C $Header: /u/gcmpack/MITgcm/model/src/initialise_varia.F,v 1.44 2005/06/19 21:36:33 jmc Exp $
C $Name: $
#include "PACKAGES_CONFIG.h"
#include "CPP_OPTIONS.h"
CBOP
C !ROUTINE: INITIALISE_VARIA
C !INTERFACE:
SUBROUTINE INITIALISE_VARIA(myThid)
C !DESCRIPTION: \bv
C *==========================================================*
C | SUBROUTINE INITIALISE_VARIA
C | o Set the initial conditions for dynamics variables
C | and time dependent arrays
C *==========================================================*
C | This routine reads/writes data from an input file and
C | from various binary files.
C | Each thread invokes an instance of this routine as does
C | each process in a multi-process parallel environment like
C | MPI.
C *==========================================================*
C \ev
C !CALLING SEQUENCE:
C INITIALISE_VARIA
C |
C |-- INI_LINEAR_PHISURF
C |
C |-- INI_CORI
C |
C |-- INI_CG2D
C |
C |-- INI_CG3D
C |
C |-- INI_MIXING
C |
C |-- INI_DYNVARS
C |
C |-- INI_FIELDS
C |
C |-- INI_AUTODIFF
C |
C |-- PACKAGES_INIT_VARIABLES
C |
C |-- THE_CORRECTION_STEP (if restart from old pickup files)
C |
C |-- CALL CONVECTIVE_ADJUSTMENT_INI
C |
C |-- CALC_SURF_DR
C |
C |-- UPDATE_SURF_DR
C |
C |-- UPDATE_CG2D
C |
C |-- INTEGR_CONTINUITY
C |
C |-- TIMEAVE_STATVARS
C |
C |-- PTRACERS_STATVARS
C |
C |-- STATE_SUMMARY
C !USES:
IMPLICIT NONE
C == Global variables ==
#include "SIZE.h"
#include "EEPARAMS.h"
#include "PARAMS.h"
#include "DYNVARS.h"
#include "SURFACE.h"
#ifdef ALLOW_SHAP_FILT
# include "SHAP_FILT.h"
#endif
#ifdef ALLOW_ZONAL_FILT
# include "ZONAL_FILT.h"
#endif
C !INPUT/OUTPUT PARAMETERS:
C == Routine arguments ==
INTEGER myThid
C !LOCAL VARIABLES:
C == Local variables ==
INTEGER bi,bj,K,iMin,iMax,jMin,jMax
CEOP
#ifdef ALLOW_DEBUG
IF (debugMode) CALL DEBUG_ENTER('INITIALISE_VARIA',myThid)
#endif
#ifdef ALLOW_AUTODIFF_TAMC
nIter0 = NINT( (startTime-baseTime)/deltaTClock )
C-- Set Bo_surf => define the Linear Relation: Phi_surf(eta)
#ifdef ALLOW_DEBUG
IF (debugMode) CALL DEBUG_CALL('INI_LINEAR_PHISURF',myThid)
#endif
CALL INI_LINEAR_PHISURF( myThid )
C-- Set coriolis operators
#ifdef ALLOW_DEBUG
IF (debugMode) CALL DEBUG_CALL('INI_CORI',myThid)
#endif
CALL INI_CORI( myThid )
C-- Set laplace operators for use in 2D conjugate gradient solver.
#ifdef ALLOW_DEBUG
IF (debugMode) CALL DEBUG_CALL('INI_CG2D',myThid)
#endif
CALL INI_CG2D( myThid )
#ifdef ALLOW_NONHYDROSTATIC
C-- Set laplace operators for use in 3D conjugate gradient solver.
ceh3 should add an IF ( useNONHYDROSTATIC ) THEN
#ifdef ALLOW_DEBUG
IF (debugMode) CALL DEBUG_CALL('INI_CG3D',myThid)
#endif
CALL INI_CG3D( myThid )
#endif
#endif /* ALLOW_AUTODIFF_TAMC */
_BARRIER
C-- Initialise 3-dim. diffusivities
#ifdef ALLOW_DEBUG
IF (debugMode) CALL DEBUG_CALL('INI_MIXING',myThid)
#endif
CALL INI_MIXING( myThid )
_BARRIER
#ifdef ALLOW_TAU_EDDY
C-- Initialise eddy diffusivities
CALL TAUEDDY_INIT_VARIA( myThid )
#endif
C-- Initialize DYNVARS arrays (state fields + G terms: Gu,Gv,...) to zero [always]
#ifdef ALLOW_DEBUG
IF (debugMode) CALL DEBUG_CALL('INI_DYNVARS',myThid)
#endif
CALL INI_DYNVARS( myThid )
C-- Initialise model fields.
C Starting values of U, V, W, temp., salt. and tendency terms
C are set here. Fields are either set to default or read from
C stored files.
#ifndef ALLOW_OFFLINE
#ifdef ALLOW_DEBUG
IF (debugMode) CALL DEBUG_CALL('INI_FIELDS',myThid)
#endif
CALL INI_FIELDS( myThid )
#endif
_BARRIER
#ifdef ALLOW_AUTODIFF_TAMC
C-- Initialise active fields to help TAMC
CALL INI_AUTODIFF( myThid )
_BARRIER
#endif
C-- Initialize variable data for packages
#ifdef ALLOW_DEBUG
IF (debugMode) CALL DEBUG_CALL('PACKAGES_INIT_VARIABLES',myThid)
#endif
CALL PACKAGES_INIT_VARIABLES( myThid )
#ifndef ALLOW_AUTODIFF_TAMC
IF ( usePickupBeforeC35 ) THEN
C-- IMPORTANT : Need to activate the following call to restart from
C a pickup file written by MITgcmUV_checkpoint34 or earlier.
IF ( startTime .NE. baseTime ) THEN
#ifdef ALLOW_DEBUG
IF (debugMode) CALL DEBUG_CALL('THE_CORRECTION_STEP',myThid)
#endif
CALL THE_CORRECTION_STEP(startTime, nIter0, myThid)
ENDIF
ENDIF
#endif
C-- Initial conditions are convectively adjusted (for historical reasons)
#ifndef ALLOW_OFFLINE
IF ( startTime .EQ. baseTime .AND. cAdjFreq .NE. 0. ) THEN
#ifdef ALLOW_DEBUG
IF (debugMode) CALL DEBUG_CALL('CONVECTIVE_ADJUSTMENT_INI',myThid)
#endif
CADJ loop = parallel
DO bj = myByLo(myThid), myByHi(myThid)
CADJ loop = parallel
DO bi = myBxLo(myThid), myBxHi(myThid)
iMin=1-Olx
iMax=sNx+Olx
jMin=1-Oly
jMax=sNy+Oly
CALL CONVECTIVE_ADJUSTMENT_INI(
I bi, bj, iMin, iMax, jMin, jMax,
I startTime, nIter0, myThid )
ENDDO
ENDDO
_BARRIER
END
IF
#endif
#ifdef NONLIN_FRSURF
C-- Compute the surface level thickness <-- function of etaH(n)
C and modify hFac(C,W,S) accordingly :
IF ( select_rStar.NE.0 )
& CALL CALC_R_STAR(etaH, startTime, -1 , myThid )
IF (nonlinFreeSurf.GT.0) THEN
IF ( select_rStar.GT.0 ) THEN
CALL UPDATE_R_STAR( startTime, nIter0, myThid )
ELSE
CALL CALC_SURF_DR(etaH, startTime, -1 , myThid )
CALL UPDATE_SURF_DR( startTime, nIter0, myThid )
ENDIF
ENDIF
C- update also CG2D matrix (and preconditioner)
IF ( nonlinFreeSurf.GT.2) THEN
CALL UPDATE_CG2D( startTime, nIter0, myThid )
ENDIF
#endif /* NONLIN_FRSURF */
#ifndef ALLOW_OFFLINE
#ifdef ALLOW_DEBUG
IF (debugMode) CALL DEBUG_CALL('INTEGR_CONTINUITY',myThid)
#endif
DO bj=myByLo(myThid),myByHi(myThid)
DO bi=myBxLo(myThid),myBxHi(myThid)
C-- Integrate continuity vertically for vertical velocity
CALL INTEGR_CONTINUITY( bi, bj, uVel, vVel,
I startTime, nIter0, myThid )
ENDDO
ENDDO
#endif
#ifdef EXACT_CONSERV
IF ( exactConserv ) THEN
#ifdef ALLOW_DEBUG
IF (debugMode) CALL DEBUG_CALL('UPDATE_ETAH',myThid)
#endif
C-- Update etaH(n) :
CALL UPDATE_ETAH( startTime, nIter0, myThid )
ENDIF
#endif /* EXACT_CONSERV */
#ifdef NONLIN_FRSURF
IF ( select_rStar.NE.0 ) THEN
C-- r* : compute the future level thickness according to etaH(n+1)
CALL CALC_R_STAR(etaH, startTime, nIter0, myThid )
ELSEIF ( nonlinFreeSurf.GT.0) THEN
C-- compute the future surface level thickness according to etaH(n+1)
CALL CALC_SURF_DR(etaH, startTime, nIter0, myThid )
ENDIF
#endif /* NONLIN_FRSURF */
c IF ( nIter0.EQ.0 .AND. staggerTimeStep ) THEN
C-- Filter initial T & S fields if staggerTimeStep
C (only for backward compatibility ; to be removed later)
#ifdef ALLOW_SHAP_FILT
c IF ( useSHAP_FILT .AND. shap_filt_TrStagg ) THEN
c CALL SHAP_FILT_APPLY_TS(theta,salt,startTime,nIter0,myThid)
c ENDIF
#endif
#ifdef ALLOW_ZONAL_FILT
c IF ( useZONAL_FILT .AND. zonal_filt_TrStagg ) THEN
c CALL ZONAL_FILT_APPLY_TS( theta, salt, myThid )
c ENDIF
#endif
c ENDIF
#ifdef ALLOW_TIMEAVE
#ifdef ALLOW_DEBUG
IF (debugMode) CALL DEBUG_CALL('TIMEAVE_STATVARS',myThid)
#endif
DO bj=myByLo(myThid),myByHi(myThid)
DO bi=myBxLo(myThid),myBxHi(myThid)
C-- initialise time-average arrays with initial state values
IF (taveFreq.GT.0.) THEN
CALL TIMEAVE_STATVARS(startTime, nIter0, bi, bj, myThid)
ENDIF
cswdptr -- add ---
#ifdef ALLOW_PTRACERS
che3 needs an IF ( usePTRACERS ) THEN
#ifdef ALLOW_DEBUG
IF (debugMode) CALL DEBUG_CALL('PTRACERS_STATVARS',myThid)
#endif
CALL PTRACERS_STATVARS(startTime, nIter0, bi, bj, myThid)
#endif
cswdptr -- end add ---
C-- end bi,bj loop.
ENDDO
ENDDO
#endif /* ALLOW_TIMEAVE */
C AMM
#ifdef ALLOW_GRIDALT
if (useGRIDALT) then
CALL TIMER_START('GRIDALT_UPDATE [INITIALISE_VARIA]',mythid)
CALL GRIDALT_UPDATE(myThid)
CALL TIMER_STOP ('GRIDALT_UPDATE [INITIALISE_VARIA]',mythid)
endif
#endif
C AMM
C-- Fill in overlap regions for wVel :
#ifndef ALLOW_OFFLINE
_EXCH_XYZ_R8(wVel,myThid)
#endif
C-- Finally summarise the model state
#ifdef ALLOW_DEBUG
IF (debugMode) CALL DEBUG_CALL('STATE_SUMMARY',myThid)
#endif
CALL STATE_SUMMARY( myThid )
#ifdef ALLOW_DEBUG
IF (debugMode) CALL DEBUG_LEAVE('INITIALISE_VARIA',myThid)
#endif
RETURN
END