/[MITgcm]/MITgcm/model/src/update_sigma.F
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Revision 1.1 - (show annotations) (download)
Sat Sep 11 21:27:13 2010 UTC (13 years, 8 months ago) by jmc
Branch: MAIN
CVS Tags: checkpoint64q, checkpoint64p, checkpoint64s, checkpoint64r, checkpoint64u, checkpoint64t, checkpoint64i, checkpoint64h, checkpoint64k, checkpoint64j, checkpoint64m, checkpoint64l, checkpoint64o, checkpoint64n, checkpoint64a, checkpoint64c, checkpoint64b, checkpoint64e, checkpoint64d, checkpoint64g, checkpoint64f, checkpoint63p, checkpoint63q, checkpoint63r, checkpoint63s, checkpoint63l, checkpoint63m, checkpoint63n, checkpoint63o, checkpoint63h, checkpoint63i, checkpoint63j, checkpoint63k, checkpoint63d, checkpoint63e, checkpoint63f, checkpoint63g, checkpoint63a, checkpoint63b, checkpoint63c, checkpoint64, checkpoint63, checkpoint62k, checkpoint62o, checkpoint62n, checkpoint62m, checkpoint62l, checkpoint62s, checkpoint62r, checkpoint62q, checkpoint62p, checkpoint62w, checkpoint62v, checkpoint62u, checkpoint62t, checkpoint62z, checkpoint62y, checkpoint62x
sigma (and hybrid-sigma) coordinate code for non-linear free-surface

1 C $Header: /u/gcmpack/MITgcm/model/src/update_r_star.F,v 1.7 2008/08/12 22:42:33 jmc Exp $
2 C $Name: $
3
4 #include "PACKAGES_CONFIG.h"
5 #include "CPP_OPTIONS.h"
6
7 CBOP
8 C !ROUTINE: UPDATE_SIGMA
9 C !INTERFACE:
10 SUBROUTINE UPDATE_SIGMA( etaHc, myTime, myIter, myThid )
11 C !DESCRIPTION: \bv
12 C *==========================================================*
13 C | SUBROUTINE UPDATE_SIGMA
14 C | o Update the thickness fractions (hFacC,W,S)
15 C | according to the surface r-position = Non-Linear FrSurf
16 C *==========================================================*
17 C \ev
18
19 C !USES:
20 IMPLICIT NONE
21 C == Global variables
22 #include "SIZE.h"
23 #include "EEPARAMS.h"
24 #include "PARAMS.h"
25 c #include "DYNVARS.h"
26 #include "GRID.h"
27 #include "SURFACE.h"
28 #ifdef ALLOW_AUTODIFF_TAMC
29 # include "tamc.h"
30 # include "tamc_keys.h"
31 #endif
32
33 C !INPUT/OUTPUT PARAMETERS:
34 C == Routine arguments ==
35 C etaHc :: surface r-anomaly at grid cell center
36 C myTime :: Current time in simulation
37 C myIter :: Current iteration number in simulation
38 C myThid :: my Thread Id. number
39 _RL etaHc(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
40 _RL myTime
41 INTEGER myIter
42 INTEGER myThid
43
44 #ifdef NONLIN_FRSURF
45 c#ifndef DISABLE_SIGMA_CODE
46 C !LOCAL VARIABLES:
47 C Local variables
48 C bi, bj :: tile indices
49 C i, j, k :: Loop counters
50 C rEmpty :: empty column r-position
51 C rFullDepth :: maximum depth of a full column
52 C tmpFld :: Temporary array used to compute & write Total Depth
53 C msgBuf :: Informational/error message buffer
54 INTEGER bi, bj
55 INTEGER i, j, k
56 _RL rFullDepth
57 _RL tmpFld(1-OLx:sNx+OLx,1-OLy:sNy+OLy)
58 c _RL hFactmp
59 c CHARACTER*(MAX_LEN_MBUF) msgBuf
60 CEOP
61
62 rFullDepth = rF(1)-rF(Nr+1)
63
64 DO bj=myByLo(myThid), myByHi(myThid)
65 DO bi=myBxLo(myThid), myBxHi(myThid)
66
67 c#ifdef ALLOW_AUTODIFF_TAMC
68 c act1 = bi - myBxLo(myThid)
69 c max1 = myBxHi(myThid) - myBxLo(myThid) + 1
70 c act2 = bj - myByLo(myThid)
71 c max2 = myByHi(myThid) - myByLo(myThid) + 1
72 c act3 = myThid - 1
73 c max3 = nTx*nTy
74 c act4 = ikey_dynamics - 1
75 c idynkey = (act1 + 1) + act2*max1
76 c & + act3*max1*max2
77 c & + act4*max1*max2*max3
78 c#endif /* ALLOW_AUTODIFF_TAMC */
79
80 C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----|
81
82 c#ifdef ALLOW_OBCS
83 c# ifdef ALLOW_AUTODIFF_TAMC
84 cCADJ STORE rStarFacC(:,:,bi,bj) =
85 cCADJ & comlev1_bibj, key = idynkey, byte = isbyte
86 cCADJ STORE rStarFacS(:,:,bi,bj) =
87 cCADJ & comlev1_bibj, key = idynkey, byte = isbyte
88 cCADJ STORE rStarFacW(:,:,bi,bj) =
89 cCADJ & comlev1_bibj, key = idynkey, byte = isbyte
90 c# endif /* ALLOW_AUTODIFF_TAMC */
91 cC-- Apply OBC to rStar_Factor_W,S before updating hFacW,S
92 c IF (useOBCS) THEN
93 c CALL OBCS_APPLY_R_STAR(
94 c I bi, bj,
95 c U rStarFacC, rStarFacW, rStarFacS,
96 c I myTime, myIter, myThid )
97 c ENDIF
98 c#endif /* ALLOW_OBCS */
99
100 C-- Update the fractional thickness hFacC (& "recip_hFac") :
101 DO j=1-Oly,sNy+Oly
102 DO i=1-Olx,sNx+Olx
103 IF ( kSurfC(i,j,bi,bj).LE.Nr ) THEN
104 tmpFld(i,j) = etaHc(i,j,bi,bj)
105 & + ( Ro_surf(i,j,bi,bj)-R_low(i,j,bi,bj) )
106 ELSE
107 tmpFld(i,j) = rFullDepth
108 ENDIF
109 ENDDO
110 ENDDO
111 DO k=1,Nr
112 DO j=1-Oly,sNy+Oly
113 DO i=1-Olx,sNx+Olx
114 hFacC(i,j,k,bi,bj) = maskC(i,j,k,bi,bj)
115 & *( dAHybSigF(k)*rFullDepth
116 & +dBHybSigF(k)*tmpFld(i,j)
117 & )*recip_drF(k)
118 recip_hFacC(i,j,k,bi,bj) = maskC(i,j,k,bi,bj)*drF(k)
119 & /( dAHybSigF(k)*rFullDepth
120 & +dBHybSigF(k)*tmpFld(i,j)
121 & )
122 ENDDO
123 ENDDO
124 ENDDO
125
126 C-- Update the fractional thickness hFacW (& "recip_hFac") :
127 DO j=1-Oly,sNy+Oly
128 DO i=1-Olx,sNx+Olx
129 IF ( kSurfW(i,j,bi,bj).LE.Nr ) THEN
130 tmpFld(i,j) = etaHw(i,j,bi,bj)
131 & + ( rSurfW(i,j,bi,bj)-rLowW(i,j,bi,bj) )
132 ELSE
133 tmpFld(i,j) = rFullDepth
134 ENDIF
135 ENDDO
136 ENDDO
137 DO k=1,Nr
138 DO j=1-Oly,sNy+Oly
139 DO i=1-Olx,sNx+Olx
140 hFacW(i,j,k,bi,bj) = maskW(i,j,k,bi,bj)
141 & *( dAHybSigF(k)*rFullDepth
142 & +dBHybSigF(k)*tmpFld(i,j)
143 & )*recip_drF(k)
144 recip_hFacW(i,j,k,bi,bj) = maskW(i,j,k,bi,bj)*drF(k)
145 & /( dAHybSigF(k)*rFullDepth
146 & +dBHybSigF(k)*tmpFld(i,j)
147 & )
148 ENDDO
149 ENDDO
150 ENDDO
151
152 C-- Update the fractional thickness hFacS (& "recip_hFac") :
153 DO j=1-Oly,sNy+Oly
154 DO i=1-Olx,sNx+Olx
155 IF ( kSurfS(i,j,bi,bj).LE.Nr ) THEN
156 tmpFld(i,j) = etaHs(i,j,bi,bj)
157 & + ( rSurfS(i,j,bi,bj)-rLowS(i,j,bi,bj) )
158 ELSE
159 tmpFld(i,j) = rFullDepth
160 ENDIF
161 ENDDO
162 ENDDO
163 DO k=1,Nr
164 DO j=1-Oly,sNy+Oly
165 DO i=1-Olx,sNx+Olx
166 hFacS(i,j,k,bi,bj) = maskS(i,j,k,bi,bj)
167 & *( dAHybSigF(k)*rFullDepth
168 & +dBHybSigF(k)*tmpFld(i,j)
169 & )*recip_drF(k)
170 recip_hFacS(i,j,k,bi,bj) = maskS(i,j,k,bi,bj)*drF(k)
171 & /( dAHybSigF(k)*rFullDepth
172 & +dBHybSigF(k)*tmpFld(i,j)
173 & )
174 ENDDO
175 ENDDO
176 ENDDO
177
178 C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----|
179
180 C- end bi,bj loop
181 ENDDO
182 ENDDO
183
184 c _EXCH_XYZ_RS( hFacC, myThid )
185 c _EXCH_XYZ_RS( recip_hFacC, myThid )
186 c CALL EXCH_UV_XYZ_RS(hFacW,hFacS,.FALSE.,myThid)
187 c CALL EXCH_UV_XYZ_RS(recip_hFacW,recip_hFacS,.FALSE.,myThid)
188
189 C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----|
190 c#endif /* ndef DISABLE_SIGMA_CODE */
191 #endif /* NONLIN_FRSURF */
192
193 RETURN
194 END

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