/[MITgcm]/MITgcm/model/src/calc_div_ghat.F
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Contents of /MITgcm/model/src/calc_div_ghat.F

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Revision 1.19 - (show annotations) (download)
Thu Oct 9 04:19:18 2003 UTC (20 years, 7 months ago) by edhill
Branch: MAIN
CVS Tags: checkpoint51k_post, checkpoint52l_pre, hrcube4, hrcube5, checkpoint52d_pre, checkpoint52j_pre, checkpoint51o_pre, checkpoint51l_post, checkpoint52l_post, checkpoint52k_post, checkpoint52, checkpoint52f_post, checkpoint51t_post, checkpoint51n_post, checkpoint52i_pre, hrcube_1, hrcube_2, hrcube_3, checkpoint51s_post, checkpoint52e_pre, checkpoint52e_post, checkpoint51n_pre, checkpoint52b_pre, checkpoint51l_pre, checkpoint51q_post, checkpoint52b_post, checkpoint52c_post, checkpoint52f_pre, checkpoint51r_post, checkpoint51i_post, checkpoint52d_post, checkpoint52a_pre, checkpoint52i_post, checkpoint52h_pre, checkpoint52j_post, branch-netcdf, checkpoint51o_post, checkpoint52a_post, ecco_c52_e35, checkpoint51m_post, checkpoint51p_post, checkpoint51u_post
Branch point for: branch-nonh, tg2-branch, netcdf-sm0, checkpoint51n_branch
Changes since 1.18: +3 -1 lines 
 o first check-in for the "branch-genmake2" merge
 o verification suite as run on shelley (gcc 3.2.2):

Wed Oct  8 23:42:29 EDT 2003
                T           S           U           V
G D M    c        m  s        m  s        m  s        m  s
E p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
N n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
2 d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .

OPTFILE=NONE

Y Y Y Y 13 16 16 16  0 16 16 16 16 16 16 16 16 13 12  0  0 pass  adjustment.128x64x1
Y Y Y Y 16 16 16 16  0 16 16 16 16 16 16  0  0 16 16  0  0 pass  adjustment.cs-32x32x1
Y Y Y Y 16 16 16 16  0 16 16 16 16 16 16 22  0 16 16 22  0 pass  adjust_nlfs.cs-32x32x1
Y Y Y Y -- 13 13 16 16 13 13 13 13 16 16 16 16 16 16 16 16 N/O   advect_cs
Y Y Y Y -- 22 16 16 16 16 16 16 13 16 16 16 16 16 16 16 16 N/O   advect_xy
Y Y Y Y -- 13 16 13 16 16 16 16 16 16 16 22 16 16 16 16 16 N/O   advect_xz
Y Y Y Y 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 pass  aim.5l_cs
Y Y Y Y 14 16 16 16 16 16 16 16 16 13 16 16 16 16 16 13 16 pass  aim.5l_Equatorial_Channel
Y Y Y Y 16 16 16 16 16 16 16 16 16 16 16 13 16 16 13 13 16 pass  aim.5l_LatLon
Y Y Y Y 13 16 16 16 16 16 16 16 16 16 13 12 13 13 16 13 16 pass  exp0
Y Y Y Y 14 16 16 16 16 16 16 16 22 16 16 16 13 16 16 22 16 pass  exp1
Y Y Y Y 13 13 16 13 16 16 16 16 16 13 13 16 16 13 13 13 13 pass  exp2
Y Y Y Y 16 16 16 16 16 16 16 16 22 16 16 16 16 16 16 16 16 pass  exp4
Y Y Y Y 16 16 16 16 16 16 16 16 16 16 16 22 16 16 16 22 16 pass  exp5
Y Y Y Y 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 pass  front_relax
Y Y Y Y 14 16 16 13 13 16 16 13 13 16 13 13 16 12 13 13 16 pass  global_ocean.90x40x15
Y Y Y Y 10 16 16 13 13 16 13 16 16 13 13 13 13 16 16 13 16 FAIL  global_ocean.cs32x15
Y Y Y Y  6 11 12 13 13 12 13 16 13  9  9  9  9 10  9  9 11 FAIL  global_ocean_pressure
Y Y Y Y 14 16 16 13 16 16 16 13 13 13 13 13 16 12 16 13 16 pass  global_with_exf
Y Y Y Y 14 16 16 16 16 16 16 16 16 11 13 22 13 16 16  9 16 pass  hs94.128x64x5
Y Y Y Y 13 16 16 16 16 16 16 16 16 11 16 16 16 13 16 22 13 pass  hs94.1x64x5
Y Y Y Y 14 16 16 16 16 16 16 16 16 13 16 13 13 16 16 22 13 pass  hs94.cs-32x32x5
Y Y Y Y 10 10 16 13 13 16 16 16 22 16 13 13 13 13 13 22 13 FAIL  ideal_2D_oce
Y Y Y Y  8 16 16 16 16 16 16 16 16 13 13  8 16 16 16 16 16 FAIL  internal_wave
Y Y Y Y 14 16 16 16 16 16 16 16 16 13 13 22 13 13 13 22 16 pass  inverted_barometer
Y Y Y Y 12 16 16 16 16 16 16 16 16 16 13 12 13 13 13 13 13 FAIL  lab_sea
Y Y Y Y 11 16 16 16 16 16 16 16 13 13 13 12 13 16 13 12 13 FAIL  natl_box
Y Y Y Y 16 16 16 16 16 16 16 16 22 16 16 16 16 16 16 16 16 pass  plume_on_slope
Y Y Y Y 13 16 16 16 16 13 16 16 16 16 16 16 16 13 16 16 16 pass  solid-body.cs-32x32x1
1 C $Header: /u/u3/gcmpack/MITgcm/model/src/calc_div_ghat.F,v 1.18.2.1 2003/10/02 18:10:45 edhill Exp $
2 C $Name: $
3
4 #include "PACKAGES_CONFIG.h"
5 #include "CPP_OPTIONS.h"
6
7 CBOP
8 C !ROUTINE: CALC_DIV_GHAT
9 C !INTERFACE:
10 SUBROUTINE CALC_DIV_GHAT(
11 I bi,bj,iMin,iMax,jMin,jMax,K,
12 I xA,yA,
13 U cg2d_b,
14 I myThid)
15 C !DESCRIPTION: \bv
16 C *==========================================================*
17 C | S/R CALC_DIV_GHAT
18 C | o Form the right hand-side of the surface pressure eqn.
19 C *==========================================================*
20 C | Right hand side of pressure equation is divergence
21 C | of veclocity tendency (GHAT) term along with a relaxation
22 C | term equal to the barotropic flow field divergence.
23 C *==========================================================*
24 C \ev
25
26 C !USES:
27 IMPLICIT NONE
28 C == Global variables ==
29 #include "SIZE.h"
30 #include "DYNVARS.h"
31 #include "FFIELDS.h"
32 #include "EEPARAMS.h"
33 #include "PARAMS.h"
34 #include "GRID.h"
35 #include "SOLVE_FOR_PRESSURE3D.h"
36
37 C !INPUT/OUTPUT PARAMETERS:
38 C == Routine arguments ==
39 C bi, bj, iMin, iMax, jMin, jMax - Range of points for which calculation
40 C results will be set.
41 C k - Index of layer.
42 C xA, yA - Cell face areas
43 C cg2d_b - Conjugate Gradient 2-D solver : Right-hand side vector
44 C myThid - Instance number for this call of CALC_DIV_GHAT
45 INTEGER bi,bj,iMin,iMax,jMin,jMax
46 INTEGER K
47 _RS xA (1-OLx:sNx+OLx,1-OLy:sNy+OLy)
48 _RS yA (1-OLx:sNx+OLx,1-OLy:sNy+OLy)
49 _RL cg2d_b(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
50 INTEGER myThid
51
52 C !LOCAL VARIABLES:
53 C == Local variables ==
54 C i,j :: Loop counters
55 C pf :: Intermediate array for building RHS source term.
56 INTEGER i,j
57 _RL pf (1-OLx:sNx+OLx,1-OLy:sNy+OLy)
58 CEOP
59
60 C-- Pressure equation source term
61 C Term is the vertical integral of the divergence of the
62 C time tendency terms along with a relaxation term that
63 C pulls div(U) + dh/dt back toward zero.
64
65 IF (implicDiv2Dflow.EQ.1.) THEN
66 C Fully Implicit treatment of the Barotropic Flow Divergence
67 DO j=1,sNy
68 DO i=1,sNx+1
69 pf(i,j) = xA(i,j)*gU(i,j,k,bi,bj) / deltaTmom
70 ENDDO
71 ENDDO
72 ELSEIF (exactConserv) THEN
73 c ELSEIF (nonlinFreeSurf.GT.0) THEN
74 C Implicit treatment of the Barotropic Flow Divergence
75 DO j=1,sNy
76 DO i=1,sNx+1
77 pf(i,j) = implicDiv2Dflow
78 & *xA(i,j)*gU(i,j,k,bi,bj) / deltaTmom
79 ENDDO
80 ENDDO
81 ELSE
82 C Explicit+Implicit part of the Barotropic Flow Divergence
83 C => Filtering of uVel,vVel is necessary
84 C-- Now the filter are applied in the_correction_step().
85 C We have left this code here to indicate where the filters used to be
86 C in the algorithm before JMC moved them to after the pressure solver.
87 C-
88 C#ifdef ALLOW_ZONAL_FILT
89 C IF (zonal_filt_lat.LT.90.) THEN
90 C CALL ZONAL_FILTER(
91 C & uVel, hFacW, 1-1, sNy+1, k, k, bi, bj, 1, myThid)
92 C CALL ZONAL_FILTER(
93 C & vVel, hFacS, 1-1, sNy+1, k, k, bi, bj, 2, myThid)
94 C ENDIF
95 C#endif
96 DO j=1,sNy
97 DO i=1,sNx+1
98 pf(i,j) = ( implicDiv2Dflow * gU(i,j,k,bi,bj)
99 & + (1.-implicDiv2Dflow) * uVel(i,j,k,bi,bj)
100 & ) * xA(i,j) / deltaTmom
101 ENDDO
102 ENDDO
103 ENDIF
104 DO j=1,sNy
105 DO i=1,sNx
106 cg2d_b(i,j,bi,bj) = cg2d_b(i,j,bi,bj) +
107 & pf(i+1,j)-pf(i,j)
108 ENDDO
109 ENDDO
110
111 #ifdef ALLOW_NONHYDROSTATIC
112 IF (nonHydrostatic) THEN
113 DO j=1,sNy
114 DO i=1,sNx
115 cg3d_b(i,j,k,bi,bj) = pf(i+1,j)-pf(i,j)
116 ENDDO
117 ENDDO
118 ENDIF
119 #endif
120
121 IF (implicDiv2Dflow.EQ.1.) THEN
122 C Fully Implicit treatment of the Barotropic Flow Divergence
123 DO j=1,sNy+1
124 DO i=1,sNx
125 pf(i,j) = yA(i,j)*gV(i,j,k,bi,bj) / deltatmom
126 ENDDO
127 ENDDO
128 ELSEIF (exactConserv) THEN
129 c ELSEIF (nonlinFreeSurf.GT.0) THEN
130 C Implicit treatment of the Barotropic Flow Divergence
131 DO j=1,sNy+1
132 DO i=1,sNx
133 pf(i,j) = implicDiv2Dflow
134 & *yA(i,j)*gV(i,j,k,bi,bj) / deltatmom
135 ENDDO
136 ENDDO
137 ELSE
138 C Explicit+Implicit part of the Barotropic Flow Divergence
139 DO j=1,sNy+1
140 DO i=1,sNx
141 pf(i,j) = ( implicDiv2Dflow * gV(i,j,k,bi,bj)
142 & + (1.-implicDiv2Dflow) * vVel(i,j,k,bi,bj)
143 & ) * yA(i,j) / deltaTmom
144 ENDDO
145 ENDDO
146 ENDIF
147 DO j=1,sNy
148 DO i=1,sNx
149 cg2d_b(i,j,bi,bj) = cg2d_b(i,j,bi,bj) +
150 & pf(i,j+1)-pf(i,j)
151 ENDDO
152 ENDDO
153
154 #ifdef ALLOW_NONHYDROSTATIC
155 IF (nonHydrostatic) THEN
156 DO j=1,sNy
157 DO i=1,sNx
158 cg3d_b(i,j,k,bi,bj) = cg3d_b(i,j,k,bi,bj) +
159 & pf(i,j+1)-pf(i,j)
160 ENDDO
161 ENDDO
162 ENDIF
163 #endif
164
165 RETURN
166 END
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