/[MITgcm]/MITgcm/pkg/seaice/SEAICE_OPTIONS.h
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revision 1.59 by gforget, Thu Feb 9 03:42:32 2012 UTC revision 1.60 by gforget, Sat Feb 11 03:35:01 2012 UTC
# Line 47  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--   Since the missing sublimation term is now included
51    C     this flag is needed for backward compatibility
52    #undef SEAICE_DISABLE_SUBLIM
53    
54  C--   options only available in the merged version  C--   options only available in the merged version
55  #ifndef SEAICE_GROWTH_LEGACY  #ifndef SEAICE_GROWTH_LEGACY
56  C-    to ensure heat conservation in the coupled ocean-seaice system  C-    to ensure heat conservation in the coupled ocean-seaice system
# Line 55  C-    to preclude infinitesimal ice conc Line 59  C-    to preclude infinitesimal ice conc
59  # undef ALLOW_PRECLUDE_INFINITESIMAL_AREA  # undef ALLOW_PRECLUDE_INFINITESIMAL_AREA
60  #endif  #endif
61    
62  C--   By default the freezing point of water is set to the value of  C--   The freezing point of water is a simple linear dependence to salinity.
63  C     the parameter SEAICE_freeze (=-1.96 by default). To use a  C     The flag below is now obsolete, but kept to ease the transition
64  C     simple linear dependence of the freezing point on salinity,  C     from the old constant freezing point default (see seaice_check.F).
65  C     set the following flag (pressure is assumed to have no effect,  #define SEAICE_VARIABLE_FREEZING_POINT
 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  #undef SEAICE_VARIABLE_SALINITY  #undef SEAICE_VARIABLE_SALINITY
# Line 117  C--   When set limit the Ice-Loading to Line 115  C--   When set limit the Ice-Loading to
115  C--   When set use SEAICE_clipVelocties = .true., to clip U/VICE at 40cm/s,  C--   When set use SEAICE_clipVelocties = .true., to clip U/VICE at 40cm/s,
116  C--   not recommended  C--   not recommended
117  #undef SEAICE_ALLOW_CLIPVELS  #undef SEAICE_ALLOW_CLIPVELS
118    C--   When set cap the sublimation latent heat flux in solve4temp
119    C     according to the available amount of ice+snow. Otherwise this
120    C     term is treated like all of the others -- residuals heat and
121    C     fw stocks are passed to the ocean at the end of seaice_growth
122    C     in a conservative manner. SEAICE_CAP_SUBLIM is not needed
123    C     as of now, but kept just in case.
124    #undef SEAICE_CAP_SUBLIM
125    
126  C     enable free drift code  C     enable free drift code
127  #undef SEAICE_ALLOW_FREEDRIFT  #undef SEAICE_ALLOW_FREEDRIFT
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