/[MITgcm]/MITgcm/model/inc/PARAMS.h
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revision 1.12 by adcroft, Thu May 28 16:19:50 1998 UTC revision 1.72 by adcroft, Fri Jun 21 18:36:04 2002 UTC
# Line 1  Line 1 
1  C $Header$  C $Header$
2    C $Name$
3  C  C
4  C     /==========================================================\  CBOP
5  C     | PARAMS.h                                                 |  C    !ROUTINE: PARAMS.h
6  C     | o Header file defining model "parameters".               |  C    !INTERFACE:
7  C     |==========================================================|  C    include PARAMS.h
8  C     | The values from the model's standard input file are      |  C    !DESCRIPTION: \bv
9  C     | stored into the variables held here. Notes describing    |  C     *==========================================================*
10  C     | the parameters can also be found here.                   |  C     | PARAMS.h                                                  
11  C     \==========================================================/  C     | o Header file defining model "parameters".                
12    C     *==========================================================*
13    C     | The values from the model standard input file are        
14    C     | stored into the variables held here. Notes describing    
15    C     | the parameters can also be found here.                    
16    C     *==========================================================*
17    C     \ev
18    CEOP
19    
20    C     Macros for special grid options
21    #include "PARAMS_MACROS.h"
22    
23  C--   Contants  C--   Contants
24  C     Useful physical values  C     Useful physical values
# Line 17  C     Useful physical values Line 28  C     Useful physical values
28        PARAMETER ( deg2rad = 2.D0*PI/360.D0           )        PARAMETER ( deg2rad = 2.D0*PI/360.D0           )
29    
30  C     Symbolic values  C     Symbolic values
31  C     precXXXX - Used to indicate what precision to use for  C     precXXXX :: Used to indicate what precision to use for
32  C                dumping model state.  C                dumping model state.
33        INTEGER precFloat32        INTEGER precFloat32
34        PARAMETER ( precFloat32 = 0 )        PARAMETER ( precFloat32 = 32 )
35        INTEGER precFloat64        INTEGER precFloat64
36        PARAMETER ( precFloat64 = 1 )        PARAMETER ( precFloat64 = 64 )
37    C     UNSET_xxx :: Used to indicate variables that have not been given a value
38          Real*8 UNSET_FLOAT8
39          PARAMETER ( UNSET_FLOAT8 = 1.234567D5 )
40          Real*4 UNSET_FLOAT4
41          PARAMETER ( UNSET_FLOAT4 = 1.234567E5 )
42          _RL    UNSET_RL    
43          PARAMETER ( UNSET_RL     = 1.234567D5 )
44          _RS    UNSET_RS    
45          PARAMETER ( UNSET_RS     = 1.234567E5 )
46          INTEGER UNSET_I
47          PARAMETER ( UNSET_I      = 123456789  )
48    
49  C     Checkpoint data  C     Checkpoint data
50        INTEGER maxNoChkptLev        INTEGER maxNoChkptLev
51        PARAMETER ( maxNoChkptLev = 2 )        PARAMETER ( maxNoChkptLev = 2 )
52    
53  C--   COMMON /PARM_C/ Character valued parameters used by the model.  C--   COMMON /PARM_C/ Character valued parameters used by the model.
54  C     checkPtSuff - List of checkpoint file suffices  C     checkPtSuff :: List of checkpoint file suffices
55        COMMON /PARM_C/ checkPtSuff  C     bathyFile   :: File containing bathymetry. If not defined bathymetry
56    C                   is taken from inline function.
57    C     topoFile    :: File containing the topography of the surface (unit=m)
58    C                   (mainly used for the atmosphere = ground height).
59    C     hydrogThetaFile :: File containing initial hydrographic data for potential
60    C                       temperature.
61    C     hydrogSaltFile  :: File containing initial hydrographic data for salinity.
62    C     zonalWindFile   :: File containing zonal wind data
63    C     meridWindFile   :: File containing meridional wind data
64    C     thetaClimFile   :: File containing theta climataology used
65    C                       in relaxation term -lambda(theta-theta*)
66    C     saltClimFile    :: File containing salt climataology used
67    C                       in relaxation term -lambda(salt-salt*)
68    C     surfQfile       :: File containing surface heat flux
69    C     surfQswfile     :: File containing surface shortwave radiation
70    C     dQdTfile        :: File containing thermal relaxation coefficient
71    C     EmPmRfile       :: File containing surface fresh water flux
72    C     buoyancyRelation :: Flag used to indicate which relation to use to
73    C                        get buoyancy.
74          COMMON /PARM_C/ checkPtSuff,
75         &                bathyFile, topoFile,
76         &                hydrogThetaFile, hydrogSaltFile,
77         &                zonalWindFile, meridWindFile, thetaClimFile,
78         &                saltClimFile, buoyancyRelation,
79         &                EmPmRfile, surfQfile, surfQswfile,
80         &                uVelInitFile, vVelInitFile, pSurfInitFile,
81         &                dQdTfile
82        CHARACTER*(5) checkPtSuff(maxNoChkptLev)        CHARACTER*(5) checkPtSuff(maxNoChkptLev)
83          CHARACTER*(MAX_LEN_FNAM) bathyFile, topoFile
84          CHARACTER*(MAX_LEN_FNAM) hydrogThetaFile
85          CHARACTER*(MAX_LEN_FNAM) hydrogSaltFile
86          CHARACTER*(MAX_LEN_FNAM) zonalWindFile
87          CHARACTER*(MAX_LEN_FNAM) meridWindFile
88          CHARACTER*(MAX_LEN_FNAM) thetaClimFile
89          CHARACTER*(MAX_LEN_FNAM) saltClimFile
90          CHARACTER*(MAX_LEN_FNAM) surfQfile
91          CHARACTER*(MAX_LEN_FNAM) surfQswfile
92          CHARACTER*(MAX_LEN_FNAM) EmPmRfile
93          CHARACTER*(MAX_LEN_FNAM) buoyancyRelation
94          CHARACTER*(MAX_LEN_FNAM) uVelInitFile
95          CHARACTER*(MAX_LEN_FNAM) vVelInitFile
96          CHARACTER*(MAX_LEN_FNAM) pSurfInitFile
97          CHARACTER*(MAX_LEN_FNAM) dQdTfile
98    
99  C--   COMMON /PARM_I/ Integer valued parameters used by the model.  C--   COMMON /PARM_I/ Integer valued parameters used by the model.
100  C     cg2dMaxIters        - Maximum number of iterations in the  C     cg2dMaxIters        :: Maximum number of iterations in the
101  C                           two-dimensional con. grad solver.  C                           two-dimensional con. grad solver.
102  C     cg2dChkResFreq      - Frequency with which to check residual  C     cg2dChkResFreq      :: Frequency with which to check residual
103    C                           in con. grad solver.
104    C     cg3dMaxIters        :: Maximum number of iterations in the
105    C                           three-dimensional con. grad solver.
106    C     cg3dChkResFreq      :: Frequency with which to check residual
107  C                           in con. grad solver.  C                           in con. grad solver.
108  C     nIter0              - Start time-step number of for this run  C     nIter0              :: Start time-step number of for this run
109  C     nTimeSteps          - Number of timesteps to execute  C     nTimeSteps          :: Number of timesteps to execute
110  C     numStepsPerPickup   - For offline setup. Frequency of pickup  C     numStepsPerPickup   :: For offline setup. Frequency of pickup
111  C                           of flow fields.  C                           of flow fields.
112  C     writeStatePrec      - Precision used for writing model state.  C     writeStatePrec      :: Precision used for writing model state.
113  C     writeBinaryPrec     - Precision used for writing binary files  C     writeBinaryPrec     :: Precision used for writing binary files
114  C     readBinaryPrec      - Precision used for reading binary files  C     readBinaryPrec      :: Precision used for reading binary files
115  C     nCheckLev           - Holds current checkpoint level  C     nCheckLev           :: Holds current checkpoint level
116    C     nonlinFreeSurf      :: option related to non-linear free surface
117    C                           =0 Linear free surface ; >0 Non-linear
118    
119        COMMON /PARM_I/        COMMON /PARM_I/
120       &        cg2dMaxIters,       &        cg2dMaxIters,
121       &        cg2dChkResFreq,       &        cg2dChkResFreq,
122       &        nIter0, nTimeSteps,       &        cg3dMaxIters,
123         &        cg3dChkResFreq,
124         &        nIter0, nTimeSteps, nEndIter,
125       &        numStepsPerPickup,       &        numStepsPerPickup,
126       &        writeStatePrec, nCheckLev,       &        writeStatePrec, nCheckLev,
127       &        writeBinaryPrec, readBinaryPrec       &        writeBinaryPrec, readBinaryPrec,
128         &        nonlinFreeSurf,
129         &        tempAdvScheme, saltAdvScheme, tracerAdvScheme
130        INTEGER cg2dMaxIters        INTEGER cg2dMaxIters
131        INTEGER cg2dChkResFreq        INTEGER cg2dChkResFreq
132          INTEGER cg3dMaxIters
133          INTEGER cg3dChkResFreq
134        INTEGER nIter0        INTEGER nIter0
135        INTEGER nTimeSteps        INTEGER nTimeSteps
136          INTEGER nEndIter
137        INTEGER numStepsPerPickup        INTEGER numStepsPerPickup
138        INTEGER writeStatePrec        INTEGER writeStatePrec
139        INTEGER writeBinaryPrec        INTEGER writeBinaryPrec
140        INTEGER readBinaryPrec        INTEGER readBinaryPrec
141        INTEGER nCheckLev        INTEGER nCheckLev
142          INTEGER nonlinFreeSurf
143          INTEGER tempAdvScheme
144          INTEGER saltAdvScheme
145          INTEGER tracerAdvScheme
146    
147  C--   COMMON /PARM_L/ Logical valued parameters used by the model.  C--   COMMON /PARM_L/ Logical valued parameters used by the model.
148  C     usingCartesianGrid - If TRUE grid generation will be in a cartesian  C     usingCartesianGrid :: If TRUE grid generation will be in a cartesian
149  C                          coordinate frame.  C                          coordinate frame.
150  C     usingSphericalPolarGrid - If TRUE grid generation will be in a  C     usingSphericalPolarGrid :: If TRUE grid generation will be in a
151  C                               spherical polar frame.  C                               spherical polar frame.
152  C     momViscosity  - Flag which turns momentum friction terms on and off.  C     no_slip_sides :: Impose "no-slip" at lateral boundaries.
153  C     momAdvection  - Flag which turns advection of momentum on and off.  C     no_slip_bottom :: Impose "no-slip" at bottom boundary.
154  C     momForcing    - Flag which turns external forcing of momentum on  C     staggerTimeStep :: enable a Stagger time stepping T,S Rho then U,V
155    C     momViscosity  :: Flag which turns momentum friction terms on and off.
156    C     momAdvection  :: Flag which turns advection of momentum on and off.
157    C     momForcing    :: Flag which turns external forcing of momentum on
158  C                     and off.  C                     and off.
159  C     momPressureForcing - Flag which turns pressure term in momentum equation  C     momPressureForcing :: Flag which turns pressure term in momentum equation
160  C                          on and off.  C                          on and off.
161  C     useCoriolis   - Flag which turns the coriolis terms on and off.  C     metricTerms   :: Flag which turns metric terms on or off.
162  C     tempDiffusion - Flag which turns diffusion of temperature on  C     usingSphericalPolarMTerms :: If TRUE use spherical polar metric terms.
163    C     useCoriolis   :: Flag which turns the coriolis terms on and off.
164    C     tempDiffusion :: Flag which turns diffusion of temperature on
165  C                     and off.  C                     and off.
166  C     tempAdvection - Flag which turns advection of temperature on  C     tempAdvection :: Flag which turns advection of temperature on
167  C                     and off.  C                     and off.
168  C     tempForcing   - Flag which turns external forcing of temperature on  C     tempForcing   :: Flag which turns external forcing of temperature on
169  C                     and off.  C                     and off.
170  C     saltDiffusion - Flag which turns diffusion of salinit on  C     saltDiffusion :: Flag which turns diffusion of salinity on
171  C                     and off.  C                     and off.
172  C     saltAdvection - Flag which turns advection of salinit on  C     saltAdvection :: Flag which turns advection of salinity on
173  C                     and off.  C                     and off.
174  C     saltForcing   - Flag which turns external forcing of salinit on  C     saltForcing   :: Flag which turns external forcing of salinity on
175  C                     and off.  C                     and off.
176  C     implicitFreeSurface - Set to true to use implcit free surface  C     useRealFreshWaterFlux :: if True (=Natural BCS), treats P+R-E flux
177  C     rigidLid            - Set to true to use rigid lid  C                         as a real Fresh Water (=> changes the Sea Level)
178  C     momStepping   - Turns momentum equation time-stepping off  C                         if F, converts P+R-E to salt flux (no SL effect)
179  C     momStepping   - Turns temperature equation time-stepping off  C     rigidLid            :: Set to true to use rigid lid
180    C     implicitFreeSurface :: Set to true to use implcit free surface
181    C     exactConserv        :: Set to true to conserve exactly the total Volume
182    C     uniformLin_PhiSurf  :: Set to true to use a uniform Bo_surf in the
183    C                           linear relation Phi_surf = Bo_surf*eta
184    C     momStepping   :: Turns momentum equation time-stepping off
185    C     tempStepping  :: Turns temperature equation time-stepping off
186    C     saltStepping  :: Turns salinity equation time-stepping off
187    C     tr1Stepping   :: Turns passive tracer 1 time-stepping on/off
188    C     useConstantF  :: Coriolis parameter set to f0
189    C     useBetaPlaneF :: Coriolis parameter set to f0 + beta.y
190    C     useSphereF    :: Coriolis parameter set to 2.omega.sin(phi)
191    C     useJamartWetPoints :: Use wet-point method for Coriolis (Jamart and Ozer, 1986)
192    C     implicitDiffusion :: Turns implicit vertical diffusion on
193    C     implicitViscosity :: Turns implicit vertical viscosity on
194    C     multiDimAdvection :: Flag that enable multi-dimension advection
195    C     forcing_In_AB :: if False, put forcing (Temp,Salt,Tracers) contribution
196    C                      out off Adams-Bashforth time stepping.
197    C     doThetaClimRelax :: Set true if relaxation to temperature
198    C                        climatology is required.
199    C     doSaltClimRelax  :: Set true if relaxation to salinity
200    C                        climatology is required.
201    C     periodicExternalForcing :: Set true if forcing is time-dependant
202    C     usingPCoords     :: Set to indicate that we are working in pressure
203    C                        coords.
204    C     usingZCoords     :: Set to indicate that we are working in height
205    C                        coords.
206    C     setCenterDr    :: set cell Center depth and put Interface at the middle
207    C     nonHydrostatic :: Using non-hydrostatic terms
208    C     globalFiles    :: Selects between "global" and "tiled" files
209    C     allowFreezing  :: Allows water to freeze and form ice
210    C     groundAtK1  :: put the surface(k=1) at the Lower Boundary (=ground)
211        COMMON /PARM_L/ usingCartesianGrid, usingSphericalPolarGrid,        COMMON /PARM_L/ usingCartesianGrid, usingSphericalPolarGrid,
212       & momViscosity, momAdvection, momForcing, useCoriolis, momPressureForcing,       & usingCurvilinearGrid,
213         & no_slip_sides,no_slip_bottom,
214         & staggerTimeStep,
215         & momViscosity, momAdvection, momForcing, useCoriolis,
216         & momPressureForcing, vectorInvariantMomentum,
217       & tempDiffusion, tempAdvection, tempForcing,       & tempDiffusion, tempAdvection, tempForcing,
218       & saltDiffusion, saltAdvection, saltForcing,       & saltDiffusion, saltAdvection, saltForcing,
219       & implicitFreeSurface, rigidLid, momStepping, tempStepping       & useRealFreshWaterFlux,
220         & rigidLid, implicitFreeSurface, exactConserv, uniformLin_PhiSurf,
221         & momStepping, tempStepping, saltStepping, tr1Stepping,
222         & metricTerms, usingSphericalPolarMTerms,
223         & useConstantF, useBetaPlaneF, useSphereF,
224         & useEnergyConservingCoriolis, useJamartWetPoints,
225         & implicitDiffusion, implicitViscosity,
226         & multiDimAdvection, forcing_In_AB,
227         & doThetaClimRelax, doSaltClimRelax, doTr1ClimRelax,
228         & periodicExternalForcing,
229         & usingPCoords, usingZCoords, setCenterDr,
230         & nonHydrostatic, globalFiles,
231         & allowFreezing, groundAtK1,
232         & usePickupBeforeC35, debugMode,
233         & readPickupWithTracer, writePickupWithTracer
234        LOGICAL usingCartesianGrid        LOGICAL usingCartesianGrid
235        LOGICAL usingSphericalPolarGrid        LOGICAL usingSphericalPolarGrid
236          LOGICAL usingCurvilinearGrid
237          LOGICAL usingSphericalPolarMTerms
238          LOGICAL no_slip_sides
239          LOGICAL no_slip_bottom
240          LOGICAL staggerTimeStep
241        LOGICAL momViscosity        LOGICAL momViscosity
242        LOGICAL momAdvection        LOGICAL momAdvection
243        LOGICAL momForcing        LOGICAL momForcing
244        LOGICAL momPressureForcing        LOGICAL momPressureForcing
245        LOGICAL useCoriolis        LOGICAL useCoriolis
246          LOGICAL vectorInvariantMomentum
247        LOGICAL tempDiffusion        LOGICAL tempDiffusion
248        LOGICAL tempAdvection        LOGICAL tempAdvection
249        LOGICAL tempForcing        LOGICAL tempForcing
250        LOGICAL saltDiffusion        LOGICAL saltDiffusion
251        LOGICAL saltAdvection        LOGICAL saltAdvection
252        LOGICAL saltForcing        LOGICAL saltForcing
253        LOGICAL implicitFreeSurface        LOGICAL useRealFreshWaterFlux
254        LOGICAL rigidLid        LOGICAL rigidLid
255          LOGICAL implicitFreeSurface
256          LOGICAL exactConserv
257          LOGICAL uniformLin_PhiSurf
258        LOGICAL momStepping        LOGICAL momStepping
259        LOGICAL tempStepping        LOGICAL tempStepping
260          LOGICAL saltStepping
261          LOGICAL tr1Stepping
262          LOGICAL metricTerms
263          LOGICAL useConstantF
264          LOGICAL useBetaPlaneF
265          LOGICAL useSphereF
266          LOGICAL useEnergyConservingCoriolis
267          LOGICAL useJamartWetPoints
268          LOGICAL implicitDiffusion
269          LOGICAL implicitViscosity
270          LOGICAL multiDimAdvection
271          LOGICAL forcing_In_AB
272          LOGICAL doThetaClimRelax
273          LOGICAL doSaltClimRelax
274          LOGICAL doTr1ClimRelax
275          LOGICAL periodicExternalForcing
276          LOGICAL usingPCoords
277          LOGICAL usingZCoords
278          LOGICAL setCenterDr
279          LOGICAL nonHydrostatic
280          LOGICAL globalFiles
281          LOGICAL allowFreezing
282          LOGICAL groundAtK1
283          LOGICAL usePickupBeforeC35
284          LOGICAL debugMode
285          LOGICAL readPickupWithTracer
286          LOGICAL writePickupWithTracer
287    
288  C--   COMMON /PARM_R/ "Real" valued parameters used by the model.  C--   COMMON /PARM_R/ "Real" valued parameters used by the model.
289  C     cg2dTargetResidual  C     gg2dTargetResidual
290  C               - Target residual for cg2d solver.  C          :: Target residual for cg2d solver; no unit (RHS normalisation)
291  C     cg2dpcOffDFac - Averaging weight for preconditioner off-diagonal.  C     cg2dTargetResWunit
292    C          :: Target residual for cg2d solver; W unit (No RHS normalisation)
293    C     cg3dTargetResidual
294    C               :: Target residual for cg3d solver.
295    C     cg2dpcOffDFac :: Averaging weight for preconditioner off-diagonal.
296  C     Note. 20th May 1998  C     Note. 20th May 1998
297  C           I made a weird discovery! In the model paper we argue  C           I made a weird discovery! In the model paper we argue
298  C           for the form of the preconditioner used here ( see  C           for the form of the preconditioner used here ( see
# Line 131  C           number of iterations for con Line 306  C           number of iterations for con
306  C           drop form 192 -> 134! Need to investigate this further!  C           drop form 192 -> 134! Need to investigate this further!
307  C           For now I have introduced a parameter cg2dpcOffDFac which  C           For now I have introduced a parameter cg2dpcOffDFac which
308  C           defaults to 0.51 but can be set at runtime.  C           defaults to 0.51 but can be set at runtime.
309  C     delZ      - Vertical grid spacing ( m ) - delZ is the distance  C     delP      :: Vertical grid spacing ( Pa ).
310  C                 between "w" surfaces.  C     delZ      :: Vertical grid spacing ( m  ).
311  C     delX      - Separation between cell faces (m) or (deg), depending  C     delR      :: Vertical grid spacing ( units of r ).
312    C     delRc     :: Vertical grid spacing between cell centers (r unit).
313    C     delX      :: Separation between cell faces (m) or (deg), depending
314  C     delY        on input flags.  C     delY        on input flags.
315  C     gravity   - Accel. due to gravity ( m/s^2 )  C     gravity   :: Accel. due to gravity ( m/s^2 )
316  C     gBaro     - Accel. due to gravity used in barotropic equation ( m/s^2 )  C     recip_gravity and its inverse
317  C     ronil     - Reference density  C     gBaro     :: Accel. due to gravity used in barotropic equation ( m/s^2 )
318  C     startTime - Start time for model ( s )  C     ronil     :: Reference density
319  C     phiMin    - Latitude of southern most cell face.  C     rhoConst  :: Vertically constant reference density
320  C     thetaMin  - Longitude of western most cell face (this  C     startTime :: Start time for model ( s )
321    C     phiMin    :: Latitude of southern most cell face.
322    C     thetaMin  :: Longitude of western most cell face (this
323  C                 is an "inert" parameter but it is included  C                 is an "inert" parameter but it is included
324  C                 to make geographical references simple.)  C                 to make geographical references simple.)
325  C     rSphere   - Radius of sphere for a spherical polar grid ( m ).  C     rSphere   :: Radius of sphere for a spherical polar grid ( m ).
326  C     f0        - Reference coriolis parameter ( 1/s )  C     recip_RSphere  :: Reciprocal radius of sphere ( m ).
327    C     f0        :: Reference coriolis parameter ( 1/s )
328  C                 ( Southern edge f for beta plane )  C                 ( Southern edge f for beta plane )
329  C     beta      - df/dy ( s^-1.m^-1 )  C     beta      :: df/dy ( s^-1.m^-1 )
330  C     viscAh    - Eddy viscosity coeff. for mixing of  C     omega     :: Angular velocity ( rad/s )
331    C     viscAh    :: Eddy viscosity coeff. for mixing of
332  C                 momentum laterally ( m^2/s )  C                 momentum laterally ( m^2/s )
333  C     viscAz    - Eddy viscosity coeff. for mixing of  C     viscAz    :: Eddy viscosity coeff. for mixing of
334  C                 momentum vertically ( m^2/s )  C                 momentum vertically ( m^2/s )
335  C     viscA4    - Biharmonic viscosity coeff. for mixing of  C     viscAp    :: Eddy viscosity coeff. for mixing of
336    C                 momentum vertically ( Pa^2/s )
337    C     viscAr    :: Eddy viscosity coeff. for mixing of
338    C                 momentum vertically ( units of r^2/s )
339    C     viscA4    :: Biharmonic viscosity coeff. for mixing of
340  C                 momentum laterally ( m^4/s )  C                 momentum laterally ( m^4/s )
341  C     diffKhT   - Laplacian diffusion coeff. for mixing of  C     diffKhT   :: Laplacian diffusion coeff. for mixing of
342  C                 heat laterally ( m^2/s )  C                 heat laterally ( m^2/s )
343  C     diffKzT   - Laplacian diffusion coeff. for mixing of  C     diffKzT   :: Laplacian diffusion coeff. for mixing of
344  C                 heat vertically ( m^2/s )  C                 heat vertically ( m^2/s )
345  C     diffK4T   - Biharmonic diffusion coeff. for mixing of  C     diffKpT   :: Laplacian diffusion coeff. for mixing of
346    C                 heat vertically ( Pa^2/s )
347    C     diffKrT   :: Laplacian diffusion coeff. for mixing of
348    C                 heat vertically ( units of r^2/s )
349    C     diffK4T   :: Biharmonic diffusion coeff. for mixing of
350  C                 heat laterally ( m^4/s )  C                 heat laterally ( m^4/s )
351  C     diffKhS  -  Laplacian diffusion coeff. for mixing of  C     diffKhS  ::  Laplacian diffusion coeff. for mixing of
352  C                 salt laterally ( m^2/s )  C                 salt laterally ( m^2/s )
353  C     diffKzS   - Laplacian diffusion coeff. for mixing of  C     diffKzS   :: Laplacian diffusion coeff. for mixing of
354  C                 salt vertically ( m^2/s )  C                 salt vertically ( m^2/s )
355  C     diffK4S   - Biharmonic diffusion coeff. for mixing of  C     diffKpS   :: Laplacian diffusion coeff. for mixing of
356    C                 salt vertically ( Pa^2/s )
357    C     diffKrS   :: Laplacian diffusion coeff. for mixing of
358    C                 salt vertically ( units of r^2/s )
359    C     diffK4S   :: Biharmonic diffusion coeff. for mixing of
360  C                 salt laterally ( m^4/s )  C                 salt laterally ( m^4/s )
361  C     deltaT    - Default timestep ( s )  C     deltaT    :: Default timestep ( s )
362  C     deltaTClock  - Timestep used as model "clock". This determines the  C     deltaTClock  :: Timestep used as model "clock". This determines the
363  C                    IO frequencies and is used in tagging output. It can  C                    IO frequencies and is used in tagging output. It can
364  C                    be totally different to the dynamical time. Typically  C                    be totally different to the dynamical time. Typically
365  C                    it will be the deep-water timestep for accelerated runs.  C                    it will be the deep-water timestep for accelerated runs.
366  C                    Frequency of checkpointing and dumping of the model state  C                    Frequency of checkpointing and dumping of the model state
367  C                    are referenced to this clock. ( s )  C                    are referenced to this clock. ( s )
368  C     deltaTMom    - Timestep for momemtum equations ( s )  C     deltaTMom    :: Timestep for momemtum equations ( s )
369  C     deltaTtracer - Timestep for tracer equations ( s )  C     deltaTtracer :: Timestep for tracer equations ( s )
370  C     freesurfFac  - Parameter to turn implicit free surface term on or off  C     deltaTfreesurf :: Timestep for free-surface equation ( s )
371    C     freesurfFac  :: Parameter to turn implicit free surface term on or off
372  C                    freesurfac = 1. uses implicit free surface  C                    freesurfac = 1. uses implicit free surface
373  C                    freesurfac = 0. uses rigid lid  C                    freesurfac = 0. uses rigid lid
374  C     tauCD     - CD scheme coupling timescale ( 1/s )  C     implicSurfPress :: parameter of the Crank-Nickelson time stepping :
375  C     rCD       - CD scheme normalised coupling parameter ( 0-1 )  C                     Implicit part of Surface Pressure Gradient ( 0-1 )
376  C     GMmaxslope  - max. slope allowed in GM/Redi tensor  C     implicDiv2Dflow :: parameter of the Crank-Nickelson time stepping :
377  C     GMlength  - Length to use in Visbeck et al. formula for K (m)  C                     Implicit part of barotropic flow Divergence ( 0-1 )
378  C     GMalpha   - alpha to use in Visbeck et al. formula for K  C     hFacMin      :: Minimum fraction size of a cell (affects hFacC etc...)
379  C     GMdepth   - Depth over which to integrate Richardson # (Visbeck et al.)  C     hFacMinDz    :: Minimum dimesional size of a cell (affects hFacC etc..., m)
380  C     GMkbackground - background value of GM/Redi coefficient  C     hFacMinDp    :: Minimum dimesional size of a cell (affects hFacC etc..., Pa)
381  C     startTime - Starting time for this integration ( s ).  C     hFacMinDr    :: Minimum dimesional size of a cell (affects hFacC etc..., units of r)
382  C     endTime   - Ending time for this integration ( s ).  C     hFacInf      :: Threshold (inf and sup) for fraction size of surface cell
383  C     chkPtFreq  - Frequency of rolling check pointing ( s ).  C     hFacSup        that control vanishing and creating levels
384  C     pChkPtFreq - Frequency of permanent check pointing ( s ).  C     tauCD        :: CD scheme coupling timescale ( 1/s )
385  C     dumpFreq  - Frequency with which model state is written to  C     rCD          :: CD scheme normalised coupling parameter ( 0-1 )
386  C                 post-processing files ( s ).  C     startTime     :: Starting time for this integration ( s ).
387  C     afFacMom  - Advection of momentum term scaling parameter  C     endTime       :: Ending time for this integration ( s ).
388  C     vfFacMom  - Momentum viscosity scaling parameter  C     chkPtFreq     :: Frequency of rolling check pointing ( s ).
389  C     pfFacMom  - Momentum pressure forcing parameter  C     pChkPtFreq    :: Frequency of permanent check pointing ( s ).
390  C     cfFacMom  - Coriolis term scaling parameter  C     dumpFreq      :: Frequency with which model state is written to
391  C     foFacMom  - Momentum forcing scaling parameter  C                     post-processing files ( s ).
392  C     cAdjFreq  - Frequency of convective adjustment  C     diagFreq      :: Frequency with which model writes diagnostic output
393        COMMON /PARM_R/ cg2dTargetResidual, cg2dpcOffDFac, delZ, delX, delY,  C                     of intermediate quantities.
394       & deltaT,deltaTmom, deltaTtracer, deltaTClock,abeps, startTime, phiMin,  C     afFacMom      :: Advection of momentum term tracer parameter
395       & thetaMin, rSphere, f0, fCori, beta, viscAh, viscAz, viscA4,  C     vfFacMom      :: Momentum viscosity tracer parameter
396       & diffKhT, diffKzT, diffK4T, diffKhS, diffKzS, diffK4S, delT,  C     pfFacMom      :: Momentum pressure forcing tracer parameter
397       & tauCD, rCD, freeSurfFac,  C     cfFacMom      :: Coriolis term tracer parameter
398       & GMmaxslope,GMlength,GMalpha,GMdepth,GMkbackground,  C     foFacMom      :: Momentum forcing tracer parameter
399       & gravity, gBaro, rhonil, tRef, sRef,  C     mtFacMom      :: Metric terms tracer parameter
400    C     cosPower      :: Power of cosine of latitude to multiply viscosity
401    C     cAdjFreq      :: Frequency of convective adjustment
402    C
403    C     taveFreq      :: Frequency with which time-averaged model state is written to
404    C                     post-processing files ( s ).
405    C     tauThetaClimRelax :: Relaxation to climatology time scale ( s ).
406    C     lambdaThetaClimRelax :: Inverse time scale for relaxation ( 1/s ).
407    C     tauSaltClimRelax :: Relaxation to climatology time scale ( s ).
408    C     lambdaSaltClimRelax :: Inverse time scale for relaxation ( 1/s ).
409    C     externForcingPeriod :: Is the period of which forcing varies (eg. 1 month)
410    C     externForcingCycle :: Is the repeat time of the forcing (eg. 1 year)
411    C                          (note: externForcingCycle must be an integer
412    C                           number times externForcingPeriod)
413    C     convertFW2Salt :: salinity, used to convert Fresh-Water Flux to Salt Flux
414    C                       (use model surface (local) value if set to -1)
415    C     temp_EvPrRn :: temperature of Rain & Evap.
416    C     salt_EvPrRn :: salinity of Rain & Evap.
417    C     trac_EvPrRn :: tracer concentration in Rain & Evap.
418    C        (notes: a) tracer content of Rain/Evap only used if both
419    C                     NonLin_FrSurf & useRealFreshWater are set.
420    C                b) use model surface (local) value if set to UNSET_RL)
421    C     horiVertRatio      :: Ratio on units in vertical to units in horizontal.
422    C     recip_horiVertRatio  ( 1 if horiz in m and vertical in m ).
423    C                          ( g*rho if horiz in m and vertical in Pa ).
424    C     Ro_SeaLevel        :: standard position of Sea-Level in "R" coordinate, used as
425    C                          starting value (k=1) for vertical coordinate (rf(1)=Ro_SeaLevel)
426    C     bottomDragLinear   :: Drag coefficient built in to core dynamics
427    C      --"-"--  Quadratic  ( linear: 1/s, quadratic: 1/m )
428          COMMON /PARM_R/ cg2dTargetResidual, cg2dTargetResWunit,
429         & cg2dpcOffDFac, cg3dTargetResidual,
430         & delP, delZ, delR, delRc, delX, delY,
431         & deltaT, deltaTmom, deltaTtracer, deltaTfreesurf, deltaTClock,
432         & abeps, startTime,
433         & phiMin, thetaMin, rSphere, recip_RSphere, f0, beta,
434         & fCori, fCoriG,
435         & viscAh,  viscAz,  viscA4,  viscAr, viscAstrain, viscAtension,
436         & diffKhT, diffKzT, diffK4T, diffKrT,
437         & diffKhS, diffKzS, diffK4S, diffKrS,
438         & delT, tauCD, rCD, freeSurfFac, implicSurfPress, implicDiv2Dflow,
439         & hFacMin, hFacMinDz, hFacInf, hFacSup,
440         & gravity, recip_Gravity, gBaro, rhonil, recip_rhonil,
441         & recip_rhoConst, rhoConst, tRef, sRef,
442       & endTime, chkPtFreq, pchkPtFreq, dumpFreq,       & endTime, chkPtFreq, pchkPtFreq, dumpFreq,
443       & afFacMom, vfFacMom, pfFacMom, cfFacMom, foFacMom,       & diagFreq, taveFreq, monitorFreq,
444       & cAdjFreq       & afFacMom, vfFacMom, pfFacMom, cfFacMom, foFacMom, mtFacMom,
445         & cosPower, cAdjFreq, omega,
446         & tauThetaClimRelax, lambdaThetaClimRelax,
447         & tauSaltClimRelax, lambdaSaltClimRelax,
448         & tauTr1ClimRelax, lambdaTr1ClimRelax,
449         & externForcingCycle, externForcingPeriod,
450         & convertFW2Salt, temp_EvPrRn, salt_EvPrRn, trac_EvPrRn,
451         & viscAp, diffKpT, diffKpS, hFacMinDr, hFacMinDp,
452         & horiVertRatio, recip_horiVertRatio,
453         & ivdc_kappa, Ro_SeaLevel,
454         & bottomDragLinear,bottomDragQuadratic
455    
456        _RL cg2dTargetResidual        _RL cg2dTargetResidual
457          _RL cg2dTargetResWunit
458          _RL cg3dTargetResidual
459        _RL cg2dpcOffDFac        _RL cg2dpcOffDFac
460        _RL delZ(Nz)        _RL delZ(Nr)
461          _RL delP(Nr)
462          _RL delR(Nr)
463          _RL delRc(Nr+1)
464        _RL delX(Nx)        _RL delX(Nx)
465        _RL delY(Ny)        _RL delY(Ny)
466        _RL deltaT        _RL deltaT
467        _RL deltaTClock        _RL deltaTClock
468        _RL deltaTmom        _RL deltaTmom
469        _RL deltaTtracer        _RL deltaTtracer
470          _RL deltaTfreesurf
471        _RL abeps        _RL abeps
472        _RL phiMin        _RL phiMin
473        _RL thetaMin        _RL thetaMin
474        _RL rSphere        _RL rSphere
475          _RL recip_RSphere
476        _RL f0        _RL f0
477        _RL freeSurfFac        _RL freeSurfFac
478          _RL implicSurfPress
479          _RL implicDiv2Dflow
480          _RL hFacMin
481          _RL hFacMinDz
482          _RL hFacMinDp
483          _RL hFacMinDr
484          _RL hFacInf
485          _RL hFacSup
486        _RL beta        _RL beta
487        _RL viscAh        _RL viscAh
488          _RL viscAstrain
489          _RL viscAtension
490        _RL viscAz        _RL viscAz
491          _RL viscAp
492          _RL viscAr
493        _RL viscA4        _RL viscA4
494        _RL diffKhT        _RL diffKhT
495          _RL diffKrT
496        _RL diffKzT        _RL diffKzT
497          _RL diffKpT
498        _RL diffK4T        _RL diffK4T
499        _RL diffKhS        _RL diffKhS
500          _RL diffKrS
501        _RL diffKzS        _RL diffKzS
502          _RL diffKpS
503        _RL diffK4S        _RL diffK4S
504        _RL delt        _RL delt
505        _RL tauCD        _RL tauCD
506        _RL rCD        _RL rCD
       _RL GMmaxslope  
       _RL GMlength  
       _RL GMalpha  
       _RL GMdepth  
       _RL GMkbackground  
507        _RL gravity        _RL gravity
508          _RL recip_gravity
509        _RL gBaro        _RL gBaro
510        _RL rhonil        _RL rhonil
511        _RL tRef(Nz)        _RL recip_rhonil
512        _RL sRef(Nz)        _RL rhoConst
513        _RS Fcori(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)        _RL recip_rhoConst
514          _RL tRef(Nr)
515          _RL sRef(Nr)
516          _RS fCori(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
517          _RS fCoriG(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
518        _RL startTime        _RL startTime
519        _RL endTime        _RL endTime
520        _RL chkPtFreq        _RL chkPtFreq
521        _RL pChkPtFreq        _RL pChkPtFreq
522        _RL dumpFreq        _RL dumpFreq
523          _RL diagFreq
524          _RL taveFreq
525          _RL monitorFreq
526        _RL afFacMom        _RL afFacMom
527        _RL vfFacMom        _RL vfFacMom
528        _RL pfFacMom        _RL pfFacMom
529        _RL cfFacMom        _RL cfFacMom
530        _RL foFacMom        _RL foFacMom
531          _RL mTFacMom
532          _RL cosPower
533        _RL cAdjFreq        _RL cAdjFreq
534          _RL omega
535          _RL tauThetaClimRelax
536          _RL lambdaThetaClimRelax
537          _RL tauSaltClimRelax
538          _RL lambdaSaltClimRelax
539          _RL tauTr1ClimRelax
540          _RL lambdaTr1ClimRelax
541          _RL externForcingCycle
542          _RL externForcingPeriod
543          _RL convertFW2Salt
544          _RL temp_EvPrRn
545          _RL salt_EvPrRn
546          _RL trac_EvPrRn
547          _RL horiVertRatio
548          _RL recip_horiVertRatio
549          _RL ivdc_kappa
550          _RL Ro_SeaLevel
551          _RL bottomDragLinear
552          _RL bottomDragQuadratic
553    
554        COMMON /PARM_A/ HeatCapacity_Cp,        COMMON /PARM_A/ HeatCapacity_Cp,recip_Cp,
555       &                Lamba_theta       &                Lamba_theta
556        _RL HeatCapacity_Cp        _RL HeatCapacity_Cp
557        _RL Lamba_theta        _RL Lamba_theta
558          _RL recip_Cp
559    
560  C Equation of State (polynomial coeffients)  C Equation of State (polynomial coeffients)
561        COMMON /PARM_EOS_NL/ eosC,eosSig0,eosRefT,eosRefS        COMMON /PARM_EOS_NL/ eosC,eosSig0,eosRefT,eosRefS
562        _RL eosC(9,Nz+1),eosSig0(Nz+1),eosRefT(Nz+1),eosRefS(Nz+1)        _RL eosC(9,Nr+1),eosSig0(Nr+1),eosRefT(Nr+1),eosRefS(Nr+1)
563  C Linear equation of state  C Linear equation of state
564  C     tAlpha    - Linear EOS thermal expansion coefficient ( 1/degree ).  C     tAlpha    :: Linear EOS thermal expansion coefficient ( 1/degree ).
565  C     sBeta     - Linear EOS haline contraction coefficient.  C     sBeta     :: Linear EOS haline contraction coefficient.
566        COMMON /PARM_EOS_LIN/ tAlpha,sBeta,eosType        COMMON /PARM_EOS_LIN/ tAlpha,sBeta,eosType
567        _RL tAlpha        _RL tAlpha
568        _RL sBeta        _RL sBeta
569        character*(6) eosType        character*(6) eosType
570    
571    C Atmospheric physical parameters (Ideal Gas EOS, ...)
572    C     atm_po    :: standard reference pressure
573    C     atm_cp    :: specific heat (Cp) of the (dry) air at constant pressure
574    C     atm_kappa :: kappa = R/Cp (R: constant of Ideal Gas EOS)
575    C     Integr_GeoPot :: option to select the way we integrate the geopotential
576    C                     (still a subject of discussions ...)
577          COMMON /PARM_ATM/ atm_cp, atm_kappa, atm_po,
578         &                  Integr_GeoPot
579          _RL atm_cp, atm_kappa, atm_po
580          INTEGER Integr_GeoPot
581    
582    C Logical flags for selecting packages
583          LOGICAL useKPP
584          LOGICAL useGMRedi
585          LOGICAL useOBCS
586          LOGICAL useAIM
587          LOGICAL useGrdchk
588          LOGICAL useECCO
589          LOGICAL useSHAP_FILT
590          LOGICAL useZONAL_FILT
591          LOGICAL useFLT
592          LOGICAL usePTRACERS
593          COMMON /PARM_PACKAGES/
594         &        useKPP, useGMRedi, useOBCS, useAIM, useECCO,
595         &        useSHAP_FILT, useZONAL_FILT, useGrdchk, useFLT,
596         &        usePTRACERS
597    

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