C $Header: /u/gcmpack/MITgcm/model/src/ini_psurf.F,v 1.12 2018/01/17 15:04:01 jmc Exp $ C $Name: $ #include "PACKAGES_CONFIG.h" #include "CPP_OPTIONS.h" CBOP C !ROUTINE: INI_PSURF C !INTERFACE: SUBROUTINE INI_PSURF( myThid ) C !DESCRIPTION: \bv C *==========================================================* C | SUBROUTINE INI_PSURF | C | o Set model initial free-surface height/pressure. | C *==========================================================* C | There are several options for setting the initial | C | surface displacement (r unit) field. | C | 1. Inline code | C | 2. Two-dimensional data from a file. | C *==========================================================* C \ev C !USES: IMPLICIT NONE C === Global variables === #include "SIZE.h" #include "EEPARAMS.h" #include "PARAMS.h" #include "GRID.h" #include "DYNVARS.h" #include "SURFACE.h" #ifdef ALLOW_CD_CODE # include "CD_CODE_VARS.h" #endif #ifdef ALLOW_SHELFICE # include "SHELFICE.h" #endif C !INPUT/OUTPUT PARAMETERS: C == Routine arguments == C myThid :: Number of this instance of INI_PSURF INTEGER myThid C !LOCAL VARIABLES: C == Local variables == C bi,bj :: tiles indices C I,J :: Loop counters INTEGER bi, bj INTEGER I, J CEOP C-- Initialise surface position anomaly to zero DO bj = myByLo(myThid), myByHi(myThid) DO bi = myBxLo(myThid), myBxHi(myThid) DO J=1-OLy,sNy+OLy DO I=1-OLx,sNx+OLx etaN(I,J,bi,bj) = 0. _d 0 ENDDO ENDDO ENDDO ENDDO C Read an initial state IF (pSurfInitFile .NE. ' ') THEN CALL READ_FLD_XY_RL( pSurfInitFile, ' ', etaN, 0, myThid ) C fill the overlap (+ BARRIER) _EXCH_XY_RL(etaN, myThid) ENDIF #ifdef ALLOW_CD_CODE C-- By default, initialize etaNm1 with etaN : DO bj=myByLo(myThid),myByHi(myThid) DO bi=myBxLo(myThid),myBxHi(myThid) DO J=1-OLy,sNy+OLy DO I=1-OLx,sNx+OLx etaNm1(I,J,bi,bj) = etaN(I,J,bi,bj) ENDDO ENDDO ENDDO ENDDO C _EXCH_XY_RL(etaNm1, myThid) #endif #ifdef EXACT_CONSERV C-- By default, initialize etaH with etaN : DO bj=myByLo(myThid),myByHi(myThid) DO bi=myBxLo(myThid),myBxHi(myThid) DO j=1-OLy,sNy+OLy DO i=1-OLx,sNx+OLx etaH(i,j,bi,bj) = etaN(i,j,bi,bj) etaHnm1(i,j,bi,bj) = etaN(i,j,bi,bj) dEtaHdt(i,j,bi,bj) = 0. _d 0 ENDDO ENDDO ENDDO ENDDO #endif /* EXACT_CONSERV */ #ifdef ALLOW_SHELFICE IF ( useShelfIce .AND. usingZCoords ) THEN DO bj=myByLo(myThid),myByHi(myThid) DO bi=myBxLo(myThid),myBxHi(myThid) DO j=1-OLy,sNy+OLy DO i=1-OLx,sNx+OLx phi0surf(i,j,bi,bj) = phi0surf(i,j,bi,bj) & + shelficeLoadAnomaly(i,j,bi,bj)*recip_rhoConst ENDDO ENDDO ENDDO ENDDO ENDIF #endif /* ALLOW_SHELFICE */ RETURN END