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revision 1.81 by adcroft, Wed Sep 19 02:43:27 2001 UTC revision 1.82 by cnh, Wed Sep 26 18:09:14 2001 UTC
# Line 3  C $Name$ Line 3  C $Name$
3    
4  #include "CPP_OPTIONS.h"  #include "CPP_OPTIONS.h"
5    
6    CBOP
7    C     !ROUTINE: DYNAMICS
8    C     !INTERFACE:
9        SUBROUTINE DYNAMICS(myTime, myIter, myThid)        SUBROUTINE DYNAMICS(myTime, myIter, myThid)
10  C     /==========================================================\  C     !DESCRIPTION: \bv
11  C     | SUBROUTINE DYNAMICS                                      |  C     *==========================================================*
12  C     | o Controlling routine for the explicit part of the model |  C     | SUBROUTINE DYNAMICS                                      
13  C     |   dynamics.                                              |  C     | o Controlling routine for the explicit part of the model  
14  C     |==========================================================|  C     |   dynamics.                                              
15  C     | This routine evaluates the "dynamics" terms for each     |  C     *==========================================================*
16  C     | block of ocean in turn. Because the blocks of ocean have |  C     | This routine evaluates the "dynamics" terms for each      
17  C     | overlap regions they are independent of one another.     |  C     | block of ocean in turn. Because the blocks of ocean have  
18  C     | If terms involving lateral integrals are needed in this  |  C     | overlap regions they are independent of one another.      
19  C     | routine care will be needed. Similarly finite-difference |  C     | If terms involving lateral integrals are needed in this  
20  C     | operations with stencils wider than the overlap region   |  C     | routine care will be needed. Similarly finite-difference  
21  C     | require special consideration.                           |  C     | operations with stencils wider than the overlap region    
22  C     | Notes                                                    |  C     | require special consideration.                            
23  C     | =====                                                    |  C     | The algorithm...
24  C     | C*P* comments indicating place holders for which code is |  C     |
25  C     |      presently being developed.                          |  C     | "Correction Step"
26  C     \==========================================================/  C     | =================
27    C     | Here we update the horizontal velocities with the surface
28    C     | pressure such that the resulting flow is either consistent
29    C     | with the free-surface evolution or the rigid-lid:
30    C     |   U[n] = U* + dt x d/dx P
31    C     |   V[n] = V* + dt x d/dy P
32    C     |
33    C     | "Calculation of Gs"
34    C     | ===================
35    C     | This is where all the accelerations and tendencies (ie.
36    C     | physics, parameterizations etc...) are calculated
37    C     |   rho = rho ( theta[n], salt[n] )
38    C     |   b   = b(rho, theta)
39    C     |   K31 = K31 ( rho )
40    C     |   Gu[n] = Gu( u[n], v[n], wVel, b, ... )
41    C     |   Gv[n] = Gv( u[n], v[n], wVel, b, ... )
42    C     |   Gt[n] = Gt( theta[n], u[n], v[n], wVel, K31, ... )
43    C     |   Gs[n] = Gs( salt[n], u[n], v[n], wVel, K31, ... )
44    C     |
45    C     | "Time-stepping" or "Prediction"
46    C     | ================================
47    C     | The models variables are stepped forward with the appropriate
48    C     | time-stepping scheme (currently we use Adams-Bashforth II)
49    C     | - For momentum, the result is always *only* a "prediction"
50    C     | in that the flow may be divergent and will be "corrected"
51    C     | later with a surface pressure gradient.
52    C     | - Normally for tracers the result is the new field at time
53    C     | level [n+1} *BUT* in the case of implicit diffusion the result
54    C     | is also *only* a prediction.
55    C     | - We denote "predictors" with an asterisk (*).
56    C     |   U* = U[n] + dt x ( 3/2 Gu[n] - 1/2 Gu[n-1] )
57    C     |   V* = V[n] + dt x ( 3/2 Gv[n] - 1/2 Gv[n-1] )
58    C     |   theta[n+1] = theta[n] + dt x ( 3/2 Gt[n] - 1/2 atG[n-1] )
59    C     |   salt[n+1] = salt[n] + dt x ( 3/2 Gt[n] - 1/2 atG[n-1] )
60    C     | With implicit diffusion:
61    C     |   theta* = theta[n] + dt x ( 3/2 Gt[n] - 1/2 atG[n-1] )
62    C     |   salt* = salt[n] + dt x ( 3/2 Gt[n] - 1/2 atG[n-1] )
63    C     |   (1 + dt * K * d_zz) theta[n] = theta*
64    C     |   (1 + dt * K * d_zz) salt[n] = salt*
65    C     |
66    C     *==========================================================*
67    C     \ev
68    C     !USES:
69        IMPLICIT NONE        IMPLICIT NONE
   
70  C     == Global variables ===  C     == Global variables ===
71  #include "SIZE.h"  #include "SIZE.h"
72  #include "EEPARAMS.h"  #include "EEPARAMS.h"
# Line 32  C     == Global variables === Line 76  C     == Global variables ===
76  #ifdef ALLOW_PASSIVE_TRACER  #ifdef ALLOW_PASSIVE_TRACER
77  #include "TR1.h"  #include "TR1.h"
78  #endif  #endif
   
79  #ifdef ALLOW_AUTODIFF_TAMC  #ifdef ALLOW_AUTODIFF_TAMC
80  # include "tamc.h"  # include "tamc.h"
81  # include "tamc_keys.h"  # include "tamc_keys.h"
# Line 44  C     == Global variables === Line 87  C     == Global variables ===
87  #  include "GMREDI.h"  #  include "GMREDI.h"
88  # endif  # endif
89  #endif /* ALLOW_AUTODIFF_TAMC */  #endif /* ALLOW_AUTODIFF_TAMC */
   
90  #ifdef ALLOW_TIMEAVE  #ifdef ALLOW_TIMEAVE
91  #include "TIMEAVE_STATV.h"  #include "TIMEAVE_STATV.h"
92  #endif  #endif
93    
94    C     !CALLING SEQUENCE:
95    C     DYNAMICS()
96    C      |
97    C      |-- CALC_GRAD_PHI_SURF
98    C      |
99    C      |-- CALC_VISCOSITY
100    C      |
101    C      |-- CALC_PHI_HYD  
102    C      |
103    C      |-- MOM_FLUXFORM  
104    C      |
105    C      |-- MOM_VECINV    
106    C      |
107    C      |-- TIMESTEP      
108    C      |
109    C      |-- OBCS_APPLY_UV
110    C      |
111    C      |-- IMPLDIFF      
112    C      |
113    C      |-- OBCS_APPLY_UV
114    C      |
115    C      |-- CALL TIMEAVE_CUMUL_1T
116    C      |-- CALL TIMEAVE_CUMULATE
117    C      |-- CALL DEBUG_STATS_RL
118    
119    C     !INPUT/OUTPUT PARAMETERS:
120  C     == Routine arguments ==  C     == Routine arguments ==
121  C     myTime - Current time in simulation  C     myTime - Current time in simulation
122  C     myIter - Current iteration number in simulation  C     myIter - Current iteration number in simulation
# Line 57  C     myThid - Thread number for this in Line 125  C     myThid - Thread number for this in
125        INTEGER myIter        INTEGER myIter
126        INTEGER myThid        INTEGER myThid
127    
128    C     !LOCAL VARIABLES:
129  C     == Local variables  C     == Local variables
130  C     fVer[STUV]               o fVer: Vertical flux term - note fVer  C     fVer[STUV]               o fVer: Vertical flux term - note fVer
131  C                                      is "pipelined" in the vertical  C                                      is "pipelined" in the vertical
# Line 147  C         salt* = salt[n] + dt x ( 3/2 G Line 216  C         salt* = salt[n] + dt x ( 3/2 G
216  C         (1 + dt * K * d_zz) theta[n] = theta*  C         (1 + dt * K * d_zz) theta[n] = theta*
217  C         (1 + dt * K * d_zz) salt[n] = salt*  C         (1 + dt * K * d_zz) salt[n] = salt*
218  C---  C---
219    CEOP
220    
221  C--   Set up work arrays with valid (i.e. not NaN) values  C--   Set up work arrays with valid (i.e. not NaN) values
222  C     These inital values do not alter the numerical results. They  C     These inital values do not alter the numerical results. They
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