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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
!-----------------------------------------------------------------
! $Source$ $Revision$
! MASDEV4_7 prep_ideal 2006/07/06 16:35:56
!-----------------------------------------------------------------
! ##########################
MODULE MODI_ANEL_BALANCE_n
! ##########################
!
INTERFACE
!
!
REAL, OPTIONAL :: PRESIDUAL
END SUBROUTINE ANEL_BALANCE_n
!
END INTERFACE
!
END MODULE MODI_ANEL_BALANCE_n
!
!
!
! ################################
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! ################################
!
!
!!**** *ANEL_BALANCE_n* - routine to apply an anelastic correction
!!
!!
!! PURPOSE
!! -------
! The purpose of this routine is to fulfill the anelastic balance
! in case of non-vanishing orography
!
!
!
!!** METHOD
!! ------
!! The coefficients for the flat operator are first computed. Then the
!! pressure equation is solved and the pressure gradient is added to the wind
!! components in order to render this wind field non-divergent.
!!
!! EXTERNAL
!! --------
!! FMLOOK : to retrieve a logical unit number associated with a file
!! TRID : to compute coefficients for the flat operator
!! PRESSURE : to solve the pressure equation and add the pressure term to
!! wind
!! MXM,MYM,MZM : to average a field at mass point in the x,y,z directions
!!
!!
!! IMPLICIT ARGUMENTS
!! ------------------
!!
!! Module MODD_CONF : contains configuration variables for all models.
!! NVERB : verbosity level for output-listing
!!
!! Module MODD_LUNIT : contains logical unit names for all models
!! CLUOUT0 : name of output-listing
!!
!! Module MODD_GRID_n : contains grid variables
!! XMAP,XXHAT,XYHAT,XZZ
!!
!! Module MODD_REF_n : contains reference state variables
!! XRHODJ,XTHVREF,XEXNREF,XRHODREF,XRVREF
!!
!! Module MODD_REF_n : contains reference state variables
!! XLINMASS : lineic mass along the lateral boundaries
!!
!! Module MODD_FIELD_n : contains prognostic variables
!! XUT,XVT,XWT,XTHT,XRT
!!
!! Module MODD_DYN_n : contains parameters for the dynamics
!! CPRESOPT : option for the pressure solver
!! NITR : number of iterations for the solver
!! XRELAX : relaxation coefficient used in the Richardson method
!!
!! Module MODD_LBC_n : contains parameters relative to the boundaries
!! CLBCX : choice of lateral boundary condition along x
!! CLBCY : choice of lateral boundary condition along y
!!
!! REFERENCE
!! ---------
!! NONE
!!
!!
!! AUTHOR
!! ------
!! V. Ducrocq * Meteo France *
!!
!! MODIFICATIONS
!! -------------
!! Original 6/09/94
!! J. Stein 4/11/94 put the pressure solver parameters in namelist
!! J. Stein 2/12/94 source cleaning
!! J.P. Lafore 03/01/95 call to PRESSURE to account for absolute pressure
!! J. Stein 17/01/95 bug in the pressure call
!! J. Stein 15/03/95 remove R from the historical variables
!! J.Stein and J.P. lafore 17/04/96 new version including the way to choose
!! the model number and the instant where the projection is performed
!! Stein,Lafore 14/01/97 new anelastic equations
!! J.Escobar : 15/09/2015 : WENO5 & JPHEXT <> 1
!-------------------------------------------------------------------------------
!
!* 0. DECLARATIONS
! ------------
!
!
USE MODE_ll
USE MODE_IO_ll
USE MODE_FM
USE MODE_MODELN_HANDLER
!
USE MODD_CONF ! declarative modules
USE MODD_LUNIT
USE MODD_PARAMETERS
USE MODD_GRID_n
USE MODD_DIM_n
USE MODD_METRICS_n
USE MODD_REF_n
USE MODD_FIELD_n
USE MODD_DYN_n
USE MODD_LBC_n
USE MODD_LUNIT_n
!
USE MODI_PRESSUREZ
USE MODE_SPLITTINGZ_ll
USE MODI_SHUMAN
!
IMPLICIT NONE
!
!* 0.1 Declarations of arguments :
!
REAL, OPTIONAL :: PRESIDUAL
!
!* 0.2 Declarations of local variables :
!
INTEGER :: ILUOUT,IRESP ! Logical unit number for output listing and
! return code
INTEGER :: IIY,IJY ! same variable for Y decomposition
INTEGER :: ITCOUNT ! counter value of temporal loop set to 1 ( this
! means that no guess of the pressure is available for
! the pressure solver
REAL :: ZDXHATM ! mean grid increment in the x direction
REAL :: ZDYHATM ! mean grid increment in the y direction
REAL, DIMENSION (SIZE(XRHODJ,3)) :: ZRHOM ! mean of XRHODJ on the plane x y
! localized at a mass level
!
REAL, DIMENSION(SIZE(XRHODJ,3)) :: ZAF,ZCF ! vector giving the nonvanishing
REAL, DIMENSION(:,:,:), ALLOCATABLE :: ZBFY ! elements of the tri-diag matrix
! in the pressure equation
REAL, DIMENSION(:), ALLOCATABLE :: ZTRIGSX ! arrays of sin or cos values for
REAL, DIMENSION(:), ALLOCATABLE :: ZTRIGSY ! the FFT in x and y directions
INTEGER, DIMENSION(19) :: IIFAXX ! decomposition in prime numbers
INTEGER, DIMENSION(19) :: IIFAXY ! for the FFT in x and y
! directions
REAL, DIMENSION(SIZE(XRHODJ,1),SIZE(XRHODJ,2),SIZE(XRHODJ,3)) :: ZPABST
! Potential at time t
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REAL, DIMENSION(SIZE(XRHODJ,1),SIZE(XRHODJ,2),SIZE(XRHODJ,3)) :: ZRU,ZRV,ZRW
! Rhod * (U,V,W)
REAL, DIMENSION(SIZE(XRHODJ,1),SIZE(XRHODJ,2),SIZE(XRHODJ,3)) :: ZTH
REAL, DIMENSION(:,:,:,:), ALLOCATABLE :: ZRR
!
INTEGER :: IRR ! Total number of water variables
INTEGER :: IRRL ! Number of liquid water variables
INTEGER :: IRRI ! Number of solid water variables
REAL :: ZDRYMASST ! Mass of dry air Md
REAL :: ZREFMASS ! Total mass of the ref. atmosphere
REAL :: ZMASS_O_PHI0 ! Mass / Phi0
LOGICAL :: GCLOSE_OUT ! switch for the LFI writing
CHARACTER (LEN= 28) :: YFMFILE ! virtual FM file
INTEGER :: IMI ! model index
!JUAN
INTEGER :: IIU_B,IJU_B,IKU
INTEGER :: IIU_SXP2_YP1_Z_ll,IJU_SXP2_YP1_Z_ll,IKU_SXP2_YP1_Z_ll
REAL, DIMENSION(:,:,:), ALLOCATABLE :: ZBFB,ZBF_SXP2_YP1_Z
!JUAN
!
!-------------------------------------------------------------------------------
!
!* 1. PROLOGUE :
! --------
!
CALL FMLOOK_ll(CLUOUT0,CLUOUT0,ILUOUT,IRESP)
CALL GET_DIM_EXT_ll('Y',IIY,IJY)
IF (L2D) THEN
ALLOCATE(ZBFY(IIY,IJY,SIZE(XRHODJ,3)))
ELSE
ALLOCATE(ZBFY(IJY,IIY,SIZE(XRHODJ,3)))
ENDIF
ALLOCATE(ZTRIGSX(3*(NIMAX_ll+2*JPHEXT)))
ALLOCATE(ZTRIGSY(3*(NJMAX_ll+2*JPHEXT)))
!JUAN Z_SPLITING
IKU=SIZE(XRHODJ,3)
CALL GET_DIM_EXT_ll('B',IIU_B,IJU_B)
ALLOCATE(ZBFB(IIU_B,IJU_B,IKU))
CALL GET_DIM_EXTZ_ll('SXP2_YP1_Z',IIU_SXP2_YP1_Z_ll,IJU_SXP2_YP1_Z_ll,IKU_SXP2_YP1_Z_ll)
ALLOCATE(ZBF_SXP2_YP1_Z(IIU_SXP2_YP1_Z_ll,IJU_SXP2_YP1_Z_ll,IKU_SXP2_YP1_Z_ll))
!JUAN Z_SPLITING
!
!-------------------------------------------------------------------------------
!
!* 2. PRESSURE SOLVER INITIALIZATION :
! -------------------------------
!
!
CALL TRIDZ(CLUOUT0,CLBCX,CLBCY,XMAP,XDXHAT,XDYHAT,ZDXHATM,ZDYHATM,ZRHOM, &
ZAF,ZCF,ZTRIGSX,ZTRIGSY,IIFAXX,IIFAXY,XRHODJ,XTHVREF,XZZ,ZBFY,&
ZBFB,ZBF_SXP2_YP1_Z)
!
!-------------------------------------------------------------------------------
!
!* 3. ANELASTIC CORRECTION :
! ---------------------
!
!
!* 3.1 multiplication by RHODJ
!
ZRU(:,:,:) = MXM(XRHODJ) * XUT(:,:,:)
ZRV(:,:,:) = MYM(XRHODJ) * XVT(:,:,:)
ZRW(:,:,:) = MZM(1,IKU,1,XRHODJ) * XWT(:,:,:)
ZTH(:,:,:) = XTHT(:,:,:)
ALLOCATE(ZRR(SIZE(XRHODJ,1),SIZE(XRHODJ,2),SIZE(XRHODJ,3),SIZE(XRT,4)))
ZRR(:,:,:,:) = XRT(:,:,:,:)
!
!
!
!
!* 3.2 satisfy the anelastic constraint
!
ITCOUNT =-1 ! no first guess of the pressure is available
ZPABST(:,:,:)= 0. ! ==================CAUTION=====================
ZDRYMASST = 0. ! | Initialization necessary for the |
ZREFMASS = 0. ! | computation of the absolute pressure, |
ZMASS_O_PHI0 = 1. ! | which is here not needed |
IRR = 0 ! | |
IRRL = 0 ! | |
IRRI = 0 ! ==============================================
GCLOSE_OUT=.FALSE.
YFMFILE='UNUSED'
!
IMI = GET_CURRENT_MODEL_INDEX()
CLBCX,CLBCY,CPRESOPT,NITR,LITRADJ,ITCOUNT,XRELAX,IMI, &
XRHODJ,XDXX,XDYY,XDZZ,XDZX,XDZY,ZDXHATM,ZDYHATM,ZRHOM, &
IRR,IRRL,IRRI,ZDRYMASST,ZREFMASS,ZMASS_O_PHI0, &
ZTH,ZRR,XRHODREF,XTHVREF,XRVREF,XEXNREF, XLINMASS, &
ZRU,ZRV,ZRW,ZPABST, &
!
DEALLOCATE(ZBFY,ZTRIGSX,ZTRIGSY,ZRR,ZBF_SXP2_YP1_Z)
!* 3.2 return to the historical variables
!
XUT(:,:,:) = ZRU(:,:,:) / MXM(XRHODJ)
XVT(:,:,:) = ZRV(:,:,:) / MYM(XRHODJ)
XWT(:,:,:) = ZRW(:,:,:) / MZM(1,IKU,1,XRHODJ)
!
!
!-------------------------------------------------------------------------------
!
END SUBROUTINE ANEL_BALANCE_n