/[MITgcm]/MITgcm/verification/global_ocean.cs32x15/code_ad/SEAICE_OPTIONS.h
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revision 1.4 by jmc, Fri Mar 4 19:14:35 2011 UTC revision 1.14 by gforget, Thu Mar 8 01:19:20 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  #undef SEAICE_GROWTH_LEGACY  #undef 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  #ifndef SEAICE_GROWTH_LEGACY  C     this flag is needed for backward compatibility
52  C-    to switch on/off open-water freezing contribution to thickness tendency:  #undef SEAICE_DISABLE_SUBLIM
 # define SEAICE_DO_OPEN_WATER_GROWTH  
 C-    ifdef SEAICE_DO_OPEN_WATER_GROWTH then define SEAICE_DO_OPEN_WATER_MELT  
 C     to also allow open-water air-sea heat fluxes melt ice  
 #undef SEAICE_DO_OPEN_WATER_MELT  
 C-    to switch on/off ocean heat contribution to seaice cover reduction:  
 #define SEAICE_OCN_MELT_ACT_ON_AREA  
 #endif  
   
 C-    to use the MCPhee formula in computing ocean/ice fluxes  
 #undef MCPHEE_OCEAN_ICE_HEAT_FLUX  
53    
54  C--   Use the Old version of seaice_solve4temp (formerly seaice_budget_ice)  C--   Suspected missing term in coupled ocn-ice heat budget (to be further tested)
55  C     otherwise, use Ian Fenty s version  #undef SEAICE_DISABLE_HEATCONSFIX
 #undef SEAICE_SOLVE4TEMP_LEGACY  
   
 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  
56    
57  C--   Allow SEAICEuseFlooding, which converts snow to ice if submerged.  C--   options only available in the merged version
58  #define ALLOW_SEAICE_FLOODING  #ifndef SEAICE_GROWTH_LEGACY
59    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    #endif
64    
65  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.
66  #undef SEAICE_SALINITY  #undef SEAICE_VARIABLE_SALINITY
67    
68  C--   Track sea ice age.  C--   Tracers of ice and/or ice cover.
69  C     By default sea ice age is associated with ice area.  #undef ALLOW_SITRACER
70  C     Define SEAICE_AGE_VOL to associate age with volume.  #ifdef ALLOW_SITRACER
71  #undef SEAICE_AGE  C--   To try avoid 'spontaneous generation' of tracer maxima by advdiff.
72  #ifdef SEAICE_AGE  # define ALLOW_SITRACER_ADVCAP
 # undef SEAICE_AGE_VOL  
73  #endif  #endif
74    
75  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
# Line 111  C--   By default for B-grid dynamics sol Line 99  C--   By default for B-grid dynamics sol
99  C     indirectly via geostrophic velocities. Define following CPP  C     indirectly via geostrophic velocities. Define following CPP
100  C     in order to use ETAN instead.  C     in order to use ETAN instead.
101  # define EXPLICIT_SSH_SLOPE  # define EXPLICIT_SSH_SLOPE
102    C--   Defining this flag turns on a FV-discretization of the B-grid LSOR
103    C     solver. It is smoother and includes all metric terms, similar to the
104    C     C-grid solver. It is here for completeness, but its usefulness is
105    C     unclear.
106    # undef SEAICE_LSRBNEW
107  #endif /* SEAICE_CGRID */  #endif /* SEAICE_CGRID */
108    
109  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 120  C--   When set limit the Ice-Loading to Line 113  C--   When set limit the Ice-Loading to
113  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,
114  C--   not recommended  C--   not recommended
115  #define SEAICE_ALLOW_CLIPVELS  #define SEAICE_ALLOW_CLIPVELS
116    C--   When set cap the sublimation latent heat flux in solve4temp
117    C     according to the available amount of ice+snow. Otherwise this
118    C     term is treated like all of the others -- residuals heat and
119    C     fw stocks are passed to the ocean at the end of seaice_growth
120    C     in a conservative manner. SEAICE_CAP_SUBLIM is not needed
121    C     as of now, but kept just in case.
122    #undef SEAICE_CAP_SUBLIM
123    
124  C     enable free drift code  C     enable free drift code
125  #undef SEAICE_ALLOW_FREEDRIFT  #define SEAICE_ALLOW_FREEDRIFT
126    
127    #endif /* ALLOW_SEAICE */
128  #endif /* SEAICE_OPTIONS_H */  #endif /* SEAICE_OPTIONS_H */
129    
130  CEH3 ;;; Local Variables: ***  CEH3 ;;; Local Variables: ***
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