/[MITgcm]/MITgcm/model/src/calc_3d_diffusivity.F
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Revision 1.6 - (hide annotations) (download)
Thu Apr 5 22:51:48 2007 UTC (17 years, 2 months ago) by dimitri
Branch: MAIN
Changes since 1.5: +9 -6 lines
Modified capability for 3D specification of background vertical diffusion
coefficient as per JM requests.  3D diffusion is now specified by
(i) #define ALLOW_3D_DIFFKR in CPP_OPTIONS.h and
(ii) specifying file diffKrFile in runtime "data" file that contains
     the 3D vertical diffusivity coefficients.

1 dimitri 1.6 C $Header: /u/gcmpack/MITgcm/model/src/calc_3d_diffusivity.F,v 1.5 2007/04/05 00:02:49 dimitri Exp $
2 jmc 1.1 C $Name: $
3    
4     #include "PACKAGES_CONFIG.h"
5     #include "CPP_OPTIONS.h"
6    
7     CBOP
8     C !ROUTINE: CALC_3D_DIFFUSIVITY
9     C !INTERFACE:
10     SUBROUTINE CALC_3D_DIFFUSIVITY(
11     I bi,bj,iMin,iMax,jMin,jMax,
12     I trIdentity, trUseGMRedi, trUseKPP,
13     O KappaRTr,
14     I myThid)
15    
16     C !DESCRIPTION: \bv
17     C *==========================================================*
18     C | SUBROUTINE CALC_3D_DIFFUSIVITY
19     C | o Calculate net (3D) vertical diffusivity for 1 tracer
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 jmc 1.3 #ifdef ALLOW_GENERIC_ADVDIFF
35 jmc 1.1 #include "GAD.h"
36 jmc 1.3 #endif
37 jmc 1.1 #ifdef ALLOW_PTRACERS
38     #include "PTRACERS_SIZE.h"
39     #include "PTRACERS.h"
40     #endif
41    
42     C !INPUT/OUTPUT PARAMETERS:
43     C == Routine arguments ==
44     C bi, bj :: tile indices
45     C iMin,iMax :: Range of points for which calculation is performed.
46     C jMin,jMax :: Range of points for which calculation is performed.
47     C trIdentity :: tracer identifier
48     C trUseGMRedi:: this tracer use GM-Redi
49     C trUseKPP :: this tracer use KPP
50     C myThid :: Instance number for this innvocation of CALC_3D_DIFFUSIVITY
51     C KappaRTr :: Net diffusivity for this tracer (trIdentity)
52     INTEGER bi,bj,iMin,iMax,jMin,jMax
53     INTEGER trIdentity
54     LOGICAL trUseGMRedi, trUseKPP
55     _RL KappaRTr(1-Olx:sNx+Olx,1-Oly:sNy+Oly,Nr)
56     INTEGER myThid
57    
58 jmc 1.3 #ifdef ALLOW_GENERIC_ADVDIFF
59 jmc 1.1 C !LOCAL VARIABLES:
60     C == Local variables ==
61     C i, j, k :: Loop counters
62     C iTr :: passive tracer index
63     C msgBuf :: message buffer
64     INTEGER i,j,k
65     _RL KbryanLewis79
66     CHARACTER*(MAX_LEN_MBUF) msgBuf
67 jmc 1.4 #ifdef ALLOW_PTRACERS
68     INTEGER iTr
69     #endif
70 jmc 1.1 CEOP
71    
72     IF ( trIdentity.EQ.GAD_TEMPERATURE) THEN
73    
74     DO k = 1,Nr
75 jmc 1.2 KbryanLewis79=diffKrBL79surf+(diffKrBL79deep-diffKrBL79surf)
76     & *( atan( -( rF(k)-diffKrBL79Ho )/diffKrBL79scl )/PI+0.5 _d 0)
77 jmc 1.1 DO j = 1-Oly,sNy+Oly
78     DO i = 1-Olx,sNx+Olx
79     KappaRTr(i,j,k) =
80     & IVDConvCount(i,j,k,bi,bj)*ivdc_kappa
81 dimitri 1.6 #if (defined ALLOW_3D_DIFFKR || \
82     (defined (ALLOW_AUTODIFF_TAMC) && defined (ALLOW_DIFFKR_CONTROL)))
83 jmc 1.1 & + diffKr(i,j,k,bi,bj)
84     #else
85 dimitri 1.6 & + diffKrNrT(k)
86 jmc 1.1 #endif
87     & + KbryanLewis79
88     ENDDO
89     ENDDO
90     ENDDO
91    
92     ELSEIF ( trIdentity.EQ.GAD_SALINITY) THEN
93    
94     DO k = 1,Nr
95 jmc 1.2 KbryanLewis79=diffKrBL79surf+(diffKrBL79deep-diffKrBL79surf)
96     & *( atan( -( rF(k)-diffKrBL79Ho )/diffKrBL79scl )/PI+0.5 _d 0)
97 jmc 1.1 DO j = 1-Oly, sNy+Oly
98     DO i = 1-Olx, sNx+Olx
99     KappaRTr(i,j,k) =
100     & IVDConvCount(i,j,k,bi,bj)*ivdc_kappa
101 dimitri 1.6 #if (defined ALLOW_3D_DIFFKR || \
102     (defined (ALLOW_AUTODIFF_TAMC) && defined (ALLOW_DIFFKR_CONTROL)))
103 jmc 1.1 & + diffKr(i,j,k,bi,bj)
104     #else
105 dimitri 1.6 & + diffKrNrS(k)
106 jmc 1.1 #endif
107     & + KbryanLewis79
108     ENDDO
109     ENDDO
110     ENDDO
111    
112     #ifdef ALLOW_PTRACERS
113     ELSEIF ( trIdentity.GE.GAD_TR1
114     & .AND. trIdentity.LT.GAD_TR1+PTRACERS_numInUse) THEN
115    
116     iTr = trIdentity - GAD_TR1 + 1
117     DO k = 1,Nr
118 jmc 1.2 KbryanLewis79=diffKrBL79surf+(diffKrBL79deep-diffKrBL79surf)
119     & *( atan( -( rF(k)-diffKrBL79Ho )/diffKrBL79scl )/PI+0.5 _d 0)
120 jmc 1.1 DO j = 1-Oly, sNy+Oly
121     DO i = 1-Olx, sNx+Olx
122     KappaRTr(i,j,k) =
123     & IVDConvCount(i,j,k,bi,bj)*ivdc_kappa
124 dimitri 1.6 #if (defined ALLOW_3D_DIFFKR || \
125     (defined (ALLOW_AUTODIFF_TAMC) && defined (ALLOW_DIFFKR_CONTROL)))
126 jmc 1.1 & + diffKr(i,j,k,bi,bj)
127     #else
128     & + PTRACERS_diffKrNr(k,iTr)
129     #endif
130     & + KbryanLewis79
131     ENDDO
132     ENDDO
133     ENDDO
134     #endif /* ALLOW_PTRACERS */
135    
136     ELSE
137     WRITE(msgBuf,'(A,I4)')
138     & ' CALC_3D_DIFFUSIVITY: Invalid tracer Id: ',trIdentity
139     CALL PRINT_ERROR(msgBuf, myThid)
140     STOP 'ABNORMAL END: S/R CALC_3D_DIFFUSIVITY'
141     ENDIF
142    
143     C-- Add physical pacakge contributions:
144    
145     #ifdef ALLOW_GMREDI
146     IF (trUseGMRedi) THEN
147     CALL GMREDI_CALC_DIFF(
148     I bi,bj,iMin,iMax,jMin,jMax,0,Nr,
149     U KappaRTr,
150     I myThid)
151     ENDIF
152     #endif
153    
154     #ifdef ALLOW_KPP
155     IF (trUseKPP) THEN
156     IF (trIdentity.EQ.GAD_TEMPERATURE) THEN
157     CALL KPP_CALC_DIFF_T(
158 jmc 1.2 I bi,bj,iMin,iMax,jMin,jMax,0,Nr,
159 jmc 1.1 U KappaRTr,
160     I myThid)
161     ELSE
162     CALL KPP_CALC_DIFF_S(
163 jmc 1.2 I bi,bj,iMin,iMax,jMin,jMax,0,Nr,
164 jmc 1.1 U KappaRTr,
165     I myThid)
166     ENDIF
167     ENDIF
168     #endif
169    
170     #ifdef ALLOW_PP81
171     IF (usePP81) THEN
172     CALL PP81_CALC_DIFF(
173 jmc 1.2 I bi,bj,iMin,iMax,jMin,jMax,0,Nr,
174 jmc 1.1 U KappaRTr,
175     I myThid)
176     ENDIF
177     #endif
178    
179     #ifdef ALLOW_MY82
180     IF (useMY82) THEN
181     CALL MY82_CALC_DIFF(
182 jmc 1.2 I bi,bj,iMin,iMax,jMin,jMax,0,Nr,
183 jmc 1.1 U KappaRTr,
184     I myThid)
185     ENDIF
186     #endif
187    
188     #ifdef ALLOW_GGL90
189     IF (useGGL90) THEN
190     CALL GGL90_CALC_DIFF(
191 jmc 1.2 I bi,bj,iMin,iMax,jMin,jMax,0,Nr,
192 jmc 1.1 O KappaRTr,
193     I myThid)
194     ENDIF
195     #endif
196    
197     C- Apply mask to vertical diffusivity
198     C jmc: don't have the impression that masking is needed
199     C but could be removed later if it's the case.
200     c DO j = 1-Oly, sNy+Oly
201     c DO i = 1-Olx, sNx+Olx
202     c KappaRTr(i,j,k) = maskUp(i,j)*KappaRTr(i,j,k)
203     c ENDDO
204     c ENDDO
205    
206 jmc 1.3 #endif /* ALLOW_GENERIC_ADVDIFF */
207    
208 jmc 1.1 RETURN
209     END

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