/[MITgcm]/MITgcm/model/inc/PARAMS.h
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revision 1.5 by adcroft, Thu Apr 30 13:25:01 1998 UTC revision 1.39 by adcroft, Tue Jun 29 18:33:21 1999 UTC
# Line 4  C     /================================= Line 4  C     /=================================
4  C     | PARAMS.h                                                 |  C     | PARAMS.h                                                 |
5  C     | o Header file defining model "parameters".               |  C     | o Header file defining model "parameters".               |
6  C     |==========================================================|  C     |==========================================================|
7  C     | The values from the model's standard input file are      |  C     | The values from the model standard input file are        |
8  C     | stored into the variables held here. Notes describing    |  C     | stored into the variables held here. Notes describing    |
9  C     | the parameters can also be found here.                   |  C     | the parameters can also be found here.                   |
10  C     \==========================================================/  C     \==========================================================/
11    
12    C     Macros for special grid options
13    #include "PARAMS_MACROS.h"
14    
15  C--   Contants  C--   Contants
 C     nOBands - No. of offline data time bands  
       INTEGER nOBands  
       PARAMETER ( nOBands = 12 )  
16  C     Useful physical values  C     Useful physical values
17        Real*8 PI        Real*8 PI
18        PARAMETER ( PI    = 3.14159265358979323844D0   )        PARAMETER ( PI    = 3.14159265358979323844D0   )
19        Real*8 deg2rad        Real*8 deg2rad
20        PARAMETER ( deg2rad = 2.D0*PI/360.D0           )        PARAMETER ( deg2rad = 2.D0*PI/360.D0           )
21    
22    C     Symbolic values
23    C     precXXXX - Used to indicate what precision to use for
24    C                dumping model state.
25          INTEGER precFloat32
26          PARAMETER ( precFloat32 = 32 )
27          INTEGER precFloat64
28          PARAMETER ( precFloat64 = 64 )
29    C     UNSET_xxx - Used to indicate variables that have not been given a value
30          Real*8 UNSET_FLOAT8
31          PARAMETER ( UNSET_FLOAT8 = 1.234567D5 )
32          Real*4 UNSET_FLOAT4
33          PARAMETER ( UNSET_FLOAT4 = 1.234567E5 )
34          _RL    UNSET_RL    
35          PARAMETER ( UNSET_RL     = 1.234567D5 )
36          _RS    UNSET_RS    
37          PARAMETER ( UNSET_RS     = 1.234567E5 )
38          INTEGER UNSET_I
39          PARAMETER ( UNSET_I      = 123456789  )
40    
41    C     Checkpoint data
42          INTEGER maxNoChkptLev
43          PARAMETER ( maxNoChkptLev = 2 )
44    
45  C--   COMMON /PARM_C/ Character valued parameters used by the model.  C--   COMMON /PARM_C/ Character valued parameters used by the model.
46  C     oBandId  - Offline dataset identifiers for different periods.  C     checkPtSuff - List of checkpoint file suffices
47        COMMON /PARM_C/ oBandId  C     bathyFile   - File containing bathymetry. If not defined bathymetry
48        CHARACTER*3 oBandId(nOBands)  C                   is taken from inline function.
49    C     hydrogThetaFile - File containing initial hydrographic data for potential
50    C                       temperature.
51    C     hydrogSaltFile  - File containing initial hydrographic data for salinity.
52    C     zonalWindFile   - File containing zonal wind data
53    C     meridWindFile   - File containing meridional wind data
54    C     thetaClimFile   - File containing theta climataology used
55    C                       in relaxation term -lambda(theta-theta*)
56    C     saltClimFile    - File containing salt climataology used
57    C                       in relaxation term -lambda(salt-salt*)
58    C     surfQfile       - File containing surface heat flux
59    C     EmPmRfile       - File containing surface fresh water flux
60    C     buoyancyRelation - Flag used to indicate which relation to use to
61    C                        get buoyancy.
62          COMMON /PARM_C/ checkPtSuff,
63         &                bathyFile, hydrogThetaFile, hydrogSaltFile,
64         &                zonalWindFile, meridWindFile, thetaClimFile,
65         &                saltClimFile, buoyancyRelation,
66         &                EmPmRfile,surfQfile
67          CHARACTER*(5) checkPtSuff(maxNoChkptLev)
68          CHARACTER*(MAX_LEN_FNAM) bathyFile
69          CHARACTER*(MAX_LEN_FNAM) hydrogThetaFile
70          CHARACTER*(MAX_LEN_FNAM) hydrogSaltFile
71          CHARACTER*(MAX_LEN_FNAM) zonalWindFile
72          CHARACTER*(MAX_LEN_FNAM) meridWindFile
73          CHARACTER*(MAX_LEN_FNAM) thetaClimFile
74          CHARACTER*(MAX_LEN_FNAM) saltClimFile
75          CHARACTER*(MAX_LEN_FNAM) surfQfile
76          CHARACTER*(MAX_LEN_FNAM) EmPmRfile
77          CHARACTER*(MAX_LEN_FNAM) buoyancyRelation
78    
79  C--   COMMON /PARM_I/ Integer valued parameters used by the model.  C--   COMMON /PARM_I/ Integer valued parameters used by the model.
80  C     cg2dMaxIters        - Maximum number of iterations in the  C     cg2dMaxIters        - Maximum number of iterations in the
81  C                           two-dimensional con. grad solver.  C                           two-dimensional con. grad solver.
82  C     cg2dChkResFreq      - Frequency with which to check residual  C     cg2dChkResFreq      - Frequency with which to check residual
83  C                           in con. grad solver.  C                           in con. grad solver.
84    C     cg3dMaxIters        - Maximum number of iterations in the
85    C                           three-dimensional con. grad solver.
86    C     cg3dChkResFreq      - Frequency with which to check residual
87    C                           in con. grad solver.
88  C     nIter0              - Start time-step number of for this run  C     nIter0              - Start time-step number of for this run
89  C     nTimeSteps          - Number of timesteps to execute  C     nTimeSteps          - Number of timesteps to execute
90  C     numStepsPerPickup   - For offline setup. Frequency of pickup  C     numStepsPerPickup   - For offline setup. Frequency of pickup
91  C                           of flow fields.  C                           of flow fields.
92    C     writeStatePrec      - Precision used for writing model state.
93    C     writeBinaryPrec     - Precision used for writing binary files
94    C     readBinaryPrec      - Precision used for reading binary files
95    C     nCheckLev           - Holds current checkpoint level
96    C     nShap               - "Order" of shapiro filter to apply to
97    C                           model prognositic fields.
98    C                           nShap == 1 => del2
99    C                           nShap == 2 => del4
100    C                           nShap == 3 => del6
101    C                           etc...
102    
103        COMMON /PARM_I/        COMMON /PARM_I/
104       &        cg2dMaxIters,       &        cg2dMaxIters,
105       &        cg2dChkResFreq,       &        cg2dChkResFreq,
106         &        cg3dMaxIters,
107         &        cg3dChkResFreq,
108       &        nIter0, nTimeSteps,       &        nIter0, nTimeSteps,
109       &        numStepsPerPickup       &        numStepsPerPickup,
110         &        writeStatePrec, nCheckLev,
111         &        writeBinaryPrec, readBinaryPrec,
112         &        nShap
113        INTEGER cg2dMaxIters        INTEGER cg2dMaxIters
114        INTEGER cg2dChkResFreq        INTEGER cg2dChkResFreq
115          INTEGER cg3dMaxIters
116          INTEGER cg3dChkResFreq
117        INTEGER nIter0        INTEGER nIter0
118        INTEGER nTimeSteps        INTEGER nTimeSteps
119        INTEGER numStepsPerPickup        INTEGER numStepsPerPickup
120          INTEGER writeStatePrec
121          INTEGER writeBinaryPrec
122          INTEGER readBinaryPrec
123          INTEGER nCheckLev
124          INTEGER nShap
125    
126  C--   COMMON /PARM_L/ Logical valued parameters used by the model.  C--   COMMON /PARM_L/ Logical valued parameters used by the model.
127  C     usingCartesianGrid - If TRUE grid generation will be in a cartesian  C     usingCartesianGrid - If TRUE grid generation will be in a cartesian
128  C                          coordinate frame.  C                          coordinate frame.
129  C     usingSphericalPolarGrid - If TRUE grid generation will be in a  C     usingSphericalPolarGrid - If TRUE grid generation will be in a
130  C                               spherical polar frame.  C                               spherical polar frame.
131    C     no_slip_sides - Impose "no-slip" at lateral boundaries.
132    C     no_slip_bottom- Impose "no-slip" at bottom boundary.
133  C     momViscosity  - Flag which turns momentum friction terms on and off.  C     momViscosity  - Flag which turns momentum friction terms on and off.
134  C     momAdvection  - Flag which turns advection of momentum on and off.  C     momAdvection  - Flag which turns advection of momentum on and off.
135  C     momForcing    - Flag which turns external forcing of momentum on  C     momForcing    - Flag which turns external forcing of momentum on
136  C                     and off.  C                     and off.
137    C     momPressureForcing - Flag which turns pressure term in momentum equation
138    C                          on and off.
139    C     metricTerms   - Flag which turns metric terms on or off.
140    C     usingSphericalPolarMTerms - If TRUE use spherical polar metric terms.
141  C     useCoriolis   - Flag which turns the coriolis terms on and off.  C     useCoriolis   - Flag which turns the coriolis terms on and off.
142  C     tempDiffusion - Flag which turns diffusion of temperature on  C     tempDiffusion - Flag which turns diffusion of temperature on
143  C                     and off.  C                     and off.
# Line 65  C     saltAdvection - Flag which turns a Line 151  C     saltAdvection - Flag which turns a
151  C                     and off.  C                     and off.
152  C     saltForcing   - Flag which turns external forcing of salinit on  C     saltForcing   - Flag which turns external forcing of salinit on
153  C                     and off.  C                     and off.
154    C     implicitFreeSurface - Set to true to use implcit free surface
155    C     rigidLid            - Set to true to use rigid lid
156    C     momStepping   - Turns momentum equation time-stepping off
157    C     tempStepping  - Turns temperature equation time-stepping off
158    C     saltStepping  - Turns salinity equation time-stepping off
159    C     useConstantF  - Coriolis parameter set to f0
160    C     useBetaPlaneF - Coriolis parameter set to f0 + beta.y
161    C     useSphereF    - Coriolis parameter set to 2.omega.sin(phi)
162    C     implicitDiffusion - Turns implicit vertical diffusion on
163    C     doThetaClimRelax - Set true if relaxation to temperature
164    C                        climatology is required.
165    C     doSaltClimRelax  - Set true if relaxation to salinity
166    C                        climatology is required.
167    C     periodicExternalForcing - Set true if forcing is time-dependant
168    C     usingPCoords     - Set to indicate that we are working in pressure
169    C                        coords.
170    C     usingZCoords     - Set to indicate that we are working in height
171    C                        coords.
172    C     openBoundaries - Using open-boundaries
173    C     nonHydrostatic - Using non-hydrostatic terms
174    C     globalFiles    - Selects between "global" and "tiled" files
175    C     allowFreezing  - Allows water to freeze and form ice
176        COMMON /PARM_L/ usingCartesianGrid, usingSphericalPolarGrid,        COMMON /PARM_L/ usingCartesianGrid, usingSphericalPolarGrid,
177       & momViscosity, momAdvection, momForcing, useCoriolis,       & no_slip_sides,no_slip_bottom,
178       & tempDiffusion, tempAdvection, tempForcing,       & momViscosity, momAdvection, momForcing, useCoriolis,
179       & saltDiffusion, saltAdvection, saltForcing       & momPressureForcing,tempDiffusion, tempAdvection, tempForcing,
180         & saltDiffusion, saltAdvection, saltForcing,
181         & implicitFreeSurface, rigidLid,
182         & momStepping, tempStepping, saltStepping,
183         & metricTerms, usingSphericalPolarMTerms,
184         & useConstantF, useBetaPlaneF, useSphereF,
185         & implicitDiffusion, doThetaClimRelax, doSaltClimRelax,
186         & periodicExternalForcing, usingPCoords, usingZCoords,
187         & openBoundaries, nonHydrostatic, globalFiles,
188         & allowFreezing
189        LOGICAL usingCartesianGrid        LOGICAL usingCartesianGrid
190        LOGICAL usingSphericalPolarGrid        LOGICAL usingSphericalPolarGrid
191          LOGICAL usingSphericalPolarMTerms
192          LOGICAL no_slip_sides
193          LOGICAL no_slip_bottom
194        LOGICAL momViscosity        LOGICAL momViscosity
195        LOGICAL momAdvection        LOGICAL momAdvection
196        LOGICAL momForcing        LOGICAL momForcing
197          LOGICAL momPressureForcing
198        LOGICAL useCoriolis        LOGICAL useCoriolis
199        LOGICAL tempDiffusion        LOGICAL tempDiffusion
200        LOGICAL tempAdvection        LOGICAL tempAdvection
# Line 81  C                     and off. Line 202  C                     and off.
202        LOGICAL saltDiffusion        LOGICAL saltDiffusion
203        LOGICAL saltAdvection        LOGICAL saltAdvection
204        LOGICAL saltForcing        LOGICAL saltForcing
205          LOGICAL implicitFreeSurface
206          LOGICAL rigidLid
207          LOGICAL momStepping
208          LOGICAL tempStepping
209          LOGICAL saltStepping
210          LOGICAL metricTerms
211          LOGICAL useConstantF
212          LOGICAL useBetaPlaneF
213          LOGICAL useSphereF
214          LOGICAL implicitDiffusion
215          LOGICAL doThetaClimRelax
216          LOGICAL doSaltClimRelax
217          LOGICAL periodicExternalForcing
218          LOGICAL usingPCoords
219          LOGICAL usingZCoords
220          LOGICAL openBoundaries
221          LOGICAL nonHydrostatic
222          LOGICAL globalFiles
223          LOGICAL allowFreezing
224    
225  C--   COMMON /PARM_R/ "Real" valued parameters used by the model.  C--   COMMON /PARM_R/ "Real" valued parameters used by the model.
226  C     cg2dTargetResidual  C     cg2dTargetResidual
227  C               - Target residual for cg2d solver.  C               - Target residual for cg2d solver.
228  C     delZ      - Vertical grid spacing ( m ) - delZ is the distance  C     cg3dTargetResidual
229  C                 between "w" surfaces.  C               - Target residual for cg3d solver.
230    C     cg2dpcOffDFac - Averaging weight for preconditioner off-diagonal.
231    C     Note. 20th May 1998
232    C           I made a weird discovery! In the model paper we argue
233    C           for the form of the preconditioner used here ( see
234    C           A Finite-volume, Incompressible Navier-Stokes Model
235    C           ...., Marshall et. al ). The algebra gives a simple
236    C           0.5 factor for the averaging of ac and aCw to get a
237    C           symmettric pre-conditioner. By using a factor of 0.51
238    C           i.e. scaling the off-diagonal terms in the
239    C           preconditioner down slightly I managed to get the
240    C           number of iterations for convergence in a test case to
241    C           drop form 192 -> 134! Need to investigate this further!
242    C           For now I have introduced a parameter cg2dpcOffDFac which
243    C           defaults to 0.51 but can be set at runtime.
244    C     delP      - Vertical grid spacing ( Pa ).
245    C     delZ      - Vertical grid spacing ( m  ).
246    C     delR      - Vertical grid spacing ( units of r ).
247  C     delX      - Separation between cell faces (m) or (deg), depending  C     delX      - Separation between cell faces (m) or (deg), depending
248  C     delY        on input flags.  C     delY        on input flags.
249  C     gravity   - Accel. due to gravity ( m/s^2 )  C     gravity   - Accel. due to gravity ( m/s^2 )
250    C     recip_gravity and its inverse
251    C     gBaro     - Accel. due to gravity used in barotropic equation ( m/s^2 )
252  C     ronil     - Reference density  C     ronil     - Reference density
253    C     rhoConst  - Vertically constant reference density
254  C     startTime - Start time for model ( s )  C     startTime - Start time for model ( s )
255  C     phiMin    - Latitude of southern most cell face.  C     phiMin    - Latitude of southern most cell face.
256  C     thetaMin  - Longitude of western most cell face (this  C     thetaMin  - Longitude of western most cell face (this
257  C                 is an "inert" parameter but it is included  C                 is an "inert" parameter but it is included
258  C                 to make geographical references simple.)  C                 to make geographical references simple.)
259  C     rSphere   - Radius of sphere for a spherical polar grid ( m ).  C     rSphere   - Radius of sphere for a spherical polar grid ( m ).
260    C     recip_RSphere  - Reciprocal radius of sphere ( m ).
261  C     f0        - Reference coriolis parameter ( 1/s )  C     f0        - Reference coriolis parameter ( 1/s )
262  C                 ( Southern edge f for beta plane )  C                 ( Southern edge f for beta plane )
263  C     beta      - df/dy ( s^-1.m^-1 )  C     beta      - df/dy ( s^-1.m^-1 )
264    C     omega     - Angular velocity ( rad/s )
265  C     viscAh    - Eddy viscosity coeff. for mixing of  C     viscAh    - Eddy viscosity coeff. for mixing of
266  C                 momentum laterally ( m^2/s )  C                 momentum laterally ( m^2/s )
267  C     viscAz    - Eddy viscosity coeff. for mixing of  C     viscAz    - Eddy viscosity coeff. for mixing of
268  C                 momentum vertically ( m^2/s )  C                 momentum vertically ( m^2/s )
269    C     viscAp    - Eddy viscosity coeff. for mixing of
270    C                 momentum vertically ( Pa^2/s )
271    C     viscAr    - Eddy viscosity coeff. for mixing of
272    C                 momentum vertically ( units of r^2/s )
273  C     viscA4    - Biharmonic viscosity coeff. for mixing of  C     viscA4    - Biharmonic viscosity coeff. for mixing of
274  C                 momentum laterally ( m^4/s )  C                 momentum laterally ( m^4/s )
275  C     diffKhT   - Laplacian diffusion coeff. for mixing of  C     diffKhT   - Laplacian diffusion coeff. for mixing of
276  C                 heat laterally ( m^2/s )  C                 heat laterally ( m^2/s )
277  C     diffKzT   - Laplacian diffusion coeff. for mixing of  C     diffKzT   - Laplacian diffusion coeff. for mixing of
278  C                 heat vertically ( m^2/s )  C                 heat vertically ( m^2/s )
279    C     diffKpT   - Laplacian diffusion coeff. for mixing of
280    C                 heat vertically ( Pa^2/s )
281    C     diffKrT   - Laplacian diffusion coeff. for mixing of
282    C                 heat vertically ( units of r^2/s )
283  C     diffK4T   - Biharmonic diffusion coeff. for mixing of  C     diffK4T   - Biharmonic diffusion coeff. for mixing of
284  C                 heat laterally ( m^4/s )  C                 heat laterally ( m^4/s )
285  C     diffKhS  -  Laplacian diffusion coeff. for mixing of  C     diffKhS  -  Laplacian diffusion coeff. for mixing of
286  C                 salt laterally ( m^2/s )  C                 salt laterally ( m^2/s )
287  C     diffKzS   - Laplacian diffusion coeff. for mixing of  C     diffKzS   - Laplacian diffusion coeff. for mixing of
288  C                 salt vertically ( m^2/s )  C                 salt vertically ( m^2/s )
289    C     diffKpS   - Laplacian diffusion coeff. for mixing of
290    C                 salt vertically ( Pa^2/s )
291    C     diffKrS   - Laplacian diffusion coeff. for mixing of
292    C                 salt vertically ( units of r^2/s )
293  C     diffK4S   - Biharmonic diffusion coeff. for mixing of  C     diffK4S   - Biharmonic diffusion coeff. for mixing of
294  C                 salt laterally ( m^4/s )  C                 salt laterally ( m^4/s )
295  C     deltaT    - Default timestep ( s )  C     deltaT    - Default timestep ( s )
296    C     deltaTClock  - Timestep used as model "clock". This determines the
297    C                    IO frequencies and is used in tagging output. It can
298    C                    be totally different to the dynamical time. Typically
299    C                    it will be the deep-water timestep for accelerated runs.
300    C                    Frequency of checkpointing and dumping of the model state
301    C                    are referenced to this clock. ( s )
302  C     deltaTMom    - Timestep for momemtum equations ( s )  C     deltaTMom    - Timestep for momemtum equations ( s )
303  C     deltaTtracer - Timestep for tracer equations ( s )  C     deltaTtracer - Timestep for tracer equations ( s )
304  C     tauCD     - CD scheme coupling timescale ( 1/s )  C     freesurfFac  - Parameter to turn implicit free surface term on or off
305  C     rCD       - CD scheme normalised coupling parameter ( 0-1 )  C                    freesurfac = 1. uses implicit free surface
306  C     startTime - Starting time for this integration ( s ).  C                    freesurfac = 0. uses rigid lid
307  C     endTime   - Ending time for this integration ( s ).  C     hFacMin      - Minimum fraction size of a cell (affects hFacC etc...)
308  C     chkPtFreq - Frequency of check pointing ( s ).  C     hFacMinDz    - Minimum dimesional size of a cell (affects hFacC etc..., m)
309  C     dumpFreq  - Frequency with which model state is written to  C     hFacMinDp    - Minimum dimesional size of a cell (affects hFacC etc..., Pa)
310  C                 post-processing files ( s ).  C     hFacMinDr    - Minimum dimesional size of a cell (affects hFacC etc..., units of r)
311        COMMON /PARM_R/ cg2dTargetResidual, delZ, delX, delY, deltaT,  C     tauCD        - CD scheme coupling timescale ( 1/s )
312       & deltaTmom, deltaTtracer, abeps, startTime, phiMin, thetaMin,  C     rCD          - CD scheme normalised coupling parameter ( 0-1 )
313       & rSphere, f0, fCori, beta, viscAh, viscAz, viscA4, diffKhT, diffKzT,  C     GMmaxslope    - max. slope allowed in GM/Redi tensor
314       & diffK4T, diffKhS, diffKzS, diffK4S, delT, tauCD, rCD,  C     GMlength      - Length to use in Visbeck et al. formula for K (m)
315       & gravity, rhonil, tRef, sRef,  C     GMalpha       - alpha to use in Visbeck et al. formula for K
316       & endTime, chkPtFreq, dumpFreq  C     GMdepth       - Depth over which to integrate Richardson # (Visbeck et al.)
317        REAL cg2dTargetResidual  C     GMkbackground - background value of GM/Redi diffusion coefficient ( m^2/s )
318        REAL delZ(Nz)  C     GMmaxval      - max. value of KapGM allowed in GM/Redi scheme ( m^2/s )
319        REAL delX(Nx)  C     startTime     - Starting time for this integration ( s ).
320        REAL delY(Ny)  C     endTime       - Ending time for this integration ( s ).
321        REAL deltaT  C     chkPtFreq     - Frequency of rolling check pointing ( s ).
322        REAL deltaTmom  C     pChkPtFreq    - Frequency of permanent check pointing ( s ).
323        REAL deltaTtracer  C     dumpFreq      - Frequency with which model state is written to
324        REAL abeps  C                     post-processing files ( s ).
325        REAL phiMin  C     afFacMom      - Advection of momentum term tracer parameter
326        REAL thetaMin  C     vfFacMom      - Momentum viscosity tracer parameter
327        REAL rSphere  C     pfFacMom      - Momentum pressure forcing tracer parameter
328        REAL f0  C     cfFacMom      - Coriolis term tracer parameter
329        _RL  beta  C     foFacMom      - Momentum forcing tracer parameter
330        REAL viscAh  C     mtFacMom      - Metric terms tracer parameter
331        REAL viscAz  C     cosPower      - Power of cosine of latitude to multiply viscosity
332        REAL viscA4  C     cAdjFreq      - Frequency of convective adjustment
333        REAL diffKhT  C
334        REAL diffKzT  C     taveFreq      - Frequency with which time-averaged model state is written to
335        REAL diffK4T  C                     post-processing files ( s ).
336        REAL diffKhS  C     tauThetaClimRelax - Relaxation to climatology time scale ( s ).
337        REAL diffKzS  C     lambdaThetaClimRelax - Inverse time scale for relaxation ( 1/s ).
338        REAL diffK4S  C     tauSaltClimRelax - Relaxation to climatology time scale ( s ).
339        REAL delt  C     lambdaSaltClimRelax - Inverse time scale for relaxation ( 1/s ).
340        REAL tauCD  C     externForcingPeriod - Is the period of which forcing varies (eg. 1 month)
341        REAL rCD  C     externForcingCycle - Is the repeat time of the forcing (eg. 1 year)
342        REAL gravity  C                          (note: externForcingCycle must be an integer
343        REAL rhonil  C                           number times externForcingPeriod)
344        REAL tRef(Nz)  C     horiVertRatio      - Ratio on units in vertical to units in horizontal.
345        REAL sRef(Nz)  C     recip_horiVertRatio  ( 1 if horiz in m and vertical in m ).
346        real Fcori(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)  C                          ( g*rho if horiz in m and vertical in Pa ).
347        REAL startTime  C     latFFTFiltLo       - Low latitude for FFT filtering of latitude
348        REAL endTime  C                          circles ( see filter*.F )
349        REAL chkPtFreq        COMMON /PARM_R/ cg2dTargetResidual, cg2dpcOffDFac,
350        REAL dumpFreq       & cg3dTargetResidual,
351        COMMON /PARM_A/ HeatCapacity_Cp,       & delP, delZ, delR, delX, delY,
352         & deltaT,deltaTmom, deltaTtracer, deltaTClock,abeps, startTime,
353         & phiMin, thetaMin, rSphere, recip_RSphere, f0, fCori, beta,
354         & viscAh,  viscAz,  viscA4,  viscAr,
355         & diffKhT, diffKzT, diffK4T, diffKrT,
356         & diffKhS, diffKzS, diffK4S, diffKrS,
357         & delT, tauCD, rCD, freeSurfFac, hFacMin, hFacMinDz,
358         & GMmaxslope,GMlength,GMalpha,GMdepth,GMkbackground,GMmaxval,
359         & gravity, recip_Gravity, gBaro, rhonil, recip_rhonil,
360         & recip_rhoConst, rhoConst, tRef, sRef,
361         & endTime, chkPtFreq, pchkPtFreq, dumpFreq, taveFreq,
362         & afFacMom, vfFacMom, pfFacMom, cfFacMom, foFacMom, mtFacMom,
363         & cosPower,
364         & cAdjFreq, omega, tauThetaClimRelax, lambdaThetaClimRelax,
365         & tauSaltClimRelax, lambdaSaltClimRelax,
366         & externForcingCycle, externForcingPeriod,
367         & viscAp, diffKpT, diffKpS, hFacMinDr, hFacMinDp,
368         & theta_S, specVol_S, horiVertRatio, recip_horiVertRatio,
369         & latFFTFiltLo
370    
371          _RL cg2dTargetResidual
372          _RL cg3dTargetResidual
373          _RL cg2dpcOffDFac
374          _RL delZ(Nr)
375          _RL delP(Nr)
376          _RL delR(Nr)
377          _RL delX(Nx)
378          _RL delY(Ny)
379          _RL deltaT
380          _RL deltaTClock
381          _RL deltaTmom
382          _RL deltaTtracer
383          _RL abeps
384          _RL phiMin
385          _RL thetaMin
386          _RL rSphere
387          _RL recip_RSphere
388          _RL f0
389          _RL freeSurfFac
390          _RL hFacMin
391          _RL hFacMinDz
392          _RL hFacMinDp
393          _RL hFacMinDr
394          _RL beta
395          _RL viscAh
396          _RL viscAz
397          _RL viscAp
398          _RL viscAr
399          _RL viscA4
400          _RL diffKhT
401          _RL diffKrT
402          _RL diffKzT
403          _RL diffKpT
404          _RL diffK4T
405          _RL diffKhS
406          _RL diffKrS
407          _RL diffKzS
408          _RL diffKpS
409          _RL diffK4S
410          _RL delt
411          _RL tauCD
412          _RL rCD
413          _RL GMmaxslope
414          _RL GMlength
415          _RL GMalpha
416          _RL GMdepth
417          _RL GMkbackground
418          _RL GMmaxval
419          _RL gravity
420          _RL recip_gravity
421          _RL gBaro
422          _RL rhonil
423          _RL recip_rhonil
424          _RL rhoConst
425          _RL recip_rhoConst
426          _RL specVol_S(Nr)
427          _RL tRef(Nr)
428          _RL theta_S(Nr)
429          _RL sRef(Nr)
430          _RS Fcori(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
431          _RL startTime
432          _RL endTime
433          _RL chkPtFreq
434          _RL pChkPtFreq
435          _RL dumpFreq
436          _RL taveFreq
437          _RL afFacMom
438          _RL vfFacMom
439          _RL pfFacMom
440          _RL cfFacMom
441          _RL foFacMom
442          _RL mTFacMom
443          _RL cosPower
444          _RL cAdjFreq
445          _RL omega
446          _RL tauThetaClimRelax
447          _RL lambdaThetaClimRelax
448          _RL tauSaltClimRelax
449          _RL lambdaSaltClimRelax
450          _RL externForcingCycle
451          _RL externForcingPeriod
452          _RL horiVertRatio
453          _RL recip_horiVertRatio
454          _RL latFFTFiltLo
455    
456          COMMON /PARM_A/ HeatCapacity_Cp,recip_Cp,
457       &                Lamba_theta       &                Lamba_theta
458        REAL HeatCapacity_Cp        _RL HeatCapacity_Cp
459        REAL Lamba_theta        _RL Lamba_theta
460          _RL recip_Cp
461    
462  C Equation of State (polynomial coeffients)  C Equation of State (polynomial coeffients)
463        COMMON /PARM_EOS_NL/ eosC,eosSig0,eosRefT,eosRefS        COMMON /PARM_EOS_NL/ eosC,eosSig0,eosRefT,eosRefS
464        REAL eosC(Nz+1,9),eosSig0(Nz+1),eosRefT(Nz+1),eosRefS(Nz+1)        _RL eosC(9,Nr+1),eosSig0(Nr+1),eosRefT(Nr+1),eosRefS(Nr+1)
465  C Linear equation of state  C Linear equation of state
466  C     tAlpha    - Linear EOS thermal expansion coefficient ( 1/degree ).  C     tAlpha    - Linear EOS thermal expansion coefficient ( 1/degree ).
467  C     sBeta     - Linear EOS haline contraction coefficient.  C     sBeta     - Linear EOS haline contraction coefficient.
468        COMMON /PARM_EOS_LIN/ tAlpha,sBeta        COMMON /PARM_EOS_LIN/ tAlpha,sBeta,eosType
469        REAL tAlpha        _RL tAlpha
470        REAL sBeta        _RL sBeta
471          character*(6) eosType
472    
473    C These are input arrays (of integers) that contain the *absolute*
474    C computational index of an open-boundary (OB) point.
475    C A zero (0) element means there is no corresponding OB in that column/row.
476    C The computational coordinate refers to "tracer" cells.
477    C For a northern/southern OB, the OB V point is to the south/north.
478    C For an eastern/western OB, the OB U point is to the west/east.
479    C eg.
480    C     OB_Jnorth(3)=34  means that:
481    C          T( 3 ,34) is a an OB point
482    C          U(3:4,34) is a an OB point
483    C          V( 4 ,34) is a an OB point
484    C while
485    C     OB_Jsouth(3)=1  means that:
486    C          T( 3 ,1) is a an OB point
487    C          U(3:4,1) is a an OB point
488    C          V( 4 ,2) is a an OB point
489    C
490    C For convenience, negative values for Jnorth/Ieast refer to
491    C points relative to the Northern/Eastern edges of the model
492    C eg. OB_Jnorth(3)=-1  means that the point (3,Ny-1) is a northern O-B.
493    C
494          COMMON /PARM_OB/
495         & OB_Jnorth,OB_Jsouth,OB_Ieast,OB_Iwest
496          INTEGER OB_Jnorth(Nx)
497          INTEGER OB_Jsouth(Nx)
498          INTEGER OB_Ieast(Ny)
499          INTEGER OB_Iwest(Ny)
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