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  • !MNH_LIC Copyright 1994-2014 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.
    
    !-----------------------------------------------------------------
    !--------------- special set of characters for RCS information
    !-----------------------------------------------------------------
    ! $Source$ $Revision$
    !-----------------------------------------------------------------
    !     #############################################################
          SUBROUTINE WRITE_SURFX0_MNH(HREC,PFIELD,KRESP,HCOMMENT)
    !     #############################################################
    !
    !!****  *READX0* - routine to read a real scalar
    !!
    !!    PURPOSE
    !!    -------
    !
    !       The purpose of READX0 is
    !
    !!**  METHOD
    !!    ------
    !!
    !!    EXTERNAL
    !!    --------
    !!
    !!
    !!
    !!    IMPLICIT ARGUMENTS
    !!    ------------------
    !!
    !!
    !!    REFERENCE
    !!    ---------
    !!
    !!
    !!    AUTHOR
    !!    ------
    !!
    !!      S.Malardel      *METEO-FRANCE*
    !!
    !!    MODIFICATIONS
    !!    -------------
    !!
    !!      original                                                     01/08/03
    !!        06/08 P. Peyrille, V. Masson : change test for writing 
    !!                                       YY, XY, DX, DY in 1D or 2D configuration
    !!        03/09, G.Tanguy              : add write_surft1_mnh
    !!                                       replace ZUNDEF(surfex) by XUNDEF(MNH)
    
    !!        J.Escobar : 15/09/2015 : WENO5 & JPHEXT <> 1
    
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    !----------------------------------------------------------------------------
    !
    !*      0.    DECLARATIONS
    !             ------------
    !
    USE MODE_FM
    USE MODE_FMWRIT
    !
    USE MODD_IO_SURF_MNH,        ONLY : COUT, COUTFILE, NLUOUT
    USE MODD_CONF_n,               ONLY : CSTORAGE_TYPE
    !
    IMPLICIT NONE
    !
    !*      0.1   Declarations of arguments
    !
    CHARACTER(LEN=12), INTENT(IN)  :: HREC     ! name of the article to be read
    REAL,              INTENT(IN)  :: PFIELD   ! the real scalar to be read
    INTEGER,           INTENT(OUT) :: KRESP    ! KRESP  : return-code if a problem appears
    CHARACTER(LEN=100),INTENT(IN)  :: HCOMMENT ! Comment string
    !
    !*      0.2   Declarations of local variables
    !
    !-------------------------------------------------------------------------------
    !
    
    IF( ( HREC=='LAT0' .OR. HREC=='LON0' .OR. HREC=='RPK' .OR. HREC=='BETA'  &
                     .OR. HREC=='LATORI'.OR. HREC=='LONORI'                  )&
       .AND. CSTORAGE_TYPE/='PG' .AND. CSTORAGE_TYPE/='SU'                   ) THEN
    
    !    WRITE(NLUOUT,*) ' MESO-NH writing'
    !    WRITE(NLUOUT,*) '-------'
    !    WRITE(NLUOUT,*) ' '
    !    WRITE(NLUOUT,*) 'article ', HREC
    !    WRITE(NLUOUT,*) 'not written in file by externalized surface'
    !    WRITE(NLUOUT,*) ' '
        RETURN
    !
    ELSE
    
      CALL FMWRIT(COUTFILE,HREC,COUT,'--',PFIELD,0,LEN(HCOMMENT),HCOMMENT,KRESP)
    
      IF (KRESP /=0) THEN
    !
        WRITE(NLUOUT,*) ' '
        WRITE(NLUOUT,*) 'WARNING'
        WRITE(NLUOUT,*) '-------'
        WRITE(NLUOUT,*) ' '
        WRITE(NLUOUT,*) 'error when writing article', HREC,'KRESP=',KRESP
        WRITE(NLUOUT,*) ' '
     !callabortstop
        CALL ABORT
        STOP
    
      END IF
    END IF
    
    !-------------------------------------------------------------------------------
    END SUBROUTINE WRITE_SURFX0_MNH
    !
    !     #############################################################
          SUBROUTINE WRITE_SURFX1_MNH(HREC,KL,PFIELD,KRESP,HCOMMENT,HDIR)
    !     #############################################################
    !
    !!****  *READX1* - routine to fill a real 1D array for the externalised surface
    !!
    !!    PURPOSE
    !!    -------
    !
    !       The purpose of WRITE_SURFX1 is
    !
    !!**  METHOD
    !!    ------
    !!
    !!    EXTERNAL
    !!    --------
    !!
    !!
    !!
    !!    IMPLICIT ARGUMENTS
    !!    ------------------
    !!
    !!
    !!    REFERENCE
    !!    ---------
    !!
    !!
    !!    AUTHOR
    !!    ------
    !!
    !!      S.Malardel      *METEO-FRANCE*
    !!
    !!    MODIFICATIONS
    !!    -------------
    !!
    !!      original                                                     01/08/03
    !----------------------------------------------------------------------------
    !
    !*      0.    DECLARATIONS
    !             ------------
    !
    USE MODE_FM
    USE MODE_FMWRIT
    USE MODE_ll
    USE MODE_IO_ll
    !
    USE MODD_PARAMETERS,  ONLY : XUNDEF, JPHEXT
    USE MODD_CONF_n,        ONLY : CSTORAGE_TYPE
    !
    USE MODD_IO_SURF_MNH, ONLY :COUT, COUTFILE , NLUOUT, NMASK, CMASK, &
                                NIU, NJU, NIB, NJB, NIE, NJE,          &
                                NIU_ALL, NJU_ALL, NIB_ALL, NJB_ALL,    &
                                NIE_ALL, NJE_ALL, NMASK_ALL, NHALO
    
    USE MODI_UNPACK_1D_2D
    !
    USE MODI_GET_SURF_UNDEF
    !
    IMPLICIT NONE
    !
    !*      0.1   Declarations of arguments
    !
    CHARACTER(LEN=12),   INTENT(IN)  :: HREC     ! name of the article to be read
    INTEGER,             INTENT(IN)  :: KL       ! number of points
    REAL, DIMENSION(KL), INTENT(IN)  :: PFIELD   ! array containing the data field
    INTEGER,             INTENT(OUT) :: KRESP    ! KRESP  : return-code if a problem appears
    CHARACTER(LEN=100),  INTENT(IN)  :: HCOMMENT ! Comment string
    CHARACTER(LEN=1),    INTENT(IN)  :: HDIR     ! type of field :
    !                                            ! 'H' : field with
    !                                            !       horizontal spatial dim.
    !                                            ! 'A' : entire field with
    !                                            !       horizontal spatial dim. :
    !                                            !       It is not distributed on
    !                                            !       the processors
    !                                            ! '-' : no horizontal dim.
    !
    !*      0.2   Declarations of local variables
    !
    INTEGER           :: IGRID          ! IGRID : grid indicator
    INTEGER           :: J1D            ! loop counter
    INTEGER           :: I1D            ! 1D array size
    INTEGER           :: JILOOP,JJLOOP  ! loop indexes
    
    REAL, DIMENSION(:,:), ALLOCATABLE :: ZWORK  ! work array read in the file
    REAL, DIMENSION(:),   ALLOCATABLE :: ZW1D   ! 1D work array
    !
    INTEGER           :: IIU, IJU, IIB, IJB, IIE, IJE ! dimensions of horizontal fields
    INTEGER, DIMENSION(:), ALLOCATABLE :: IMASK       ! mask for unpacking
    REAL              :: ZUNDEF         ! undefined value in SURFEX
    
    !-------------------------------------------------------------------------------
    !
    !*       1.    Special cases with no writing
    !        -----------------------------------
    !
    IF(        HREC=='LAT'                                  &
          .OR. HREC=='LON'                                  &
          .OR. HREC=='MESH_SIZE'                            &
          .OR. HREC=='DX'                                   &
          .OR. HREC=='DY'                                   ) THEN
    
    !    WRITE(NLUOUT,*) ' MESO-NH writing'
    !    WRITE(NLUOUT,*) '-------'
    !    WRITE(NLUOUT,*) ' '
    !    WRITE(NLUOUT,*) 'article ', HREC,'  with mask ', CMASK
    !    WRITE(NLUOUT,*) 'not written in file by externalized surface'
    !    WRITE(NLUOUT,*) ' '
        RETURN
    !
    ELSE IF( (   (CSTORAGE_TYPE/='PG' .AND. CSTORAGE_TYPE/='SU') &
                  .OR. CMASK/='FULL  ')                          &
              .AND. ( HREC=='ZS' .OR. HREC=='XX' .OR. HREC=='YY') ) THEN
    
    !    WRITE(NLUOUT,*) ' MESO-NH writing'
    !    WRITE(NLUOUT,*) '-------'
    !    WRITE(NLUOUT,*) ' '
    !    WRITE(NLUOUT,*) 'article ', HREC,'  with mask ', CMASK
    !    WRITE(NLUOUT,*) 'not written in file by externalized surface'
    !    WRITE(NLUOUT,*) ' '
        RETURN
    !
    END IF
    !
    !*       2.    Ecriture
    !        --------------
    !
    !
    IF (HDIR=='A') THEN
      IIU = NIU_ALL
      IJU = NJU_ALL
      IIB = NIB_ALL
      IJB = NJB_ALL
      IIE = NIE_ALL
      IJE = NJE_ALL
      ALLOCATE(IMASK(SIZE(NMASK_ALL)))
      IMASK = NMASK_ALL
    ELSE
      IIU = NIU+2*NHALO
      IJU = NJU+2*NHALO
      IIB = NIB
      IJB = NJB
      IIE = NIE+2*NHALO
      IJE = NJE+2*NHALO
      ALLOCATE(IMASK(SIZE(NMASK)))
      IMASK = NMASK
    END IF
    !
    ALLOCATE(ZWORK(IIU,IJU))
    ZWORK(:,:) = XUNDEF
    !
    IF (HDIR=='H' .OR. HDIR=='A') THEN
      CALL UNPACK_1D_2D(IMASK,PFIELD,ZWORK(IIB:IIE,IJB:IJE))
      IF ( HREC=='ZS' ) THEN
        IF (LWEST_ll())  THEN
          DO JILOOP = 1,JPHEXT
            ZWORK(JILOOP,:) = ZWORK(IIB,:)
          END DO
        END IF
        IF (LEAST_ll()) THEN
          DO JILOOP = IIU-JPHEXT+1,IIU
            ZWORK(JILOOP,:)=ZWORK(IIU-JPHEXT,:)
          END DO
        END IF
        IF (LSOUTH_ll()) THEN
          DO JJLOOP = 1,JPHEXT
            ZWORK(:,JJLOOP)=ZWORK(:,IJB)
          END DO
        END IF
        IF (LNORTH_ll()) THEN
          DO JJLOOP =IJU-JPHEXT+1,IJU
            ZWORK(:,JJLOOP)=ZWORK(:,IJU-JPHEXT)
          END DO
        END IF
      END IF
    END IF
    
    IGRID=4
    
     CALL GET_SURF_UNDEF(ZUNDEF)
     WHERE (ZWORK==ZUNDEF) ZWORK=XUNDEF
    !
    !! Add cases in 2D (IJB=IJE) and 1D (IJB=IJE and IIB=IIE) 
    !! to write the correct mesh
    IF (      (CSTORAGE_TYPE=='PG' .OR. CSTORAGE_TYPE=='SU')  &
        .AND. CMASK=='FULL  ' .AND. (HREC=='XX' .OR. HREC=='DX') ) THEN
      ALLOCATE(ZW1D(IIU))
      IF (IIB<IIE .AND. HREC=='XX') THEN
        ZW1D(IIB+1:IIE) = 0.5 * ZWORK(IIB:IIE-1,1+JPHEXT) + 0.5 * ZWORK(IIB+1:IIE,1+JPHEXT)
        ZW1D(IIB)       = 1.5 * ZWORK(IIB      ,1+JPHEXT) - 0.5 * ZWORK(IIB+1    ,1+JPHEXT)
        DO J1D=JPHEXT,1,-1
          ZW1D(      J1D) = 2. * ZW1D(J1D+1)   - ZW1D(J1D+2)
          ZW1D(IIU+1-J1D) = 2. * ZW1D(IIU-J1D) - ZW1D(IIU-J1D-1)
        END DO
      ELSE IF (IIB==IIE .AND. HREC=='DX') THEN
        ZW1D(IIB-1) = - 0.5 * ZWORK(IIB,1+JPHEXT)
        ZW1D(IIB)   =   0.5 * ZWORK(IIB,1+JPHEXT)
        ZW1D(IIB+1) =   1.5 * ZWORK(IIB,1+JPHEXT)
      END IF
    !
      IF (HDIR=='A') &
      CALL FMWRIT(COUTFILE,'XHAT',COUT,'--', ZW1D(:),4,LEN(HCOMMENT),HCOMMENT,KRESP)
      IF (HDIR=='H') &
      CALL FMWRIT(COUTFILE,'XHAT',COUT,'XX', ZW1D(1+NHALO:IIU-NHALO),4,LEN(HCOMMENT),HCOMMENT,KRESP)
      DEALLOCATE(ZW1D)
    ELSE IF ( (CSTORAGE_TYPE=='PG' .OR. CSTORAGE_TYPE=='SU')  &
             .AND. CMASK=='FULL  ' .AND. (HREC=='YY' .OR. HREC=='DY') ) THEN
      ALLOCATE(ZW1D(IJU))
      IF (IJB<IJE .AND. HREC=='YY') THEN
        ZW1D(IJB+1:IJE) = 0.5 * ZWORK(1+JPHEXT,IJB:IJE-1) + 0.5 * ZWORK(1+JPHEXT,IJB+1:IJE)
        ZW1D(IJB)       = 1.5 * ZWORK(1+JPHEXT,IJB      ) - 0.5 * ZWORK(1+JPHEXT,IJB+1    )
        DO J1D=JPHEXT,1,-1
          ZW1D(      J1D) = 2. * ZW1D(J1D+1)   - ZW1D(J1D+2)
          ZW1D(IJU+1-J1D) = 2. * ZW1D(IJU-J1D) - ZW1D(IJU-J1D-1)
        END DO
      ELSE IF (IJB==IJE .AND. (HREC=='DY' .OR. HREC=='YY')) THEN
        ZW1D(IJB-1) = - 0.5 * ZWORK(1+JPHEXT,IJB)
        ZW1D(IJB)   =   0.5 * ZWORK(1+JPHEXT,IJB)
        ZW1D(IJB+1) =   1.5 * ZWORK(1+JPHEXT,IJB)
      END IF
      IF (HDIR=='A') &
      CALL FMWRIT(COUTFILE,'YHAT',COUT,'--', ZW1D(:),4,LEN(HCOMMENT),HCOMMENT,KRESP)
      IF (HDIR=='H') &
      CALL FMWRIT(COUTFILE,'YHAT',COUT,'YY', ZW1D(1+NHALO:IJU-NHALO),4,LEN(HCOMMENT),HCOMMENT,KRESP)
      DEALLOCATE(ZW1D)
    ELSE IF (HDIR=='H') THEN
      CALL FMWRIT(COUTFILE,HREC,COUT,'XY', ZWORK(1+NHALO:IIU-NHALO,1+NHALO:IJU-NHALO),IGRID,LEN(HCOMMENT),HCOMMENT,KRESP)
    ELSE IF (HDIR=='A') THEN
      CALL FMWRIT(COUTFILE,HREC,COUT,'--', ZWORK(:,:),IGRID,LEN(HCOMMENT),HCOMMENT,KRESP)
    ELSE
      CALL FMWRIT(COUTFILE,HREC,COUT,'--', PFIELD(:),IGRID,LEN(HCOMMENT),HCOMMENT,KRESP)
    END IF
    !
    
     IF (KRESP /=0) THEN
    !
        WRITE(NLUOUT,*) ' '
        WRITE(NLUOUT,*) 'WARNING'
        WRITE(NLUOUT,*) '-------'
        WRITE(NLUOUT,*) ' '
        WRITE(NLUOUT,*) 'error when writing article', HREC,'KRESP=',KRESP
        WRITE(NLUOUT,*) ' '
        CALL ABORT
        stop
    
     END IF
    !
    DEALLOCATE(ZWORK)
    DEALLOCATE(IMASK)
    !
    !-------------------------------------------------------------------------------
    END SUBROUTINE WRITE_SURFX1_MNH
    !
    !     #############################################################
          SUBROUTINE WRITE_SURFX2COV_MNH(HREC,KL1,KL2,PFIELD,OFLAG,KRESP,HCOMMENT,HDIR)
    !     #############################################################
    !
    !!****  *READX1* - routine to fill a real 1D array for the externalised surface
    !!
    !!    PURPOSE
    !!    -------
    !
    !       The purpose of WRITE_SURFX1 is
    !
    !!**  METHOD
    !!    ------
    !!
    !!    EXTERNAL
    !!    --------
    !!
    !!
    !!
    !!    IMPLICIT ARGUMENTS
    !!    ------------------
    !!
    !!
    !!    REFERENCE
    !!    ---------
    !!
    !!
    !!    AUTHOR
    !!    ------
    !!
    !!      S.Malardel      *METEO-FRANCE*
    !!
    !!    MODIFICATIONS
    !!    -------------
    !!
    !!      original                                                     01/08/03
    !----------------------------------------------------------------------------
    !
    !*      0.    DECLARATIONS
    !             ------------
    !
    USE MODE_FM
    USE MODE_FMWRIT
    USE MODE_ll
    USE MODE_IO_ll
    !
    USE MODD_PARAMETERS,  ONLY : XUNDEF, JPHEXT
    USE MODD_CONF_n,        ONLY : CSTORAGE_TYPE
    USE MODD_CONFZ ,        ONLY : NB_PROCIO_W
    !
    USE MODD_IO_SURF_MNH, ONLY :COUT, COUTFILE , NLUOUT, NMASK, CMASK, &
                                NIU, NJU, NIB, NJB, NIE, NJE,          &
                                NIU_ALL, NJU_ALL, NIB_ALL, NJB_ALL,    &
                                NIE_ALL, NJE_ALL, NMASK_ALL, NHALO
    
    USE MODI_UNPACK_1D_2D
    !
    IMPLICIT NONE
    !
    !*      0.1   Declarations of arguments
    !
    CHARACTER(LEN=12),   INTENT(IN)  :: HREC     ! name of the article to be read
    INTEGER,             INTENT(IN)  :: KL1,KL2       ! number of points
    REAL, DIMENSION(KL1,KL2), INTENT(IN)  :: PFIELD   ! array containing the data field
    LOGICAL,DIMENSION(KL2),   INTENT(IN)  ::OFLAG  ! mask for array filling
    INTEGER,             INTENT(OUT) :: KRESP    ! KRESP  : return-code if a problem appears
    CHARACTER(LEN=100),  INTENT(IN)  :: HCOMMENT ! Comment string
    CHARACTER(LEN=1),    INTENT(IN)  :: HDIR     ! type of field :
    !                                            ! 'H' : field with
    !                                            !       horizontal spatial dim.
    !                                            ! 'A' : entire field with
    !                                            !       horizontal spatial dim. :
    !                                            !       It is not distributed on
    !                                            !       the processors
    !                                            ! '-' : no horizontal dim.
    !
    !*      0.2   Declarations of local variables
    !
    INTEGER           :: IGRID          ! IGRID : grid indicator
    INTEGER           :: J1D            ! loop counter
    INTEGER           :: I1D            ! 1D array size
    INTEGER           :: JILOOP,JJLOOP  ! loop indexes
    
    REAL, DIMENSION(:,:), ALLOCATABLE :: ZWORK  ! work array read in the file
    REAL, DIMENSION(:),   ALLOCATABLE :: ZW1D   ! 1D work array
    !
    INTEGER           :: IIU, IJU, IIB, IJB, IIE, IJE ! dimensions of horizontal fields
    INTEGER, DIMENSION(:), ALLOCATABLE :: IMASK       ! mask for unpacking
    !
    CHARACTER(LEN=16) :: YREC
    CHARACTER(LEN=100):: YCOMMENT
    !JUANZ
    INTEGER           :: NCOVER,ICOVER,IKL2, JL2
    REAL,DIMENSION(:,:,:), ALLOCATABLE :: ZWORK3D
    !JUANZ
    CHARACTER(LEN=2)  :: YDIR
    LOGICAL           :: GCOVER_PACKED   ! .T. if cover fields are all packed together
    !-------------------------------------------------------------------------------
    !
    !*       2.    Ecriture
    !        --------------
    !
    IF (CMASK/='FULL') RETURN
    !
    IF (HDIR=='A') THEN
      YDIR='--'
      IIU = NIU_ALL
      IJU = NJU_ALL
      IIB = NIB_ALL
      IJB = NJB_ALL
      IIE = NIE_ALL
      IJE = NJE_ALL
      ALLOCATE(IMASK(SIZE(NMASK_ALL)))
      IMASK = NMASK_ALL
    ELSE
      YDIR='XY'
      IIU = NIU+2*NHALO
      IJU = NJU+2*NHALO
      IIB = NIB
      IJB = NJB
      IIE = NIE+2*NHALO
      IJE = NJE+2*NHALO
      ALLOCATE(IMASK(SIZE(NMASK)))
      IMASK = NMASK
    END IF
    !
    GCOVER_PACKED = ( NB_PROCIO_W /= 1 )
    IGRID=0
    YREC='COVER_PACKED'
    YCOMMENT=''
    CALL FMWRIT(COUTFILE,YREC,COUT,'--',GCOVER_PACKED,IGRID,LEN(YCOMMENT),YCOMMENT,KRESP)
    !
    ALLOCATE(ZWORK(IIU,IJU))
    ZWORK(:,:) = XUNDEF
    NCOVER=COUNT(OFLAG)
    ALLOCATE(ZWORK3D(IIU,IJU,NCOVER))
    ZWORK3D = XUNDEF
    !
    ICOVER=0
    DO IKL2=1,KL2
      IF (OFLAG(IKL2)) THEN
        ICOVER=ICOVER+1   
        CALL UNPACK_1D_2D(IMASK,PFIELD(:,IKL2),ZWORK3D(IIB:IIE,IJB:IJE,ICOVER))
      END IF
    END DO
    
    IGRID=4
    
    IF (.NOT. GCOVER_PACKED) THEN
      ICOVER=0
      DO JL2=1,KL2
        WRITE(YREC,'(A5,I3.3)') 'COVER',JL2
        IF (OFLAG(JL2)) THEN
          ICOVER=ICOVER+1
          CALL FMWRIT(COUTFILE,YREC,COUT,YDIR, ZWORK3D(1+NHALO:IIU-NHALO,1+NHALO:IJU-NHALO,ICOVER),IGRID,LEN(HCOMMENT),HCOMMENT,KRESP)
        END IF
      END DO
    ELSE 
      CALL FMWRIT(COUTFILE,HREC,COUT,YDIR, ZWORK3D(1+NHALO:IIU-NHALO,1+NHALO:IJU-NHALO,:),IGRID,LEN(HCOMMENT),HCOMMENT,KRESP)
    END IF
    !
    DEALLOCATE(ZWORK3D)
    
     IF (KRESP /=0) THEN
    !
        WRITE(NLUOUT,*) ' '
        WRITE(NLUOUT,*) 'WARNING'
        WRITE(NLUOUT,*) '-------'
        WRITE(NLUOUT,*) ' '
        WRITE(NLUOUT,*) 'error when writing article', HREC,'KRESP=',KRESP
        WRITE(NLUOUT,*) ' '
        stop
    
     END IF
    !
    DEALLOCATE(ZWORK)
    DEALLOCATE(IMASK)
    !
    !-------------------------------------------------------------------------------
    END SUBROUTINE WRITE_SURFX2COV_MNH
    !
    !     #############################################################
          SUBROUTINE WRITE_SURFX2_MNH(HREC,KL1,KL2,PFIELD,KRESP,HCOMMENT,HDIR)
    !     #############################################################
    !
    !!****  *READX2* - routine to fill a real 2D array for the externalised surface
    !!
    !!    PURPOSE
    !!    -------
    !
    !       The purpose of WRITE_SURFX2 is
    !
    !!**  METHOD
    !!    ------
    !!
    !!    EXTERNAL
    !!    --------
    !!
    !!
    !!
    !!    IMPLICIT ARGUMENTS
    !!    ------------------
    !!
    !!
    !!    REFERENCE
    !!    ---------
    !!
    !!
    !!    AUTHOR
    !!    ------
    !!
    !!      S.Malardel      *METEO-FRANCE*
    !!
    !!    MODIFICATIONS
    !!    -------------
    !!
    !!      original                                                     01/08/03
    !!      G.TANGUY 03/2009   add replace ZUNDEF(surfex) by XUNDEF(MNH)
    !----------------------------------------------------------------------------
    !
    !*      0.    DECLARATIONS
    !             ------------
    !
    USE MODE_FM
    USE MODE_FMWRIT
    USE MODE_ll
    USE MODE_IO_ll
    !
    USE MODD_PARAMETERS,     ONLY : XUNDEF
    !
    USE MODD_IO_SURF_MNH, ONLY :COUT, COUTFILE , NLUOUT, NMASK,        &
                                NIU, NJU, NIB, NJB, NIE, NJE,          &
                                NIU_ALL, NJU_ALL, NIB_ALL, NJB_ALL,    &
                                NIE_ALL, NJE_ALL, NMASK_ALL, NHALO
    !
    !
    USE MODI_UNPACK_1D_2D
    !
    USE MODI_GET_SURF_UNDEF
    !
    IMPLICIT NONE
    !
    !*      0.1   Declarations of arguments
    !
    CHARACTER(LEN=12),        INTENT(IN)  :: HREC     ! name of the article to be read
    INTEGER,                  INTENT(IN)  :: KL1      ! number of points
    INTEGER,                  INTENT(IN)  :: KL2      ! 2nd dimension
    REAL, DIMENSION(KL1,KL2), INTENT(IN)  :: PFIELD   ! array containing the data field
    INTEGER,                  INTENT(OUT) :: KRESP    ! KRESP  : return-code if a problem appears
    CHARACTER(LEN=100),       INTENT(IN)  :: HCOMMENT ! Comment string
    CHARACTER(LEN=1),         INTENT(IN)  :: HDIR     ! type of field :
    !                                                 ! 'H' : field with
    !                                                 !       horizontal spatial dim.
    !                                                 ! 'A' : entire field with
    !                                                 !       horizontal spatial dim. :
    !                                                 !       It is not distributed on
    !                                                 !       the processors
    !                                                 ! '-' : no horizontal dim.
    !
    !*      0.2   Declarations of local variables
    !
    INTEGER           :: IGRID          ! IGRID : grid indicator
    
    REAL, DIMENSION(:,:,:), ALLOCATABLE :: ZWORK  ! work array read in the file
    REAL, DIMENSION(:,:), ALLOCATABLE :: ZFIELD  ! work array read in the file
    INTEGER, DIMENSION(:), ALLOCATABLE :: IMASK       ! mask for unpacking
    REAL              :: ZUNDEF         ! undefined value in SURFEX
    
    INTEGER           :: IIU, IJU, IIB, IJB, IIE, IJE ! dimensions of horizontal fields
    !-------------------------------------------------------------------------------
    !
    IF (HDIR=='A') THEN
      IIU = NIU_ALL
      IJU = NJU_ALL
      IIB = NIB_ALL
      IJB = NJB_ALL
      IIE = NIE_ALL
      IJE = NJE_ALL
      ALLOCATE(IMASK(SIZE(NMASK_ALL)))
      IMASK = NMASK_ALL
    ELSE
      IIU = NIU+2*NHALO
      IJU = NJU+2*NHALO
      IIB = NIB
      IJB = NJB
      IIE = NIE+2*NHALO
      IJE = NJE+2*NHALO
      ALLOCATE(IMASK(SIZE(NMASK)))
      IMASK = NMASK
    END IF
    !
    IGRID=4
    CALL GET_SURF_UNDEF(ZUNDEF)
    
    IF (HDIR=='H' .OR. HDIR=='A') THEN
      ALLOCATE(ZWORK(IIU,IJU,SIZE(PFIELD,2)))
      ZWORK(:,:,:) = XUNDEF
      CALL UNPACK_1D_2D(NMASK,PFIELD(:,:),ZWORK(IIB:IIE,IJB:IJE,:))
      WHERE (ZWORK==ZUNDEF) ZWORK=XUNDEF
    
      IF (HDIR=='H') &
      CALL FMWRIT(COUTFILE,HREC,COUT,'XY', ZWORK(1+NHALO:IIU-NHALO,1+NHALO:IJU-NHALO,:),IGRID,LEN(HCOMMENT),HCOMMENT,KRESP)
      IF (HDIR=='A') &
      CALL FMWRIT(COUTFILE,HREC,COUT,'--', ZWORK(:,:,:),IGRID,LEN(HCOMMENT),HCOMMENT,KRESP)
    
      DEALLOCATE(ZWORK)
      DEALLOCATE(IMASK)
    ELSE IF (HDIR=='-') THEN
      ALLOCATE(ZFIELD(KL1,KL2))
      ZFIELD=PFIELD
      WHERE (ZFIELD==ZUNDEF) ZFIELD=XUNDEF
      CALL FMWRIT(COUTFILE,HREC,COUT,'--', ZFIELD(:,:),IGRID,LEN(HCOMMENT),HCOMMENT,KRESP)
      DEALLOCATE(ZFIELD)
    END IF
    !
    !
    IF (KRESP /=0) THEN
    !
        WRITE(NLUOUT,*) ' '
        WRITE(NLUOUT,*) 'WARNING'
        WRITE(NLUOUT,*) '-------'
        WRITE(NLUOUT,*) ' '
        WRITE(NLUOUT,*) 'error when writing article', HREC,'KRESP=',KRESP
        WRITE(NLUOUT,*) ' '
        CALL ABORT
        STOP
    
     END IF
    !
    !
    !-------------------------------------------------------------------------------
    END SUBROUTINE WRITE_SURFX2_MNH
    !
    !     #############################################################
          SUBROUTINE WRITE_SURFN0_MNH(HREC,KFIELD,KRESP,HCOMMENT)
    !     #############################################################
    !
    !!****  *READN0* - routine to read an integer
    !!
    !!    PURPOSE
    !!    -------
    !
    !       The purpose of READN0 is
    !
    !!**  METHOD
    !!    ------
    !!
    !!    EXTERNAL
    !!    --------
    !!
    !!
    !!
    !!    IMPLICIT ARGUMENTS
    !!    ------------------
    !!
    !!
    !!    REFERENCE
    !!    ---------
    !!
    !!
    !!    AUTHOR
    !!    ------
    !!
    !!      S.Malardel      *METEO-FRANCE*
    !!
    !!    MODIFICATIONS
    !!    -------------
    !!
    !!      original                                                     01/08/03
    !----------------------------------------------------------------------------
    !
    !*      0.    DECLARATIONS
    !             ------------
    !
    USE MODE_FM
    USE MODE_FMWRIT
    USE MODE_ll
    USE MODE_IO_ll
    !
    !
    USE MODD_PARAMETERS,     ONLY : XUNDEF
    !
    USE MODD_IO_SURF_MNH,    ONLY : COUT, COUTFILE, NLUOUT, NIU_ALL, NJU_ALL
    USE MODD_CONF_n,           ONLY : CSTORAGE_TYPE
    !
    !
    USE MODI_UNPACK_1D_2D
    !
    
    USE MODD_PARAMETERS, ONLY : JPHEXT
    !
    
    IMPLICIT NONE
    !
    !*      0.1   Declarations of arguments
    !
    CHARACTER(LEN=12),   INTENT(IN)  :: HREC     ! name of the article to be read
    INTEGER,             INTENT(IN)  :: KFIELD   ! the integer to be read
    INTEGER,             INTENT(OUT) :: KRESP    ! KRESP  : return-code if a problem appears
    CHARACTER(LEN=100),  INTENT(IN)  :: HCOMMENT ! Comment string
    !
    !*      0.2   Declarations of local variables
    !
    INTEGER :: IFIELD
    !-------------------------------------------------------------------------------
    !
    IF( (HREC=='IMAX' .OR. HREC=='JMAX' .OR. HREC=='KMAX') .AND.  &
         CSTORAGE_TYPE/='PG' .AND. CSTORAGE_TYPE/='SU'            ) THEN
    
    
    !    WRITE(NLUOUT,*) ' MESO-NH writing'
    !    WRITE(NLUOUT,*) '-------'
    !    WRITE(NLUOUT,*) ' '
    !    WRITE(NLUOUT,*) 'article ', HREC
    !    WRITE(NLUOUT,*) 'not written in file by externalized surface'
    !    WRITE(NLUOUT,*) ' '
        RETURN
    !
    ELSE
      IFIELD = KFIELD
    
      IF (HREC=='IMAX') IFIELD = NIU_ALL-2*JPHEXT
      IF (HREC=='JMAX') IFIELD = NJU_ALL-2*JPHEXT
    
      CALL FMWRIT(COUTFILE,HREC,COUT,'--',IFIELD,0,LEN(HCOMMENT),HCOMMENT,KRESP)
    
      IF (KRESP /=0) THEN
    !
        WRITE(NLUOUT,*) ' '
        WRITE(NLUOUT,*) 'WARNING'
        WRITE(NLUOUT,*) '-------'
        WRITE(NLUOUT,*) ' '
        WRITE(NLUOUT,*) 'error when writing article', HREC,'KRESP=',KRESP
        WRITE(NLUOUT,*) ' '
        CALL ABORT
        STOP
    
      END IF
     END IF
    
    !-------------------------------------------------------------------------------
    END SUBROUTINE WRITE_SURFN0_MNH
    !
    !     #############################################################
          SUBROUTINE WRITE_SURFN1_MNH(HREC,KL,KFIELD,KRESP,HCOMMENT,HDIR)
    !     #############################################################
    !
    !!****  *READN0* - routine to read an integer
    !!
    !!    PURPOSE
    !!    -------
    !
    !       The purpose of READN0 is
    !
    !!**  METHOD
    !!    ------
    !!
    !!    EXTERNAL
    !!    --------
    !!
    !!
    !!
    !!    IMPLICIT ARGUMENTS
    !!    ------------------
    !!
    !!
    !!    REFERENCE
    !!    ---------
    !!
    !!
    !!    AUTHOR
    !!    ------
    !!
    !!      S.Malardel      *METEO-FRANCE*
    !!
    !!    MODIFICATIONS
    !!    -------------
    !!
    !!      original                                                     01/08/03
    !----------------------------------------------------------------------------
    !
    !*      0.    DECLARATIONS
    !             ------------
    !
    USE MODE_FM
    USE MODE_FMWRIT
    USE MODE_ll
    USE MODE_IO_ll
    !
    !
    USE MODD_PARAMETERS,  ONLY : NUNDEF
    !
    USE MODD_IO_SURF_MNH, ONLY :COUT, COUTFILE , NLUOUT, NMASK, CMASK, &
                                NIU, NJU, NIB, NJB, NIE, NJE
    !
    !
    USE MODI_UNPACK_1D_2D
    !
    IMPLICIT NONE
    !
    !*      0.1   Declarations of arguments
    !
    CHARACTER(LEN=12),      INTENT(IN)  :: HREC     ! name of the article to be read
    INTEGER,                INTENT(IN)  :: KL       ! number of points
    INTEGER, DIMENSION(KL), INTENT(IN)  :: KFIELD   ! the integer to be read
    INTEGER,                INTENT(OUT) :: KRESP    ! KRESP  : return-code if a problem appears
    CHARACTER(LEN=100),     INTENT(IN)  :: HCOMMENT ! Comment string
    CHARACTER(LEN=1),       INTENT(IN)  :: HDIR     ! type of field :
    !                                               ! 'H' : field with
    !                                               !       horizontal spatial dim.
    !                                               ! '-' : no horizontal dim.
    !
    !*      0.2   Declarations of local variables
    !
    
    INTEGER, DIMENSION(:,:), ALLOCATABLE :: IWORK  ! work array written in the file
    !
    !-------------------------------------------------------------------------------
    !
    IF (HDIR=='-') THEN
    !
     CALL FMWRIT(COUTFILE,HREC,COUT,'--',KFIELD,0,LEN(HCOMMENT),HCOMMENT,KRESP)
    !
    ELSE IF (HDIR=='H') THEN
    
      ALLOCATE(IWORK(NIU,NJU))
      IWORK(:,:) = NUNDEF
      !
      !
      CALL UNPACK_1D_2D(NMASK,KFIELD,IWORK(NIB:NIE,NJB:NJE))
    
      CALL FMWRIT(COUTFILE,HREC,COUT,'XY', IWORK(:,:),4,LEN(HCOMMENT),HCOMMENT,KRESP)
      !
      DEALLOCATE(IWORK)
    
      IF (KRESP /=0) THEN
    !
        WRITE(NLUOUT,*) ' '
        WRITE(NLUOUT,*) 'WARNING'
        WRITE(NLUOUT,*) '-------'
        WRITE(NLUOUT,*) ' '
        WRITE(NLUOUT,*) 'error when writing article', HREC,'KRESP=',KRESP
        WRITE(NLUOUT,*) ' '
        CALL ABORT
        STOP
    
      END IF
    
    END IF
    
    !-------------------------------------------------------------------------------
    END SUBROUTINE WRITE_SURFN1_MNH
    !
    !     #############################################################
          SUBROUTINE WRITE_SURFC0_MNH(HREC,HFIELD,KRESP,HCOMMENT)
    !     #############################################################
    !
    !!****  *READC0* - routine to read an integer
    !!
    !!    PURPOSE
    !!    -------
    !
    !       The purpose of READC0 is
    !
    !!**  METHOD
    !!    ------
    !!
    !!    EXTERNAL
    !!    --------
    !!
    !!
    !!
    !!    IMPLICIT ARGUMENTS
    !!    ------------------
    !!
    !!
    !!    REFERENCE
    !!    ---------
    !!
    !!
    !!    AUTHOR
    !!    ------
    !!
    !!      S.Malardel      *METEO-FRANCE*
    !!
    !!    MODIFICATIONS
    !!    -------------
    !!
    !!      original                                                     01/08/03
    !----------------------------------------------------------------------------
    !
    !*      0.    DECLARATIONS
    !             ------------
    !
    USE MODE_FM
    USE MODE_FMWRIT
    !
    USE MODD_CONF_n,               ONLY : CSTORAGE_TYPE
    USE MODD_IO_SURF_MNH,        ONLY : COUT, COUTFILE, NLUOUT
    !
    !
    IMPLICIT NONE
    !
    !*      0.1   Declarations of arguments
    !
    CHARACTER(LEN=12),  INTENT(IN)  :: HREC     ! name of the article to be read
    CHARACTER(LEN=40),  INTENT(IN)  :: HFIELD   ! the integer to be read
    INTEGER,            INTENT(OUT) :: KRESP    ! KRESP  : return-code if a problem appears
    CHARACTER(LEN=100), INTENT(IN)  :: HCOMMENT ! Comment string
    !
    !*      0.2   Declarations of local variables
    !
    LOGICAL            :: GCARTESIAN
    CHARACTER(LEN=100) :: YCOMMENT
    !-------------------------------------------------------------------------------
    !
    IF ( (CSTORAGE_TYPE=='PG' .OR. CSTORAGE_TYPE=='SU')  &
         .AND. HREC=='GRID_TYPE       '                  ) THEN
      IF (HFIELD(1:10)=='CONF PROJ ') THEN
        GCARTESIAN = .FALSE.
      ELSE IF (HFIELD(1:10)=='CARTESIAN ') THEN
        GCARTESIAN = .TRUE.
      END IF
      YCOMMENT = '(-)'
      CALL FMWRIT(COUTFILE,'CARTESIAN',COUT,'--',GCARTESIAN,0,LEN(YCOMMENT),YCOMMENT,KRESP)
    END IF
    
    CALL FMWRIT(COUTFILE,HREC,COUT,'--',HFIELD,0,LEN(HCOMMENT),HCOMMENT,KRESP)
    
     IF (KRESP /=0) THEN
    !
        WRITE(NLUOUT,*) ' '
        WRITE(NLUOUT,*) 'WARNING'
        WRITE(NLUOUT,*) '-------'
        WRITE(NLUOUT,*) ' '
        WRITE(NLUOUT,*) 'error when writing article', HREC,'KRESP=',KRESP
        WRITE(NLUOUT,*) ' '
        CALL ABORT
        STOP
    
     END IF
    !-------------------------------------------------------------------------------
    END SUBROUTINE WRITE_SURFC0_MNH