1 |
C $Header: /u/gcmpack/MITgcm/pkg/ptracers/ptracers_calc_diff.F,v 1.5 2007/11/05 18:48:04 jmc Exp $ |
2 |
C $Name: $ |
3 |
|
4 |
#include "PTRACERS_OPTIONS.h" |
5 |
|
6 |
CBOP |
7 |
C !ROUTINE: PTRACERS_CALC_DIFF |
8 |
C !INTERFACE: |
9 |
SUBROUTINE PTRACERS_CALC_DIFF( |
10 |
I bi,bj,iMin,iMax,jMin,jMax,k, |
11 |
I maskUp, |
12 |
O KappaRtr, |
13 |
I myThid) |
14 |
|
15 |
C !DESCRIPTION: \bv |
16 |
C *==========================================================* |
17 |
C | SUBROUTINE PTRACERS_CALC_DIFF |
18 |
C | o Calculate net vertical diffusivity for passive tracers |
19 |
C *==========================================================* |
20 |
C | Combines spatially varying diffusion coefficients from |
21 |
C | KPP and/or GM and/or convective stability test. |
22 |
C *==========================================================* |
23 |
C \ev |
24 |
|
25 |
C !USES: |
26 |
IMPLICIT NONE |
27 |
C == GLobal variables == |
28 |
#include "SIZE.h" |
29 |
#include "EEPARAMS.h" |
30 |
#include "PARAMS.h" |
31 |
#include "GRID.h" |
32 |
#include "DYNVARS.h" |
33 |
#include "PTRACERS_SIZE.h" |
34 |
#include "PTRACERS_PARAMS.h" |
35 |
c #include "PTRACERS_FIELDS.h" |
36 |
#include "GAD.h" |
37 |
|
38 |
C !INPUT/OUTPUT PARAMETERS: |
39 |
C == Routine arguments == |
40 |
C bi, bj :: tile indices |
41 |
C iMin,iMax :: Range of points for which calculation is performed. |
42 |
C jMin,jMax :: Range of points for which calculation is performed. |
43 |
C maskUp :: land/water mask for Wvel points (above tracer level) |
44 |
C myThid :: Instance number for this innvocation of PTRACERS_CALC_DIFF |
45 |
C KappaRtr :: Net diffusivity for temperature |
46 |
C KappaRS :: Net diffusivity for salinity |
47 |
INTEGER bi,bj,iMin,iMax,jMin,jMax,k |
48 |
_RS maskUp(1-Olx:sNx+Olx,1-Oly:sNy+Oly) |
49 |
_RL KappaRtr(1-Olx:sNx+Olx,1-Oly:sNy+Oly,PTRACERS_num) |
50 |
INTEGER myThid |
51 |
|
52 |
C !LOCAL VARIABLES: |
53 |
C == Local variables == |
54 |
C I, J :: Loop counters |
55 |
INTEGER i,j,iTr,trIdentity |
56 |
_RL KbryanLewis79 |
57 |
#ifdef ALLOW_BL79_LAT_VARY |
58 |
_RL KbryanLewisEQ |
59 |
#endif |
60 |
CEOP |
61 |
|
62 |
KbryanLewis79=diffKrBL79surf+(diffKrBL79deep-diffKrBL79surf) |
63 |
& *(atan(-(rF(k)-diffKrBL79Ho)/diffKrBL79scl)/PI+0.5 _d 0) |
64 |
#ifdef ALLOW_BL79_LAT_VARY |
65 |
KbryanLewisEQ=diffKrBLEQsurf+(diffKrBLEQdeep-diffKrBLEQsurf) |
66 |
& *(atan(-(rF(k)-diffKrBLEQHo)/diffKrBLEQscl)/PI+0.5 _d 0) |
67 |
#endif |
68 |
|
69 |
C Loop over tracers |
70 |
DO iTr=1,PTRACERS_numInUse |
71 |
|
72 |
trIdentity = iTr + GAD_TR1 - 1 |
73 |
|
74 |
IF ( .NOT. PTRACERS_useKPP(iTr) ) THEN |
75 |
DO j = 1-Oly, sNy+Oly |
76 |
DO i = 1-Olx, sNx+Olx |
77 |
KappaRtr(i,j,iTr) = |
78 |
& IVDConvCount(i,j,k,bi,bj)*ivdc_kappa |
79 |
#if (defined ALLOW_3D_DIFFKR || \ |
80 |
(defined (ALLOW_AUTODIFF_TAMC) && defined (ALLOW_DIFFKR_CONTROL))) |
81 |
& + diffKr(i,j,k,bi,bj) |
82 |
#else |
83 |
& + PTRACERS_diffKrNr(k,iTr) |
84 |
#endif |
85 |
& + KbryanLewis79 |
86 |
#ifdef ALLOW_BL79_LAT_VARY |
87 |
& + (KbryanLewisEQ-KbryanLewis79)*BL79LatArray(i,j,bi,bj) |
88 |
#endif |
89 |
ENDDO |
90 |
ENDDO |
91 |
ENDIF |
92 |
|
93 |
#ifdef ALLOW_KPP |
94 |
IF ( PTRACERS_useKPP(iTr) ) THEN |
95 |
C-- Set vertical diffusivity contribution from KPP |
96 |
CALL KPP_CALC_DIFF_S( |
97 |
I bi,bj,iMin+1,iMax,jMin+1,jMax,k,1, |
98 |
O KappaRtr(1-Olx,1-Oly,iTr), |
99 |
I myThid) |
100 |
ENDIF |
101 |
#endif |
102 |
|
103 |
#ifdef ALLOW_GMREDI |
104 |
IF ( PTRACERS_useGMRedi(iTr) ) THEN |
105 |
CALL GMREDI_CALC_DIFF( |
106 |
I bi,bj,iMin,iMax,jMin,jMax,k,1, |
107 |
U KappaRtr(1-Olx,1-Oly,iTr), |
108 |
I trIdentity,myThid) |
109 |
ENDIF |
110 |
#endif |
111 |
|
112 |
#ifdef ALLOW_PP81 |
113 |
IF (usePP81) THEN |
114 |
CALL PP81_CALC_DIFF( |
115 |
I bi,bj,iMin+1,iMax,jMin+1,jMax,k,1, |
116 |
U KappaRtr(1-Olx,1-Oly,iTr), |
117 |
I myThid) |
118 |
ENDIF |
119 |
#endif |
120 |
|
121 |
#ifdef ALLOW_MY82 |
122 |
IF (useMY82) THEN |
123 |
CALL MY82_CALC_DIFF( |
124 |
I bi,bj,iMin+1,iMax,jMin+1,jMax,k,1, |
125 |
U KappaRtr(1-Olx,1-Oly,iTr), |
126 |
I myThid) |
127 |
ENDIF |
128 |
#endif |
129 |
|
130 |
#ifdef ALLOW_GGL90 |
131 |
IF (useGGL90) THEN |
132 |
CALL GGL90_CALC_DIFF( |
133 |
I bi,bj,iMin+1,iMax,jMin+1,jMax,k,1, |
134 |
U KappaRtr(1-Olx,1-Oly,iTr), |
135 |
I myThid) |
136 |
ENDIF |
137 |
#endif |
138 |
|
139 |
C- Apply mask to vertical diffusivity |
140 |
C jmc: don't have the impression that masking is needed |
141 |
C but could be removed later if it's the case. |
142 |
DO j = 1-Oly, sNy+Oly |
143 |
DO i = 1-Olx, sNx+Olx |
144 |
KappaRtr(i,j,iTr) = maskUp(i,j)*KappaRtr(i,j,iTr) |
145 |
ENDDO |
146 |
ENDDO |
147 |
|
148 |
C end of tracer loop |
149 |
ENDDO |
150 |
|
151 |
RETURN |
152 |
END |