| 1 |
jmc |
1.7 |
C $Header: /u/gcmpack/MITgcm/pkg/mom_common/mom_calc_hfacz.F,v 1.6 2009/06/28 01:08:25 jmc Exp $ |
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heimbach |
1.2 |
C $Name: $ |
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adcroft |
1.1 |
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#include "MOM_COMMON_OPTIONS.h" |
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CBOP |
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C !ROUTINE: MOM_CALC_HFACZ |
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C !INTERFACE: ========================================================== |
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SUBROUTINE MOM_CALC_HFACZ( |
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I bi,bj,k, |
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O hFacZ,r_hFacZ, |
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I myThid) |
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C !DESCRIPTION: |
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C Calculates the fractional thickness at vorticity points |
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C !USES: =============================================================== |
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IMPLICIT NONE |
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#include "SIZE.h" |
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jmc |
1.3 |
#include "EEPARAMS.h" |
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#include "PARAMS.h" |
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adcroft |
1.1 |
#include "GRID.h" |
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jmc |
1.3 |
#ifdef ALLOW_EXCH2 |
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jmc |
1.5 |
#include "W2_EXCH2_SIZE.h" |
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jmc |
1.3 |
#include "W2_EXCH2_TOPOLOGY.h" |
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#endif /* ALLOW_EXCH2 */ |
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adcroft |
1.1 |
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heimbach |
1.2 |
#ifdef ALLOW_AUTODIFF_TAMC |
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# include "tamc.h" |
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# include "tamc_keys.h" |
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#endif |
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adcroft |
1.1 |
C !INPUT PARAMETERS: =================================================== |
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C bi,bj :: tile indices |
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C k :: vertical level |
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C myThid :: thread number |
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INTEGER bi,bj,k |
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INTEGER myThid |
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C !OUTPUT PARAMETERS: ================================================== |
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C hFacZ :: fractional thickness at vorticity points |
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C r_hFacZ :: reciprocal |
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_RS hFacZ(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RS r_hFacZ(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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C !LOCAL VARIABLES: ==================================================== |
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C i,j :: loop indices |
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jmc |
1.3 |
C hZoption :: forward mode option to select the way hFacZ is computed: |
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C 0 : = minimum of 4 hFacW,hFacS arround (consistent with |
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C definition of partial cell & mask near topography) |
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C 1 : = minimum of 2 average (hFacW)_j,(hFacS)_i |
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C 2 : = average of 4 hFacW,hFacS arround (consistent with |
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C how free surface affects hFacW,hFacS it using r* and |
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C without topography) |
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adcroft |
1.1 |
INTEGER I,J |
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heimbach |
1.2 |
#ifdef ALLOW_DEPTH_CONTROL |
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_RL hFacZOpen(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL hFacZOpenI(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL hFacZOpenJ(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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# ifdef USE_SMOOTH_MIN |
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jmc |
1.7 |
_RS SMOOTHMIN_RS |
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EXTERNAL SMOOTHMIN_RS |
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heimbach |
1.2 |
# endif /* USE_SMOOTH_MIN */ |
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#else |
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jmc |
1.4 |
_RS hFacZOpen |
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jmc |
1.3 |
INTEGER hZoption |
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LOGICAL northWestCorner, northEastCorner, |
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& southWestCorner, southEastCorner |
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INTEGER myFace |
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#ifdef ALLOW_EXCH2 |
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INTEGER myTile |
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#endif /* ALLOW_EXCH2 */ |
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CEOP |
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PARAMETER ( hZoption = 0 ) |
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heimbach |
1.2 |
#endif /* ALLOW_DEPTH_CONTROL */ |
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adcroft |
1.1 |
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heimbach |
1.2 |
#ifdef ALLOW_AUTODIFF_TAMC |
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#ifdef ALLOW_DEPTH_CONTROL |
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act1 = bi - myBxLo(myThid) |
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max1 = myBxHi(myThid) - myBxLo(myThid) + 1 |
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act2 = bj - myByLo(myThid) |
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max2 = myByHi(myThid) - myByLo(myThid) + 1 |
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act3 = myThid - 1 |
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max3 = nTx*nTy |
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act4 = ikey_dynamics - 1 |
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ikey = (act1 + 1) + act2*max1 |
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& + act3*max1*max2 |
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& + act4*max1*max2*max3 |
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kkey = (ikey-1)*Nr + k |
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#endif /* ALLOW_DEPTH_CONTROL */ |
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#endif /* ALLOW_AUTODIFF_TAMC */ |
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adcroft |
1.1 |
C-- Calculate open water fraction at vorticity points |
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heimbach |
1.2 |
#ifdef ALLOW_DEPTH_CONTROL |
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jmc |
1.7 |
DO j=1-OLy,sNy+OLy |
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DO i=1-OLx,sNx+OLx |
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heimbach |
1.2 |
hFacZ(i,j) =0. |
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r_hFacZ(i,j) =0. |
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hFacZOpen(i,j) =0. |
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hFacZOpenJ(i,j)=0. |
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hFacZOpenJ(i,j)=0. |
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ENDDO |
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ENDDO |
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#ifdef ALLOW_AUTODIFF_TAMC |
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CADJ STORE hFacZ(:,:) = comlev1_bibj_k , key=kkey, byte=isbyte |
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CADJ STORE r_hFacZ(:,:) = comlev1_bibj_k , key=kkey, byte=isbyte |
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#endif /* ALLOW_AUTODIFF_TAMC */ |
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jmc |
1.7 |
DO j=2-OLy,sNy+OLy |
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DO i=2-OLx,sNx+OLx |
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heimbach |
1.2 |
hFacZOpenJ(i,j)= |
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#ifdef USE_SMOOTH_MIN |
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jmc |
1.7 |
& SMOOTHMIN_RS(_hFacW(i ,j ,k,bi,bj), |
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heimbach |
1.2 |
#else |
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& MIN(_hFacW(i ,j ,k,bi,bj), |
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#endif /* USE_SMOOTH_MIN */ |
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& _hFacW(i ,j-1,k,bi,bj)) |
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& *maskW(i,j,k,bi,bj)*maskW(i,j-1,k,bi,bj) |
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hFacZOpenI(i,j)= |
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#ifdef USE_SMOOTH_MIN |
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jmc |
1.7 |
& SMOOTHMIN_RS(_hFacS(i ,j ,k,bi,bj), |
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heimbach |
1.2 |
#else |
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& MIN(_hFacS(i ,j ,k,bi,bj), |
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#endif /* USE_SMOOTH_MIN */ |
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& _hFacS(i-1,j ,k,bi,bj)) |
| 128 |
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& *maskS(i,j,k,bi,bj)*maskS(i-1,j,k,bi,bj) |
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ENDDO |
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ENDDO |
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#ifdef ALLOW_AUTODIFF_TAMC |
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#ifdef ALLOW_DEPTH_CONTROL |
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CADJ STORE hFacZOpenI(:,:) = comlev1_bibj_k , key=kkey, byte=isbyte |
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CADJ STORE hFacZOpenJ(:,:) = comlev1_bibj_k , key=kkey, byte=isbyte |
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#endif /* ALLOW_DEPTH_CONTROL */ |
| 136 |
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#endif /* ALLOW_AUTODIFF_TAMC */ |
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jmc |
1.7 |
DO j=2-OLy,sNy+OLy |
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DO i=2-OLx,sNx+OLx |
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heimbach |
1.2 |
hFacZ(i,j) = |
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#ifdef USE_SMOOTH_MIN |
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jmc |
1.7 |
& SMOOTHMIN_RS(hFacZOpenI(i,j),hFacZOpenJ(i,j)) |
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heimbach |
1.2 |
#else |
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& MIN(hFacZOpenI(i,j),hFacZOpenJ(i,j)) |
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#endif /* USE_SMOOTH_MIN */ |
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& *maskW(i,j,k,bi,bj)*maskW(i,j-1,k,bi,bj) |
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& *maskS(i,j,k,bi,bj)*maskS(i-1,j,k,bi,bj) |
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ENDDO |
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ENDDO |
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#ifdef ALLOW_AUTODIFF_TAMC |
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#ifdef ALLOW_DEPTH_CONTROL |
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CADJ STORE hFacZ(:,:) = comlev1_bibj_k , key=kkey, byte=isbyte |
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#endif /* ALLOW_DEPTH_CONTROL */ |
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#endif /* ALLOW_AUTODIFF_TAMC */ |
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jmc |
1.7 |
DO j=2-OLy,sNy+OLy |
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DO i=2-OLx,sNx+OLx |
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heimbach |
1.2 |
IF (hFacZ(i,j).EQ.0.) THEN |
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r_hFacZ(i,j)=0. |
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ELSE |
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r_hFacZ(i,j)=1./hFacZ(i,j) |
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ENDIF |
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ENDDO |
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ENDDO |
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#ifdef ALLOW_AUTODIFF_TAMC |
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#ifdef ALLOW_DEPTH_CONTROL |
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CADJ STORE r_hFacZ(:,:) = comlev1_bibj_k , key=kkey, byte=isbyte |
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#endif /* ALLOW_DEPTH_CONTROL */ |
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#endif /* ALLOW_AUTODIFF_TAMC */ |
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#else /* not ALLOW_DEPTH_CONTROL */ |
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jmc |
1.3 |
C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
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C- Initialize hFacZ: |
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jmc |
1.7 |
c DO j=1-OLy,sNy+OLy |
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c DO i=1-OLx,sNx+OLx |
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jmc |
1.3 |
c hFacZ(i,j)=0. |
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c ENDDO |
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c ENDDO |
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C-- 1rst row & column are not computed: fill with zero |
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jmc |
1.7 |
DO i=1-OLx,sNx+OLx |
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hFacZ(i,1-OLy)=0. |
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adcroft |
1.1 |
ENDDO |
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jmc |
1.7 |
DO j=2-OLy,sNy+OLy |
| 185 |
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hFacZ(1-OLx,j)=0. |
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jmc |
1.3 |
ENDDO |
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C-- Calculate open water fraction at vorticity points |
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IF ( hZoption.EQ.2 ) THEN |
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jmc |
1.7 |
DO j=2-OLy,sNy+OLy |
| 192 |
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DO i=2-OLx,sNx+OLx |
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jmc |
1.3 |
c hFacZOpen= |
| 194 |
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c & ( _hFacW(i, j ,k,bi,bj)*rAw(i, j ,bi,bj) |
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c & +_hFacW(i,j-1,k,bi,bj)*rAw(i,j-1,bi,bj) ) |
| 196 |
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c & + ( _hFacS( i ,j,k,bi,bj)*rAs( i ,j,bi,bj) |
| 197 |
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c & +_hFacS(i-1,j,k,bi,bj)*rAs(i-1,j,bi,bj) ) |
| 198 |
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c hFacZ(i,j) = 0.25 _d 0 * hFacZOpen*recip_rAz(i,j,bi,bj) |
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hFacZOpen= |
| 200 |
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& ( _hFacW(i, j ,k,bi,bj) |
| 201 |
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& +_hFacW(i,j-1,k,bi,bj) ) |
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& + ( _hFacS( i ,j,k,bi,bj) |
| 203 |
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& +_hFacS(i-1,j,k,bi,bj) ) |
| 204 |
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hFacZ(i,j) = 0.25 _d 0 * hFacZOpen |
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ENDDO |
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ENDDO |
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ELSEIF ( hZoption.EQ.1 ) THEN |
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jmc |
1.7 |
DO j=2-OLy,sNy+OLy |
| 209 |
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DO i=2-OLx,sNx+OLx |
| 210 |
jmc |
1.3 |
c hFacZOpen=MIN( |
| 211 |
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c & _hFacW(i, j ,k,bi,bj)*rAw(i, j ,bi,bj) |
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c & + _hFacW(i,j-1,k,bi,bj)*rAw(i,j-1,bi,bj) |
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c & , _hFacS( i ,j,k,bi,bj)*rAs( i ,j,bi,bj) |
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c & + _hFacS(i-1,j,k,bi,bj)*rAs(i-1,j,bi,bj) |
| 215 |
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c & ) |
| 216 |
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c hFacZ(i,j) = 0.5 _d 0 * hFacZOpen*recip_rAz(i,j,bi,bj) |
| 217 |
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hFacZOpen=MIN( |
| 218 |
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& _hFacW(i, j ,k,bi,bj) |
| 219 |
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& + _hFacW(i,j-1,k,bi,bj) |
| 220 |
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& , _hFacS( i ,j,k,bi,bj) |
| 221 |
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& + _hFacS(i-1,j,k,bi,bj) |
| 222 |
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& ) |
| 223 |
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hFacZ(i,j) = 0.5 _d 0 * hFacZOpen |
| 224 |
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ENDDO |
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ENDDO |
| 226 |
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ELSE |
| 227 |
jmc |
1.7 |
DO j=2-OLy,sNy+OLy |
| 228 |
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DO i=2-OLx,sNx+OLx |
| 229 |
jmc |
1.3 |
hFacZOpen=MIN(_hFacW(i,j,k,bi,bj), |
| 230 |
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& _hFacW(i,j-1,k,bi,bj)) |
| 231 |
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hFacZOpen=MIN(_hFacS(i,j,k,bi,bj),hFacZOpen) |
| 232 |
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hFacZOpen=MIN(_hFacS(i-1,j,k,bi,bj),hFacZOpen) |
| 233 |
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hFacZ(i,j)=hFacZOpen |
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ENDDO |
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ENDDO |
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ENDIF |
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C---+----1----+----2----+----3----+----4 |
| 239 |
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C Special stuff for Cubed Sphere |
| 240 |
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IF ( useCubedSphereExchange .AND. hZoption.GE.1 ) THEN |
| 241 |
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| 242 |
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#ifdef ALLOW_EXCH2 |
| 243 |
jmc |
1.6 |
myTile = W2_myTileList(bi,bj) |
| 244 |
jmc |
1.3 |
myFace = exch2_myFace(myTile) |
| 245 |
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southWestCorner = exch2_isWedge(myTile).EQ.1 |
| 246 |
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& .AND. exch2_isSedge(myTile).EQ.1 |
| 247 |
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southEastCorner = exch2_isEedge(myTile).EQ.1 |
| 248 |
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& .AND. exch2_isSedge(myTile).EQ.1 |
| 249 |
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northEastCorner = exch2_isEedge(myTile).EQ.1 |
| 250 |
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& .AND. exch2_isNedge(myTile).EQ.1 |
| 251 |
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northWestCorner = exch2_isWedge(myTile).EQ.1 |
| 252 |
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& .AND. exch2_isNedge(myTile).EQ.1 |
| 253 |
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#else |
| 254 |
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myFace = bi |
| 255 |
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southWestCorner = .TRUE. |
| 256 |
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southEastCorner = .TRUE. |
| 257 |
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northWestCorner = .TRUE. |
| 258 |
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northEastCorner = .TRUE. |
| 259 |
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#endif /* ALLOW_EXCH2 */ |
| 260 |
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| 261 |
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| 262 |
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IF ( southWestCorner ) THEN |
| 263 |
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i=1 |
| 264 |
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j=1 |
| 265 |
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IF ( hZoption.EQ.1 ) THEN |
| 266 |
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hFacZOpen=MIN(_hFacW(i,j,k,bi,bj), |
| 267 |
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& _hFacW(i,j-1,k,bi,bj)) |
| 268 |
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hFacZOpen=MIN(_hFacS(i,j,k,bi,bj),hFacZOpen) |
| 269 |
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hFacZ(i,j)=hFacZOpen |
| 270 |
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ELSE |
| 271 |
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IF ( MOD(myFace,2).EQ.1 ) THEN |
| 272 |
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hFacZOpen= |
| 273 |
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& ( _hFacW(i,j-1,k,bi,bj) |
| 274 |
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& +_hFacS( i ,j,k,bi,bj) ) |
| 275 |
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& + _hFacW(i, j ,k,bi,bj) |
| 276 |
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ELSE |
| 277 |
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hFacZOpen= |
| 278 |
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& ( _hFacW(i, j ,k,bi,bj) |
| 279 |
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& +_hFacW(i,j-1,k,bi,bj) ) |
| 280 |
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& + _hFacS( i ,j,k,bi,bj) |
| 281 |
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ENDIF |
| 282 |
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hFacZ(i,j) = hFacZOpen / 3. _d 0 |
| 283 |
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ENDIF |
| 284 |
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ENDIF |
| 285 |
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| 286 |
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IF ( southEastCorner ) THEN |
| 287 |
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I=sNx+1 |
| 288 |
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J=1 |
| 289 |
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C- to get the same truncation, independent from the face Nb: |
| 290 |
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IF ( hZoption.EQ.1 ) THEN |
| 291 |
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hFacZOpen=MIN(_hFacW(i,j,k,bi,bj), |
| 292 |
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& _hFacW(i,j-1,k,bi,bj)) |
| 293 |
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hFacZOpen=MIN(_hFacS(i-1,j,k,bi,bj),hFacZOpen) |
| 294 |
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hFacZ(i,j)=hFacZOpen |
| 295 |
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ELSE |
| 296 |
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IF ( myFace.EQ.4 ) THEN |
| 297 |
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hFacZOpen= |
| 298 |
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& ( _hFacS(i-1,j,k,bi,bj) |
| 299 |
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& +_hFacW(i,j-1,k,bi,bj) ) |
| 300 |
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& + _hFacW(i, j ,k,bi,bj) |
| 301 |
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ELSEIF ( myFace.EQ.6 ) THEN |
| 302 |
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hFacZOpen= |
| 303 |
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& ( _hFacW(i,j-1,k,bi,bj) |
| 304 |
|
|
& +_hFacW(i, j ,k,bi,bj) ) |
| 305 |
|
|
& + _hFacS(i-1,j,k,bi,bj) |
| 306 |
|
|
ELSE |
| 307 |
|
|
hFacZOpen= |
| 308 |
|
|
& ( _hFacW(i, j ,k,bi,bj) |
| 309 |
|
|
& +_hFacS(i-1,j,k,bi,bj) ) |
| 310 |
|
|
& + _hFacW(i,j-1,k,bi,bj) |
| 311 |
|
|
ENDIF |
| 312 |
|
|
hFacZ(i,j) = hFacZOpen / 3. _d 0 |
| 313 |
|
|
ENDIF |
| 314 |
|
|
ENDIF |
| 315 |
adcroft |
1.1 |
|
| 316 |
jmc |
1.3 |
IF ( northWestCorner ) THEN |
| 317 |
|
|
i=1 |
| 318 |
|
|
j=sNy+1 |
| 319 |
|
|
C- to get the same truncation, independent from the face Nb: |
| 320 |
|
|
IF ( hZoption.EQ.1 ) THEN |
| 321 |
|
|
hFacZOpen=MIN(_hFacW(i,j,k,bi,bj), |
| 322 |
|
|
& _hFacW(i,j-1,k,bi,bj)) |
| 323 |
|
|
hFacZOpen=MIN(_hFacS(i,j,k,bi,bj),hFacZOpen) |
| 324 |
|
|
hFacZ(i,j)=hFacZOpen |
| 325 |
|
|
ELSE |
| 326 |
|
|
IF ( myFace.EQ.1 ) THEN |
| 327 |
|
|
hFacZOpen= |
| 328 |
|
|
& ( _hFacS( i ,j,k,bi,bj) |
| 329 |
|
|
& +_hFacW(i, j ,k,bi,bj) ) |
| 330 |
|
|
& + _hFacW(i,j-1,k,bi,bj) |
| 331 |
|
|
ELSEIF ( myFace.EQ.5 ) THEN |
| 332 |
|
|
hFacZOpen= |
| 333 |
|
|
& ( _hFacW(i, j ,k,bi,bj) |
| 334 |
|
|
& +_hFacW(i,j-1,k,bi,bj) ) |
| 335 |
|
|
& + _hFacS( i ,j,k,bi,bj) |
| 336 |
|
|
ELSE |
| 337 |
|
|
hFacZOpen= |
| 338 |
|
|
& ( _hFacW(i,j-1,k,bi,bj) |
| 339 |
|
|
& +_hFacS( i ,j,k,bi,bj) ) |
| 340 |
|
|
& + _hFacW(i, j ,k,bi,bj) |
| 341 |
|
|
ENDIF |
| 342 |
|
|
hFacZ(i,j) = hFacZOpen / 3. _d 0 |
| 343 |
|
|
ENDIF |
| 344 |
|
|
ENDIF |
| 345 |
|
|
|
| 346 |
|
|
IF ( northEastCorner ) THEN |
| 347 |
|
|
i=sNx+1 |
| 348 |
|
|
j=sNy+1 |
| 349 |
|
|
IF ( hZoption.EQ.1 ) THEN |
| 350 |
|
|
hFacZOpen=MIN(_hFacW(i,j,k,bi,bj), |
| 351 |
|
|
& _hFacW(i,j-1,k,bi,bj)) |
| 352 |
|
|
hFacZOpen=MIN(_hFacS(i-1,j,k,bi,bj),hFacZOpen) |
| 353 |
|
|
hFacZ(i,j)=hFacZOpen |
| 354 |
|
|
ELSE |
| 355 |
|
|
IF ( MOD(myFace,2).EQ.1 ) THEN |
| 356 |
|
|
hFacZOpen= |
| 357 |
|
|
& ( _hFacW(i,j-1,k,bi,bj) |
| 358 |
|
|
& +_hFacW(i, j ,k,bi,bj) ) |
| 359 |
|
|
& + _hFacS(i-1,j,k,bi,bj) |
| 360 |
|
|
ELSE |
| 361 |
|
|
hFacZOpen= |
| 362 |
|
|
& ( _hFacW(i, j ,k,bi,bj) |
| 363 |
|
|
& +_hFacS(i-1,j,k,bi,bj) ) |
| 364 |
|
|
& + _hFacW(i,j-1,k,bi,bj) |
| 365 |
|
|
ENDIF |
| 366 |
|
|
hFacZ(i,j) = hFacZOpen / 3. _d 0 |
| 367 |
|
|
ENDIF |
| 368 |
|
|
ENDIF |
| 369 |
|
|
|
| 370 |
|
|
ENDIF |
| 371 |
|
|
C---+----1----+----2----+----3----+----4 |
| 372 |
|
|
|
| 373 |
|
|
C-- Calculate reciprol: |
| 374 |
jmc |
1.7 |
DO j=1-OLy,sNy+OLy |
| 375 |
|
|
DO i=1-OLx,sNx+OLx |
| 376 |
adcroft |
1.1 |
IF (hFacZ(i,j).EQ.0.) THEN |
| 377 |
jmc |
1.3 |
r_hFacZ(i,j) = 0. |
| 378 |
adcroft |
1.1 |
ELSE |
| 379 |
jmc |
1.3 |
r_hFacZ(i,j) = 1. _d 0/hFacZ(i,j) |
| 380 |
adcroft |
1.1 |
ENDIF |
| 381 |
|
|
ENDDO |
| 382 |
|
|
ENDDO |
| 383 |
jmc |
1.3 |
|
| 384 |
|
|
C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
| 385 |
heimbach |
1.2 |
#endif /* ALLOW_DEPTH_CONTROL */ |
| 386 |
adcroft |
1.1 |
|
| 387 |
|
|
RETURN |
| 388 |
|
|
END |
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