/[MITgcm]/MITgcm_contrib/high_res_cube/code-mods/SEAICE_OPTIONS.h
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revision 1.1 by dimitri, Mon Nov 24 05:20:59 2003 UTC revision 1.16 by dimitri, Fri Jan 11 20:23:44 2008 UTC
# Line 11  C     \================================= Line 11  C     \=================================
11  #ifndef SEAICE_OPTIONS_H  #ifndef SEAICE_OPTIONS_H
12  #define SEAICE_OPTIONS_H  #define SEAICE_OPTIONS_H
13  #include "PACKAGES_CONFIG.h"  #include "PACKAGES_CONFIG.h"
 #ifdef ALLOW_SEAICE  
   
14  #include "CPP_OPTIONS.h"  #include "CPP_OPTIONS.h"
15    
16  C--   Write "text-plots" of certain fields in STDOUT for debugging.  C--   Write "text-plots" of certain fields in STDOUT for debugging.
# Line 25  C     Sea-ice dynamics can also be turne Line 23  C     Sea-ice dynamics can also be turne
23  C     using variable SEAICEuseDYNAMICS.  C     using variable SEAICEuseDYNAMICS.
24  #define SEAICE_ALLOW_DYNAMICS  #define SEAICE_ALLOW_DYNAMICS
25    
 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 */  
   
26  C--   By default, the sea-ice package uses its own integrated bulk  C--   By default, the sea-ice package uses its own integrated bulk
27  C     formulae to compute fluxes (fu, fv, EmPmR, Qnet, and Qsw) over  C     formulae to compute fluxes (fu, fv, EmPmR, Qnet, and Qsw) over
28  C     open-ocean.  When this flag is set, these variables are computed  C     open-ocean.  When this flag is set, these variables are computed
29  C     in a separate external package, for example, pkg/exf, and then  C     in a separate external package, for example, pkg/exf, and then
30  C     modified for sea-ice effects by pkg/seaice.  C     modified for sea-ice effects by pkg/seaice.
31  #undef SEAICE_EXTERNAL_FLUXES  #define SEAICE_EXTERNAL_FLUXES
32    
33  C--   By default, the sea-ice package uses 2-category thermodynamics.  C--   By default, the sea-ice package uses 2-category thermodynamics.
34  C     When this flag is set, an 8-category calculation of ice  C     When this flag is set, an 8-category calculation of ice
35  C     thermodynamics is carried out in groatb.F  C     thermodynamics is carried out in groatb.F
36  C     !!! Note the pickup_seaice.* generated by this option differ !!!  C     Note the pickup_seaice.* generated by this option differ
37  C     !!! from those generated with the default 2-category model.  !!!  C     from those generated with the default 2-category model.
38  C     !!! Therefore it is not possible to switch between the two   !!!  C     Therefore it is not possible to switch between the two
39  C     !!! in the middle of an integration.                         !!!  C     in the middle of an integration.
40  #undef SEAICE_MULTILEVEL  #define SEAICE_MULTICATEGORY
41    
42    C--   By default for B-grid dynamics solver wind stress under sea-ice is
43    C     set to the same value as it would be if there was no sea-ice.
44    C     Define following CPP flag for B-grid ice-ocean stress coupling.
45    #undef SEAICE_TEST_ICE_STRESS_1
46    
47    C--   By default for B-grid dynamics solver surface tilt is obtained
48    C     indirectly via geostrophic velocities.  Define following CPP
49    C     in order to ues ETAN instead.
50    #undef EXPLICIT_SSH_SLOPE
51    
52    C--   By default the freezing point of water is set to the value of
53    C     the parameter SEAICE_freeze (=-1.96 by default). To use a
54    C     simple linear dependence of the freezing point on salinity,
55    C     set the following flag (pressure is assumed to have no effect,
56    C     which is a good assumption for the top 20 meters). With this
57    C     option defined the parameter SEAICE_freeze has no effect.
58    #define SEAICE_VARIABLE_FREEZING_POINT
59    
60    C--   Allow SEAICEuseFlooding, which converts snow to ice if submerged.
61    #define ALLOW_SEAICE_FLOODING
62    
63    C--   By default sea ice is fresh.  Set following flag for salty ice.
64    #define SEAICE_SALINITY
65    
66    C--   By default the seaice model is discretized on a B-Grid (for
67    C     historical reasons). Define the following flag to use a new
68    C     (not thoroughly) test version on a C-grid
69    #define SEAICE_CGRID
70    
71    C--   Only for the C-grid version it is possible to enable EVP code by
72    C     defining the following flag
73    #ifdef SEAICE_CGRID
74    #undef SEAICE_ALLOW_EVP
75    #endif /* SEAICE_CGRID */
76    
77    C--   When set use MAX_HEFF to cap sea ice thickness in seaice_growth
78    #define SEAICE_CAP_HEFF
79    
 #endif /* ALLOW_SEAICE */  
80  #endif /* SEAICE_OPTIONS_H */  #endif /* SEAICE_OPTIONS_H */
81    
82    CEH3 ;;; Local Variables: ***
83    CEH3 ;;; mode:fortran ***
84    CEH3 ;;; End: ***
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