/[MITgcm]/MITgcm_contrib/high_res_cube/code-mods/SEAICE_OPTIONS.h
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revision 1.8 by dimitri, Wed Feb 7 01:30:48 2007 UTC revision 1.15 by dimitri, Sun Dec 23 06:04:43 2007 UTC
# Line 16  C     \================================= Line 16  C     \=================================
16  C--   Write "text-plots" of certain fields in STDOUT for debugging.  C--   Write "text-plots" of certain fields in STDOUT for debugging.
17  #undef SEAICE_DEBUG  #undef SEAICE_DEBUG
18    
19    C--   This flag is meant for options that make more sense than the
20    C     original options but that break the verification experiments.
21    #define SEAICE_BREAKS_VERIFICATION
22    
23  C--   Allow sea-ice dynamic code.  C--   Allow sea-ice dynamic code.
24  C     This option is provided to allow use of TAMC  C     This option is provided to allow use of TAMC
25  C     on the thermodynamics component of the code only.  C     on the thermodynamics component of the code only.
# Line 23  C     Sea-ice dynamics can also be turne Line 27  C     Sea-ice dynamics can also be turne
27  C     using variable SEAICEuseDYNAMICS.  C     using variable SEAICEuseDYNAMICS.
28  #define SEAICE_ALLOW_DYNAMICS  #define SEAICE_ALLOW_DYNAMICS
29    
 C--   By default, pkg/seaice defines forcing variable internally, in  
 C     SEAICE_FFIELDS.h, and reads them in from files.  When CPP option  
 C     SEAICE_EXTERNAL_FORCING is defined, the above forcing variables  
 C     are defined and provided by an external package.  At present this  
 C     option is hardwired for pkg/exf and the variables are passed using  
 C     include file exf_fields.h.  
 #define SEAICE_EXTERNAL_FORCING  
 #ifdef SEAICE_EXTERNAL_FORCING  
 #include "EXF_OPTIONS.h"  
 #endif /* SEAICE_EXTERNAL_FORCING */  
   
30  C--   By default, the sea-ice package uses its own integrated bulk  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  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  C     open-ocean.  When this flag is set, these variables are computed
# Line 48  C     Note the pickup_seaice.* generated Line 41  C     Note the pickup_seaice.* generated
41  C     from those generated with the default 2-category model.  C     from those generated with the default 2-category model.
42  C     Therefore it is not possible to switch between the two  C     Therefore it is not possible to switch between the two
43  C     in the middle of an integration.  C     in the middle of an integration.
44  #undef SEAICE_MULTICATEGORY  #define SEAICE_MULTICATEGORY
45    
46  C--   By default cdm wind stress under sea-ice is set to the  C--   By default for B-grid dynamics solver wind stress under sea-ice is
47  C     same value as it would be if there was no sea-ice.  C     set to the same value as it would be if there was no sea-ice.
48  C     This is a placeholder until a more physically-sensible  C     Define following CPP flag for B-grid ice-ocean stress coupling.
 C     stable solution is developed.  Apparently ocean stress  
 C     that is based on sea-ice velocity can cause trouble in  
 C     Arctic Ocean configurations.  This temporary solution  
 C     also corresponds to that adopted by CCSM-2.  For the  
 C     adventurous user who requires ice-modified stress,  
 C     following options are available.  
 #undef SEAICE_ORIGINAL_BAD_ICE_STRESS  
49  #undef SEAICE_TEST_ICE_STRESS_1  #undef SEAICE_TEST_ICE_STRESS_1
50    
51    C--   By default for B-grid dynamics solver surface tilt is obtained
52    C     indirectly via geostrophic velocities.  Define following CPP
53    C     in order to ues ETAN instead.
54    #undef EXPLICIT_SSH_SLOPE
55    
56  C--   By default the freezing point of water is set to the value of  C--   By default the freezing point of water is set to the value of
57  C     the parameter SEAICE_freeze (=-1.96 by default). To use a  C     the parameter SEAICE_freeze (=-1.96 by default). To use a
58  C     simple linear dependence of the freezing point on salinity,  C     simple linear dependence of the freezing point on salinity,
59  C     set the following flag (pressure is assumed to have no effect,  C     set the following flag (pressure is assumed to have no effect,
60  C     which is a good assumption for the top 20 meters). With this  C     which is a good assumption for the top 20 meters). With this
61  C     option defined the parameter SEAICE_freeze has no effect.  C     option defined the parameter SEAICE_freeze has no effect.
62  #undef SEAICE_VARIABLE_FREEZING_POINT  #define SEAICE_VARIABLE_FREEZING_POINT
63    
64  C--   Allow SEAICEuseFlooding, which converts snow to ice if submerged.  C--   Allow SEAICEuseFlooding, which converts snow to ice if submerged.
65  #define ALLOW_SEAICE_FLOODING  #define ALLOW_SEAICE_FLOODING
66    
67    C--   By default sea ice is fresh.  Set following flag for salty ice.
68    #define SEAICE_SALINITY
69    
70  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
71  C     historical reasons). Define the following flag to use a new  C     historical reasons). Define the following flag to use a new
72  C     (not thoroughly) test version on a C-grid  C     (not thoroughly) test version on a C-grid
# Line 84  C     defining the following flag Line 78  C     defining the following flag
78  #undef SEAICE_ALLOW_EVP  #undef SEAICE_ALLOW_EVP
79  #endif /* SEAICE_CGRID */  #endif /* SEAICE_CGRID */
80    
81    C--   When set use MAX_HEFF to cap sea ice thickness in seaice_growth
82    #define SEAICE_CAP_HEFF
83    
84  #endif /* SEAICE_OPTIONS_H */  #endif /* SEAICE_OPTIONS_H */
85    
86  CEH3 ;;; Local Variables: ***  CEH3 ;;; Local Variables: ***
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