/[MITgcm]/MITgcm/pkg/gmredi/GMREDI.h
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Contents of /MITgcm/pkg/gmredi/GMREDI.h

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Revision 1.28 - (show annotations) (download)
Wed Jan 1 23:20:48 2014 UTC (10 years, 5 months ago) by m_bates
Branch: MAIN
CVS Tags: checkpoint64s, checkpoint64u, checkpoint64t
Changes since 1.27: +7 -2 lines
File MIME type: text/plain
K3d: Added option to keep diffusivity constant in the mixed layer. Also added some diagnostics.

1 C $Header: /u/gcmpack/MITgcm/pkg/gmredi/GMREDI.h,v 1.27 2013/10/21 18:46:05 m_bates Exp $
2 C $Name: $
3
4 #ifdef ALLOW_GMREDI
5
6 C--- GM/Redi package parameters
7
8 C-- Numerical Constant
9 _RL op5
10 _RL op25
11 PARAMETER( op5 = 0.5 _d 0 )
12 PARAMETER( op25 = 0.25 _d 0 )
13
14 C-- COMMON /GM_PARAMS_L/ GM/Redi Logical-type parameters
15 C GM_AdvForm :: use Advective Form (instead of Skew-Flux form)
16 C GM_AdvSeparate :: do separately advection by Eulerian and Bolus velocity
17 C GM_useBVP :: use Boundary-Value-Problem method for Bolus transport
18 C GM_useSubMeso :: use parameterization of mixed layer (Sub-Mesoscale) eddies
19 C GM_ExtraDiag :: select extra diagnostics
20 C GM_InMomAsStress :: apply GM as a stress in momentum Eq.
21 C GM_MNC ::
22 C GM_MDSIO ::
23 C GM_useK3D :: use the 3 dimensional calculation for K
24 C GM_K3D_beta_eq_0 :: Ignores the beta term when calculating grad(q)
25 C GM_K3D_likeGM :: Makes the PV closure similar to the GM closure (for debugging only!)
26 C GM_K3D_ThickSheet:: Use a thick PV sheet (should pretty much always be false)
27 C GM_K3D_surfK :: Imposes a constant K in the surface layer
28 C GM_K3D_constRedi :: Imposes a constant K for the Redi isoneutral diffusivity
29 C GM_K3D_smooth :: Expand PV closure in terms of baroclinic modes (for debugging only!)
30 LOGICAL GM_AdvForm
31 LOGICAL GM_AdvSeparate
32 LOGICAL GM_useBVP
33 LOGICAL GM_useSubMeso
34 LOGICAL GM_ExtraDiag
35 LOGICAL GM_InMomAsStress
36 LOGICAL GM_MNC
37 LOGICAL GM_MDSIO
38 LOGICAL GM_useK3D
39 LOGICAL GM_K3D_likeGM
40 LOGICAL GM_K3D_ThickSheet
41 LOGICAL GM_K3D_surfK
42 LOGICAL GM_K3D_constRedi
43 LOGICAL GM_K3D_beta_eq_0
44 LOGICAL GM_K3D_smooth
45 COMMON /GM_PARAMS_L/
46 & GM_AdvForm, GM_AdvSeparate,
47 & GM_useBVP, GM_useSubMeso,
48 & GM_ExtraDiag, GM_MNC, GM_MDSIO,
49 & GM_InMomAsStress,
50 & GM_useK3D, GM_K3D_likeGM, GM_K3D_smooth,
51 & GM_K3D_beta_eq_0, GM_K3D_ThickSheet,
52 & GM_K3D_surfK, GM_K3D_constRedi
53
54 C-- GM/Redi Integer-type parameters
55 C GM_BVP_modeNumber :: vertical mode number used for speed "c" in BVP transport
56 C GM_K3D_NModes :: number of vertical modes used for calculating Xi in K3D
57 INTEGER GM_BVP_modeNumber
58 INTEGER GM_K3D_NModes
59 PARAMETER (GM_K3D_NModes=6)
60 COMMON /GM_PARAMS_I/
61 & GM_BVP_modeNumber
62
63 C-- COMMON /GM_PARAMS_C/ GM/Redi Character-type parameters
64 C GM_taper_scheme :: select which tapering/clipping scheme to use
65 C GM_iso2dFile :: input file for 2.D horiz scaling of Isopycnal diffusivity
66 C GM_iso1dFile :: input file for 1.D vert. scaling of Isopycnal diffusivity
67 C GM_bol2dFile :: input file for 2.D horiz scaling of Thickness diffusivity
68 C GM_bol1dFile :: input file for 1.D vert. scaling of Thickness diffusivity
69 CHARACTER*(40) GM_taper_scheme
70 CHARACTER*(MAX_LEN_FNAM) GM_iso2dFile
71 CHARACTER*(MAX_LEN_FNAM) GM_iso1dFile
72 CHARACTER*(MAX_LEN_FNAM) GM_bol2dFile
73 CHARACTER*(MAX_LEN_FNAM) GM_bol1dFile
74 COMMON /GM_PARAMS_C/
75 & GM_taper_scheme,
76 & GM_iso2dFile, GM_iso1dFile,
77 & GM_bol2dFile, GM_bol1dFile
78
79 C-- COMMON /GM_PARAMS_R/ GM/Redi real-type parameters
80 C GM_isopycK :: Isopycnal diffusivity [m^2/s] (Redi-tensor)
81 C GM_background_K :: Thickness diffusivity [m^2/s] (GM bolus transport)
82 C GM_maxSlope :: maximum slope (tapering/clipping) [-]
83 C GM_Kmin_horiz :: minimum horizontal diffusivity [m^2/s]
84 C GM_Small_Number :: epsilon used in computing the slope
85 C GM_slopeSqCutoff :: slope^2 cut-off value
86 C- Transition layer thickness definition:
87 C GM_facTrL2dz :: minimum Trans. Layer Thick. as a factor of local dz
88 C GM_facTrL2ML :: maximum Trans. Layer Thick. as a factor of Mix-Layer Depth
89 C GM_maxTransLay :: maximum Trans. Layer Thick. [m]
90 C- Boundary-Value-Problem method parameters:
91 C GM_BVP_cMin :: minimum value for wave speed parameter "c" in BVP [m/s]
92 C- mixed layer (Sub-Mesoscale) eddies parameterization:
93 C subMeso_Ceff :: efficiency coefficient of Mixed-Layer Eddies [-]
94 C subMeso_invTau :: inverse of mixing time-scale in sub-meso parameteriz. [s^-1]
95 C subMeso_LfMin :: minimum value for length-scale "Lf" [m]
96 C subMeso_Lmax :: maximum horizontal grid-scale length [m]
97 C Variable K with PV diffusion parameters:
98 C GM_K3D_gamma :: mixing efficiency for 3D eddy diffusivity [-]
99 C GM_K3D_b1 :: an empirically determined constant of O(1)
100 C GM_K3D_EadyMinDepth :: upper depth for Eady calculation
101 C GM_K3D_EadyMaxDepth :: lower depth for Eady calculation
102 C GM_maxK3D :: Upper bound on the diffusivity
103 C GM_K3D_constK :: Constant diffusivity to use when GM_useK3D=.TRUE. and GM_K3D_likeGM=.TRUE.
104 C GM_K3D_Rmax :: Upper bound on the length scale used for calculating urms
105 C GM_K3D_Rmin :: Lower bound on the length scale used for calculating the eddy radius
106 C GM_K3D_minCori :: minimum value for f (to stop things blowing up near the equator)
107 C GM_K3D_minN2 :: minimum value for the square of the buoyancy frequency
108 C GM_K3D_surfMinDepth :: minimum value for the depth of the surface layer
109 C GM_K3D_vecFreq :: Frequency at which to update the baroclinic modes
110
111 _RL GM_isopycK
112 _RL GM_background_K
113 _RL GM_maxSlope
114 _RL GM_Kmin_horiz
115 _RL GM_Small_Number
116 _RL GM_slopeSqCutoff
117 _RL GM_Visbeck_alpha
118 _RL GM_Visbeck_length
119 _RL GM_Visbeck_depth
120 _RL GM_Visbeck_minDepth
121 _RL GM_Visbeck_maxSlope
122 _RL GM_Visbeck_minVal_K
123 _RL GM_Visbeck_maxVal_K
124 _RL GM_K3D_gamma
125 _RL GM_K3D_b1
126 _RL GM_K3D_EadyMinDepth
127 _RL GM_K3D_EadyMaxDepth
128 _RL GM_K3D_Lambda
129 _RL GM_K3D_smallK
130 _RL GM_K3D_maxC
131 _RL GM_maxK3D
132 _RL GM_K3D_constK
133 _RL GM_K3D_Rmax
134 _RL GM_K3D_Rmin
135 _RL GM_K3D_minCori
136 _RL GM_K3D_minN2
137 _RL GM_K3D_surfMinDepth
138 _RL GM_K3D_vecFreq
139 _RL GM_facTrL2dz
140 _RL GM_facTrL2ML
141 _RL GM_maxTransLay
142 _RL GM_Scrit
143 _RL GM_Sd
144 _RL GM_BVP_cMin
145 _RL subMeso_Ceff
146 _RL subMeso_invTau
147 _RL subMeso_LfMin
148 _RS subMeso_Lmax
149 COMMON /GM_PARAMS_RL/
150 & GM_isopycK, GM_background_K,
151 & GM_maxSlope,
152 & GM_Kmin_horiz,
153 & GM_Small_Number, GM_slopeSqCutoff,
154 & GM_Visbeck_alpha, GM_Visbeck_length,
155 & GM_Visbeck_depth,
156 & GM_Visbeck_minDepth, GM_Visbeck_maxSlope,
157 & GM_Visbeck_minVal_K, GM_Visbeck_maxVal_K,
158 & GM_K3D_gamma, GM_K3D_b1, GM_K3D_EadyMinDepth,
159 & GM_K3D_EadyMaxDepth, GM_K3D_Lambda,
160 & GM_K3D_smallK, GM_K3D_maxC,
161 & GM_maxK3D, GM_K3D_minCori, GM_K3D_minN2,
162 & GM_K3D_surfMinDepth, GM_K3D_Rmax, GM_K3D_Rmin,
163 & GM_K3D_constK, GM_K3D_vecFreq,
164 & GM_facTrL2dz, GM_facTrL2ML, GM_maxTransLay,
165 & GM_Scrit, GM_Sd, GM_BVP_cMin,
166 & subMeso_Ceff, subMeso_invTau, subMeso_LfMin
167 COMMON /GM_PARAMS_RS/
168 & subMeso_Lmax
169
170 C-- COMMON /GM_DERIVED_PAR/ other GM/Redi parameters
171 C (derived from previous block and not directly user configured)
172 _RL GM_rMaxSlope
173 _RL GM_skewflx
174 _RL GM_advect
175 _RL GM_BVP_rModeNumber
176 _RL GM_BVP_cHat2Min
177 COMMON /GM_DERIVED_PAR/
178 & GM_rMaxSlope,
179 & GM_skewflx, GM_advect,
180 & GM_BVP_rModeNumber, GM_BVP_cHat2Min
181
182
183 C-- COMMON /GM_COEFFICIENTS/ GM/Redi scaling coefficients
184 C defined at grid-cell center (tracer location)
185 C GM_isoFac2d :: 2.D horiz scaling factor [-] of Isopycnal diffusivity
186 C GM_bolFac2d :: 2.D horiz scaling factor [-] of Thickness diffusivity
187 C GM_isoFac1d :: 1.D vert. scaling factor [-] of Isopycnal diffusivity
188 C GM_bolFac1d :: 1.D vert. scaling factor [-] of Thickness diffusivity
189 _RS GM_isoFac2d(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
190 _RS GM_bolFac2d(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
191 _RS GM_isoFac1d(Nr)
192 _RS GM_bolFac1d(Nr)
193 COMMON /GM_COEFFICIENTS/
194 & GM_isoFac2d, GM_bolFac2d, GM_isoFac1d, GM_bolFac1d
195
196 C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----|
197 C--- GM/Redi tensor elements
198
199 C Bottom row of tensor corresponds to W points
200 C Kwx :: K_31 element of GM/Redi tensor, X direction at W point
201 C Kwy :: K_32 element of GM/Redi tensor, Y direction at W point
202 C Kwz :: K_33 element of GM/Redi tensor, Z direction at W point
203 _RL Kwx(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr,nSx,nSy)
204 _RL Kwy(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr,nSx,nSy)
205 _RL Kwz(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr,nSx,nSy)
206 COMMON /GM_Wtensor/ Kwx,Kwy,Kwz
207
208 #ifdef GM_NON_UNITY_DIAGONAL
209 C Horizontal part of the tensor
210 C Kux :: K_11 element of GM/Redi tensor, X direction at U point
211 C Kvy :: K_22 element of GM/Redi tensor, Y direction at V point
212 _RL Kux(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr,nSx,nSy)
213 _RL Kvy(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr,nSx,nSy)
214 COMMON /GM_HorTensor/ Kux,Kvy
215 #else
216 _RL Kux,Kvy
217 PARAMETER(Kux=1.,Kvy=1.)
218 #endif
219
220 #ifdef GM_EXTRA_DIAGONAL
221 C First/second rows of tensor corresponds to U/V points
222 C Kuz :: K_13 element of GM/Redi tensor, Z direction at U point
223 C Kvz :: K_23 element of GM/Redi tensor, Z direction at V point
224 _RL Kuz(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr,nSx,nSy)
225 _RL Kvz(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr,nSx,nSy)
226 COMMON /GM_UVtensor/ Kuz,Kvz
227 #else
228 _RL Kuz,Kvz
229 PARAMETER(Kuz=1.,Kvz=1.)
230 #endif
231
232 #ifdef GM_BOLUS_ADVEC
233 C GM advection formulation: bolus velocities are derived from 2
234 C streamfunctions PsiX and PsiY :
235 _RL GM_PsiX(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr,nSx,nSy)
236 _RL GM_PsiY(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr,nSx,nSy)
237 COMMON /GM_BOLUS/ GM_PsiX,GM_PsiY
238 #endif
239
240 #ifdef GM_VISBECK_VARIABLE_K
241 C GM mixing/stirring coefficient (spatially variable in horizontal
242 C for Visbeck et al. parameterization)
243 _RL VisbeckK(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
244 COMMON /GM_Visbeck/ VisbeckK
245 #endif
246
247 #ifdef GM_K3D
248 C K3D :: The three dimensional eddy mixing coeffixint [m**2/s]
249 _RL K3D(1-Olx:sNx+Olx,1-Oly:sNy+Oly,1:Nr,nSx,nSy)
250 _RL modesC(1,1-Olx:sNx+Olx,1-Oly:sNy+Oly,1:Nr,nSx,nSy)
251 _RL modesW(GM_K3D_NModes,1-Olx:sNx+Olx,
252 & 1-Oly:sNy+Oly,1:Nr,nSx,nSy)
253 _RL modesS(GM_K3D_NModes,1-Olx:sNx+Olx,
254 & 1-Oly:sNy+Oly,1:Nr,nSx,nSy)
255 _RL Rdef(1-Olx:sNx+Olx,1-Oly:sNy+Oly,nSx,nSy)
256
257
258 COMMON /GM_K3D/ K3D, modesC, modesW, modesS, Rdef
259 #endif
260 #endif /* ALLOW_GMREDI */
261
262 CEH3 ;;; Local Variables: ***
263 CEH3 ;;; mode:fortran ***
264 CEH3 ;;; End: ***

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