/[MITgcm]/MITgcm/verification/lab_sea/code/SEAICE_OPTIONS.h
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Revision 1.26 - (hide annotations) (download)
Sat Mar 3 03:37:39 2012 UTC (10 years, 4 months ago) by gforget
Branch: MAIN
Changes since 1.25: +6 -1 lines
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- SEAICE_OPTIONS.h : define MCPHEE_OCEAN_ICE_HEAT_FLUX and GRADIENT_MIXED_LAYER_TURBULENCE_FACTOR
 that only serve the purpose of stopping in seaice_check to aknowledge the change of defaults.

1 gforget 1.26 C $Header: /u/gcmpack/MITgcm/verification/lab_sea/code/SEAICE_OPTIONS.h,v 1.25 2012/02/13 23:25:07 gforget Exp $
2 dimitri 1.8 C $Name: $
3 dimitri 1.2
4 jmc 1.17 C *==========================================================*
5 jmc 1.20 C | SEAICE_OPTIONS.h
6     C | o CPP options file for sea ice package.
7 jmc 1.17 C *==========================================================*
8 jmc 1.20 C | Use this file for selecting options within the sea ice
9     C | package.
10 jmc 1.17 C *==========================================================*
11 dimitri 1.2
12 edhill 1.4 #ifndef SEAICE_OPTIONS_H
13     #define SEAICE_OPTIONS_H
14     #include "PACKAGES_CONFIG.h"
15 dimitri 1.2 #include "CPP_OPTIONS.h"
16    
17 jmc 1.20 #ifdef ALLOW_SEAICE
18     C Package-specific Options & Macros go here
19    
20 dimitri 1.2 C-- Write "text-plots" of certain fields in STDOUT for debugging.
21     #undef SEAICE_DEBUG
22    
23     C-- Allow sea-ice dynamic code.
24     C This option is provided to allow use of TAMC
25     C on the thermodynamics component of the code only.
26     C Sea-ice dynamics can also be turned off at runtime
27     C using variable SEAICEuseDYNAMICS.
28     #define SEAICE_ALLOW_DYNAMICS
29    
30     C-- By default, the sea-ice package uses its own integrated bulk
31     C formulae to compute fluxes (fu, fv, EmPmR, Qnet, and Qsw) over
32     C open-ocean. When this flag is set, these variables are computed
33     C in a separate external package, for example, pkg/exf, and then
34     C modified for sea-ice effects by pkg/seaice.
35 dimitri 1.9 #define SEAICE_EXTERNAL_FLUXES
36 dimitri 1.2
37 dimitri 1.6 C-- By default, the sea-ice package uses 2-category thermodynamics.
38     C When this flag is set, an 8-category calculation of ice
39     C thermodynamics is carried out in groatb.F
40 dimitri 1.8 C Note the pickup_seaice.* generated by this option differ
41     C from those generated with the default 2-category model.
42     C Therefore it is not possible to switch between the two
43     C in the middle of an integration.
44     #undef SEAICE_MULTICATEGORY
45    
46 jmc 1.17 C-- Use the Old version of seaice_growth (close to cvs version 1.70)
47     C otherwise, use the merged version (with some of Ian Fenty s code)
48     #define SEAICE_GROWTH_LEGACY
49    
50 gforget 1.24 C-- Since the missing sublimation term is now included
51     C this flag is needed for backward compatibility
52     #define SEAICE_DISABLE_SUBLIM
53    
54 gforget 1.25 C-- Suspected missing term in coupled ocn-ice heat budget (to be further tested)
55     #define SEAICE_DISABLE_HEATCONSFIX
56    
57 gforget 1.23 C-- options only available in the merged version
58 jmc 1.17 #ifndef SEAICE_GROWTH_LEGACY
59 jmc 1.20 C- to ensure heat conservation in the coupled ocean-seaice system
60     # undef SEAICE_HEAT_CONSERV_FIX
61     C- to preclude infinitesimal ice concentrations:
62     # undef ALLOW_PRECLUDE_INFINITESIMAL_AREA
63 jmc 1.17 #endif
64    
65 gforget 1.24 C-- The freezing point of water is a simple linear dependence to salinity.
66     C The flag below is now obsolete, but kept to ease the transition
67     C from the old constant freezing point default (see seaice_check.F).
68 gforget 1.16 #define SEAICE_VARIABLE_FREEZING_POINT
69 dimitri 1.8
70 gforget 1.26 C-- The flags below are obsolete, but kept to ease the transition
71     C from the old default to the new one (see seaice_check.F).
72     #define MCPHEE_OCEAN_ICE_HEAT_FLUX
73     #define GRADIENT_MIXED_LAYER_TURBULENCE_FACTOR
74    
75 dimitri 1.8 C-- By default sea ice is fresh. Set following flag for salty ice.
76 ifenty 1.19 #define SEAICE_VARIABLE_SALINITY
77 dimitri 1.8
78 jmc 1.20 C-- Tracers of ice and/or ice cover.
79 gforget 1.21 #define ALLOW_SITRACER
80 jmc 1.20 #ifdef ALLOW_SITRACER
81     C-- To try avoid 'spontaneous generation' of tracer maxima by advdiff.
82     # define ALLOW_SITRACER_ADVCAP
83     #endif
84    
85 jmc 1.17 C-- By default the seaice model is discretized on a B-Grid (for
86 dimitri 1.8 C historical reasons). Define the following flag to use a new
87     C (not thoroughly) test version on a C-grid
88     #define SEAICE_CGRID
89    
90 jmc 1.17 C-- Only for the C-grid version it is possible to
91 dimitri 1.8 #ifdef SEAICE_CGRID
92 dimitri 1.11 C enable EVP code by defining the following flag
93 dimitri 1.14 # define SEAICE_ALLOW_EVP
94     # ifdef SEAICE_ALLOW_EVP
95 mlosch 1.13 C-- When set use SEAICE_zetaMin and SEAICE_evpDampC to limit
96     C-- viscosities from below and above in seaice_evp
97 gforget 1.16 C-- not necessary, and not recommended
98 dimitri 1.14 # define SEAICE_ALLOW_CLIPZETA
99     # endif /* SEAICE_ALLOW_EVP */
100 dimitri 1.11 C allow the truncated ellipse rheology (runtime flag SEAICEuseTEM)
101 dimitri 1.14 # undef SEAICE_ALLOW_TEM
102     #else /* not SEAICE_CGRID, but old B-grid */
103     C-- By default for B-grid dynamics solver wind stress under sea-ice is
104     C set to the same value as it would be if there was no sea-ice.
105     C Define following CPP flag for B-grid ice-ocean stress coupling.
106     # define SEAICE_BICE_STRESS
107    
108     C-- By default for B-grid dynamics solver surface tilt is obtained
109     C indirectly via geostrophic velocities. Define following CPP
110     C in order to use ETAN instead.
111     # define EXPLICIT_SSH_SLOPE
112 jmc 1.20 C-- Defining this flag turns on a FV-discretization of the B-grid LSOR
113     C solver. It is smoother and includes all metric terms, similar to the
114     C C-grid solver. It is here for completeness, but its usefulness is
115     C unclear.
116     # undef SEAICE_LSRBNEW
117 dimitri 1.8 #endif /* SEAICE_CGRID */
118    
119     C-- When set use MAX_HEFF to cap sea ice thickness in seaice_growth
120     #undef SEAICE_CAP_HEFF
121 jmc 1.17 C-- When set limit the Ice-Loading to mass of 1/5 of Surface ocean grid-box
122     #undef SEAICE_CAP_ICELOAD
123 mlosch 1.12 C-- When set use SEAICE_clipVelocties = .true., to clip U/VICE at 40cm/s,
124 gforget 1.16 C-- not recommended
125 mlosch 1.12 #define SEAICE_ALLOW_CLIPVELS
126 edhill 1.4
127 gforget 1.15 C enable free drift code
128     #define SEAICE_ALLOW_FREEDRIFT
129    
130 jmc 1.20 #endif /* ALLOW_SEAICE */
131 edhill 1.4 #endif /* SEAICE_OPTIONS_H */
132 dimitri 1.8
133     CEH3 ;;; Local Variables: ***
134     CEH3 ;;; mode:fortran ***
135     CEH3 ;;; End: ***

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