| 1 |
C $Header: /u/gcmpack/MITgcm/model/src/calc_diffusivity.F,v 1.28 2007/04/05 22:51:48 dimitri Exp $ |
| 2 |
C $Name: $ |
| 3 |
|
| 4 |
#include "PACKAGES_CONFIG.h" |
| 5 |
#include "CPP_OPTIONS.h" |
| 6 |
|
| 7 |
CBOP |
| 8 |
C !ROUTINE: CALC_DIFFUSIVITY |
| 9 |
C !INTERFACE: |
| 10 |
SUBROUTINE CALC_DIFFUSIVITY( |
| 11 |
I bi,bj,iMin,iMax,jMin,jMax,k, |
| 12 |
I maskUp, |
| 13 |
O KappaRT,KappaRS, |
| 14 |
I myThid) |
| 15 |
|
| 16 |
C !DESCRIPTION: \bv |
| 17 |
C *==========================================================* |
| 18 |
C | SUBROUTINE CALC_DIFFUSIVITY |
| 19 |
C | o Calculate net vertical diffusivity |
| 20 |
C *==========================================================* |
| 21 |
C | Combines spatially varying diffusion coefficients from |
| 22 |
C | KPP and/or GM and/or convective stability test. |
| 23 |
C *==========================================================* |
| 24 |
C \ev |
| 25 |
|
| 26 |
C !USES: |
| 27 |
IMPLICIT NONE |
| 28 |
C == GLobal variables == |
| 29 |
#include "SIZE.h" |
| 30 |
#include "EEPARAMS.h" |
| 31 |
#include "PARAMS.h" |
| 32 |
#include "DYNVARS.h" |
| 33 |
#include "GRID.h" |
| 34 |
|
| 35 |
C !INPUT/OUTPUT PARAMETERS: |
| 36 |
C == Routine arguments == |
| 37 |
C bi, bj, :: tile indices |
| 38 |
C iMin, :: Range of points for which calculation is performed. |
| 39 |
C iMax, |
| 40 |
C jMin, |
| 41 |
C jMax |
| 42 |
C maskUp :: land/water mask for Wvel points (above tracer level) |
| 43 |
C myThid :: Instance number for this innvocation of CALC_DIFFUSIVITY |
| 44 |
C KappaRT :: Net diffusivity for temperature |
| 45 |
C KappaRS :: Net diffusivity for salinity |
| 46 |
INTEGER bi,bj,iMin,iMax,jMin,jMax,K |
| 47 |
_RS maskUp(1-Olx:sNx+Olx,1-Oly:sNy+Oly) |
| 48 |
_RL KappaRT(1-Olx:sNx+Olx,1-Oly:sNy+Oly) |
| 49 |
_RL KappaRS(1-Olx:sNx+Olx,1-Oly:sNy+Oly) |
| 50 |
INTEGER myThid |
| 51 |
|
| 52 |
C !LOCAL VARIABLES: |
| 53 |
C == Local variables == |
| 54 |
C I, J :: Loop counters |
| 55 |
INTEGER i,j |
| 56 |
_RL KbryanLewis79, KbryanLewisHL, KbryanLewisEQ |
| 57 |
CEOP |
| 58 |
|
| 59 |
KbryanLewisHL=diffKrBL79surf+(diffKrBL79deep-diffKrBL79surf) |
| 60 |
& *( atan( -( rF(k)-diffKrBL79Ho )/diffKrBL79scl )/PI+0.5 _d 0) |
| 61 |
|
| 62 |
KbryanLewisEQ=diffKrBLEQsurf+(diffKrBLEQdeep-diffKrBLEQsurf) |
| 63 |
& *( atan( -( rF(k)-diffKrBLEQHo )/diffKrBLEQscl )/PI+0.5 _d 0) |
| 64 |
|
| 65 |
DO j = 1-Oly, sNy+Oly |
| 66 |
IF ( abs(YC(i,j,bi,bj)) .GT. KbryanLewisLatTransition ) THEN |
| 67 |
KbryanLewis79 = KbryanLewisHL |
| 68 |
ELSE |
| 69 |
KbryanLewis79 = KbryanLewisHL - (KbryanLewisHL-KbryanLewisEQ) * |
| 70 |
& (1+cos(YC(i,j,bi,bj)*pi/KbryanLewisLatTransition)) / 2 |
| 71 |
ENDIF |
| 72 |
DO i = 1-Olx, sNx+Olx |
| 73 |
KappaRT(i,j) = |
| 74 |
& IVDConvCount(i,j,k,bi,bj)*ivdc_kappa |
| 75 |
#if (defined ALLOW_3D_DIFFKR || \ |
| 76 |
(defined (ALLOW_AUTODIFF_TAMC) && defined (ALLOW_DIFFKR_CONTROL))) |
| 77 |
& + diffKr(i,j,k,bi,bj) |
| 78 |
#else |
| 79 |
& + diffKrNrT(k) |
| 80 |
#endif |
| 81 |
& + KbryanLewis79 |
| 82 |
ENDDO |
| 83 |
ENDDO |
| 84 |
|
| 85 |
DO j = 1-Oly, sNy+Oly |
| 86 |
IF ( abs(YC(i,j,bi,bj)) .GT. KbryanLewisLatTransition ) THEN |
| 87 |
KbryanLewis79 = KbryanLewisHL |
| 88 |
ELSE |
| 89 |
KbryanLewis79 = KbryanLewisHL - (KbryanLewisHL-KbryanLewisEQ) * |
| 90 |
& (1+cos(YC(i,j,bi,bj)*pi/KbryanLewisLatTransition)) / 2 |
| 91 |
ENDIF |
| 92 |
DO i = 1-Olx, sNx+Olx |
| 93 |
KappaRS(i,j) = |
| 94 |
& IVDConvCount(i,j,k,bi,bj)*ivdc_kappa |
| 95 |
#if (defined ALLOW_3D_DIFFKR || \ |
| 96 |
(defined (ALLOW_AUTODIFF_TAMC) && defined (ALLOW_DIFFKR_CONTROL))) |
| 97 |
& + diffKr(i,j,k,bi,bj) |
| 98 |
#else |
| 99 |
& + diffKrNrS(k) |
| 100 |
#endif |
| 101 |
& + KbryanLewis79 |
| 102 |
ENDDO |
| 103 |
ENDDO |
| 104 |
|
| 105 |
#ifdef ALLOW_GMREDI |
| 106 |
IF (useGMRedi) THEN |
| 107 |
CALL GMREDI_CALC_DIFF( |
| 108 |
I bi,bj,iMin,iMax,jMin,jMax,k,1, |
| 109 |
U KappaRT, |
| 110 |
I myThid) |
| 111 |
CALL GMREDI_CALC_DIFF( |
| 112 |
I bi,bj,iMin,iMax,jMin,jMax,k,1, |
| 113 |
U KappaRS, |
| 114 |
I myThid) |
| 115 |
ENDIF |
| 116 |
#endif |
| 117 |
|
| 118 |
#ifdef ALLOW_KPP |
| 119 |
IF (useKPP) THEN |
| 120 |
CALL KPP_CALC_DIFF_T( |
| 121 |
I bi,bj,iMin+1,iMax,jMin+1,jMax,k,1, |
| 122 |
U KappaRT, |
| 123 |
I myThid) |
| 124 |
CALL KPP_CALC_DIFF_S( |
| 125 |
I bi,bj,iMin+1,iMax,jMin+1,jMax,k,1, |
| 126 |
U KappaRS, |
| 127 |
I myThid) |
| 128 |
ENDIF |
| 129 |
#endif |
| 130 |
|
| 131 |
#ifdef ALLOW_PP81 |
| 132 |
IF (usePP81) THEN |
| 133 |
CALL PP81_CALC_DIFF( |
| 134 |
I bi,bj,iMin+1,iMax,jMin+1,jMax,k,1, |
| 135 |
U KappaRT, |
| 136 |
I myThid) |
| 137 |
CALL PP81_CALC_DIFF( |
| 138 |
I bi,bj,iMin+1,iMax,jMin+1,jMax,k,1, |
| 139 |
U KappaRS, |
| 140 |
I myThid) |
| 141 |
ENDIF |
| 142 |
#endif |
| 143 |
|
| 144 |
#ifdef ALLOW_MY82 |
| 145 |
IF (useMY82) THEN |
| 146 |
CALL MY82_CALC_DIFF( |
| 147 |
I bi,bj,iMin+1,iMax,jMin+1,jMax,k,1, |
| 148 |
U KappaRT, |
| 149 |
I myThid) |
| 150 |
CALL MY82_CALC_DIFF( |
| 151 |
I bi,bj,iMin+1,iMax,jMin+1,jMax,k,1, |
| 152 |
U KappaRS, |
| 153 |
I myThid) |
| 154 |
ENDIF |
| 155 |
#endif |
| 156 |
|
| 157 |
#ifdef ALLOW_GGL90 |
| 158 |
IF (useGGL90) THEN |
| 159 |
CALL GGL90_CALC_DIFF( |
| 160 |
I bi,bj,iMin+1,iMax,jMin+1,jMax,k,1, |
| 161 |
O KappaRT, |
| 162 |
I myThid) |
| 163 |
CALL GGL90_CALC_DIFF( |
| 164 |
I bi,bj,iMin+1,iMax,jMin+1,jMax,k,1, |
| 165 |
O KappaRS, |
| 166 |
I myThid) |
| 167 |
ENDIF |
| 168 |
#endif |
| 169 |
|
| 170 |
C- Apply mask to vertical diffusivity |
| 171 |
C jmc: don't have the impression that masking is needed |
| 172 |
C but could be removed later if it's the case. |
| 173 |
DO j = 1-Oly, sNy+Oly |
| 174 |
DO i = 1-Olx, sNx+Olx |
| 175 |
KappaRT(i,j) = maskUp(i,j)*KappaRT(i,j) |
| 176 |
KappaRS(i,j) = maskUp(i,j)*KappaRS(i,j) |
| 177 |
ENDDO |
| 178 |
ENDDO |
| 179 |
|
| 180 |
RETURN |
| 181 |
END |
Parent Directory
| 
Revision Log
| 
Revision Graph