1 |
jmc |
1.22 |
C $Header: /u/gcmpack/MITgcm/pkg/mom_fluxform/mom_fluxform.F,v 1.21 2004/10/29 16:25:37 jmc Exp $ |
2 |
adcroft |
1.2 |
C $Name: $ |
3 |
adcroft |
1.1 |
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4 |
adcroft |
1.3 |
CBOI |
5 |
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C !TITLE: pkg/mom\_advdiff |
6 |
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C !AUTHORS: adcroft@mit.edu |
7 |
adcroft |
1.4 |
C !INTRODUCTION: Flux-form Momentum Equations Package |
8 |
adcroft |
1.3 |
C |
9 |
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C Package "mom\_fluxform" provides methods for calculating explicit terms |
10 |
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C in the momentum equation cast in flux-form: |
11 |
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C \begin{eqnarray*} |
12 |
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C G^u & = & -\frac{1}{\rho} \partial_x \phi_h |
13 |
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C -\nabla \cdot {\bf v} u |
14 |
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C -fv |
15 |
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C +\frac{1}{\rho} \nabla \cdot {\bf \tau}^x |
16 |
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C + \mbox{metrics} |
17 |
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C \\ |
18 |
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C G^v & = & -\frac{1}{\rho} \partial_y \phi_h |
19 |
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C -\nabla \cdot {\bf v} v |
20 |
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C +fu |
21 |
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C +\frac{1}{\rho} \nabla \cdot {\bf \tau}^y |
22 |
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C + \mbox{metrics} |
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C \end{eqnarray*} |
24 |
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C where ${\bf v}=(u,v,w)$ and $\tau$, the stress tensor, includes surface |
25 |
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C stresses as well as internal viscous stresses. |
26 |
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CEOI |
27 |
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28 |
edhill |
1.13 |
#include "MOM_FLUXFORM_OPTIONS.h" |
29 |
adcroft |
1.1 |
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30 |
adcroft |
1.3 |
CBOP |
31 |
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C !ROUTINE: MOM_FLUXFORM |
32 |
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33 |
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C !INTERFACE: ========================================================== |
34 |
adcroft |
1.1 |
SUBROUTINE MOM_FLUXFORM( |
35 |
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I bi,bj,iMin,iMax,jMin,jMax,k,kUp,kDown, |
36 |
jmc |
1.11 |
I dPhihydX,dPhiHydY,KappaRU,KappaRV, |
37 |
adcroft |
1.1 |
U fVerU, fVerV, |
38 |
jmc |
1.8 |
I myTime,myIter,myThid) |
39 |
adcroft |
1.3 |
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40 |
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C !DESCRIPTION: |
41 |
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C Calculates all the horizontal accelerations except for the implicit surface |
42 |
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C pressure gradient and implciit vertical viscosity. |
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adcroft |
1.1 |
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adcroft |
1.3 |
C !USES: =============================================================== |
45 |
adcroft |
1.1 |
C == Global variables == |
46 |
adcroft |
1.3 |
IMPLICIT NONE |
47 |
adcroft |
1.1 |
#include "SIZE.h" |
48 |
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#include "DYNVARS.h" |
49 |
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#include "FFIELDS.h" |
50 |
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#include "EEPARAMS.h" |
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#include "PARAMS.h" |
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#include "GRID.h" |
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#include "SURFACE.h" |
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55 |
adcroft |
1.3 |
C !INPUT PARAMETERS: =================================================== |
56 |
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C bi,bj :: tile indices |
57 |
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C iMin,iMax,jMin,jMAx :: loop ranges |
58 |
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C k :: vertical level |
59 |
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C kUp :: =1 or 2 for consecutive k |
60 |
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C kDown :: =2 or 1 for consecutive k |
61 |
jmc |
1.9 |
C dPhiHydX,Y :: Gradient (X & Y dir.) of Hydrostatic Potential |
62 |
adcroft |
1.3 |
C KappaRU :: vertical viscosity |
63 |
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C KappaRV :: vertical viscosity |
64 |
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C fVerU :: vertical flux of U, 2 1/2 dim for pipe-lining |
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C fVerV :: vertical flux of V, 2 1/2 dim for pipe-lining |
66 |
jmc |
1.8 |
C myTime :: current time |
67 |
adcroft |
1.3 |
C myIter :: current time-step number |
68 |
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C myThid :: thread number |
69 |
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INTEGER bi,bj,iMin,iMax,jMin,jMax |
70 |
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INTEGER k,kUp,kDown |
71 |
jmc |
1.9 |
_RL dPhiHydX(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
72 |
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_RL dPhiHydY(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
73 |
adcroft |
1.1 |
_RL KappaRU(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr) |
74 |
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_RL KappaRV(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr) |
75 |
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_RL fVerU(1-OLx:sNx+OLx,1-OLy:sNy+OLy,2) |
76 |
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_RL fVerV(1-OLx:sNx+OLx,1-OLy:sNy+OLy,2) |
77 |
jmc |
1.8 |
_RL myTime |
78 |
adcroft |
1.2 |
INTEGER myIter |
79 |
adcroft |
1.1 |
INTEGER myThid |
80 |
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81 |
adcroft |
1.3 |
C !OUTPUT PARAMETERS: ================================================== |
82 |
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C None - updates gU() and gV() in common blocks |
83 |
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84 |
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C !LOCAL VARIABLES: ==================================================== |
85 |
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C i,j :: loop indices |
86 |
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C aF :: advective flux |
87 |
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C vF :: viscous flux |
88 |
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C v4F :: bi-harmonic viscous flux |
89 |
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C vrF :: vertical viscous flux |
90 |
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C cF :: Coriolis acceleration |
91 |
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C mT :: Metric terms |
92 |
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C pF :: Pressure gradient |
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C fZon :: zonal fluxes |
94 |
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C fMer :: meridional fluxes |
95 |
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INTEGER i,j |
96 |
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_RL aF(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
97 |
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_RL vF(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
98 |
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_RL v4F(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
99 |
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_RL vrF(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
100 |
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_RL cF(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
101 |
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_RL mT(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
102 |
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_RL pF(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
103 |
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_RL fZon(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
104 |
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_RL fMer(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
105 |
adcroft |
1.1 |
C wMaskOverride - Land sea flag override for top layer. |
106 |
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C afFacMom - Tracer parameters for turning terms |
107 |
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C vfFacMom on and off. |
108 |
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C pfFacMom afFacMom - Advective terms |
109 |
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C cfFacMom vfFacMom - Eddy viscosity terms |
110 |
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C mTFacMom pfFacMom - Pressure terms |
111 |
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C cfFacMom - Coriolis terms |
112 |
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C foFacMom - Forcing |
113 |
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C mTFacMom - Metric term |
114 |
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C uDudxFac, AhDudxFac, etc ... individual term tracer parameters |
115 |
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_RS hFacZ(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
116 |
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_RS r_hFacZ(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
117 |
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_RS xA(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
118 |
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_RS yA(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
119 |
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_RL uTrans(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
120 |
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_RL vTrans(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
121 |
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_RL uFld(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
122 |
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_RL vFld(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
123 |
jmc |
1.8 |
_RL rTransU(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
124 |
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_RL rTransV(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
125 |
adcroft |
1.18 |
_RL KE(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
126 |
jmc |
1.21 |
c _RL viscAh_D(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
127 |
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c _RL viscAh_Z(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
128 |
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c _RL viscA4_D(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
129 |
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c _RL viscA4_Z(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
130 |
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c _RL vort3(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
131 |
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c _RL hDiv(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
132 |
adcroft |
1.18 |
_RL strain(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
133 |
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_RL tension(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
134 |
adcroft |
1.1 |
C I,J,K - Loop counters |
135 |
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C rVelMaskOverride - Factor for imposing special surface boundary conditions |
136 |
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C ( set according to free-surface condition ). |
137 |
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C hFacROpen - Lopped cell factos used tohold fraction of open |
138 |
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C hFacRClosed and closed cell wall. |
139 |
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_RL rVelMaskOverride |
140 |
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C xxxFac - On-off tracer parameters used for switching terms off. |
141 |
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_RL uDudxFac |
142 |
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_RL AhDudxFac |
143 |
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_RL A4DuxxdxFac |
144 |
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_RL vDudyFac |
145 |
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_RL AhDudyFac |
146 |
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_RL A4DuyydyFac |
147 |
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_RL rVelDudrFac |
148 |
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_RL ArDudrFac |
149 |
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_RL fuFac |
150 |
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_RL phxFac |
151 |
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_RL mtFacU |
152 |
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_RL uDvdxFac |
153 |
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_RL AhDvdxFac |
154 |
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_RL A4DvxxdxFac |
155 |
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_RL vDvdyFac |
156 |
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_RL AhDvdyFac |
157 |
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_RL A4DvyydyFac |
158 |
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_RL rVelDvdrFac |
159 |
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_RL ArDvdrFac |
160 |
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_RL fvFac |
161 |
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_RL phyFac |
162 |
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_RL vForcFac |
163 |
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_RL mtFacV |
164 |
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INTEGER km1,kp1 |
165 |
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_RL wVelBottomOverride |
166 |
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LOGICAL bottomDragTerms |
167 |
adcroft |
1.3 |
CEOP |
168 |
adcroft |
1.1 |
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169 |
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km1=MAX(1,k-1) |
170 |
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kp1=MIN(Nr,k+1) |
171 |
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rVelMaskOverride=1. |
172 |
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IF ( k .EQ. 1 ) rVelMaskOverride=freeSurfFac |
173 |
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wVelBottomOverride=1. |
174 |
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IF (k.EQ.Nr) wVelBottomOverride=0. |
175 |
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176 |
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C Initialise intermediate terms |
177 |
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DO J=1-OLy,sNy+OLy |
178 |
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DO I=1-OLx,sNx+OLx |
179 |
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aF(i,j) = 0. |
180 |
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vF(i,j) = 0. |
181 |
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v4F(i,j) = 0. |
182 |
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vrF(i,j) = 0. |
183 |
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cF(i,j) = 0. |
184 |
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mT(i,j) = 0. |
185 |
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pF(i,j) = 0. |
186 |
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fZon(i,j) = 0. |
187 |
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fMer(i,j) = 0. |
188 |
jmc |
1.8 |
rTransU(i,j) = 0. |
189 |
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rTransV(i,j) = 0. |
190 |
adcroft |
1.18 |
strain(i,j) = 0. |
191 |
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tension(i,j) = 0. |
192 |
adcroft |
1.1 |
ENDDO |
193 |
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ENDDO |
194 |
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195 |
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C-- Term by term tracer parmeters |
196 |
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C o U momentum equation |
197 |
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uDudxFac = afFacMom*1. |
198 |
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AhDudxFac = vfFacMom*1. |
199 |
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A4DuxxdxFac = vfFacMom*1. |
200 |
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vDudyFac = afFacMom*1. |
201 |
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AhDudyFac = vfFacMom*1. |
202 |
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A4DuyydyFac = vfFacMom*1. |
203 |
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rVelDudrFac = afFacMom*1. |
204 |
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ArDudrFac = vfFacMom*1. |
205 |
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mTFacU = mtFacMom*1. |
206 |
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fuFac = cfFacMom*1. |
207 |
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phxFac = pfFacMom*1. |
208 |
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C o V momentum equation |
209 |
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uDvdxFac = afFacMom*1. |
210 |
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AhDvdxFac = vfFacMom*1. |
211 |
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A4DvxxdxFac = vfFacMom*1. |
212 |
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vDvdyFac = afFacMom*1. |
213 |
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AhDvdyFac = vfFacMom*1. |
214 |
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A4DvyydyFac = vfFacMom*1. |
215 |
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rVelDvdrFac = afFacMom*1. |
216 |
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ArDvdrFac = vfFacMom*1. |
217 |
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mTFacV = mtFacMom*1. |
218 |
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fvFac = cfFacMom*1. |
219 |
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phyFac = pfFacMom*1. |
220 |
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vForcFac = foFacMom*1. |
221 |
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222 |
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IF ( no_slip_bottom |
223 |
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& .OR. bottomDragQuadratic.NE.0. |
224 |
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& .OR. bottomDragLinear.NE.0.) THEN |
225 |
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bottomDragTerms=.TRUE. |
226 |
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ELSE |
227 |
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bottomDragTerms=.FALSE. |
228 |
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ENDIF |
229 |
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230 |
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C-- with stagger time stepping, grad Phi_Hyp is directly incoporated in TIMESTEP |
231 |
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IF (staggerTimeStep) THEN |
232 |
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phxFac = 0. |
233 |
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phyFac = 0. |
234 |
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ENDIF |
235 |
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236 |
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C-- Calculate open water fraction at vorticity points |
237 |
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CALL MOM_CALC_HFACZ(bi,bj,k,hFacZ,r_hFacZ,myThid) |
238 |
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239 |
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C---- Calculate common quantities used in both U and V equations |
240 |
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C Calculate tracer cell face open areas |
241 |
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DO j=1-OLy,sNy+OLy |
242 |
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DO i=1-OLx,sNx+OLx |
243 |
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xA(i,j) = _dyG(i,j,bi,bj) |
244 |
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& *drF(k)*_hFacW(i,j,k,bi,bj) |
245 |
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yA(i,j) = _dxG(i,j,bi,bj) |
246 |
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& *drF(k)*_hFacS(i,j,k,bi,bj) |
247 |
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ENDDO |
248 |
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ENDDO |
249 |
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250 |
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C Make local copies of horizontal flow field |
251 |
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DO j=1-OLy,sNy+OLy |
252 |
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DO i=1-OLx,sNx+OLx |
253 |
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uFld(i,j) = uVel(i,j,k,bi,bj) |
254 |
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vFld(i,j) = vVel(i,j,k,bi,bj) |
255 |
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ENDDO |
256 |
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ENDDO |
257 |
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258 |
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C Calculate velocity field "volume transports" through tracer cell faces. |
259 |
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DO j=1-OLy,sNy+OLy |
260 |
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DO i=1-OLx,sNx+OLx |
261 |
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uTrans(i,j) = uFld(i,j)*xA(i,j) |
262 |
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vTrans(i,j) = vFld(i,j)*yA(i,j) |
263 |
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ENDDO |
264 |
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ENDDO |
265 |
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266 |
adcroft |
1.17 |
CALL MOM_CALC_KE(bi,bj,k,3,uFld,vFld,KE,myThid) |
267 |
adcroft |
1.1 |
|
268 |
jmc |
1.21 |
IF (viscAstrain.NE.0. .OR. viscAtension.NE.0.) THEN |
269 |
adcroft |
1.18 |
CALL MOM_CALC_TENSION(bi,bj,k,uFld,vFld, |
270 |
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O tension, |
271 |
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I myThid) |
272 |
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CALL MOM_CALC_STRAIN(bi,bj,k,uFld,vFld,hFacZ, |
273 |
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O strain, |
274 |
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I myThid) |
275 |
jmc |
1.21 |
ENDIF |
276 |
adcroft |
1.18 |
|
277 |
jmc |
1.8 |
C--- First call (k=1): compute vertical adv. flux fVerU(kUp) & fVerV(kUp) |
278 |
|
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IF (momAdvection.AND.k.EQ.1) THEN |
279 |
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280 |
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C- Calculate vertical transports above U & V points (West & South face): |
281 |
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CALL MOM_CALC_RTRANS( k, bi, bj, |
282 |
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O rTransU, rTransV, |
283 |
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I myTime, myIter, myThid) |
284 |
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285 |
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C- Free surface correction term (flux at k=1) |
286 |
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CALL MOM_U_ADV_WU(bi,bj,k,uVel,wVel,rTransU,af,myThid) |
287 |
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DO j=jMin,jMax |
288 |
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DO i=iMin,iMax |
289 |
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fVerU(i,j,kUp) = af(i,j) |
290 |
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ENDDO |
291 |
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ENDDO |
292 |
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293 |
|
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CALL MOM_V_ADV_WV(bi,bj,k,vVel,wVel,rTransV,af,myThid) |
294 |
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DO j=jMin,jMax |
295 |
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DO i=iMin,iMax |
296 |
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fVerV(i,j,kUp) = af(i,j) |
297 |
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ENDDO |
298 |
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ENDDO |
299 |
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300 |
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C--- endif momAdvection & k=1 |
301 |
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ENDIF |
302 |
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303 |
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304 |
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C--- Calculate vertical transports (at k+1) below U & V points : |
305 |
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IF (momAdvection) THEN |
306 |
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CALL MOM_CALC_RTRANS( k+1, bi, bj, |
307 |
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O rTransU, rTransV, |
308 |
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I myTime, myIter, myThid) |
309 |
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ENDIF |
310 |
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311 |
adcroft |
1.18 |
c IF (momViscosity) THEN |
312 |
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c & CALL MOM_CALC_VISCOSITY(bi,bj,k, |
313 |
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c I uFld,vFld, |
314 |
jmc |
1.21 |
c O viscAh_D,viscAh_Z,myThid) |
315 |
jmc |
1.8 |
|
316 |
adcroft |
1.1 |
C---- Zonal momentum equation starts here |
317 |
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318 |
|
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C Bi-harmonic term del^2 U -> v4F |
319 |
jmc |
1.10 |
IF (momViscosity .AND. viscA4.NE.0. ) |
320 |
adcroft |
1.1 |
& CALL MOM_U_DEL2U(bi,bj,k,uFld,hFacZ,v4f,myThid) |
321 |
|
|
|
322 |
|
|
C--- Calculate mean and eddy fluxes between cells for zonal flow. |
323 |
|
|
|
324 |
|
|
C-- Zonal flux (fZon is at east face of "u" cell) |
325 |
|
|
|
326 |
|
|
C Mean flow component of zonal flux -> aF |
327 |
|
|
IF (momAdvection) |
328 |
|
|
& CALL MOM_U_ADV_UU(bi,bj,k,uTrans,uFld,aF,myThid) |
329 |
|
|
|
330 |
|
|
C Laplacian and bi-harmonic terms -> vF |
331 |
|
|
IF (momViscosity) |
332 |
|
|
& CALL MOM_U_XVISCFLUX(bi,bj,k,uFld,v4F,vF,myThid) |
333 |
|
|
|
334 |
|
|
C Combine fluxes -> fZon |
335 |
|
|
DO j=jMin,jMax |
336 |
|
|
DO i=iMin,iMax |
337 |
|
|
fZon(i,j) = uDudxFac*aF(i,j) + AhDudxFac*vF(i,j) |
338 |
|
|
ENDDO |
339 |
|
|
ENDDO |
340 |
|
|
|
341 |
|
|
C-- Meridional flux (fMer is at south face of "u" cell) |
342 |
|
|
|
343 |
|
|
C Mean flow component of meridional flux |
344 |
|
|
IF (momAdvection) |
345 |
|
|
& CALL MOM_U_ADV_VU(bi,bj,k,vTrans,uFld,aF,myThid) |
346 |
|
|
|
347 |
|
|
C Laplacian and bi-harmonic term |
348 |
|
|
IF (momViscosity) |
349 |
|
|
& CALL MOM_U_YVISCFLUX(bi,bj,k,uFld,v4F,hFacZ,vF,myThid) |
350 |
|
|
|
351 |
|
|
C Combine fluxes -> fMer |
352 |
jmc |
1.10 |
DO j=jMin,jMax+1 |
353 |
adcroft |
1.1 |
DO i=iMin,iMax |
354 |
|
|
fMer(i,j) = vDudyFac*aF(i,j) + AhDudyFac*vF(i,j) |
355 |
|
|
ENDDO |
356 |
|
|
ENDDO |
357 |
|
|
|
358 |
|
|
C-- Vertical flux (fVer is at upper face of "u" cell) |
359 |
|
|
|
360 |
|
|
C Mean flow component of vertical flux (at k+1) -> aF |
361 |
|
|
IF (momAdvection) |
362 |
jmc |
1.8 |
& CALL MOM_U_ADV_WU(bi,bj,k+1,uVel,wVel,rTransU,af,myThid) |
363 |
adcroft |
1.1 |
|
364 |
|
|
C Eddy component of vertical flux (interior component only) -> vrF |
365 |
|
|
IF (momViscosity.AND..NOT.implicitViscosity) |
366 |
|
|
& CALL MOM_U_RVISCFLUX(bi,bj,k,uVel,KappaRU,vrF,myThid) |
367 |
|
|
|
368 |
|
|
C Combine fluxes |
369 |
|
|
DO j=jMin,jMax |
370 |
|
|
DO i=iMin,iMax |
371 |
|
|
fVerU(i,j,kDown) = rVelDudrFac*aF(i,j) + ArDudrFac*vrF(i,j) |
372 |
|
|
ENDDO |
373 |
|
|
ENDDO |
374 |
|
|
|
375 |
|
|
C-- Tendency is minus divergence of the fluxes + coriolis + pressure term |
376 |
|
|
DO j=jMin,jMax |
377 |
|
|
DO i=iMin,iMax |
378 |
|
|
gU(i,j,k,bi,bj) = |
379 |
|
|
#ifdef OLD_UV_GEOM |
380 |
|
|
& -_recip_hFacW(i,j,k,bi,bj)*recip_drF(k)/ |
381 |
|
|
& ( 0.5 _d 0*(rA(i,j,bi,bj)+rA(i-1,j,bi,bj)) ) |
382 |
|
|
#else |
383 |
|
|
& -_recip_hFacW(i,j,k,bi,bj)*recip_drF(k) |
384 |
|
|
& *recip_rAw(i,j,bi,bj) |
385 |
|
|
#endif |
386 |
|
|
& *(fZon(i,j ) - fZon(i-1,j) |
387 |
|
|
& +fMer(i,j+1) - fMer(i ,j) |
388 |
jmc |
1.22 |
& -fVerU(i,j,kUp)*rkSign + fVerU(i,j,kDown)*rkSign |
389 |
adcroft |
1.1 |
& ) |
390 |
jmc |
1.9 |
& - phxFac*dPhiHydX(i,j) |
391 |
adcroft |
1.1 |
ENDDO |
392 |
|
|
ENDDO |
393 |
|
|
|
394 |
jmc |
1.8 |
#ifdef NONLIN_FRSURF |
395 |
|
|
C-- account for 3.D divergence of the flow in rStar coordinate: |
396 |
|
|
IF ( momAdvection .AND. select_rStar.GT.0 ) THEN |
397 |
|
|
DO j=jMin,jMax |
398 |
|
|
DO i=iMin,iMax |
399 |
|
|
gU(i,j,k,bi,bj) = gU(i,j,k,bi,bj) |
400 |
|
|
& - (rStarExpW(i,j,bi,bj) - 1. _d 0)/deltaTfreesurf |
401 |
|
|
& *uVel(i,j,k,bi,bj) |
402 |
|
|
ENDDO |
403 |
|
|
ENDDO |
404 |
|
|
ENDIF |
405 |
|
|
IF ( momAdvection .AND. select_rStar.LT.0 ) THEN |
406 |
|
|
DO j=jMin,jMax |
407 |
|
|
DO i=iMin,iMax |
408 |
|
|
gU(i,j,k,bi,bj) = gU(i,j,k,bi,bj) |
409 |
|
|
& - rStarDhWDt(i,j,bi,bj)*uVel(i,j,k,bi,bj) |
410 |
|
|
ENDDO |
411 |
|
|
ENDDO |
412 |
|
|
ENDIF |
413 |
|
|
#endif /* NONLIN_FRSURF */ |
414 |
|
|
|
415 |
adcroft |
1.1 |
C-- No-slip and drag BCs appear as body forces in cell abutting topography |
416 |
|
|
IF (momViscosity.AND.no_slip_sides) THEN |
417 |
|
|
C- No-slip BCs impose a drag at walls... |
418 |
|
|
CALL MOM_U_SIDEDRAG(bi,bj,k,uFld,v4F,hFacZ,vF,myThid) |
419 |
|
|
DO j=jMin,jMax |
420 |
|
|
DO i=iMin,iMax |
421 |
|
|
gU(i,j,k,bi,bj) = gU(i,j,k,bi,bj)+vF(i,j) |
422 |
|
|
ENDDO |
423 |
|
|
ENDDO |
424 |
|
|
ENDIF |
425 |
|
|
C- No-slip BCs impose a drag at bottom |
426 |
|
|
IF (momViscosity.AND.bottomDragTerms) THEN |
427 |
|
|
CALL MOM_U_BOTTOMDRAG(bi,bj,k,uFld,KE,KappaRU,vF,myThid) |
428 |
|
|
DO j=jMin,jMax |
429 |
|
|
DO i=iMin,iMax |
430 |
|
|
gU(i,j,k,bi,bj) = gU(i,j,k,bi,bj)+vF(i,j) |
431 |
|
|
ENDDO |
432 |
|
|
ENDDO |
433 |
|
|
ENDIF |
434 |
|
|
|
435 |
jmc |
1.12 |
C-- Forcing term (moved to timestep.F) |
436 |
|
|
c IF (momForcing) |
437 |
|
|
c & CALL EXTERNAL_FORCING_U( |
438 |
|
|
c I iMin,iMax,jMin,jMax,bi,bj,k, |
439 |
|
|
c I myTime,myThid) |
440 |
adcroft |
1.1 |
|
441 |
|
|
C-- Metric terms for curvilinear grid systems |
442 |
adcroft |
1.5 |
IF (useNHMTerms) THEN |
443 |
|
|
C o Non-hydrosatic metric terms |
444 |
adcroft |
1.1 |
CALL MOM_U_METRIC_NH(bi,bj,k,uFld,wVel,mT,myThid) |
445 |
|
|
DO j=jMin,jMax |
446 |
|
|
DO i=iMin,iMax |
447 |
|
|
gU(i,j,k,bi,bj) = gU(i,j,k,bi,bj)+mTFacU*mT(i,j) |
448 |
|
|
ENDDO |
449 |
|
|
ENDDO |
450 |
adcroft |
1.5 |
ENDIF |
451 |
|
|
IF (usingSphericalPolarMTerms) THEN |
452 |
adcroft |
1.1 |
CALL MOM_U_METRIC_SPHERE(bi,bj,k,uFld,vFld,mT,myThid) |
453 |
|
|
DO j=jMin,jMax |
454 |
|
|
DO i=iMin,iMax |
455 |
|
|
gU(i,j,k,bi,bj) = gU(i,j,k,bi,bj)+mTFacU*mT(i,j) |
456 |
|
|
ENDDO |
457 |
|
|
ENDDO |
458 |
afe |
1.19 |
|
459 |
afe |
1.20 |
ENDIF |
460 |
afe |
1.19 |
IF (usingCylindricalGrid) THEN |
461 |
|
|
CALL MOM_U_METRIC_CYLINDER(bi,bj,k,uFld,vFld,mT,myThid) |
462 |
|
|
DO j=jMin,jMax |
463 |
|
|
DO i=iMin,iMax |
464 |
|
|
gU(i,j,k,bi,bj) = gU(i,j,k,bi,bj)+mTFacU*mT(i,j) |
465 |
|
|
ENDDO |
466 |
|
|
ENDDO |
467 |
|
|
|
468 |
adcroft |
1.1 |
ENDIF |
469 |
|
|
C-- Set du/dt on boundaries to zero |
470 |
|
|
DO j=jMin,jMax |
471 |
|
|
DO i=iMin,iMax |
472 |
|
|
gU(i,j,k,bi,bj) = gU(i,j,k,bi,bj)*_maskW(i,j,k,bi,bj) |
473 |
|
|
ENDDO |
474 |
|
|
ENDDO |
475 |
|
|
|
476 |
|
|
|
477 |
|
|
C---- Meridional momentum equation starts here |
478 |
|
|
|
479 |
|
|
C Bi-harmonic term del^2 V -> v4F |
480 |
jmc |
1.10 |
IF (momViscosity .AND. viscA4.NE.0. ) |
481 |
adcroft |
1.1 |
& CALL MOM_V_DEL2V(bi,bj,k,vFld,hFacZ,v4f,myThid) |
482 |
|
|
|
483 |
|
|
C--- Calculate mean and eddy fluxes between cells for meridional flow. |
484 |
|
|
|
485 |
|
|
C-- Zonal flux (fZon is at west face of "v" cell) |
486 |
|
|
|
487 |
|
|
C Mean flow component of zonal flux -> aF |
488 |
|
|
IF (momAdvection) |
489 |
|
|
& CALL MOM_V_ADV_UV(bi,bj,k,uTrans,vFld,af,myThid) |
490 |
|
|
|
491 |
|
|
C Laplacian and bi-harmonic terms -> vF |
492 |
|
|
IF (momViscosity) |
493 |
|
|
& CALL MOM_V_XVISCFLUX(bi,bj,k,vFld,v4f,hFacZ,vf,myThid) |
494 |
|
|
|
495 |
|
|
C Combine fluxes -> fZon |
496 |
|
|
DO j=jMin,jMax |
497 |
jmc |
1.10 |
DO i=iMin,iMax+1 |
498 |
adcroft |
1.1 |
fZon(i,j) = uDvdxFac*aF(i,j) + AhDvdxFac*vF(i,j) |
499 |
|
|
ENDDO |
500 |
|
|
ENDDO |
501 |
|
|
|
502 |
|
|
C-- Meridional flux (fMer is at north face of "v" cell) |
503 |
|
|
|
504 |
|
|
C Mean flow component of meridional flux |
505 |
|
|
IF (momAdvection) |
506 |
|
|
& CALL MOM_V_ADV_VV(bi,bj,k,vTrans,vFld,af,myThid) |
507 |
|
|
|
508 |
|
|
C Laplacian and bi-harmonic term |
509 |
|
|
IF (momViscosity) |
510 |
|
|
& CALL MOM_V_YVISCFLUX(bi,bj,k,vFld,v4f,vf,myThid) |
511 |
|
|
|
512 |
|
|
C Combine fluxes -> fMer |
513 |
|
|
DO j=jMin,jMax |
514 |
|
|
DO i=iMin,iMax |
515 |
|
|
fMer(i,j) = vDvdyFac*aF(i,j) + AhDvdyFac*vF(i,j) |
516 |
|
|
ENDDO |
517 |
|
|
ENDDO |
518 |
|
|
|
519 |
|
|
C-- Vertical flux (fVer is at upper face of "v" cell) |
520 |
|
|
|
521 |
|
|
C o Mean flow component of vertical flux |
522 |
|
|
IF (momAdvection) |
523 |
jmc |
1.8 |
& CALL MOM_V_ADV_WV(bi,bj,k+1,vVel,wVel,rTransV,af,myThid) |
524 |
adcroft |
1.1 |
|
525 |
|
|
C Eddy component of vertical flux (interior component only) -> vrF |
526 |
|
|
IF (momViscosity.AND..NOT.implicitViscosity) |
527 |
|
|
& CALL MOM_V_RVISCFLUX(bi,bj,k,vVel,KappaRV,vrf,myThid) |
528 |
|
|
|
529 |
|
|
C Combine fluxes -> fVerV |
530 |
|
|
DO j=jMin,jMax |
531 |
|
|
DO i=iMin,iMax |
532 |
|
|
fVerV(i,j,kDown) = rVelDvdrFac*aF(i,j) + ArDvdrFac*vrF(i,j) |
533 |
|
|
ENDDO |
534 |
|
|
ENDDO |
535 |
|
|
|
536 |
|
|
C-- Tendency is minus divergence of the fluxes + coriolis + pressure term |
537 |
|
|
DO j=jMin,jMax |
538 |
|
|
DO i=iMin,iMax |
539 |
|
|
gV(i,j,k,bi,bj) = |
540 |
|
|
#ifdef OLD_UV_GEOM |
541 |
|
|
& -_recip_hFacS(i,j,k,bi,bj)*recip_drF(k)/ |
542 |
|
|
& ( 0.5 _d 0*(_rA(i,j,bi,bj)+_rA(i,j-1,bi,bj)) ) |
543 |
|
|
#else |
544 |
|
|
& -_recip_hFacS(i,j,k,bi,bj)*recip_drF(k) |
545 |
|
|
& *recip_rAs(i,j,bi,bj) |
546 |
|
|
#endif |
547 |
|
|
& *(fZon(i+1,j) - fZon(i,j ) |
548 |
|
|
& +fMer(i,j ) - fMer(i,j-1) |
549 |
jmc |
1.22 |
& -fVerV(i,j,kUp)*rkSign + fVerV(i,j,kDown)*rkSign |
550 |
adcroft |
1.1 |
& ) |
551 |
jmc |
1.9 |
& - phyFac*dPhiHydY(i,j) |
552 |
adcroft |
1.1 |
ENDDO |
553 |
|
|
ENDDO |
554 |
|
|
|
555 |
jmc |
1.8 |
#ifdef NONLIN_FRSURF |
556 |
|
|
C-- account for 3.D divergence of the flow in rStar coordinate: |
557 |
|
|
IF ( momAdvection .AND. select_rStar.GT.0 ) THEN |
558 |
|
|
DO j=jMin,jMax |
559 |
|
|
DO i=iMin,iMax |
560 |
|
|
gV(i,j,k,bi,bj) = gV(i,j,k,bi,bj) |
561 |
|
|
& - (rStarExpS(i,j,bi,bj) - 1. _d 0)/deltaTfreesurf |
562 |
|
|
& *vVel(i,j,k,bi,bj) |
563 |
|
|
ENDDO |
564 |
|
|
ENDDO |
565 |
|
|
ENDIF |
566 |
|
|
IF ( momAdvection .AND. select_rStar.LT.0 ) THEN |
567 |
|
|
DO j=jMin,jMax |
568 |
|
|
DO i=iMin,iMax |
569 |
|
|
gV(i,j,k,bi,bj) = gV(i,j,k,bi,bj) |
570 |
|
|
& - rStarDhSDt(i,j,bi,bj)*vVel(i,j,k,bi,bj) |
571 |
|
|
ENDDO |
572 |
|
|
ENDDO |
573 |
|
|
ENDIF |
574 |
|
|
#endif /* NONLIN_FRSURF */ |
575 |
|
|
|
576 |
adcroft |
1.1 |
C-- No-slip and drag BCs appear as body forces in cell abutting topography |
577 |
|
|
IF (momViscosity.AND.no_slip_sides) THEN |
578 |
|
|
C- No-slip BCs impose a drag at walls... |
579 |
|
|
CALL MOM_V_SIDEDRAG(bi,bj,k,vFld,v4F,hFacZ,vF,myThid) |
580 |
|
|
DO j=jMin,jMax |
581 |
|
|
DO i=iMin,iMax |
582 |
|
|
gV(i,j,k,bi,bj) = gV(i,j,k,bi,bj)+vF(i,j) |
583 |
|
|
ENDDO |
584 |
|
|
ENDDO |
585 |
|
|
ENDIF |
586 |
|
|
C- No-slip BCs impose a drag at bottom |
587 |
|
|
IF (momViscosity.AND.bottomDragTerms) THEN |
588 |
|
|
CALL MOM_V_BOTTOMDRAG(bi,bj,k,vFld,KE,KappaRV,vF,myThid) |
589 |
|
|
DO j=jMin,jMax |
590 |
|
|
DO i=iMin,iMax |
591 |
|
|
gV(i,j,k,bi,bj) = gV(i,j,k,bi,bj)+vF(i,j) |
592 |
|
|
ENDDO |
593 |
|
|
ENDDO |
594 |
|
|
ENDIF |
595 |
|
|
|
596 |
jmc |
1.12 |
C-- Forcing term (moved to timestep.F) |
597 |
|
|
c IF (momForcing) |
598 |
|
|
c & CALL EXTERNAL_FORCING_V( |
599 |
|
|
c I iMin,iMax,jMin,jMax,bi,bj,k, |
600 |
|
|
c I myTime,myThid) |
601 |
adcroft |
1.1 |
|
602 |
|
|
C-- Metric terms for curvilinear grid systems |
603 |
adcroft |
1.5 |
IF (useNHMTerms) THEN |
604 |
adcroft |
1.1 |
C o Spherical polar grid metric terms |
605 |
|
|
CALL MOM_V_METRIC_NH(bi,bj,k,vFld,wVel,mT,myThid) |
606 |
|
|
DO j=jMin,jMax |
607 |
|
|
DO i=iMin,iMax |
608 |
|
|
gV(i,j,k,bi,bj) = gV(i,j,k,bi,bj)+mTFacV*mT(i,j) |
609 |
|
|
ENDDO |
610 |
|
|
ENDDO |
611 |
adcroft |
1.5 |
ENDIF |
612 |
|
|
IF (usingSphericalPolarMTerms) THEN |
613 |
adcroft |
1.1 |
CALL MOM_V_METRIC_SPHERE(bi,bj,k,uFld,mT,myThid) |
614 |
|
|
DO j=jMin,jMax |
615 |
|
|
DO i=iMin,iMax |
616 |
|
|
gV(i,j,k,bi,bj) = gV(i,j,k,bi,bj)+mTFacV*mT(i,j) |
617 |
|
|
ENDDO |
618 |
|
|
ENDDO |
619 |
|
|
ENDIF |
620 |
afe |
1.19 |
IF (usingCylindricalGrid) THEN |
621 |
|
|
CALL MOM_V_METRIC_CYLINDER(bi,bj,k,uFld,vFld,mT,myThid) |
622 |
|
|
DO j=jMin,jMax |
623 |
|
|
DO i=iMin,iMax |
624 |
|
|
gV(i,j,k,bi,bj) = gV(i,j,k,bi,bj)+mTFacV*mT(i,j) |
625 |
|
|
ENDDO |
626 |
|
|
ENDDO |
627 |
|
|
ENDIF |
628 |
adcroft |
1.1 |
|
629 |
|
|
C-- Set dv/dt on boundaries to zero |
630 |
|
|
DO j=jMin,jMax |
631 |
|
|
DO i=iMin,iMax |
632 |
|
|
gV(i,j,k,bi,bj) = gV(i,j,k,bi,bj)*_maskS(i,j,k,bi,bj) |
633 |
|
|
ENDDO |
634 |
|
|
ENDDO |
635 |
|
|
|
636 |
|
|
C-- Coriolis term |
637 |
|
|
C Note. As coded here, coriolis will not work with "thin walls" |
638 |
jmc |
1.12 |
c IF (useCDscheme) THEN |
639 |
|
|
c CALL MOM_CDSCHEME(bi,bj,k,dPhiHydX,dPhiHydY,myThid) |
640 |
|
|
c ELSE |
641 |
|
|
IF (.NOT.useCDscheme) THEN |
642 |
|
|
CALL MOM_U_CORIOLIS(bi,bj,k,vFld,cf,myThid) |
643 |
|
|
DO j=jMin,jMax |
644 |
|
|
DO i=iMin,iMax |
645 |
|
|
gU(i,j,k,bi,bj) = gU(i,j,k,bi,bj)+fuFac*cf(i,j) |
646 |
|
|
ENDDO |
647 |
|
|
ENDDO |
648 |
|
|
CALL MOM_V_CORIOLIS(bi,bj,k,uFld,cf,myThid) |
649 |
|
|
DO j=jMin,jMax |
650 |
|
|
DO i=iMin,iMax |
651 |
|
|
gV(i,j,k,bi,bj) = gV(i,j,k,bi,bj)+fvFac*cf(i,j) |
652 |
|
|
ENDDO |
653 |
|
|
ENDDO |
654 |
|
|
ENDIF |
655 |
|
|
|
656 |
adcroft |
1.7 |
IF (nonHydrostatic.OR.quasiHydrostatic) THEN |
657 |
adcroft |
1.6 |
CALL MOM_U_CORIOLIS_NH(bi,bj,k,wVel,cf,myThid) |
658 |
|
|
DO j=jMin,jMax |
659 |
|
|
DO i=iMin,iMax |
660 |
|
|
gU(i,j,k,bi,bj) = gU(i,j,k,bi,bj)+fuFac*cf(i,j) |
661 |
|
|
ENDDO |
662 |
|
|
ENDDO |
663 |
|
|
ENDIF |
664 |
adcroft |
1.1 |
|
665 |
|
|
RETURN |
666 |
|
|
END |