/[MITgcm]/MITgcm_contrib/dgoldberg/streamice/STREAMICE.h
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Contents of /MITgcm_contrib/dgoldberg/streamice/STREAMICE.h

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Revision 1.3 - (show annotations) (download)
Thu May 17 21:30:17 2012 UTC (13 years, 2 months ago) by heimbach
Branch: MAIN
Changes since 1.2: +5 -2 lines
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Small modifs (don't do much)

1 C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----|
2
3 #ifdef ALLOW_STREAMICE
4
5 C -------------------------- REAL PARAMS ---------------------------------------------------
6
7 COMMON /STREAMICE_PARMS_R/
8 & streamice_density, streamice_density_ocean_avg,
9 & A_glen_isothermal, n_glen, eps_glen_min,
10 & C_basal_fric_const, n_basal_friction, streamice_input_flux_unif,
11 & streamice_vel_update, streamice_cg_tol, streamice_nonlin_tol,
12 & streamice_CFL_factor
13 _RL streamice_density, streamice_density_ocean_avg
14 _RL A_glen_isothermal, n_glen, eps_glen_min
15 _RL C_basal_fric_const
16 _RL n_basal_friction
17 _RL streamice_input_flux_unif
18 _RL streamice_vel_update
19 _RL streamice_cg_tol, streamice_nonlin_tol
20 _RL streamice_CFL_factor
21
22 C parms for parameterized initial thickness
23 C SHELF_MAX_DRAFT: max thickness of ice in m
24 C SHELF_MIN_DRAFT: min thickness of ice in m
25 C SHELF_EDGE_POS: extent of ice shelf in (km?)
26 C SHELF_SLOPE_SCALE: dist over which shelf slopes (km?)
27 C SHELF_FLAT_WIDTH: width of flat shelf (km?)
28 C also must be aware of units (m for cartesian, deg for curvilinear, m/deg for CYLINDRICAL POLAR)
29 C FLOW_DIR: 1.0=west, 2.0=east, 3.0=south, 4.0=north
30
31 COMMON /STREAMICE_H_INIT_R/
32 & shelf_max_draft,
33 & shelf_min_draft,
34 & shelf_edge_pos,
35 & shelf_slope_scale,
36 & shelf_flat_width,
37 & flow_dir
38 _RL shelf_max_draft
39 _RL shelf_min_draft
40 _RL shelf_edge_pos
41 _RL shelf_slope_scale
42 _RL shelf_flat_width
43 _RL flow_dir
44
45 C -------------------------- INT PARAMS ---------------------------------------------------
46
47 INTEGER streamice_max_nl
48 PARAMETER ( streamice_max_nl = 100 )
49
50 COMMON /STREAMICE_PARMS_I/
51 & streamice_max_cg_iter, streamice_max_nl_iter,
52 & streamice_vel_upd_counter, streamice_nstep_velocity,
53 & streamice_n_sub_regularize
54 INTEGER streamice_max_cg_iter, streamice_max_nl_iter
55 INTEGER streamice_vel_upd_counter, streamice_nstep_velocity
56 INTEGER streamice_n_sub_regularize
57
58 C -------------------------- CHAR PARAMS ---------------------------------------------------
59
60 CHARACTER*(MAX_LEN_FNAM) STREAMICEthickFile
61 CHARACTER*(MAX_LEN_FNAM) STREAMICEthickInit
62 CHARACTER*(MAX_LEN_FNAM) STREAMICEcalveMaskFile
63 COMMON /STREAMICE_PARM_C/
64 & STREAMICEthickInit,
65 & STREAMICEthickFile,
66 & STREAMICEcalveMaskFile
67
68 C -------------------------- LOGICAL PARAMS ---------------------------------------------------
69
70 LOGICAL STREAMICEison
71 LOGICAL STREAMICE_dump_mdsio
72 LOGICAL STREAMICE_tave_mdsio
73 LOGICAL STREAMICE_dump_mnc
74 LOGICAL STREAMICE_tave_mnc
75 LOGICAL STREAMICE_GL_regularize, STREAMICE_move_front
76 LOGICAL STREAMICE_calve_to_mask
77 LOGICAL STREAMICE_construct_matrix
78 LOGICAL STREAMICE_lower_cg_tol
79 COMMON /STREAMICE_PARM_L/
80 & STREAMICEison,
81 & STREAMICE_dump_mdsio, STREAMICE_tave_mdsio,
82 & STREAMICE_dump_mnc, STREAMICE_tave_mnc,
83 & STREAMICE_GL_regularize, STREAMICE_move_front,
84 & STREAMICE_calve_to_mask,
85 & STREAMICE_construct_matrix,
86 & STREAMICE_lower_cg_tol
87
88 C -------------------------- AND NOW ARRAYS ---------------------------------------------------
89
90 C EXPLANATION OF MASKS
91
92 C STREAMICE_hmask VALUES 1=ice-covered cell
93 C 2=partially ice-covered cell (no dynamics)
94 C 0=ice-free cell (for now, it means the cell
95 C is treated as an open-ocean cell
96 C that ice shelf can flow into)
97 C -1=outside computational domain; will not change
98 C
99 C STREAMICE_umask VALUES 1=degree of freedom;
100 C 0=homogeneous dirich condition
101 C 3=inhomogeneous dirich condition
102
103 C STREAMICE_vmask similar to umask
104
105 C STREAMICE_ufacemask VALUES -1=unset,
106 C 0=no-flow boundary,
107 C 1=no-stress bdry
108 C 2=stress bdry condition,
109 C 3=inhomogeneous dirichlet boundary,
110 C 4=flux boundary: at these faces a flux will be specified by u_flux_bdry_SI
111 C
112 C STREAMICE_vfacemask similar to ufacemask
113 C STREAMICE_ufacemask_bdry field initialized at the beginning of simulation
114 C specified all ufacemask values except for calving front
115 C CONSTANT FOR A SIMULATION (ie not changes after streamice_init_fixed)
116 C STREAMICE_vfacemask_bdry CONSTANT FOR A SIMULATION
117 C STREAMICE_calve_mask specified allowed extent of ice shelf
118 C (should be integer, but don't know howvi sre to read ints from file)
119 C not necessarily used, but CONSTANT FOR A SIMULATION
120 C STREAMICE_float_cond will only be used if partial floatation is implemented
121
122 C Short arrays (e.g. masks)
123 COMMON /STREAMICE_FIELDS_RS/
124 & STREAMICE_hmask,
125 & STREAMICE_umask,
126 & STREAMICE_vmask,
127 & STREAMICE_ufacemask,
128 & STREAMICE_vfacemask,
129 & STREAMICE_ufacemask_bdry,
130 & STREAMICE_vfacemask_bdry,
131 & STREAMICE_float_cond,
132 & STREAMICE_calve_mask
133 _RS STREAMICE_hmask (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
134 _RS STREAMICE_umask (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
135 _RS STREAMICE_vmask (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
136 _RS STREAMICE_ufacemask
137 & (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
138 _RS STREAMICE_vfacemask
139 & (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
140 _RS STREAMICE_ufacemask_bdry
141 & (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
142 _RS STREAMICE_vfacemask_bdry
143 & (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
144 _RS STREAMICE_float_cond
145 & (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
146 _RS STREAMICE_calve_mask
147 & (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
148
149 C NOTES :
150 C STREAMICE_ufacemask_bdry, STREAMICE_vfacemask_bdry ARE CONSTANT (FIXED)
151 C STREAMICE_hmask IS PART OF **STATE**
152 C All other masks are updated within a timestep BASED ON STREAMICE_hmask
153
154 C Number of quadrature points are hardcoded.. could turn into a CPP macro
155
156 C REAL ARRAYS
157
158 COMMON /STREAMICE_FIELDS_RL/
159 & H_streamice,
160 & U_streamice,
161 & V_streamice,
162 & visc_streamice,
163 & tau_beta_eff_streamice,
164 & float_frac_streamice,
165 & base_el_streamice,
166 & surf_el_streamice,
167 & area_shelf_streamice,
168 & mass_ice_streamice,
169 & u_flux_bdry_SI,
170 & v_flux_bdry_SI,
171 & h_bdry_values_SI,
172 & u_bdry_values_SI,
173 & v_bdry_values_SI,
174 & STREAMICE_dummy_array,
175 & C_basal_friction
176 _RL H_streamice (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
177 _RL U_streamice (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
178 _RL V_streamice (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
179 _RL visc_streamice (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
180 _RL tau_beta_eff_streamice(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
181 _RL float_frac_streamice (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
182 _RL surf_el_streamice (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
183 _RL base_el_streamice (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
184 _RL area_shelf_streamice (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
185 _RL mass_ice_streamice (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
186 _RL u_flux_bdry_SI (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
187 _RL v_flux_bdry_SI (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
188 _RL h_bdry_values_SI (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
189 _RL u_bdry_values_SI (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
190 _RL v_bdry_values_SI (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
191 _RL C_basal_friction (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
192
193 _RL STREAMICE_dummy_array (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
194
195 C NOTES :
196 C REAL ARRAYS THAT COMPRISE "STATE":
197 C H_streamice,
198 C U_streamice,
199 C V_streamice,
200 C visc_streamice,
201 C tau_beta_eff_streamice,
202 C area_shelf_streamice
203 C (and don't forget STREAMICE_hmask)
204 C
205 C visc & tau are now calculated based on U,V in streamice_vel_solve
206 C but with Hybdrid stress formulation they will become part of
207 C velocity initial guess, so they are kept
208
209
210 #endif /* ALLOW_STREAMICE */
211
212 CEH3 ;;; Local Variables: ***
213 CEH3 ;;; mode:fortran ***
214 CEH3 ;;; End: ***

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