/[MITgcm]/MITgcm_contrib/verification_other/shelfice_remeshing/code/SHELFICE.h
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Revision 1.6 - (show annotations) (download)
Mon Apr 4 12:53:15 2016 UTC (9 years, 3 months ago) by dgoldberg
Branch: MAIN
CVS Tags: checkpoint65v
Changes since 1.5: +6 -3 lines
File MIME type: text/plain
new subroutine to dig under grounded ice to ensure connectivity

1 C $Header: /u/gcmpack/MITgcm_contrib/verification_other/shelfice_remeshing/code/SHELFICE.h,v 1.5 2016/01/26 10:49:13 dgoldberg Exp $
2 C $Name: $
3
4 #ifdef ALLOW_SHELFICE
5
6 CBOP
7 C !ROUTINE: SHELFICE.h
8
9 C !DESCRIPTION: \bv
10 C *==========================================================*
11 C | SHELFICE.h
12 C | o Basic header thermodnynamic shelf ice package.
13 C | Contains all SHELFICE field declarations.
14 C *==========================================================*
15
16 C-----------------------------------------------------------------------
17 C
18 C-- Constants that can be set in data.shelfice
19 C SHELFICEtopoFile :: File containing the topography of the
20 C shelfice draught (unit=m)
21 C SHELFICEmassFile :: name of shelfice Mass file
22 C SHELFICEloadAnomalyFile :: name of shelfice load anomaly file
23 C SHELFICEMassDynTendFile :: file name for other mass tendency
24 C (e.g. dynamics)
25 C useISOMIPTD :: use simple ISOMIP thermodynamics, def: F
26 C SHELFICEconserve :: use conservative form of H&O-thermodynamics
27 C following Jenkins et al. (2001, JPO), def: F
28 C SHELFICEMassStepping :: flag to step forward ice shelf mass/thickness
29 C accounts for melting/freezing & dynamics
30 C (from file or from coupling), def: F
31 C SHELFICEDynMassOnly :: step ice mass ONLY with Shelficemassdyntendency
32 C (not melting/freezing) def: F
33 C SHELFICEboundaryLayer :: turn on vertical merging of cells to for a
34 C boundary layer of drF thickness, def: F
35 C SHELFICEthickboundaryLayer
36 C :: similar to boundary layer but allow for a thicker
37 C layer, encompassing 3 cells in vertical, def: F
38 C SHELFICErealFWflux :: ensure vert advective flux at bdry uses top cell
39 C value rather than "boundary layer" value F
40 C SHELFICEadvDiffHeatFlux :: use advective-diffusive heat flux into the
41 C ice shelf instead of default diffusive heat
42 C flux, see Holland and Jenkins (1999),
43 C eq.21,22,26,31; def: F
44 C SHELFICEheatTransCoeff :: constant heat transfer coefficient that
45 C determines heat flux into shelfice
46 C (def: 1e-4 m/s)
47 C SHELFICEsaltTransCoeff :: constant salinity transfer coefficient that
48 C determines salt flux into shelfice
49 C (def: 5.05e-3 * 1e-4 m/s)
50 C -----------------------------------------------------------------------
51 C SHELFICEuseGammaFrict :: use velocity dependent exchange coefficients,
52 C see Holland and Jenkins (1999), eq.11-18,
53 C with the following parameters (def: F):
54 C shiCdrag :: quadratic drag coefficient to compute uStar
55 C (def: 0.0015)
56 C shiZetaN :: ??? (def: 0.052)
57 C shiRc :: ??? (not used, def: 0.2)
58 C shiPrandtl, shiSchmidt :: constant Prandtl (13.8) and Schmidt (2432.0)
59 C numbers used to compute gammaTurb
60 C shiKinVisc :: constant kinetic viscosity used to compute
61 C gammaTurb (def: 1.95e-5)
62 C SHELFICERemeshFrequency :: Frequency that size of etaN is checked to
63 C trigger remesh
64 C SHELFICESplitThreshold :: Max size of etaN allowed before a remesh
65 C SHELFICEMergeThreshold :: Min size of etaN allowed before a remesh
66 C -----------------------------------------------------------------------
67 C SHELFICEDragLinear :: linear drag at bottom shelfice (1/s)
68 C SHELFICEDragQuadratic :: quadratic drag at bottom shelfice (default
69 C = shiCdrag or bottomDragQuadratic)
70 C no_slip_shelfice :: set slip conditions for shelfice separately,
71 C (by default the same as no_slip_bottom, but
72 C really should be false when there is linear
73 C or quadratic drag)
74 C SHELFICElatentHeat :: latent heat of fusion (def: 334000 J/kg)
75 C SHELFICEwriteState :: enable output
76 C SHELFICEHeatCapacity_Cp :: heat capacity of ice shelf (def: 2000 J/K/kg)
77 C rhoShelfIce :: density of ice shelf (def: 917.0 kg/m^3)
78 C
79 C SHELFICE_dump_mnc :: use netcdf for snapshot output
80 C SHELFICE_tave_mnc :: use netcdf for time-averaged output
81 C SHELFICE_dumpFreq :: analoguous to dumpFreq (= default)
82 C SHELFICE_taveFreq :: analoguous to taveFreq (= default)
83 C
84 C-- Fields
85 C ktopC :: index of the top "wet cell" (2D)
86 C R_shelfIce :: shelfice topography [m]
87 C R_Grounding :: "grounded" ice topography [m]
88 C shelficeMassInit :: ice-shelf mass (per unit area) (kg/m^2)
89 C shelficeMass :: ice-shelf mass (per unit area) (kg/m^2)
90 C shelfIceMassDynTendency :: other mass balance tendency (kg/m^2/s)
91 C :: (e.g., from dynamics)
92 C shelficeLoadAnomaly :: pressure load anomaly of shelfice (Pa)
93 C shelficeHeatFlux :: upward heat flux (W/m^2)
94 C shelficeFreshWaterFlux :: upward fresh water flux (virt. salt flux)
95 C (kg/m^2/s)
96 C shelficeForcingT :: analogue of surfaceForcingT
97 C units are r_unit.Kelvin/s (=Kelvin.m/s if r=z)
98 C shelficeForcingS :: analogue of surfaceForcingS
99 C units are r_unit.psu/s (=psu.m/s if r=z)
100 C-----------------------------------------------------------------------
101 C \ev
102 CEOP
103
104 COMMON /SHELFICE_PARMS_I/ kTopC,
105 & SHELFICEselectDragQuadr,
106 & shelfice_etarestore_spongewidth
107 INTEGER kTopC (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
108 INTEGER SHELFICEselectDragQuadr
109 INTEGER shelfice_etarestore_spongewidth
110
111 COMMON /SHELFICE_PARMS_R/
112 & SHELFICE_dumpFreq, SHELFICE_taveFreq,
113 & SHELFICEheatTransCoeff, SHELFICEsaltTransCoeff,
114 & rhoShelfice, SHELFICEkappa,
115 & SHELFICElatentHeat,
116 & SHELFICEheatCapacity_Cp,
117 & SHELFICEthetaSurface,
118 & SHELFICEDragLinear, SHELFICEDragQuadratic,
119 & shiCdrag, shiZetaN, shiRc,
120 & shiPrandtl, shiSchmidt, shiKinVisc,
121 & SHELFICERemeshFrequency,
122 & SHELFICESplitThreshold,
123 & SHELFICEMergeThreshold,
124 & shelficeEtaRelax
125 _RL SHELFICE_dumpFreq, SHELFICE_taveFreq
126 _RL SHELFICEheatTransCoeff
127 _RL SHELFICEsaltTransCoeff
128 _RL SHELFICElatentHeat
129 _RL SHELFICEheatCapacity_Cp
130 _RL rhoShelfice
131 _RL SHELFICEkappa
132 _RL SHELFICEDragLinear
133 _RL SHELFICEDragQuadratic, SHELFICEMergeThreshold
134 _RL SHELFICEthetaSurface, SHELFICESplitThreshold
135 _RL shiCdrag, shiZetaN, shiRc, SHELFICERemeshFrequency
136 _RL shiPrandtl, shiSchmidt, shiKinVisc
137 _RL SHELFICEGroundW, SHELFICEGroundC, shelficeEtaRelax
138 COMMON /SHELFICE_FIELDS_RL/
139 & shelficeMass, shelficeMassInit,
140 & shelficeLoadAnomaly,
141 & shelficeForcingT, shelficeForcingS,
142 & shiTransCoeffT, shiTransCoeffS, EFFMASS
143 _RL shelficeMass (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
144 _RL shelficeMassInit (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
145 _RL shelficeLoadAnomaly (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
146 _RL shelficeForcingT (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
147 _RL shelficeForcingS (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
148 _RL shiTransCoeffT (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
149 _RL shiTransCoeffS (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
150 _RL EFFMASS (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
151 _RL SeaLevelRestore (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
152
153 COMMON /SHELFICE_FIELDS_RS/
154 & R_shelfIce, R_MWCT,
155 & shelficeHeatFlux,
156 & shelfIceFreshWaterFlux,
157 & shelfIceMassDynTendency
158 _RS R_shelfIce (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
159 _RS R_MWCT (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
160 _RS shelficeHeatFlux (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
161 _RS shelficeFreshWaterFlux(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
162 _RS
163 & shelfIceMassDynTendency(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
164
165 #ifdef ALLOW_SHIFWFLX_CONTROL
166 COMMON /SHELFICE_MASKS_CTRL/ maskSHI
167 _RS maskSHI (1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr,nSx,nSy)
168 #endif /* ALLOW_SHIFWFLX_CONTROL */
169
170 LOGICAL SHELFICEisOn
171 LOGICAL useISOMIPTD
172 LOGICAL SHELFICEconserve
173 LOGICAL SHELFICEboundaryLayer
174 LOGICAL SHELFICEthickBoundaryLayer
175 LOGICAL SHELFICErealFWflux
176 LOGICAL no_slip_shelfice
177 LOGICAL SHELFICEwriteState
178 LOGICAL SHELFICE_dump_mdsio
179 LOGICAL SHELFICE_tave_mdsio
180 LOGICAL SHELFICE_dump_mnc
181 LOGICAL SHELFICE_tave_mnc
182 LOGICAL SHELFICEadvDiffHeatFlux
183 LOGICAL SHELFICEuseGammaFrict
184 LOGICAL SHELFICEMassStepping
185 LOGICAL SHELFICEDynMassOnly
186 LOGICAL SHELFICEEtaSponge
187 LOGICAL SHELFICE_dig_ice
188 COMMON /SHELFICE_PARMS_L/
189 & SHELFICEisOn,
190 & useISOMIPTD,
191 & SHELFICEconserve,
192 & SHELFICErealFWflux,
193 & SHELFICEboundaryLayer,
194 & SHELFICEthickBoundaryLayer,
195 & no_slip_shelfice,
196 & SHELFICEwriteState,
197 & SHELFICE_dump_mdsio,
198 & SHELFICE_tave_mdsio,
199 & SHELFICE_dump_mnc,
200 & SHELFICE_tave_mnc,
201 & SHELFICEadvDiffHeatFlux,
202 & SHELFICEuseGammaFrict,
203 & SHELFICEMassStepping,
204 & SHELFICEDynMassOnly,
205 & SHELFICEEtaSponge,
206 & SHELFICE_dig_ice
207
208 CHARACTER*(MAX_LEN_FNAM) SHELFICEloadAnomalyFile
209 CHARACTER*(MAX_LEN_FNAM) SHELFICEmassFile
210 CHARACTER*(MAX_LEN_FNAM) SHELFICEGroundTopoFile
211 CHARACTER*(MAX_LEN_FNAM) SHELFICEtopoFile
212 CHARACTER*(MAX_LEN_FNAM) SHELFICEMassDynTendFile
213 CHARACTER*(MAX_LEN_FNAM) SHELFICEGroundInitFile
214 CHARACTER*(MAX_LEN_FNAM) SHELFICETransCoeffTFile
215
216
217 COMMON /SHELFICE_PARM_C/
218 & SHELFICEloadAnomalyFile,
219 & SHELFICEmassFile,
220 & SHELFICEtopoFile,
221 & SHELFICEGroundTopoFile,
222 & SHELFICEMassDynTendFile,
223 & SHELFICEGroundInitFile,
224 & SHELFICETransCoeffTFile
225
226 #endif /* ALLOW_SHELFICE */

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