/[MITgcm]/MITgcm/model/inc/PARAMS.h
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Contents of /MITgcm/model/inc/PARAMS.h

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Revision 1.5 - (show annotations) (download)
Thu Apr 30 13:25:01 1998 UTC (26 years ago) by adcroft
Branch: MAIN
CVS Tags: checkpoint1, kloop1, kloop2
Changes since 1.4: +12 -6 lines
File MIME type: text/plain
Added coefficients for non-linear equation of state (common block
PARAMS_EOS_NL). Also moved the tAlpha and sBeta (linear EOS)
coefficients into a new PARAMS_EOS_LIN common block.

1 C $Header: /u/gcmpack/models/MITgcmUV/model/inc/PARAMS.h,v 1.4 1998/04/27 04:24:22 cnh Exp $
2 C
3 C /==========================================================\
4 C | PARAMS.h |
5 C | o Header file defining model "parameters". |
6 C |==========================================================|
7 C | The values from the model's standard input file are |
8 C | stored into the variables held here. Notes describing |
9 C | the parameters can also be found here. |
10 C \==========================================================/
11
12 C-- Contants
13 C nOBands - No. of offline data time bands
14 INTEGER nOBands
15 PARAMETER ( nOBands = 12 )
16 C Useful physical values
17 Real*8 PI
18 PARAMETER ( PI = 3.14159265358979323844D0 )
19 Real*8 deg2rad
20 PARAMETER ( deg2rad = 2.D0*PI/360.D0 )
21
22 C-- COMMON /PARM_C/ Character valued parameters used by the model.
23 C oBandId - Offline dataset identifiers for different periods.
24 COMMON /PARM_C/ oBandId
25 CHARACTER*3 oBandId(nOBands)
26 C-- COMMON /PARM_I/ Integer valued parameters used by the model.
27 C cg2dMaxIters - Maximum number of iterations in the
28 C two-dimensional con. grad solver.
29 C cg2dChkResFreq - Frequency with which to check residual
30 C in con. grad solver.
31 C nIter0 - Start time-step number of for this run
32 C nTimeSteps - Number of timesteps to execute
33 C numStepsPerPickup - For offline setup. Frequency of pickup
34 C of flow fields.
35 COMMON /PARM_I/
36 & cg2dMaxIters,
37 & cg2dChkResFreq,
38 & nIter0, nTimeSteps,
39 & numStepsPerPickup
40 INTEGER cg2dMaxIters
41 INTEGER cg2dChkResFreq
42 INTEGER nIter0
43 INTEGER nTimeSteps
44 INTEGER numStepsPerPickup
45
46 C-- COMMON /PARM_L/ Logical valued parameters used by the model.
47 C usingCartesianGrid - If TRUE grid generation will be in a cartesian
48 C coordinate frame.
49 C usingSphericalPolarGrid - If TRUE grid generation will be in a
50 C spherical polar frame.
51 C momViscosity - Flag which turns momentum friction terms on and off.
52 C momAdvection - Flag which turns advection of momentum on and off.
53 C momForcing - Flag which turns external forcing of momentum on
54 C and off.
55 C useCoriolis - Flag which turns the coriolis terms on and off.
56 C tempDiffusion - Flag which turns diffusion of temperature on
57 C and off.
58 C tempAdvection - Flag which turns advection of temperature on
59 C and off.
60 C tempForcing - Flag which turns external forcing of temperature on
61 C and off.
62 C saltDiffusion - Flag which turns diffusion of salinit on
63 C and off.
64 C saltAdvection - Flag which turns advection of salinit on
65 C and off.
66 C saltForcing - Flag which turns external forcing of salinit on
67 C and off.
68 COMMON /PARM_L/ usingCartesianGrid, usingSphericalPolarGrid,
69 & momViscosity, momAdvection, momForcing, useCoriolis,
70 & tempDiffusion, tempAdvection, tempForcing,
71 & saltDiffusion, saltAdvection, saltForcing
72 LOGICAL usingCartesianGrid
73 LOGICAL usingSphericalPolarGrid
74 LOGICAL momViscosity
75 LOGICAL momAdvection
76 LOGICAL momForcing
77 LOGICAL useCoriolis
78 LOGICAL tempDiffusion
79 LOGICAL tempAdvection
80 LOGICAL tempForcing
81 LOGICAL saltDiffusion
82 LOGICAL saltAdvection
83 LOGICAL saltForcing
84
85 C-- COMMON /PARM_R/ "Real" valued parameters used by the model.
86 C cg2dTargetResidual
87 C - Target residual for cg2d solver.
88 C delZ - Vertical grid spacing ( m ) - delZ is the distance
89 C between "w" surfaces.
90 C delX - Separation between cell faces (m) or (deg), depending
91 C delY on input flags.
92 C gravity - Accel. due to gravity ( m/s^2 )
93 C ronil - Reference density
94 C startTime - Start time for model ( s )
95 C phiMin - Latitude of southern most cell face.
96 C thetaMin - Longitude of western most cell face (this
97 C is an "inert" parameter but it is included
98 C to make geographical references simple.)
99 C rSphere - Radius of sphere for a spherical polar grid ( m ).
100 C f0 - Reference coriolis parameter ( 1/s )
101 C ( Southern edge f for beta plane )
102 C beta - df/dy ( s^-1.m^-1 )
103 C viscAh - Eddy viscosity coeff. for mixing of
104 C momentum laterally ( m^2/s )
105 C viscAz - Eddy viscosity coeff. for mixing of
106 C momentum vertically ( m^2/s )
107 C viscA4 - Biharmonic viscosity coeff. for mixing of
108 C momentum laterally ( m^4/s )
109 C diffKhT - Laplacian diffusion coeff. for mixing of
110 C heat laterally ( m^2/s )
111 C diffKzT - Laplacian diffusion coeff. for mixing of
112 C heat vertically ( m^2/s )
113 C diffK4T - Biharmonic diffusion coeff. for mixing of
114 C heat laterally ( m^4/s )
115 C diffKhS - Laplacian diffusion coeff. for mixing of
116 C salt laterally ( m^2/s )
117 C diffKzS - Laplacian diffusion coeff. for mixing of
118 C salt vertically ( m^2/s )
119 C diffK4S - Biharmonic diffusion coeff. for mixing of
120 C salt laterally ( m^4/s )
121 C deltaT - Default timestep ( s )
122 C deltaTMom - Timestep for momemtum equations ( s )
123 C deltaTtracer - Timestep for tracer equations ( s )
124 C tauCD - CD scheme coupling timescale ( 1/s )
125 C rCD - CD scheme normalised coupling parameter ( 0-1 )
126 C startTime - Starting time for this integration ( s ).
127 C endTime - Ending time for this integration ( s ).
128 C chkPtFreq - Frequency of check pointing ( s ).
129 C dumpFreq - Frequency with which model state is written to
130 C post-processing files ( s ).
131 COMMON /PARM_R/ cg2dTargetResidual, delZ, delX, delY, deltaT,
132 & deltaTmom, deltaTtracer, abeps, startTime, phiMin, thetaMin,
133 & rSphere, f0, fCori, beta, viscAh, viscAz, viscA4, diffKhT, diffKzT,
134 & diffK4T, diffKhS, diffKzS, diffK4S, delT, tauCD, rCD,
135 & gravity, rhonil, tRef, sRef,
136 & endTime, chkPtFreq, dumpFreq
137 REAL cg2dTargetResidual
138 REAL delZ(Nz)
139 REAL delX(Nx)
140 REAL delY(Ny)
141 REAL deltaT
142 REAL deltaTmom
143 REAL deltaTtracer
144 REAL abeps
145 REAL phiMin
146 REAL thetaMin
147 REAL rSphere
148 REAL f0
149 _RL beta
150 REAL viscAh
151 REAL viscAz
152 REAL viscA4
153 REAL diffKhT
154 REAL diffKzT
155 REAL diffK4T
156 REAL diffKhS
157 REAL diffKzS
158 REAL diffK4S
159 REAL delt
160 REAL tauCD
161 REAL rCD
162 REAL gravity
163 REAL rhonil
164 REAL tRef(Nz)
165 REAL sRef(Nz)
166 real Fcori(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
167 REAL startTime
168 REAL endTime
169 REAL chkPtFreq
170 REAL dumpFreq
171 COMMON /PARM_A/ HeatCapacity_Cp,
172 & Lamba_theta
173 REAL HeatCapacity_Cp
174 REAL Lamba_theta
175
176 C Equation of State (polynomial coeffients)
177 COMMON /PARM_EOS_NL/ eosC,eosSig0,eosRefT,eosRefS
178 REAL eosC(Nz+1,9),eosSig0(Nz+1),eosRefT(Nz+1),eosRefS(Nz+1)
179 C Linear equation of state
180 C tAlpha - Linear EOS thermal expansion coefficient ( 1/degree ).
181 C sBeta - Linear EOS haline contraction coefficient.
182 COMMON /PARM_EOS_LIN/ tAlpha,sBeta
183 REAL tAlpha
184 REAL sBeta

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