIR,ZWORK3D,IGRID,ILENCH,  &
                  YCOMMENT,IRESP)
      IF(IRESP==0) PSVT(KIB2:KIE2,KJB2:KJE2,:,JSV)=ZWORK3D(KIB1:KIE1,KJB1:KJE1,:)
    END DO
    DO JSV = NSV_SLTBEG,NSV_SLTEND ! Sea Salt Scalar Variables
      YRECFM=TRIM(CSALTNAMES(JSV-NSV_SLTBEG+1))//'M'
      CALL FMREAD(HSONFILE,YRECFM,CLUOUT,YDIR,ZWORK3D,IGRID,ILENCH,  &
                  YCOMMENT,IRESP)
      IF(IRESP==0) PSVM(KIB2:KIE2,KJB2:KJE2,:,JSV)=ZWORK3D(KIB1:KIE1,KJB1:KJE1,:)
      YRECFM=TRIM(CSALTNAMES(JSV-NSV_SLTBEG+1))//'T'
      CALL FMREAD(HSONFILE,YRECFM,CLUOUT,YDIR,ZWORK3D,IGRID,ILENCH,  &
                  YCOMMENT,IRESP)
      IF(IRESP==0) PSVT(KIB2:KIE2,KJB2:KJE2,:,JSV)=ZWORK3D(KIB1:KIE1,KJB1:KJE1,:)
    END DO
    DO JSV = NSV_LGBEG,NSV_LGEND     ! LG Scalar Variables
      YRECFM=TRIM(CLGNAMES(JSV-NSV_LGBEG+1))//'M'
      CALL FMREAD(HSONFILE,YRECFM,CLUOUT,YDIR,ZWORK3D,IGRID,ILENCH,  &
                  YCOMMENT,IRESP)
      IF(IRESP==0) PSVM(KIB2:KIE2,KJB2:KJE2,:,JSV)=ZWORK3D(KIB1:KIE1,KJB1:KJE1,:)
      YRECFM=TRIM(CLGNAMES(JSV-NSV_LGBEG+1))//'T'
      CALL FMREAD(HSONFILE,YRECFM,CLUOUT,YDIR,ZWORK3D,IGRID,ILENCH,  &
                  YCOMMENT,IRESP)
      IF(IRESP==0) PSVT(KIB2:KIE2,KJB2:KJE2,:,JSV)=ZWORK3D(KIB1:KIE1,KJB1:KJE1,:)
    END DO
    DO JSV = NSV_PPBEG,NSV_PPEND     ! Passive scalar variables
      WRITE(YRECFM,'(A3,I3.3)')'SVM',JSV
      CALL FMREAD(HSONFILE,YRECFM,CLUOUT,YDIR,ZWORK3D,IGRID,ILENCH,  &
                  YCOMMENT,IRESP)
      IF(IRESP==0) PSVM(KIB2:KIE2,KJB2:KJE2,:,JSV)=ZWORK3D(KIB1:KIE1,KJB1:KJE1,:)
      WRITE(YRECFM,'(A3,I3.3)')'SVT',JSV
      CALL FMREAD(HSONFILE,YRECFM,CLUOUT,YDIR,ZWORK3D,IGRID,ILENCH,  &
                  YCOMMENT,IRESP)
      IF(IRESP==0) PSVT(KIB2:KIE2,KJB2:KJE2,:,JSV)=ZWORK3D(KIB1:KIE1,KJB1:KJE1,:)
    END DO
    DO JSV = NSV_CSBEG,NSV_CSEND     ! Passive scalar variables
      WRITE(YRECFM,'(A3,I3.3)')'SVM',JSV
      CALL FMREAD(HSONFILE,YRECFM,CLUOUT,YDIR,ZWORK3D,IGRID,ILENCH,  &
                  YCOMMENT,IRESP)
      IF(IRESP==0) PSVM(KIB2:KIE2,KJB2:KJE2,:,JSV)=ZWORK3D(KIB1:KIE1,KJB1:KJE1,:)
      WRITE(YRECFM,'(A3,I3.3)')'SVT',JSV
      CALL FMREAD(HSONFILE,YRECFM,CLUOUT,YDIR,ZWORK3D,IGRID,ILENCH,  &
                  YCOMMENT,IRESP)
      IF(IRESP==0) PSVT(KIB2:KIE2,KJB2:KJE2,:,JSV)=ZWORK3D(KIB1:KIE1,KJB1:KJE1,:)
    END DO
    DO JSV = 1,NSV_PP               ! Passive scalar variables
      YRECFM='ATC'
      CALL FMREAD(HSONFILE,YRECFM,CLUOUT,YDIR,ZWORK3D,IGRID,ILENCH,YCOMMENT,IRESP)
      IF(IRESP==0) PATC(KIB2:KIE2,KJB2:KJE2,:,JSV)=ZWORK3D(KIB1:KIE1,KJB1:KJE1,:)
    END DO
  END IF
  !
  ! Secondary pronostic variables
  !
  IF (HTURB /= 'NONE' .AND. IRR>1) THEN
    YRECFM='SRCM'                  ! turbulent flux SRC at time t-dt
    CALL FMREAD(HSONFILE,YRECFM,CLUOUT,YDIR,ZWORK3D,IGRID,ILENCH,YCOMMENT,IRESP)
    IF( IRESP /= 0 ) THEN
      YRECFM='SRC'
      CALL FMREAD(HSONFILE,YRECFM,CLUOUT,YDIR,ZWORK3D,IGRID,ILENCH,          &
                  YCOMMENT,IRESP)
    END IF
    IF(IRESP == 0) PSRCM(KIB2:KIE2,KJB2:KJE2,:) =                    &
                                        ZWORK3D(KIB1:KIE1,KJB1:KJE1,:)
    YRECFM='SRCT'                  ! turbulent flux SRC at time t
    CALL FMREAD(HSONFILE,YRECFM,CLUOUT,YDIR,ZWORK3D,IGRID,ILENCH,YCOMMENT,IRESP)
    IF( IRESP /= 0 ) THEN
      YRECFM='SRC'
      CALL FMREAD(HSONFILE,YRECFM,CLUOUT,YDIR,ZWORK3D,IGRID,ILENCH,          &
                  YCOMMENT,IRESP)
    END IF
    IF(IRESP == 0) PSRCT(KIB2:KIE2,KJB2:KJE2,:) =                    &
                                        ZWORK3D(KIB1:KIE1,KJB1:KJE1,:)

    YRECFM='SIGS'                  ! subgrid condensation
    CALL FMREAD(HSONFILE,YRECFM,CLUOUT,YDIR,ZWORK3D,IGRID,ILENCH,YCOMMENT,IRESP)
    IF(IRESP == 0) PSIGS(KIB2:KIE2,KJB2:KJE2,:) =                    &
                                        ZWORK3D(KIB1:KIE1,KJB1:KJE1,:)
  END IF
  
  IF (LUV_FLX .OR. LTH_FLX) THEN      ! MT adding for ADVFRC
     WRITE(ILUOUT,FMT=*) '****************************** WARNING ****************************'
     WRITE(ILUOUT,FMT=*) 'SPAWN_FIELD2: spawning with a SON input file not forseen for EDDY_FLUX'
     WRITE(ILUOUT,FMT=*) '              Do like the lecture in read_field.f90 if necessary'
     WRITE(ILUOUT,FMT=*) '****************************** WARNING ****************************'
  ENDIF

END IF
!
!*       2.2.4  secondary prognostic variables correction
!
IF (CONF_MODEL(1)%NRR > 1 .AND. HTURB /= 'NONE')  PSRCM(:,:,:) = MIN( 1.0, MAX( 0.0, PSRCM(:,:,:)) )
IF (CONF_MODEL(1)%NRR > 1 .AND. HTURB /= 'NONE')  PSRCT(:,:,:) = MIN( 1.0, MAX( 0.0, PSRCT(:,:,:)) )
!
IF ( CONF_MODEL(1)%NRR == 0 ) THEN
  PHUM (:,:,:)= 0.
  PHUT (:,:,:)= 0.
END IF
!-------------------------------------------------------------------------------
!
CALL GOTO_MODEL(IMI)
CONTAINS 
!      
      SUBROUTINE COMPUTE_THV_HU(OUSERV,PR,PTH,PPABS,PTHV,PHU)
!
IMPLICIT NONE
!
!*       0.1   Declarations of dummy arguments :
!
LOGICAL, INTENT(IN)   :: OUSERV
REAL, DIMENSION(:,:,:),   INTENT(IN)   :: PTH,PPABS
REAL, DIMENSION(:,:,:,:), INTENT(IN)   :: PR
REAL, DIMENSION(:,:,:),   INTENT(OUT)  :: PTHV,PHU
!
!*       0.2    Declarations of local variables 
!
REAL, DIMENSION(SIZE(PR,1),SIZE(PR,2),SIZE(PR,3)) :: ZSUMR ! sum of water ratios
!
IF (OUSERV) THEN
  ZSUMR(:,:,:) = 0.
  IRR=SIZE(PR,4)
  DO JRR=1,IRR
    ZSUMR(:,:,:) = ZSUMR(:,:,:) + PR(:,:,:,JRR)
  END DO
  PTHV(:,:,:)=PTH(:,:,:)*(1.+XRV/XRD*PR(:,:,:,1))/(1.+ZSUMR(:,:,:))
  PHU (:,:,:)=100.*PPABS(:,:,:)/(XRD/XRV/MAX(PR(:,:,:,1),1.E-16)+1.) &
               /SM_FOES(PTH(:,:,:)*(PPABS(:,:,:)/XP00)**(XRD/XCPD))
ELSE
  PTHV(:,:,:)=PTH(:,:,:)
  PHU (:,:,:)=0.
END IF
!
!
END SUBROUTINE COMPUTE_THV_HU
!
END SUBROUTINE SPAWN_FIELD2