/[MITgcm]/MITgcm/verification/lab_sea/code_ad/SEAICE_OPTIONS.h
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revision 1.11 by ifenty, Thu Apr 28 02:09:00 2011 UTC revision 1.18 by gforget, Sat Feb 11 03:49:22 2012 UTC
# Line 2  C $Header$ Line 2  C $Header$
2  C $Name$  C $Name$
3    
4  C     *==========================================================*  C     *==========================================================*
5  C     | SEAICE_OPTIONS.h                                         |  C     | SEAICE_OPTIONS.h
6  C     | o CPP options file for sea ice package.                  |  C     | o CPP options file for sea ice package.
7  C     *==========================================================*  C     *==========================================================*
8  C     | Use this file for selecting options within the sea ice   |  C     | Use this file for selecting options within the sea ice
9  C     | package.                                                 |  C     | package.
10  C     *==========================================================*  C     *==========================================================*
11    
12  #ifndef SEAICE_OPTIONS_H  #ifndef SEAICE_OPTIONS_H
# Line 14  C     *================================= Line 14  C     *=================================
14  #include "PACKAGES_CONFIG.h"  #include "PACKAGES_CONFIG.h"
15  #include "CPP_OPTIONS.h"  #include "CPP_OPTIONS.h"
16    
17    #ifdef ALLOW_SEAICE
18    C     Package-specific Options & Macros go here
19    
20  C--   Write "text-plots" of certain fields in STDOUT for debugging.  C--   Write "text-plots" of certain fields in STDOUT for debugging.
21  #undef SEAICE_DEBUG  #undef SEAICE_DEBUG
22    
# Line 44  C--   Use the Old version of seaice_grow Line 47  C--   Use the Old version of seaice_grow
47  C     otherwise, use the merged version (with some of Ian Fenty s code)  C     otherwise, use the merged version (with some of Ian Fenty s code)
48  #define SEAICE_GROWTH_LEGACY  #define SEAICE_GROWTH_LEGACY
49    
50  C--   options only available in the merged version (from Ian Fenty s code)  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    C--   options only available in the merged version
55  #ifndef SEAICE_GROWTH_LEGACY  #ifndef SEAICE_GROWTH_LEGACY
56  C-    to switch on/off open-water freezing contribution to thickness tendency:  C-    to ensure heat conservation in the coupled ocean-seaice system
57  #define SEAICE_DO_OPEN_WATER_GROWTH  # undef SEAICE_HEAT_CONSERV_FIX
58  C-    to switch on/off ocean heat contribution to seaice cover reduction:  C-    to preclude infinitesimal ice concentrations:
59  #define SEAICE_OCN_MELT_ACT_ON_AREA  # undef ALLOW_PRECLUDE_INFINITESIMAL_AREA
60  #endif  #endif
61    
62  C--   Use the Old version of seaice_solve4temp (formerly seaice_budget_ice)  C--   The freezing point of water is a simple linear dependence to salinity.
63  C     otherwise, use Ian Fenty s version  C     The flag below is now obsolete, but kept to ease the transition
64  #define SEAICE_SOLVE4TEMP_LEGACY  C     from the old constant freezing point default (see seaice_check.F).
65    #define SEAICE_VARIABLE_FREEZING_POINT
 C--   By default the freezing point of water is set to the value of  
 C     the parameter SEAICE_freeze (=-1.96 by default). To use a  
 C     simple linear dependence of the freezing point on salinity,  
 C     set the following flag (pressure is assumed to have no effect,  
 C     which is a good assumption for the top 20 meters). With this  
 C     option defined the parameter SEAICE_freeze has no effect.  
 #undef SEAICE_VARIABLE_FREEZING_POINT  
   
 C--   Allow SEAICEuseFlooding, which converts snow to ice if submerged.  
 #define ALLOW_SEAICE_FLOODING  
66    
67  C--   By default sea ice is fresh.  Set following flag for salty ice.  C--   By default sea ice is fresh.  Set following flag for salty ice.
68  #define SEAICE_VARIABLE_SALINITY  #define SEAICE_VARIABLE_SALINITY
69    
70  C--   Track sea ice age.  C--   Tracers of ice and/or ice cover.
71  #undef SEAICE_AGE  #undef ALLOW_SITRACER
72    #ifdef ALLOW_SITRACER
73    C--   To try avoid 'spontaneous generation' of tracer maxima by advdiff.
74    # define ALLOW_SITRACER_ADVCAP
75    #endif
76    
77  C--   By default the seaice model is discretized on a B-Grid (for  C--   By default the seaice model is discretized on a B-Grid (for
78  C     historical reasons). Define the following flag to use a new  C     historical reasons). Define the following flag to use a new
# Line 100  C--   By default for B-grid dynamics sol Line 101  C--   By default for B-grid dynamics sol
101  C     indirectly via geostrophic velocities. Define following CPP  C     indirectly via geostrophic velocities. Define following CPP
102  C     in order to use ETAN instead.  C     in order to use ETAN instead.
103  # define EXPLICIT_SSH_SLOPE  # define EXPLICIT_SSH_SLOPE
104    C--   Defining this flag turns on a FV-discretization of the B-grid LSOR
105    C     solver. It is smoother and includes all metric terms, similar to the
106    C     C-grid solver. It is here for completeness, but its usefulness is
107    C     unclear.
108    # undef SEAICE_LSRBNEW
109  #endif /* SEAICE_CGRID */  #endif /* SEAICE_CGRID */
110    
111  C--   When set use MAX_HEFF to cap sea ice thickness in seaice_growth  C--   When set use MAX_HEFF to cap sea ice thickness in seaice_growth
# Line 113  C--   not recommended Line 119  C--   not recommended
119  C     enable free drift code  C     enable free drift code
120  #define SEAICE_ALLOW_FREEDRIFT  #define SEAICE_ALLOW_FREEDRIFT
121    
122    #endif /* ALLOW_SEAICE */
123  #endif /* SEAICE_OPTIONS_H */  #endif /* SEAICE_OPTIONS_H */
124    
125  CEH3 ;;; Local Variables: ***  CEH3 ;;; Local Variables: ***
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