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dgoldberg |
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C $Header: /u/gcmpack/MITgcm/model/src/ini_psurf.F,v 1.11 2009/06/14 21:45:12 jmc Exp $ |
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C $Name: $ |
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#include "PACKAGES_CONFIG.h" |
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#include "CPP_OPTIONS.h" |
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CBOP |
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C !ROUTINE: INI_PSURF |
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C !INTERFACE: |
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SUBROUTINE INI_PSURF( myThid ) |
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C !DESCRIPTION: \bv |
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C *==========================================================* |
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C | SUBROUTINE INI_PSURF | |
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C | o Set model initial free-surface height/pressure. | |
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C *==========================================================* |
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C | There are several options for setting the initial | |
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C | surface displacement (r unit) field. | |
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C | 1. Inline code | |
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C | 2. Two-dimensional data from a file. | |
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C *==========================================================* |
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C \ev |
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C !USES: |
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IMPLICIT NONE |
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C === Global variables === |
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#include "SIZE.h" |
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#include "EEPARAMS.h" |
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#include "PARAMS.h" |
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#include "GRID.h" |
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#include "DYNVARS.h" |
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#include "SURFACE.h" |
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#ifdef ALLOW_CD_CODE |
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#include "CD_CODE_VARS.h" |
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#endif |
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C !INPUT/OUTPUT PARAMETERS: |
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C == Routine arguments == |
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C myThid :: Number of this instance of INI_PSURF |
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INTEGER myThid |
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C !LOCAL VARIABLES: |
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C == Local variables == |
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C bi,bj :: tiles indices |
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C I,J :: Loop counters |
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INTEGER bi, bj |
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INTEGER I, J |
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CEOP |
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C-- Initialise surface position anomaly to zero |
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DO bj = myByLo(myThid), myByHi(myThid) |
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DO bi = myBxLo(myThid), myBxHi(myThid) |
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DO J=1-Oly,sNy+Oly |
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DO I=1-Olx,sNx+Olx |
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c etaN(I,J,bi,bj) = 0. _d 0 |
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ENDDO |
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ENDDO |
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ENDDO |
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ENDDO |
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C Read an initial state |
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IF (pSurfInitFile .NE. ' ') THEN |
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c CALL READ_FLD_XY_RL( pSurfInitFile, ' ', etaN, 0, myThid ) |
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C fill the overlap (+ BARRIER) |
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_EXCH_XY_RL(etaN, myThid) |
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ENDIF |
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#ifdef ALLOW_CD_CODE |
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C-- By default, initialize etaNm1 with etaN : |
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DO bj=myByLo(myThid),myByHi(myThid) |
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DO bi=myBxLo(myThid),myBxHi(myThid) |
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DO J=1-Oly,sNy+Oly |
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DO I=1-Olx,sNx+Olx |
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etaNm1(I,J,bi,bj) = etaN(I,J,bi,bj) |
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ENDDO |
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ENDDO |
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ENDDO |
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ENDDO |
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C _EXCH_XY_RL(etaNm1, myThid) |
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#endif |
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#ifdef EXACT_CONSERV |
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C-- By default, initialize etaH with etaN : |
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DO bj=myByLo(myThid),myByHi(myThid) |
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DO bi=myBxLo(myThid),myBxHi(myThid) |
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DO j=1-Oly,sNy+Oly |
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DO i=1-Olx,sNx+Olx |
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etaH(i,j,bi,bj) = etaN(i,j,bi,bj) |
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etaHnm1(i,j,bi,bj) = etaN(i,j,bi,bj) |
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dEtaHdt(i,j,bi,bj) = 0. _d 0 |
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ENDDO |
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ENDDO |
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ENDDO |
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ENDDO |
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#endif /* EXACT_CONSERV */ |
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RETURN |
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END |
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