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!MNH_LIC Copyright 2006-2019 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.
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!-----------------------------------------------------------------
! ####################
MODULE MODI_ZDIFFUSETUP
! ####################
!
INTERFACE
!
! ######################################################################
SUBROUTINE ZDIFFUSETUP (PZZ,&
PZDIFFU_HALO2)
! ######################################################################
!JUAN
USE MODE_TYPE_ZDIFFU
IMPLICIT NONE
!JUAN
REAL, DIMENSION(:,:,:), INTENT(IN) :: PZZ ! Height
!JUAN
TYPE(TYPE_ZDIFFU_HALO2) :: PZDIFFU_HALO2
!JUAN
END SUBROUTINE ZDIFFUSETUP
!
END INTERFACE
!
END MODULE MODI_ZDIFFUSETUP
!
!
!
! #########################################################################
SUBROUTINE ZDIFFUSETUP (PZZ,&
PZDIFFU_HALO2)
! #########################################################################
!
!!**** *ZDIFFUSETUP* - routine to calculate the interpolation coefficient needed
!! for the truly horizontal diffusion scheme
!!
!! REFERENCE
!! ---------
!!
!! Zngl, G., 2002: An improved method for computing horizontal diffusion in a
!! sigma-coordinate model and its application to simulations
!! over mountainous topography. Mon. Wea. Rev. 130, 1423-1432.
!!
!! AUTHOR
!! ------
!!
!! G. Zngl * University of Munich*
!
! Modifications:
! J. Escobar 07/10/2015: remove print
! P. Wautelet 10/04/2019: replace ABORT and STOP calls by Print_msg
!
!* 0. DECLARATIONS
! ------------
USE MODD_CST
USE MODD_PARAMETERS
USE MODD_CONF
USE MODI_RELAX
USE MODE_ll
USE MODD_VAR_ll, ONLY : NMNH_COMM_WORLD
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USE MODI_SHUMAN
USE MODD_ARGSLIST_ll, ONLY : LIST_ll, HALO2LIST_ll
!
!
!JUAN
USE MODE_TYPE_ZDIFFU
USE MODE_SUM_LL
!JUAN
IMPLICIT NONE
!
!* 0.1 declarations of arguments
!
!
REAL, DIMENSION(:,:,:), INTENT(IN) :: PZZ ! Height
!JUAN
TYPE(TYPE_ZDIFFU_HALO2) :: PZDIFFU_HALO2
!JUAN
! local variables
INTEGER :: IIB_ll,IJB_ll ! Lower bounds of the physical
! global domain in x and y directions
INTEGER :: IIE_ll,IJE_ll ! Upper bounds of the physical
! gloBal domain in x and y directions
! sub-domain:
INTEGER :: IIB,IJB,IKB ! Lower bounds of the physical
! sub-domain in x,y and z directions
INTEGER :: IIE,IJE,IKE ! Upper bounds of the physical
! sub-domain in x,y and z directions
INTEGER :: IIU,IJU,IKU ! domain sizes
INTEGER :: JI,JJ,JK ! Loop indexes
INTEGER :: IIMAX_ll,IJMAX_ll ! Number of points of
! Global physical domain
! in the x and y directions
INTEGER, DIMENSION(:,:), ALLOCATABLE :: IKIP1,IKIP2,IKIM1,IKIM2,IKJP1,IKJP2,IKJM1,IKJM2,IKMAX
REAL, DIMENSION(:,:), ALLOCATABLE :: ZN4HGTI,ZN4HGTJ,ZMDHGTI,ZMDHGTJ
REAL, DIMENSION(:,:,:), ALLOCATABLE :: ZZMASS
REAL SCAL
!JUAN
INTEGER, DIMENSION(:,:), ALLOCATABLE :: IKIP1_HALO2,IKIP2_HALO2,IKIM1_HALO2,IKIM2_HALO2
INTEGER, DIMENSION(:,:), ALLOCATABLE :: IKJP1_HALO2,IKJP2_HALO2,IKJM1_HALO2,IKJM2_HALO2
INTEGER, DIMENSION(:,:), ALLOCATABLE :: IKMAX_HALO2
REAL, DIMENSION(:,:), ALLOCATABLE :: ZN4HGTI_HALO2,ZN4HGTJ_HALO2,ZMDHGTI_HALO2,ZMDHGTJ_HALO2
TYPE(LIST_ll), POINTER :: TZHGTMASS_ll
TYPE(HALO2LIST_ll), POINTER :: TZHGTHALO2_ll
INTEGER :: KZDLB_ll,IERR
!JUAN
INTEGER:: IERROR ! DUMMY VARIABLE FOR ERROR MESSAGES
!
!* 1. COMPUTE THE PHYSICAL SUBDOMAIN BOUNDS
! ---------------------------------------
!
CALL GET_INDICE_ll( IIB,IJB,IIE,IJE)
IKE = SIZE(PZZ,3) - JPVEXT
IKB = 1 + JPVEXT
! Global physical dimensions
CALL GET_GLOBALDIMS_ll ( IIMAX_ll,IJMAX_ll)
IIU = SIZE(PZZ,1)
IJU = SIZE(PZZ,2)
IKU = SIZE(PZZ,3)
!PRINT*,'Interpolation coefficients for truly horizontal diffusion are computed'
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ALLOCATE (ZZMASS(IIU,IJU,IKU))
!JUAN
ALLOCATE (IKIP1_HALO2(IIB-2:IIE+2,IJB-2:IJE+2),IKIP2_HALO2(IIB-2:IIE+2,IJB-2:IJE+2),&
IKIM1_HALO2(IIB-2:IIE+2,IJB-2:IJE+2),IKIM2_HALO2(IIB-2:IIE+2,IJB-2:IJE+2),&
IKJP1_HALO2(IIB-2:IIE+2,IJB-2:IJE+2),IKJP2_HALO2(IIB-2:IIE+2,IJB-2:IJE+2),&
IKJM1_HALO2(IIB-2:IIE+2,IJB-2:IJE+2),IKJM2_HALO2(IIB-2:IIE+2,IJB-2:IJE+2),&
IKMAX_HALO2(IIB-2:IIE+2,IJB-2:IJE+2))
ALLOCATE (ZN4HGTI_HALO2(IIB-2:IIE+2,IJB-2:IJE+2),ZN4HGTJ_HALO2(IIB-2:IIE+2,IJB-2:IJE+2),&
ZMDHGTI_HALO2(IIB-2:IIE+2,IJB-2:IJE+2),ZMDHGTJ_HALO2(IIB-2:IIE+2,IJB-2:IJE+2))
!JUAN
NULLIFY(TZHGTMASS_ll,TZHGTHALO2_ll)
! Compute height field at mass points
ZZMASS = MZF(1,IKU,1,PZZ)
CALL INIT_HALO2_ll(TZHGTHALO2_ll,1,IIU,IJU,IKU)
CALL ADD3DFIELD_ll(TZHGTMASS_ll,ZZMASS)
CALL UPDATE_HALO2_ll(TZHGTMASS_ll,TZHGTHALO2_ll,IERROR)
!JUAN
PZDIFFU_HALO2%XZZ(IIB-2,IJB:IJE,:) = TZHGTHALO2_ll%HALO2%WEST(IJB:IJE,:)
PZDIFFU_HALO2%XZZ(IIE+2,IJB:IJE,:) = TZHGTHALO2_ll%HALO2%EAST(IJB:IJE,:)
PZDIFFU_HALO2%XZZ(IIB:IIE,IJB-2,:) = TZHGTHALO2_ll%HALO2%SOUTH(IIB:IIE,:)
PZDIFFU_HALO2%XZZ(IIB:IIE,IJE+2,:) = TZHGTHALO2_ll%HALO2%NORTH(IIB:IIE,:)
PZDIFFU_HALO2%XZZ(1:IIU,1:IJU,1:IKU) = ZZMASS
!print *,"zdiffu :: IIB-2",IIB-2
!print *,"zdiffu :: IIE+2",IIE+2
!print *,"zdiffu :: IJB-2",IJB-2
!print *,"zdiffu :: IJE+2",IJE+2
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!DO JI=IIB-2,IIE+2
!print *,"zdiffu :: PZDIFFU_HALO2%X=JI=",JI,(PZDIFFU_HALO2%XZZ(JI,JJ,2),JJ=IJB-2,IJE+2)
!ENDDO
! Compute the vertical index of the remote grid points having the same height as the local
! grid point. This index is a real number composed of the index of the lower neighbouring model
! level and the weighting coefficient needed for the linear vertical interpolation between the
! model levels.
!JUAN
!JUAN
!JUAN
IKIP1_HALO2 = IKB
IKIP2_HALO2 = IKB
IKIM1_HALO2 = IKB
IKIM2_HALO2 = IKB
IKJP1_HALO2 = IKB
IKJP2_HALO2 = IKB
IKJM1_HALO2 = IKB
IKJM2_HALO2 = IKB
PZDIFFU_HALO2%XRKIP1 = IKB
PZDIFFU_HALO2%XRKIP2 = IKB
PZDIFFU_HALO2%XRKIM1 = IKB
PZDIFFU_HALO2%XRKIM2 = IKB
PZDIFFU_HALO2%XRKJP1 = IKB
PZDIFFU_HALO2%XRKJP2 = IKB
PZDIFFU_HALO2%XRKJM1 = IKB
PZDIFFU_HALO2%XRKJM2 = IKB
PZDIFFU_HALO2%XREDFACI = 1.0
PZDIFFU_HALO2%XREDFACJ = 1.0
CALL INDINT_HALO2( 1, 0,PZDIFFU_HALO2%XZZ,PZDIFFU_HALO2%XRKIP1,IKIP1_HALO2,IIB,IJB)
CALL INDINT_HALO2( 2, 0,PZDIFFU_HALO2%XZZ,PZDIFFU_HALO2%XRKIP2,IKIP2_HALO2,IIB,IJB)
CALL INDINT_HALO2(-1, 0,PZDIFFU_HALO2%XZZ,PZDIFFU_HALO2%XRKIM1,IKIM1_HALO2,IIB,IJB)
CALL INDINT_HALO2(-2, 0,PZDIFFU_HALO2%XZZ,PZDIFFU_HALO2%XRKIM2,IKIM2_HALO2,IIB,IJB)
CALL INDINT_HALO2( 0, 1,PZDIFFU_HALO2%XZZ,PZDIFFU_HALO2%XRKJP1,IKJP1_HALO2,IIB,IJB)
CALL INDINT_HALO2( 0, 2,PZDIFFU_HALO2%XZZ,PZDIFFU_HALO2%XRKJP2,IKJP2_HALO2,IIB,IJB)
CALL INDINT_HALO2( 0,-1,PZDIFFU_HALO2%XZZ,PZDIFFU_HALO2%XRKJM1,IKJM1_HALO2,IIB,IJB)
CALL INDINT_HALO2( 0,-2,PZDIFFU_HALO2%XZZ,PZDIFFU_HALO2%XRKJM2,IKJM2_HALO2,IIB,IJB)
PZDIFFU_HALO2%NZDI = MAX(IKIP1_HALO2,IKIP2_HALO2,IKIM1_HALO2,IKIM2_HALO2)
PZDIFFU_HALO2%NZDJ = MAX(IKJP1_HALO2,IKJP2_HALO2,IKJM1_HALO2,IKJM2_HALO2)
IKMAX_HALO2 = MAX(PZDIFFU_HALO2%NZDI,PZDIFFU_HALO2%NZDJ)
PZDIFFU_HALO2%NZDLB = MAXVAL(IKMAX_HALO2) ! Model level, above which a truly horizontal computation of diffusion
! is possible at all grid points
!JUAN
CALL MPI_ALLREDUCE(PZDIFFU_HALO2%NZDLB ,KZDLB_ll, 1, MPI_INTEGER, MPI_MAX, NMNH_COMM_WORLD, IERR)
!print*,"zdiffusetup:: PZDIFFU_HALO2%NZDLB=",PZDIFFU_HALO2%NZDLB,KZDLB_ll
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PZDIFFU_HALO2%NZDLB = KZDLB_ll
!JUAN
! Compute reduction factors for diffusion coefficient in I and J direction
! Their purpose is to decrease the diffusion coefficient when there is a large height difference
! among the grid points entering into the computation of diffusion
SCAL = 1.E9 ! scaling factor for coefficient reduction
DO JI = IIB,IIE
DO JJ = IJB-1,IJE+1
ZN4HGTI_HALO2(JI,JJ) = PZDIFFU_HALO2%XZZ(JI+2,JJ,IKB)+PZDIFFU_HALO2%XZZ(JI-2,JJ,IKB)- &
4*(PZDIFFU_HALO2%XZZ(JI+1,JJ,IKB)+PZDIFFU_HALO2%XZZ(JI-1,JJ,IKB))+ &
6* PZDIFFU_HALO2%XZZ(JI,JJ,IKB)
ZMDHGTI_HALO2(JI,JJ) = (PZDIFFU_HALO2%XZZ(JI+2,JJ,IKB)+PZDIFFU_HALO2%XZZ(JI-2,JJ,IKB)+ &
PZDIFFU_HALO2%XZZ(JI+1,JJ,IKB)+PZDIFFU_HALO2%XZZ(JI-1,JJ,IKB)- &
4* PZDIFFU_HALO2%XZZ(JI,JJ,IKB))/4.
PZDIFFU_HALO2%XREDFACI(JI,JJ) = SCAL/(SCAL+ZN4HGTI_HALO2(JI,JJ)**4+ZMDHGTI_HALO2(JI,JJ)**4)
IF (((ZN4HGTI_HALO2(JI,JJ).GT.100).AND.(ZMDHGTI_HALO2(JI,JJ).GT.10)).OR. &
((ZN4HGTI_HALO2(JI,JJ).GT.10).AND.(ZMDHGTI_HALO2(JI,JJ).GT.100))) THEN
PZDIFFU_HALO2%XREDFACI(JI,JJ) = MIN(PZDIFFU_HALO2%XREDFACI(JI,JJ),0.1)
ENDIF
ENDDO
ENDDO
DO JI = IIB-1,IIE+1
DO JJ = IJB,IJE
ZN4HGTJ_HALO2(JI,JJ) = PZDIFFU_HALO2%XZZ(JI,JJ+2,IKB)+PZDIFFU_HALO2%XZZ(JI,JJ-2,IKB)- &
4*(PZDIFFU_HALO2%XZZ(JI,JJ+1,IKB)+PZDIFFU_HALO2%XZZ(JI,JJ-1,IKB))+ &
6* PZDIFFU_HALO2%XZZ(JI,JJ,IKB)
ZMDHGTJ_HALO2(JI,JJ) = (PZDIFFU_HALO2%XZZ(JI,JJ+2,IKB)+PZDIFFU_HALO2%XZZ(JI,JJ-2,IKB)+ &
PZDIFFU_HALO2%XZZ(JI,JJ+1,IKB)+PZDIFFU_HALO2%XZZ(JI,JJ-1,IKB)- &
4* PZDIFFU_HALO2%XZZ(JI,JJ,IKB))/4.
PZDIFFU_HALO2%XREDFACJ(JI,JJ) = SCAL/(SCAL+ZN4HGTJ_HALO2(JI,JJ)**4+ZMDHGTJ_HALO2(JI,JJ)**4)
IF (((ZN4HGTJ_HALO2(JI,JJ).GT.100).AND.(ZMDHGTJ_HALO2(JI,JJ).GT.10)).OR. &
((ZN4HGTJ_HALO2(JI,JJ).GT.10).AND.(ZMDHGTJ_HALO2(JI,JJ).GT.100))) THEN
PZDIFFU_HALO2%XREDFACJ(JI,JJ) = MIN(PZDIFFU_HALO2%XREDFACJ(JI,JJ),0.1)
ENDIF
ENDDO
ENDDO
CONTAINS
SUBROUTINE INDINT_HALO2(KII,KIJ,PZMASS,PKIND,KKMIN,KIB,KJB)
use mode_msg
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IMPLICIT NONE
INTEGER, INTENT(IN) :: KII,KIJ ! Relative position of remote points
INTEGER, INTENT(IN) :: KIB,KJB ! definition of domain begin
REAL, DIMENSION(KIB-2:,KJB-2:,:), INTENT(IN) :: PZMASS ! Height of mass points
REAL, DIMENSION(KIB-2:,KJB-2:,:), INTENT(INOUT) :: PKIND ! Real k index for vertical interpolation
INTEGER, DIMENSION(KIB-2:,KJB-2:),INTENT(INOUT) :: KKMIN ! Lowest model level for which truly horizontal computation of
! the diffusion is possible without intersecting the ground
! Local variables
! Domain sizes
INTEGER IIB,IJB,IIE,IJE,IKB,IKE,II1,II2,IJ1,IJ2
! Loop indices
INTEGER JI,JJ,JK,JIR,JJR,JK2
REAL ZHGT ! Height of the local grid point
CALL GET_INDICE_ll( IIB,IJB,IIE,IJE)
IKE = SIZE(PZMASS,3) - JPVEXT
IKB = 1 + JPVEXT ! (is this correct?)
IF ((KII.EQ.0).AND.(KIJ.NE.0)) THEN
II1 = IIB-1
II2 = IIE+1
!JUAN II1 = IIB-2
!JUAN II2 = IIE+2
IJ1 = IJB
IJ2 = IJE
ELSE IF ((KIJ.EQ.0).AND.(KII.NE.0)) THEN
II1 = IIB
II2 = IIE
IJ1 = IJB-1
IJ2 = IJE+1
!JUAN IJ1 = IJB-2
!JUAN IJ2 = IJE+2
ELSE
call Print_msg( NVERB_FATAL, 'GEN', 'INDINT_HALO2', 'KII=0 and KIJ=0' )
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ENDIF
DO JI = II1,II2
DO JJ = IJ1,IJ2
KKMIN(JI,JJ) = IKB
DO JK = IKB,IKE
JIR = JI + KII ! location of the remote points for which the real index is to be computed
JJR = JJ + KIJ
ZHGT = PZMASS(JI,JJ,JK) ! height for which the index is needed
IF (ZHGT.GT.PZMASS(JIR,JJR,JK)) THEN ! local point higher than remote point; search upward
IF (ZHGT.GT.PZMASS(JIR,JJR,IKE)) THEN
PKIND(JI,JJ,JK) = IKE
GOTO 20
ENDIF
DO JK2 = JK,IKE-1
IF((ZHGT.GT.PZMASS(JIR,JJR,JK2)).AND.(ZHGT.LE.PZMASS(JIR,JJR,JK2+1))) THEN
PKIND(JI,JJ,JK) = JK2+(ZHGT-PZMASS(JIR,JJR,JK2))/&
(PZMASS(JIR,JJR,JK2+1)-PZMASS(JIR,JJR,JK2))
GOTO 20
ENDIF
ENDDO
20 CONTINUE
ELSE ! local point lower than remote point; search downward
IF (ZHGT.LT.PZMASS(JIR,JJR,IKB)) THEN
PKIND(JI,JJ,JK) = IKB
KKMIN(JI,JJ) = MAX(KKMIN(JI,JJ),JK+1)
GOTO 25
ELSE IF (ZHGT.EQ.PZMASS(JIR,JJR,IKB)) THEN
PKIND(JI,JJ,JK) = IKB
KKMIN(JI,JJ) = MAX(KKMIN(JI,JJ),JK)
GOTO 25
ENDIF
DO JK2 = JK,IKB+1,-1
IF((ZHGT.GT.PZMASS(JIR,JJR,JK2-1)).AND.(ZHGT.LE.PZMASS(JIR,JJR,JK2))) THEN
PKIND(JI,JJ,JK) = JK2-1+(ZHGT-PZMASS(JIR,JJR,JK2-1))/&
(PZMASS(JIR,JJR,JK2)-PZMASS(JIR,JJR,JK2-1))
GOTO 25
ENDIF
ENDDO
25 CONTINUE
ENDIF
ENDDO
ENDDO
ENDDO
IF ( MINVAL(KKMIN) == 0 ) THEN
call Print_msg( NVERB_FATAL, 'GEN', 'INDINT_HALO2', 'MINVAL(KKMIN)=0' )
IF ( MINVAL(INT(PKIND)) == 0 ) THEN
call Print_msg( NVERB_FATAL, 'GEN', 'INDINT_HALO2', 'MINVAL(INT(PKIND))=0' )
END SUBROUTINE INDINT_HALO2
END SUBROUTINE ZDIFFUSETUP