/[MITgcm]/MITgcm/model/src/calc_oce_mxlayer.F
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revision 1.3 by jmc, Mon Aug 11 22:25:52 2008 UTC revision 1.8 by dimitri, Fri Oct 16 17:27:33 2009 UTC
# Line 24  C     == Global variables == Line 24  C     == Global variables ==
24  #include "EEPARAMS.h"  #include "EEPARAMS.h"
25  #include "PARAMS.h"  #include "PARAMS.h"
26  #include "GRID.h"  #include "GRID.h"
 #include "SURFACE.h"  
27  #include "DYNVARS.h"  #include "DYNVARS.h"
28  #ifdef ALLOW_GMREDI  #ifdef ALLOW_GMREDI
29  # include "GMREDI.h"  # include "GMREDI.h"
# Line 57  C     i,j :: Loop counters Line 56  C     i,j :: Loop counters
56        INTEGER i,j,k        INTEGER i,j,k
57        LOGICAL calcMixLayerDepth        LOGICAL calcMixLayerDepth
58        INTEGER method        INTEGER method
59        _RL     dRhoSmall, rhoBigNb        _RL     rhoBigNb
60        _RL     rhoMxL(1-OLx:sNx+OLx,1-OLy:sNy+OLy)        _RL     rhoMxL(1-OLx:sNx+OLx,1-OLy:sNy+OLy)
61        _RL     rhoKm1(1-OLx:sNx+OLx,1-OLy:sNy+OLy)        _RL     rhoKm1(1-OLx:sNx+OLx,1-OLy:sNy+OLy)
62        _RL     rhoLoc(1-OLx:sNx+OLx,1-OLy:sNy+OLy)        _RL     rhoLoc(1-OLx:sNx+OLx,1-OLy:sNy+OLy)
# Line 66  CEOP Line 65  CEOP
65    
66        calcMixLayerDepth = .FALSE.        calcMixLayerDepth = .FALSE.
67  #ifdef ALLOW_GMREDI  #ifdef ALLOW_GMREDI
68        IF ( useGMRedi ) calcMixLayerDepth = GM_taper_scheme.EQ.'fm07'        IF ( useGMRedi ) THEN
69           IF ( .NOT.useKPP ) calcMixLayerDepth = GM_taper_scheme.EQ.'fm07'
70          ENDIF
71  #endif  #endif
72  #ifdef ALLOW_DIAGNOSTICS  #ifdef ALLOW_DIAGNOSTICS
73        IF ( useDiagnostics.AND. .NOT.calcMixLayerDepth ) THEN        IF ( useDiagnostics.AND. .NOT.calcMixLayerDepth ) THEN
# Line 86  C--   First method : Line 87  C--   First method :
87  C     where the potential density (ref.lev=surface) is larger than  C     where the potential density (ref.lev=surface) is larger than
88  C       surface density plus Delta_Rho = hMixCriteria * Alpha(surf)  C       surface density plus Delta_Rho = hMixCriteria * Alpha(surf)
89  C     = density of water which is -hMixCriteria colder than surface water  C     = density of water which is -hMixCriteria colder than surface water
90    C     (see Kara, Rochford, and Hurlburt JGR 2000 for default criterion)
91    
92  c       hMixCriteria  = -0.8 _d 0  c       hMixCriteria  = -0.8 _d 0
93          dRhoSmall = 1. _d -6  c       dRhoSmall = 1. _d -6
94          rhoBigNb  = rhoConst*1. _d 10          rhoBigNb  = rhoConst*1. _d 10
95          CALL FIND_ALPHA(          CALL FIND_ALPHA(
96       I            bi, bj, 1-OLx, sNx+OLx, 1-OLy, sNy+OLy, 1, 1,       I            bi, bj, 1-OLx, sNx+OLx, 1-OLy, sNy+OLy, 1, 1,
# Line 135  C--   Second method : Line 137  C--   Second method :
137  C     where the local stratification exceed the mean stratification above  C     where the local stratification exceed the mean stratification above
138  C     (from surface down to here) by factor hMixCriteria  C     (from surface down to here) by factor hMixCriteria
139    
140  c       hMixCriteria  = 2. _d 0  c       hMixCriteria  = 1.5 _d 0
141  C-Note: dRhoSmall is hard coded for now but should become run-time parameter  c       dRhoSmall = 1. _d -2
         dRhoSmall = 1. _d -2  
142          DO j=1-Oly,sNy+Oly          DO j=1-Oly,sNy+Oly
143           DO i=1-Olx,sNx+Olx           DO i=1-Olx,sNx+Olx
144             IF ( klowC(i,j,bi,bj) .GT. 0 ) THEN             IF ( klowC(i,j,bi,bj) .GT. 0 ) THEN
# Line 186  C-    potential density (reference level Line 187  C-    potential density (reference level
187          STOP 'S/R CALC_OCE_MXLAYER: invalid method'          STOP 'S/R CALC_OCE_MXLAYER: invalid method'
188         ENDIF         ENDIF
189    
190           IF ( hMixSmooth .GT. 0. _d 0 ) THEN
191            tmpFac = (1. _d 0 - hMixSmooth ) / 4. _d 0
192            DO j=1-Oly+1,sNy+Oly-1
193             DO i=1-Olx+1,sNx+Olx-1
194                rhoLoc(i,j)=(hMixSmooth *   hMixLayer(i,j,bi,bj)   +
195         &                       tmpFac * ( hMixLayer(i-1,j,bi,bj) +
196         &                                  hMixLayer(i+1,j,bi,bj) +
197         &                                  hMixLayer(i,j-1,bi,bj) +
198         &                                  hMixLayer(i,j+1,bi,bj) )
199         &                  )
200         &                 /(hMixSmooth +
201         &                       tmpFac * ( maskC(i-1,j,1,bi,bj) +
202         &                                  maskC(i+1,j,1,bi,bj) +
203         &                                  maskC(i,j-1,1,bi,bj) +
204         &                                  maskC(i,j+1,1,bi,bj) )
205         &                  ) * maskC(i,j,1,bi,bj)
206             ENDDO
207            ENDDO
208            DO j=1-Oly+1,sNy+Oly-1
209             DO i=1-Olx+1,sNx+Olx-1
210                hMixLayer(i,j,bi,bj) = rhoLoc(i,j)
211             ENDDO
212            ENDDO
213           ENDIF
214    
215  #ifdef ALLOW_DIAGNOSTICS  #ifdef ALLOW_DIAGNOSTICS
216         IF ( useDiagnostics ) THEN         IF ( useDiagnostics ) THEN
217          CALL DIAGNOSTICS_FILL( hMixLayer, 'MXLDEPTH',          CALL DIAGNOSTICS_FILL( hMixLayer, 'MXLDEPTH',
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