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jmc |
1.19 |
C $Header: /u/gcmpack/MITgcm/model/src/calc_surf_dr.F,v 1.18 2012/06/01 03:22:02 jmc Exp $ |
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jmc |
1.1 |
C $Name: $ |
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jmc |
1.16 |
#include "PACKAGES_CONFIG.h" |
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jmc |
1.1 |
#include "CPP_OPTIONS.h" |
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cnh |
1.3 |
CBOP |
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C !ROUTINE: CALC_SURF_DR |
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C !INTERFACE: |
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jmc |
1.16 |
SUBROUTINE CALC_SURF_DR( etaFld, |
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I myTime, myIter, myThid ) |
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cnh |
1.3 |
C !DESCRIPTION: \bv |
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C *==========================================================* |
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jmc |
1.11 |
C | SUBROUTINE CALC_SURF_DR |
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C | o Calculate the new surface level thickness according to |
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C | the surface r-position (Non-Linear Free-Surf) |
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C | o take decision if grid box becomes too thin or too thick |
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cnh |
1.3 |
C *==========================================================* |
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C \ev |
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C !USES: |
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1.1 |
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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cnh |
1.3 |
C !INPUT/OUTPUT PARAMETERS: |
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jmc |
1.1 |
C == Routine arguments == |
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jmc |
1.16 |
C etaFld :: current eta field used to update the hFactor |
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C myTime :: current time in simulation |
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C myIter :: current iteration number in simulation |
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C myThid :: thread number for this instance of the routine. |
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jmc |
1.18 |
_RL etaFld(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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jmc |
1.1 |
_RL myTime |
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INTEGER myIter |
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INTEGER myThid |
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#ifdef NONLIN_FRSURF |
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cnh |
1.3 |
C !LOCAL VARIABLES: |
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jmc |
1.1 |
C Local variables |
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cnh |
1.3 |
C i,j,k,bi,bj :: loop counter |
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C rSurftmp :: free surface r-position that is used to compute hFac_surf |
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C adjust_nb_pt :: Nb of grid points where rSurf is adjusted (hFactInf) |
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C adjust_volum :: adjustment effect on the volume (domain size) |
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jmc |
1.7 |
C numbWrite :: count the Number of warning written on STD-ERR file |
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C numbWrMax :: maximum Number of warning written on STD-ERR file |
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jmc |
1.6 |
INTEGER i,j,bi,bj |
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jmc |
1.7 |
INTEGER ks, numbWrite, numbWrMax |
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jmc |
1.11 |
_RL hFactmp, adjust_nb_pt, adjust_volum |
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jmc |
1.2 |
_RL rSurftmp(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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jmc |
1.1 |
_RS hhm, hhp |
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jmc |
1.13 |
c CHARACTER*(MAX_LEN_MBUF) suff |
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cnh |
1.3 |
CEOP |
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jmc |
1.7 |
DATA numbWrite / 0 / |
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numbWrMax = Nx*Ny |
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jmc |
1.1 |
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C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
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jmc |
1.2 |
adjust_nb_pt = 0. |
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adjust_volum = 0. |
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jmc |
1.1 |
DO bj=myByLo(myThid), myByHi(myThid) |
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DO bi=myBxLo(myThid), myBxHi(myThid) |
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jmc |
1.16 |
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gforget |
1.15 |
C-- before updating hFac_surfC/S/W save current fields |
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jmc |
1.18 |
DO j=1-OLy,sNy+OLy |
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DO i=1-OLx,sNx+OLx |
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gforget |
1.15 |
hFac_surfNm1C(i,j,bi,bj) = hFac_surfC(i,j,bi,bj) |
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hFac_surfNm1S(i,j,bi,bj) = hFac_surfS(i,j,bi,bj) |
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hFac_surfNm1W(i,j,bi,bj) = hFac_surfW(i,j,bi,bj) |
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ENDDO |
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ENDDO |
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jmc |
1.2 |
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C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
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jmc |
1.16 |
C-- Compute the new fractional thickness of surface level (kSurfC): |
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jmc |
1.2 |
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DO j=0,sNy+1 |
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DO i=0,sNx+1 |
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rSurftmp(i,j) = Ro_surf(i,j,bi,bj)+etaFld(i,j,bi,bj) |
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jmc |
1.16 |
ks = kSurfC(i,j,bi,bj) |
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jmc |
1.1 |
IF (ks.LE.Nr) THEN |
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jmc |
1.2 |
IF (rSurftmp(i,j) .LT. Rmin_surf(i,j,bi,bj)) THEN |
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C-- Needs to do something : |
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jmc |
1.7 |
IF (numbWrite.LE.numbWrMax) THEN |
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jmc |
1.13 |
numbWrite = numbWrite + 1 |
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jmc |
1.19 |
hFactmp = h0FacC(i,j,ks,bi,bj) |
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& + ( rSurftmp(i,j) - Ro_surf(i,j,bi,bj) )*recip_drF(ks) |
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jmc |
1.1 |
IF (hFactmp.LT.hFacInf) THEN |
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jmc |
1.13 |
WRITE(errorMessageUnit,'(2A,6I4,I10)') |
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jmc |
1.7 |
& 'WARNING: hFacC < hFacInf at:', |
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jmc |
1.1 |
& ' i,j,k,bi,bj,Thid,Iter=',i,j,ks,bi,bj,myThid,myIter |
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jmc |
1.2 |
ELSE |
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jmc |
1.13 |
WRITE(errorMessageUnit,'(2A,6I4,I10)') |
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jmc |
1.7 |
& 'WARNING: hFac < hFacInf near:', |
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jmc |
1.2 |
& ' i,j,k,bi,bj,Thid,Iter=',i,j,ks,bi,bj,myThid,myIter |
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jmc |
1.1 |
ENDIF |
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jmc |
1.7 |
WRITE(errorMessageUnit,'(A,2F10.6,1PE14.6)') |
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& 'hFac_n-1,hFac_n,eta =', |
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jmc |
1.2 |
& hfacC(i,j,ks,bi,bj), hFactmp, etaFld(i,j,bi,bj) |
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jmc |
1.7 |
ENDIF |
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jmc |
1.2 |
C-- Decide to STOP : |
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jmc |
1.13 |
c WRITE(errorMessageUnit,'(A)') |
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jmc |
1.7 |
c & 'STOP in CALC_SURF_DR : too SMALL hFac !' |
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jmc |
1.13 |
c STOP 'ABNORMAL END: S/R CALC_SURF_DR' |
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jmc |
1.2 |
C---------- |
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C-- Continue with Rmin_surf: |
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IF ( i.GE.1.AND.i.LE.sNx .AND. |
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& j.GE.1.AND.j.LE.sNy ) THEN |
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adjust_nb_pt = adjust_nb_pt + 1. |
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jmc |
1.13 |
adjust_volum = adjust_volum |
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& + rA(i,j,bi,bj)*(Rmin_surf(i,j,bi,bj)-rSurftmp(i,j)) |
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ENDIF |
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rSurftmp(i,j) = Rmin_surf(i,j,bi,bj) |
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C---------- |
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ENDIF |
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C-- Set hFac_surfC : |
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1.19 |
hFac_surfC(i,j,bi,bj) = h0FacC(i,j,ks,bi,bj) |
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& + ( rSurftmp(i,j) - Ro_surf(i,j,bi,bj) |
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& )*recip_drF(ks)*maskC(i,j,ks,bi,bj) |
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jmc |
1.2 |
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C-- Usefull warning when hFac becomes very large: |
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jmc |
1.8 |
IF ( numbWrite.LE.numbWrMax .AND. |
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& hFac_surfC(i,j,bi,bj).GT.hFacSup ) THEN |
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1.13 |
numbWrite = numbWrite + 1 |
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WRITE(errorMessageUnit,'(2A,6I4,I10)') |
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jmc |
1.7 |
& 'WARNING: hFacC > hFacSup at:', |
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jmc |
1.1 |
& ' i,j,k,bi,bj,Thid,Iter=',i,j,ks,bi,bj,myThid,myIter |
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jmc |
1.13 |
WRITE(errorMessageUnit,'(A,2F10.6,1PE14.6)') |
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jmc |
1.7 |
& 'hFac_n-1,hFac_n,eta =', hfacC(i,j,ks,bi,bj), |
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& hFac_surfC(i,j,bi,bj), etaFld(i,j,bi,bj) |
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jmc |
1.8 |
ENDIF |
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jmc |
1.1 |
C---------- |
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ENDIF |
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jmc |
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jmc |
1.1 |
ENDDO |
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ENDDO |
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C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
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C-- Compute fractional thickness of surface level, for U & V point: |
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DO j=1,sNy |
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DO i=1,sNx+1 |
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jmc |
1.16 |
ks = kSurfW(i,j,bi,bj) |
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jmc |
1.1 |
IF (ks.LE.Nr) THEN |
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jmc |
1.2 |
hhm = rF(ks) |
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jmc |
1.16 |
IF(ks.EQ.kSurfC(i-1,j,bi,bj)) hhm = rSurftmp(i-1,j) |
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jmc |
1.2 |
hhp = rF(ks) |
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jmc |
1.16 |
IF(ks.EQ.kSurfC(i,j,bi,bj)) hhp = rSurftmp(i,j) |
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jmc |
1.18 |
hFac_surfW(i,j,bi,bj) = h0FacW(i,j,ks,bi,bj) |
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& + ( MIN(hhm,hhp) |
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& - MIN( Ro_surf(i-1,j,bi,bj), Ro_surf(i,j,bi,bj) ) |
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& )*recip_drF(ks)*maskW(i,j,ks,bi,bj) |
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jmc |
1.1 |
ENDIF |
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ENDDO |
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ENDDO |
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jmc |
1.2 |
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jmc |
1.1 |
DO j=1,sNy+1 |
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DO i=1,sNx |
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jmc |
1.16 |
ks = kSurfS(i,j,bi,bj) |
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jmc |
1.1 |
IF (ks.LE.Nr) THEN |
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jmc |
1.2 |
hhm = rF(ks) |
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jmc |
1.16 |
IF(ks.EQ.kSurfC(i,j-1,bi,bj)) hhm = rSurftmp(i,j-1) |
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jmc |
1.2 |
hhp = rF(ks) |
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jmc |
1.16 |
IF(ks.EQ.kSurfC(i,j,bi,bj)) hhp = rSurftmp(i,j) |
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jmc |
1.18 |
hFac_surfS(i,j,bi,bj) = h0FacS(i,j,ks,bi,bj) |
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& + ( MIN(hhm,hhp) |
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& - MIN( Ro_surf(i,j-1,bi,bj), Ro_surf(i,j,bi,bj) ) |
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& )*recip_drF(ks)*maskS(i,j,ks,bi,bj) |
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jmc |
1.1 |
ENDIF |
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ENDDO |
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ENDDO |
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jmc |
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jmc |
1.16 |
#ifdef ALLOW_OBCS |
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C-- Apply OBC to hFac_surfW,S before the EXCH calls |
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IF ( useOBCS ) THEN |
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CALL OBCS_APPLY_SURF_DR( |
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I bi, bj, etaFld, |
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U hFac_surfC, hFac_surfW, hFac_surfS, |
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jmc |
1.17 |
I myTime, myIter, myThid ) |
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jmc |
1.16 |
ENDIF |
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#endif /* ALLOW_OBCS */ |
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jmc |
1.2 |
C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
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C- end bi,bj loop. |
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jmc |
1.1 |
ENDDO |
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ENDDO |
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jmc |
1.2 |
C-- Global diagnostic : |
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jmc |
1.14 |
_GLOBAL_SUM_RL( adjust_nb_pt , myThid ) |
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jmc |
1.18 |
IF ( adjust_nb_pt.GE.1. ) THEN |
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_GLOBAL_SUM_RL( adjust_volum , myThid ) |
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jmc |
1.13 |
_BEGIN_MASTER( myThid ) |
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WRITE(standardMessageUnit,'(2(A,I10),1PE16.8)') |
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jmc |
1.7 |
& ' SURF_ADJUSTMENT: Iter=', myIter, |
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& ' Nb_pts,Vol=', nint(adjust_nb_pt), adjust_volum |
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_END_MASTER( myThid ) |
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jmc |
1.2 |
ENDIF |
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jmc |
1.14 |
_EXCH_XY_RS(hFac_surfC, myThid ) |
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jmc |
1.1 |
CALL EXCH_UV_XY_RS(hFac_surfW,hFac_surfS,.FALSE.,myThid) |
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jmc |
1.5 |
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jmc |
1.2 |
C----- |
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jmc |
1.16 |
C Note: testing kSurfW,S is equivalent to a full height mask |
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jmc |
1.2 |
C ==> no need for applying the mask here. |
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C and with "partial thin wall" ==> mask could be applied in S/R UPDATE_SURF_DR |
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C----- |
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jmc |
1.1 |
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jmc |
1.12 |
c IF ( myIter.GE.0 ) THEN |
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c WRITE(suff,'(I10.10)') myIter |
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c CALL WRITE_FLD_XY_RS( 'hFac_surfC.', suff, hFac_surfC, |
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jmc |
1.13 |
c & myIter, myThid ) |
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jmc |
1.12 |
c ENDIF |
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jmc |
1.1 |
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C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
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#endif /* NONLIN_FRSURF */ |
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RETURN |
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END |
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