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C $Header: /u/gcmpack/MITgcm/pkg/seaice/seaice_init_varia.F,v 1.71 2012/03/11 13:43:46 jmc Exp $ |
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C $Name: $ |
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|
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#include "SEAICE_OPTIONS.h" |
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#ifdef ALLOW_OBCS |
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# include "OBCS_OPTIONS.h" |
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#endif |
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|
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CStartOfInterface |
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SUBROUTINE SEAICE_INIT_VARIA( myThid ) |
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C *==========================================================* |
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C | SUBROUTINE SEAICE_INIT_VARIA | |
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C | o Initialization of sea ice model. | |
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C *==========================================================* |
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C *==========================================================* |
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IMPLICIT NONE |
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|
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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 "FFIELDS.h" |
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#include "SEAICE_SIZE.h" |
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#include "SEAICE_PARAMS.h" |
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#include "SEAICE.h" |
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#include "SEAICE_TRACER.h" |
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#include "SEAICE_TAVE.h" |
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#ifdef OBCS_UVICE_OLD |
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# include "OBCS_GRID.h" |
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#endif |
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|
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C === Routine arguments === |
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C myThid :: Thread no. that called this routine. |
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INTEGER myThid |
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CEndOfInterface |
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|
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C === Local variables === |
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C i,j,k,bi,bj :: Loop counters |
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|
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INTEGER i, j, bi, bj |
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_RL PSTAR |
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INTEGER kSurface |
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#ifdef SEAICE_CGRID |
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_RS mask_uice |
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#endif |
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INTEGER k |
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#ifdef ALLOW_SITRACER |
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INTEGER iTr, jTh |
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#endif |
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#ifdef OBCS_UVICE_OLD |
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INTEGER I_obc, J_obc |
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#endif /* ALLOW_OBCS */ |
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|
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IF ( buoyancyRelation .EQ. 'OCEANICP' ) THEN |
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kSurface = Nr |
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ELSE |
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kSurface = 1 |
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ENDIF |
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|
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C-- Initialise all variables in common blocks: |
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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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HEFF(i,j,bi,bj)=0. _d 0 |
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AREA(i,j,bi,bj)=0. _d 0 |
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UICE(i,j,bi,bj)=0. _d 0 |
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VICE(i,j,bi,bj)=0. _d 0 |
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#ifdef SEAICE_ALLOW_FREEDRIFT |
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uice_fd(i,j,bi,bj)=0. _d 0 |
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vice_fd(i,j,bi,bj)=0. _d 0 |
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#endif |
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C |
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uIceNm1(i,j,bi,bj)=0. _d 0 |
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vIceNm1(i,j,bi,bj)=0. _d 0 |
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#ifdef SEAICE_GROWTH_LEGACY |
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areaNm1(i,j,bi,bj)=0. _d 0 |
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hEffNm1(i,j,bi,bj)=0. _d 0 |
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#endif |
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ETA (i,j,bi,bj) = 0. _d 0 |
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ZETA(i,j,bi,bj) = 0. _d 0 |
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DRAGS(i,j,bi,bj) = 0. _d 0 |
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DRAGA(i,j,bi,bj) = 0. _d 0 |
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FORCEX(i,j,bi,bj) = 0. _d 0 |
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FORCEY(i,j,bi,bj) = 0. _d 0 |
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uIceC(i,j,bi,bj) = 0. _d 0 |
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vIceC(i,j,bi,bj) = 0. _d 0 |
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#ifdef SEAICE_CGRID |
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seaiceMassC(i,j,bi,bj)=0. _d 0 |
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seaiceMassU(i,j,bi,bj)=0. _d 0 |
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seaiceMassV(i,j,bi,bj)=0. _d 0 |
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stressDivergenceX(i,j,bi,bj) = 0. _d 0 |
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stressDivergenceY(i,j,bi,bj) = 0. _d 0 |
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# ifdef SEAICE_ALLOW_EVP |
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seaice_sigma1 (i,j,bi,bj) = 0. _d 0 |
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seaice_sigma2 (i,j,bi,bj) = 0. _d 0 |
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seaice_sigma12(i,j,bi,bj) = 0. _d 0 |
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# endif /* SEAICE_ALLOW_EVP */ |
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#else /* SEAICE_CGRID */ |
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AMASS(i,j,bi,bj) = 0. _d 0 |
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DAIRN(i,j,bi,bj) = 0. _d 0 |
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WINDX(i,j,bi,bj) = 0. _d 0 |
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WINDY(i,j,bi,bj) = 0. _d 0 |
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GWATX(i,j,bi,bj) = 0. _d 0 |
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GWATY(i,j,bi,bj) = 0. _d 0 |
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#endif /* SEAICE_CGRID */ |
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DWATN(i,j,bi,bj) = 0. _d 0 |
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PRESS0(i,j,bi,bj) = 0. _d 0 |
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FORCEX0(i,j,bi,bj)= 0. _d 0 |
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FORCEY0(i,j,bi,bj)= 0. _d 0 |
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ZMAX(i,j,bi,bj) = 0. _d 0 |
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ZMIN(i,j,bi,bj) = 0. _d 0 |
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HSNOW(i,j,bi,bj) = 0. _d 0 |
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#ifdef SEAICE_VARIABLE_SALINITY |
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HSALT(i,j,bi,bj) = 0. _d 0 |
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#endif |
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#ifdef ALLOW_SITRACER |
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DO iTr = 1, SItrMaxNum |
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SItracer(i,j,bi,bj,iTr) = 0. _d 0 |
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SItrBucket(i,j,bi,bj,iTr) = 0. _d 0 |
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c "ice concentration" tracer that should remain .EQ.1. |
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if (SItrName(iTr).EQ.'one') SItracer(i,j,bi,bj,iTr)=1. _d 0 |
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ENDDO |
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DO jTh = 1, 5 |
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SItrHEFF (i,j,bi,bj,jTh) = 0. _d 0 |
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ENDDO |
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DO jTh = 1, 3 |
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SItrAREA (i,j,bi,bj,jTh) = 0. _d 0 |
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ENDDO |
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#endif |
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TICE(i,j,bi,bj) = 0. _d 0 |
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DO k=1,MULTDIM |
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TICES(i,j,k,bi,bj)=0. _d 0 |
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ENDDO |
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TAUX(i,j,bi,bj) = 0. _d 0 |
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TAUY(i,j,bi,bj) = 0. _d 0 |
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#ifdef ALLOW_SEAICE_COST_EXPORT |
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uHeffExportCell(i,j,bi,bj) = 0. _d 0 |
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vHeffExportCell(i,j,bi,bj) = 0. _d 0 |
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#endif |
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saltWtrIce(i,j,bi,bj) = 0. _d 0 |
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frWtrIce(i,j,bi,bj) = 0. _d 0 |
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#if (defined (ALLOW_MEAN_SFLUX_COST_CONTRIBUTION) || defined (ALLOW_SSH_GLOBMEAN_COST_CONTRIBUTION)) |
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frWtrAtm(i,j,bi,bj) = 0. _d 0 |
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AREAforAtmFW(i,j,bi,bj)=0. _d 0 |
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#endif |
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ENDDO |
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ENDDO |
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ENDDO |
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ENDDO |
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|
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#ifdef ALLOW_TIMEAVE |
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C Initialize averages 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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CALL TIMEAVE_RESET( FUtave , 1, bi, bj, myThid ) |
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CALL TIMEAVE_RESET( FVtave , 1, bi, bj, myThid ) |
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CALL TIMEAVE_RESET( EmPmRtave, 1, bi, bj, myThid ) |
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CALL TIMEAVE_RESET( QNETtave , 1, bi, bj, myThid ) |
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CALL TIMEAVE_RESET( QSWtave , 1, bi, bj, myThid ) |
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CALL TIMEAVE_RESET( UICEtave , 1, bi, bj, myThid ) |
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CALL TIMEAVE_RESET( VICEtave , 1, bi, bj, myThid ) |
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CALL TIMEAVE_RESET( HEFFtave , 1, bi, bj, myThid ) |
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CALL TIMEAVE_RESET( AREAtave , 1, bi, bj, myThid ) |
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SEAICE_timeAve(bi,bj) = ZERO |
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ENDDO |
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ENDDO |
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#endif /* ALLOW_TIMEAVE */ |
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|
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C-- Initialize (variable) grid info. As long as we allow masking of |
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C-- velocities outside of ice covered areas (in seaice_dynsolver) |
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C-- we need to re-initialize seaiceMaskU/V here for TAF/TAMC |
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#ifdef SEAICE_CGRID |
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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+1,sNy+OLy |
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DO i=1-OLx+1,sNx+OLx |
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seaiceMaskU(i,j,bi,bj)= 0.0 _d 0 |
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seaiceMaskV(i,j,bi,bj)= 0.0 _d 0 |
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mask_uice=HEFFM(i,j,bi,bj)+HEFFM(i-1,j ,bi,bj) |
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IF(mask_uice.GT.1.5 _d 0) seaiceMaskU(i,j,bi,bj)=1.0 _d 0 |
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mask_uice=HEFFM(i,j,bi,bj)+HEFFM(i ,j-1,bi,bj) |
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IF(mask_uice.GT.1.5 _d 0) seaiceMaskV(i,j,bi,bj)=1.0 _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 /* SEAICE_CGRID */ |
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|
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DO bj=myByLo(myThid),myByHi(myThid) |
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DO bi=myBxLo(myThid),myBxHi(myThid) |
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#ifdef OBCS_UVICE_OLD |
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#ifdef SEAICE_CGRID |
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IF (useOBCS) THEN |
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C-- If OBCS is turned on, close southern and western boundaries |
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DO i=1-OLx,sNx+OLx |
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C Southern boundary |
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J_obc = OB_Js(i,bi,bj) |
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IF (J_obc.NE.0) THEN |
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seaiceMaskU(i,J_obc,bi,bj)= 0.0 _d 0 |
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seaiceMaskV(i,J_obc,bi,bj)= 0.0 _d 0 |
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ENDIF |
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ENDDO |
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DO j=1-OLy,sNy+OLy |
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C Western boundary |
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I_obc=OB_Iw(j,bi,bj) |
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IF (I_obc.NE.0) THEN |
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seaiceMaskU(I_obc,j,bi,bj)= 0.0 _d 0 |
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seaiceMaskV(I_obc,j,bi,bj)= 0.0 _d 0 |
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ENDIF |
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ENDDO |
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ENDIF |
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#endif /* SEAICE_CGRID */ |
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#endif /* OBCS_UVICE_OLD */ |
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|
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DO j=1-OLy,sNy+OLy |
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DO i=1-OLx,sNx+OLx |
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TICE(i,j,bi,bj)=273.0 _d 0 |
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DO k=1,MULTDIM |
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TICES(i,j,k,bi,bj)=273.0 _d 0 |
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ENDDO |
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#ifndef SEAICE_CGRID |
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AMASS (i,j,bi,bj)=1000.0 _d 0 |
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#else |
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seaiceMassC(i,j,bi,bj)=1000.0 _d 0 |
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seaiceMassU(i,j,bi,bj)=1000.0 _d 0 |
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seaiceMassV(i,j,bi,bj)=1000.0 _d 0 |
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#endif |
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ENDDO |
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ENDDO |
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|
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ENDDO |
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ENDDO |
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|
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C-- Update overlap regions |
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#ifdef SEAICE_CGRID |
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CALL EXCH_UV_XY_RL(seaiceMaskU,seaiceMaskV,.FALSE.,myThid) |
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#else |
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_EXCH_XY_RS(UVM, myThid) |
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#endif |
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|
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C-- Now lets look at all these beasts |
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IF ( debugLevel .GE. debLevC ) THEN |
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CALL PLOT_FIELD_XYRL( HEFFM , 'Current HEFFM ' , |
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& nIter0, myThid ) |
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#ifdef SEAICE_CGRID |
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CALL PLOT_FIELD_XYRL( seaiceMaskU, 'Current seaiceMaskU', |
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& nIter0, myThid ) |
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CALL PLOT_FIELD_XYRL( seaiceMaskV, 'Current seaiceMaskV', |
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& nIter0, myThid ) |
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#else |
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CALL PLOT_FIELD_XYRS( UVM , 'Current UVM ' , |
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& nIter0, myThid ) |
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#endif |
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ENDIF |
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|
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C-- Set model variables to initial/restart conditions |
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IF ( .NOT. ( startTime .EQ. baseTime .AND. nIter0 .EQ. 0 |
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& .AND. pickupSuff .EQ. ' ') ) THEN |
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|
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CALL SEAICE_READ_PICKUP ( myThid ) |
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|
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ELSE |
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|
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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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HEFF(i,j,bi,bj)=SEAICE_initialHEFF*HEFFM(i,j,bi,bj) |
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UICE(i,j,bi,bj)=ZERO |
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VICE(i,j,bi,bj)=ZERO |
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ENDDO |
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ENDDO |
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ENDDO |
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ENDDO |
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|
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C-- Read initial sea-ice velocity from file (if available) |
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IF ( uIceFile .NE. ' ' ) |
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& CALL READ_FLD_XY_RL( uIceFile, ' ', uIce, 0, myThid ) |
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IF ( vIceFile .NE. ' ' ) |
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& CALL READ_FLD_XY_RL( vIceFile, ' ', vIce, 0, myThid ) |
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IF ( uIceFile .NE. ' ' .OR. vIceFile .NE. ' ' ) THEN |
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#ifdef SEAICE_CGRID |
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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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uIce(i,j,bi,bj) = uIce(i,j,bi,bj)*seaiceMaskU(i,j,bi,bj) |
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vIce(i,j,bi,bj) = vIce(i,j,bi,bj)*seaiceMaskV(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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#endif /* SEAICE_CGRID */ |
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CALL EXCH_UV_XY_RL( uIce, vIce, .TRUE., myThid ) |
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ENDIF |
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|
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C-- Read initial sea-ice thickness from file if available. |
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IF ( HeffFile .NE. ' ' ) THEN |
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CALL READ_FLD_XY_RL( HeffFile, ' ', HEFF, 0, myThid ) |
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_EXCH_XY_RL(HEFF,myThid) |
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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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HEFF(i,j,bi,bj) = MAX(HEFF(i,j,bi,bj),ZERO) |
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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 |
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|
| 315 |
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 |
| 318 |
DO i=1-OLx,sNx+OLx |
| 319 |
IF(HEFF(i,j,bi,bj).GT.ZERO) AREA(i,j,bi,bj)=ONE |
| 320 |
ENDDO |
| 321 |
ENDDO |
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ENDDO |
| 323 |
ENDDO |
| 324 |
|
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C-- Read initial sea-ice area from file if available. |
| 326 |
IF ( AreaFile .NE. ' ' ) THEN |
| 327 |
CALL READ_FLD_XY_RL( AreaFile, ' ', AREA, 0, myThid ) |
| 328 |
_EXCH_XY_RL(AREA,myThid) |
| 329 |
DO bj=myByLo(myThid),myByHi(myThid) |
| 330 |
DO bi=myBxLo(myThid),myBxHi(myThid) |
| 331 |
DO j=1-OLy,sNy+OLy |
| 332 |
DO i=1-OLx,sNx+OLx |
| 333 |
AREA(i,j,bi,bj) = MAX(AREA(i,j,bi,bj),ZERO) |
| 334 |
AREA(i,j,bi,bj) = MIN(AREA(i,j,bi,bj),ONE) |
| 335 |
IF ( AREA(i,j,bi,bj) .LE. ZERO ) HEFF(i,j,bi,bj) = ZERO |
| 336 |
IF ( HEFF(i,j,bi,bj) .LE. ZERO ) AREA(i,j,bi,bj) = ZERO |
| 337 |
ENDDO |
| 338 |
ENDDO |
| 339 |
ENDDO |
| 340 |
ENDDO |
| 341 |
ENDIF |
| 342 |
|
| 343 |
DO bj=myByLo(myThid),myByHi(myThid) |
| 344 |
DO bi=myBxLo(myThid),myBxHi(myThid) |
| 345 |
DO j=1-OLy,sNy+OLy |
| 346 |
DO i=1-OLx,sNx+OLx |
| 347 |
HSNOW(i,j,bi,bj) = 0.2 _d 0 * AREA(i,j,bi,bj) |
| 348 |
ENDDO |
| 349 |
ENDDO |
| 350 |
ENDDO |
| 351 |
ENDDO |
| 352 |
|
| 353 |
C-- Read initial snow thickness from file if available. |
| 354 |
IF ( HsnowFile .NE. ' ' ) THEN |
| 355 |
CALL READ_FLD_XY_RL( HsnowFile, ' ', HSNOW, 0, myThid ) |
| 356 |
_EXCH_XY_RL(HSNOW,myThid) |
| 357 |
DO bj=myByLo(myThid),myByHi(myThid) |
| 358 |
DO bi=myBxLo(myThid),myBxHi(myThid) |
| 359 |
DO j=1-OLy,sNy+OLy |
| 360 |
DO i=1-OLx,sNx+OLx |
| 361 |
HSNOW(i,j,bi,bj) = MAX(HSNOW(i,j,bi,bj),ZERO) |
| 362 |
ENDDO |
| 363 |
ENDDO |
| 364 |
ENDDO |
| 365 |
ENDDO |
| 366 |
ENDIF |
| 367 |
|
| 368 |
#ifdef SEAICE_VARIABLE_SALINITY |
| 369 |
DO bj=myByLo(myThid),myByHi(myThid) |
| 370 |
DO bi=myBxLo(myThid),myBxHi(myThid) |
| 371 |
DO j=1-OLy,sNy+OLy |
| 372 |
DO i=1-OLx,sNx+OLx |
| 373 |
HSALT(i,j,bi,bj)=HEFF(i,j,bi,bj)*salt(i,j,kSurface,bi,bj)* |
| 374 |
& SEAICE_rhoIce*SEAICE_saltFrac |
| 375 |
cif & ICE2WATR*rhoConstFresh*SEAICE_saltFrac |
| 376 |
|
| 377 |
ENDDO |
| 378 |
ENDDO |
| 379 |
ENDDO |
| 380 |
ENDDO |
| 381 |
|
| 382 |
C-- Read initial sea ice salinity from file if available. |
| 383 |
IF ( HsaltFile .NE. ' ' ) THEN |
| 384 |
CALL READ_FLD_XY_RL( HsaltFile, ' ', HSALT, 0, myThid ) |
| 385 |
_EXCH_XY_RL(HSALT,myThid) |
| 386 |
ENDIF |
| 387 |
#endif /* SEAICE_VARIABLE_SALINITY */ |
| 388 |
|
| 389 |
#ifdef ALLOW_SITRACER |
| 390 |
C-- Read initial sea ice age from file if available. |
| 391 |
DO iTr = 1, SItrMaxNum |
| 392 |
IF ( SItrFile(iTr) .NE. ' ' ) THEN |
| 393 |
CALL READ_FLD_XY_RL( siTrFile(iTr), ' ', |
| 394 |
& SItracer(1-OLx,1-OLy,1,1,iTr), 0, myThid ) |
| 395 |
_EXCH_XY_RL(SItracer(1-OLx,1-OLy,1,1,iTr),myThid) |
| 396 |
ENDIF |
| 397 |
ENDDO |
| 398 |
#endif /* ALLOW_SITRACER */ |
| 399 |
|
| 400 |
ENDIF |
| 401 |
|
| 402 |
#if (defined (ALLOW_MEAN_SFLUX_COST_CONTRIBUTION) || defined (ALLOW_SSH_GLOBMEAN_COST_CONTRIBUTION)) |
| 403 |
DO bj=myByLo(myThid),myByHi(myThid) |
| 404 |
DO bi=myBxLo(myThid),myBxHi(myThid) |
| 405 |
DO j=1-OLy,sNy+OLy |
| 406 |
DO i=1-OLx,sNx+OLx |
| 407 |
AREAforAtmFW(i,j,bi,bj) = AREA(i,j,bi,bj) |
| 408 |
ENDDO |
| 409 |
ENDDO |
| 410 |
ENDDO |
| 411 |
ENDDO |
| 412 |
#endif |
| 413 |
|
| 414 |
#ifdef ALLOW_OBCS |
| 415 |
C-- In case we use scheme with a large stencil that extends into overlap: |
| 416 |
C no longer needed with the right masking in advection & diffusion S/R. |
| 417 |
c IF ( useOBCS ) THEN |
| 418 |
c DO bj=myByLo(myThid),myByHi(myThid) |
| 419 |
c DO bi=myBxLo(myThid),myBxHi(myThid) |
| 420 |
c CALL OBCS_COPY_TRACER( HEFF(1-OLx,1-OLy,bi,bj), |
| 421 |
c I 1, bi, bj, myThid ) |
| 422 |
c CALL OBCS_COPY_TRACER( AREA(1-OLx,1-OLy,bi,bj), |
| 423 |
c I 1, bi, bj, myThid ) |
| 424 |
c CALL OBCS_COPY_TRACER( HSNOW(1-OLx,1-OLy,bi,bj), |
| 425 |
c I 1, bi, bj, myThid ) |
| 426 |
#ifdef SEAICE_VARIABLE_SALINITY |
| 427 |
c CALL OBCS_COPY_TRACER( HSALT(1-OLx,1-OLy,bi,bj), |
| 428 |
c I 1, bi, bj, myThid ) |
| 429 |
#endif |
| 430 |
c ENDDO |
| 431 |
c ENDDO |
| 432 |
c ENDIF |
| 433 |
#endif /* ALLOW_OBCS */ |
| 434 |
|
| 435 |
C--- Complete initialization |
| 436 |
PSTAR = SEAICE_strength |
| 437 |
DO bj=myByLo(myThid),myByHi(myThid) |
| 438 |
DO bi=myBxLo(myThid),myBxHi(myThid) |
| 439 |
DO j=1-OLy,sNy+OLy |
| 440 |
DO i=1-OLx,sNx+OLx |
| 441 |
ZETA(i,j,bi,bj) = HEFF(i,j,bi,bj)*(1.0 _d 11) |
| 442 |
ETA(i,j,bi,bj) = ZETA(i,j,bi,bj)/SEAICE_eccen**2 |
| 443 |
PRESS0(i,j,bi,bj) = PSTAR*HEFF(i,j,bi,bj) |
| 444 |
& *EXP(-20.0 _d 0*(ONE-AREA(i,j,bi,bj))) |
| 445 |
ZMAX(I,J,bi,bj) = SEAICE_zetaMaxFac*PRESS0(I,J,bi,bj) |
| 446 |
ZMIN(i,j,bi,bj) = SEAICE_zetaMin |
| 447 |
PRESS0(i,j,bi,bj) = PRESS0(i,j,bi,bj)*HEFFM(i,j,bi,bj) |
| 448 |
ENDDO |
| 449 |
ENDDO |
| 450 |
IF ( useRealFreshWaterFlux .AND. .NOT.useThSIce ) THEN |
| 451 |
DO j=1-OLy,sNy+OLy |
| 452 |
DO i=1-OLx,sNx+OLx |
| 453 |
sIceLoad(i,j,bi,bj) = HEFF(i,j,bi,bj)*SEAICE_rhoIce |
| 454 |
& + HSNOW(i,j,bi,bj)*SEAICE_rhoSnow |
| 455 |
|
| 456 |
ENDDO |
| 457 |
ENDDO |
| 458 |
ENDIF |
| 459 |
ENDDO |
| 460 |
ENDDO |
| 461 |
|
| 462 |
RETURN |
| 463 |
END |
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