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C $Header: /u/gcmpack/MITgcm/model/src/ini_nlfs_vars.F,v 1.4 2011/01/14 23:23:54 gforget Exp $ |
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C $Name: $ |
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#include "CPP_OPTIONS.h" |
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|
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CBOP |
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C !ROUTINE: INI_NLFS_VARS |
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C !INTERFACE: |
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SUBROUTINE INI_NLFS_VARS( myThid ) |
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C !DESCRIPTION: \bv |
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C *==========================================================* |
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C | SUBROUTINE INI_NLFS_VARS |
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C | o Initialise variables for Non-Linear Free-Surface |
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C | formulations (formerly INI_SURF_DR & INI_R_STAR) |
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C *==========================================================* |
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C \ev |
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|
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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 "SURFACE.h" |
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#include "DYNVARS.h" |
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|
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C !INPUT/OUTPUT PARAMETERS: |
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C == Routine arguments == |
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C myThid :: my Thread Id. number |
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INTEGER myThid |
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|
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#ifdef NONLIN_FRSURF |
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|
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C !LOCAL VARIABLES: |
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C Local variables |
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C i,j,k,bi,bj :: loop counter |
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INTEGER i,j,k,bi,bj |
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INTEGER ks |
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_RL hFacInfMOM, Rmin_tmp |
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c CHARACTER*(MAX_LEN_MBUF) suff |
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CEOP |
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|
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C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
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|
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#ifdef ALLOW_DEBUG |
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IF (debugMode) CALL DEBUG_ENTER('INI_NLFS_VARS',myThid) |
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#endif |
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|
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hFacInfMOM = hFacInf |
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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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C- 1rst bi,bj loop : |
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|
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C-- Initialise arrays (NLFS using r-coordinate): |
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DO j=1-Oly,sNy+Oly |
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DO i=1-Olx,sNx+Olx |
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hFac_surfC(i,j,bi,bj) = 0. |
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hFac_surfW(i,j,bi,bj) = 0. |
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hFac_surfS(i,j,bi,bj) = 0. |
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hFac_surfNm1C(i,j,bi,bj) = 0. |
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hFac_surfNm1W(i,j,bi,bj) = 0. |
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hFac_surfNm1S(i,j,bi,bj) = 0. |
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PmEpR(i,j,bi,bj) = 0. |
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Rmin_surf(i,j,bi,bj) = Ro_surf(i,j,bi,bj) |
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ENDDO |
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ENDDO |
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|
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C-- Initialise arrays (NLFS using r* coordinate): |
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DO j=1-Oly,sNy+Oly |
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DO i=1-Olx,sNx+Olx |
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rStarFacC(i,j,bi,bj) = 1. |
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rStarFacW(i,j,bi,bj) = 1. |
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rStarFacS(i,j,bi,bj) = 1. |
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rStarFacNm1C(i,j,bi,bj) = 1. |
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rStarFacNm1W(i,j,bi,bj) = 1. |
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rStarFacNm1S(i,j,bi,bj) = 1. |
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rStarExpC(i,j,bi,bj) = 1. |
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rStarExpW(i,j,bi,bj) = 1. |
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rStarExpS(i,j,bi,bj) = 1. |
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rStarDhCDt(i,j,bi,bj) = 0. |
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rStarDhWDt(i,j,bi,bj) = 0. |
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rStarDhSDt(i,j,bi,bj) = 0. |
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PmEpR(i,j,bi,bj) = 0. |
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ENDDO |
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ENDDO |
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C-- to make TAF happy: reset hFac to h0Fac (copied from hFac in ini_linear_phisurf) |
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DO k=1,Nr |
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DO j=1-Oly,sNy+Oly |
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DO i=1-Olx,sNx+Olx |
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_hFacC(i,j,k,bi,bj) = h0FacC(i,j,k,bi,bj) |
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_hFacW(i,j,k,bi,bj) = h0FacW(i,j,k,bi,bj) |
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_hFacS(i,j,k,bi,bj) = h0FacS(i,j,k,bi,bj) |
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ENDDO |
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ENDDO |
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ENDDO |
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|
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C- end 1rst bi,bj loop. |
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ENDDO |
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ENDDO |
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|
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C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
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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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|
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C-- Compute the mimimum value of r_surf (used for computing hFac_surfC) |
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DO j=1,sNy |
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DO i=1,sNx |
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ks = kSurfC(i,j,bi,bj) |
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IF (ks.LE.Nr) THEN |
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Rmin_tmp = rF(ks+1) |
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IF ( ks.EQ.kSurfW(i,j,bi,bj)) |
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& Rmin_tmp = MAX(Rmin_tmp, R_low(i-1,j,bi,bj)) |
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IF ( ks.EQ.kSurfW(i+1,j,bi,bj)) |
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& Rmin_tmp = MAX(Rmin_tmp, R_low(i+1,j,bi,bj)) |
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IF ( ks.EQ.kSurfS(i,j,bi,bj)) |
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& Rmin_tmp = MAX(Rmin_tmp, R_low(i,j-1,bi,bj)) |
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IF ( ks.EQ.kSurfS(i,j+1,bi,bj)) |
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& Rmin_tmp = MAX(Rmin_tmp, R_low(i,j+1,bi,bj)) |
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|
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Rmin_surf(i,j,bi,bj) = |
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& MAX( MAX(rF(ks+1),R_low(i,j,bi,bj)) + hFacInf*drF(ks), |
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& Rmin_tmp + hFacInfMOM*drF(ks) |
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& ) |
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ENDIF |
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ENDDO |
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ENDDO |
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|
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C-- Set etaH @ column lateral edges |
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DO j=2-Oly,sNy+Oly |
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DO i=2-Olx,sNx+Olx |
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etaHw(i,j,bi,bj) = 0.5 _d 0 |
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& *( etaH(i-1,j,bi,bj) + etaH(i,j,bi,bj) ) |
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etaHs(i,j,bi,bj) = 0.5 _d 0 |
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& *( etaH(i,j-1,bi,bj) + etaH(i,j,bi,bj) ) |
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c etaHw(i,j,bi,bj) = 0.5 _d 0 |
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c & *( etaH (i-1,j,bi,bj)*rA(i-1,j,bi,bj) |
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c & + etaH ( i ,j,bi,bj)*rA( i ,j,bi,bj) |
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c & )*recip_rAw(i,j,bi,bj) |
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c etaHs(i,j,bi,bj) = 0.5 _d 0 |
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c & *( etaH (i,j-1,bi,bj)*rA(i,j-1,bi,bj) |
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c & + etaH (i, j ,bi,bj)*rA(i, j ,bi,bj) |
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c & )*recip_rAs(i,j,bi,bj) |
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ENDDO |
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ENDDO |
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|
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C- end bi,bj loop. |
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ENDDO |
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ENDDO |
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|
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CALL EXCH_UV_XY_RL( etaHw, etaHs, .FALSE., myThid ) |
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CALL EXCH_XY_RL( Rmin_surf, myThid ) |
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C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
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#ifdef ALLOW_DEBUG |
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IF (debugMode) CALL DEBUG_LEAVE('INI_NLFS_VARS',myThid) |
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#endif |
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|
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#endif /* NONLIN_FRSURF */ |
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|
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RETURN |
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END |
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