/[MITgcm]/MITgcm/pkg/gmredi/gmredi_xtransport.F
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Annotation of /MITgcm/pkg/gmredi/gmredi_xtransport.F

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Revision 1.7 - (hide annotations) (download)
Sun Mar 24 02:33:16 2002 UTC (22 years, 3 months ago) by heimbach
Branch: MAIN
CVS Tags: checkpoint46l_post, checkpoint46g_pre, checkpoint46f_post, checkpoint46b_post, checkpoint46l_pre, checkpoint46d_pre, checkpoint45d_post, checkpoint46j_pre, checkpoint46a_post, checkpoint46j_post, checkpoint46k_post, checkpoint45a_post, checkpoint46e_pre, checkpoint45b_post, checkpoint46b_pre, checkpoint46c_pre, checkpoint46, checkpoint46h_pre, checkpoint46m_post, checkpoint46a_pre, checkpoint45c_post, checkpoint44h_post, checkpoint46g_post, checkpoint46i_post, checkpoint46c_post, checkpoint46e_post, checkpoint45, checkpoint46h_post, checkpoint46d_post
Changes since 1.6: +25 -2 lines
Various modifications to generate more stable adjoint of GMRedi.

1 adcroft 1.1
2     #include "GMREDI_OPTIONS.h"
3    
4     subroutine GMREDI_XTRANSPORT(
5     I iMin,iMax,jMin,jMax,bi,bj,K,
6     I xA,Tracer,
7     U df,
8     I myThid)
9     C /==========================================================\
10     C | o SUBROUTINE GMREDI_XTRANSPORT |
11     C | Add horizontal x transport terms from GM/Redi |
12     C | parameterization. |
13     C |==========================================================|
14     C \==========================================================/
15     IMPLICIT NONE
16    
17     C == GLobal variables ==
18     #include "SIZE.h"
19     #include "EEPARAMS.h"
20     #include "PARAMS.h"
21     #include "GRID.h"
22     #include "GMREDI.h"
23    
24 heimbach 1.7 #ifdef ALLOW_AUTODIFF_TAMC
25     #include "tamc.h"
26     #include "tamc_keys.h"
27     #endif /* ALLOW_AUTODIFF_TAMC */
28    
29 adcroft 1.1 C == Routine arguments ==
30     C iMin,iMax,jMin, - Range of points for which calculation
31     C jMax,bi,bj,k results will be set.
32     C xA - Area of X face
33     C Tracer - 3D Tracer field
34     C df - Diffusive flux component work array.
35     INTEGER iMin,iMax,jMin,jMax,bi,bj,k
36     _RS xA(1-OLx:sNx+OLx,1-OLy:sNy+OLy)
37     _RL Tracer(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr,nSx,nSy)
38     _RL df (1-OLx:sNx+OLx,1-OLy:sNy+OLy)
39     INTEGER myThid
40    
41     #ifdef ALLOW_GMREDI
42    
43     C == Local variables ==
44     C I, J - Loop counters
45     INTEGER I, J
46 jmc 1.5 INTEGER km1,kp1
47     _RL uTrans, maskp1, dTdz
48 adcroft 1.1
49 heimbach 1.7 #ifdef ALLOW_AUTODIFF_TAMC
50     act1 = bi - myBxLo(myThid)
51     max1 = myBxHi(myThid) - myBxLo(myThid) + 1
52     act2 = bj - myByLo(myThid)
53     max2 = myByHi(myThid) - myByLo(myThid) + 1
54     act3 = myThid - 1
55     max3 = nTx*nTy
56     act4 = ikey_dynamics - 1
57     ikey = (act1 + 1) + act2*max1
58     & + act3*max1*max2
59     & + act4*max1*max2*max3
60     kkey = (ikey-1)*Nr + k
61     #endif /* ALLOW_AUTODIFF_TAMC */
62    
63 heimbach 1.2 IF (useGMRedi) THEN
64 heimbach 1.7
65     #ifdef GM_NON_UNITY_DIAGONAL
66     #ifdef ALLOW_AUTODIFF_TAMC
67     CADJ STORE Kux(:,:,k,bi,bj) = comlev1_bibj_k, key=kkey, byte=isbyte
68     #endif
69     #endif
70 adcroft 1.1
71     C-- Area integrated zonal flux
72     DO j=jMin,jMax
73     DO i=iMin,iMax
74     df(i,j) = df(i,j)
75 jmc 1.5 & -xA(i,j)
76     #ifdef GM_NON_UNITY_DIAGONAL
77     & *Kux(i,j,k,bi,bj)
78     #else
79     & *(GM_isopycK
80 adcroft 1.1 #ifdef GM_VISBECK_VARIABLE_K
81 heimbach 1.3 & +0.5*(VisbeckK(i,j,bi,bj)+VisbeckK(i-1,j,bi,bj))
82 adcroft 1.1 #endif
83     & )
84 jmc 1.5 #endif /* GM_NON_UNITY_DIAGONAL */
85 adcroft 1.1 & *_recip_dxC(i,j,bi,bj)
86     & *(Tracer(i,j,k,bi,bj)-Tracer(i-1,j,k,bi,bj))
87     ENDDO
88     ENDDO
89 jmc 1.5
90     #ifdef GM_EXTRA_DIAGONAL
91     IF (GM_ExtraDiag) THEN
92     km1 = MAX(k-1,1)
93     kp1 = MIN(k+1,Nr)
94    
95     DO j=jMin,jMax
96     DO i=iMin,iMax
97    
98     C- Vertical gradients interpolated to U points
99     dTdz = 0.5*(
100     & +0.5*recip_drC(k)*
101     & ( maskC(i-1,j,k,bi,bj)*
102     & (Tracer(i-1,j,km1,bi,bj)-Tracer(i-1,j,k,bi,bj))
103     & +maskC( i ,j,k,bi,bj)*
104     & (Tracer( i ,j,km1,bi,bj)-Tracer( i ,j,k,bi,bj))
105     & )
106     & +0.5*recip_drC(kp1)*
107     & ( maskC(i-1,j,kp1,bi,bj)*
108     & (Tracer(i-1,j,k,bi,bj)-Tracer(i-1,j,kp1,bi,bj))
109     & +maskC( i ,j,kp1,bi,bj)*
110     & (Tracer( i ,j,k,bi,bj)-Tracer( i ,j,kp1,bi,bj))
111     & ) )
112    
113     C- Off-diagonal components of horizontal flux
114     df(i,j) = df(i,j) - xA(i,j)*Kuz(i,j,k,bi,bj)*dTdz
115    
116     ENDDO
117     ENDDO
118     ENDIF
119     #endif /* GM_EXTRA_DIAGONAL */
120    
121     #ifdef GM_BOLUS_ADVEC
122 jmc 1.6 IF (GM_AdvForm .AND. GM_AdvSeparate) THEN
123 jmc 1.5 kp1 = MIN(k+1,Nr)
124     maskp1 = 1.
125     IF (k.GE.Nr) maskp1 = 0.
126     DO j=jMin,jMax
127     DO i=iMin,iMax
128     uTrans = dyG(i,j,bi,bj)*( GM_PsiX(i,j,kp1,bi,bj)*maskp1
129     & -GM_PsiX(i,j,k,bi,bj) )
130     & *maskW(i,j,k,bi,bj)
131     df(i,j) = df(i,j)
132     & +uTrans*0.5*(Tracer(i,j,k,bi,bj)+Tracer(i-1,j,k,bi,bj))
133     ENDDO
134     ENDDO
135     ENDIF
136     #endif /* GM_BOLUS_ADVEC */
137 adcroft 1.1
138     ENDIF
139     #endif /* ALLOW_GMREDI */
140    
141     RETURN
142     END

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