/[MITgcm]/MITgcm/verification/lab_sea/code/SEAICE_OPTIONS.h
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revision 1.6 by dimitri, Mon Nov 24 04:39:48 2003 UTC revision 1.11 by dimitri, Wed Dec 17 03:33:30 2008 UTC
# Line 1  Line 1 
1  C $Header$  C $Header$
2    C $Name$
3    
4  C     /==========================================================\  C     /==========================================================\
5  C     | SEAICE_OPTIONS.h                                         |  C     | SEAICE_OPTIONS.h                                         |
# Line 11  C     \================================= Line 12  C     \=================================
12  #ifndef SEAICE_OPTIONS_H  #ifndef SEAICE_OPTIONS_H
13  #define SEAICE_OPTIONS_H  #define SEAICE_OPTIONS_H
14  #include "PACKAGES_CONFIG.h"  #include "PACKAGES_CONFIG.h"
 #ifdef ALLOW_SEAICE  
   
15  #include "CPP_OPTIONS.h"  #include "CPP_OPTIONS.h"
16    
17  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 24  C     Sea-ice dynamics can also be turne
24  C     using variable SEAICEuseDYNAMICS.  C     using variable SEAICEuseDYNAMICS.
25  #define SEAICE_ALLOW_DYNAMICS  #define SEAICE_ALLOW_DYNAMICS
26    
 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 */  
   
27  C--   By default, the sea-ice package uses its own integrated bulk  C--   By default, the sea-ice package uses its own integrated bulk
28  C     formulae to compute fluxes (fu, fv, EmPmR, Qnet, and Qsw) over  C     formulae to compute fluxes (fu, fv, EmPmR, Qnet, and Qsw) over
29  C     open-ocean.  When this flag is set, these variables are computed  C     open-ocean.  When this flag is set, these variables are computed
30  C     in a separate external package, for example, pkg/exf, and then  C     in a separate external package, for example, pkg/exf, and then
31  C     modified for sea-ice effects by pkg/seaice.  C     modified for sea-ice effects by pkg/seaice.
32  #undef SEAICE_EXTERNAL_FLUXES  #define SEAICE_EXTERNAL_FLUXES
33    
34  C--   By default, the sea-ice package uses 2-category thermodynamics.  C--   By default, the sea-ice package uses 2-category thermodynamics.
35  C     When this flag is set, an 8-category calculation of ice  C     When this flag is set, an 8-category calculation of ice
36  C     thermodynamics is carried out in groatb.F  C     thermodynamics is carried out in groatb.F
37  C     !!! Note the pickup_seaice.* generated by this option differ !!!  C     Note the pickup_seaice.* generated by this option differ
38  C     !!! from those generated with the default 2-category model.  !!!  C     from those generated with the default 2-category model.
39  C     !!! Therefore it is not possible to switch between the two   !!!  C     Therefore it is not possible to switch between the two
40  C     !!! in the middle of an integration.                         !!!  C     in the middle of an integration.
41  #undef SEAICE_MULTILEVEL  #undef SEAICE_MULTICATEGORY
42    
43    C--   By default for B-grid dynamics solver wind stress under sea-ice is
44    C     set to the same value as it would be if there was no sea-ice.
45    C     Define following CPP flag for B-grid ice-ocean stress coupling.
46    #undef SEAICE_TEST_ICE_STRESS_1
47    
48    C--   By default for B-grid dynamics solver surface tilt is obtained
49    C     indirectly via geostrophic velocities.  Define following CPP
50    C     in order to ues ETAN instead.
51    #undef EXPLICIT_SSH_SLOPE
52    
53    C--   By default the freezing point of water is set to the value of
54    C     the parameter SEAICE_freeze (=-1.96 by default). To use a
55    C     simple linear dependence of the freezing point on salinity,
56    C     set the following flag (pressure is assumed to have no effect,
57    C     which is a good assumption for the top 20 meters). With this
58    C     option defined the parameter SEAICE_freeze has no effect.
59    #undef SEAICE_VARIABLE_FREEZING_POINT
60    
61    C--   Allow SEAICEuseFlooding, which converts snow to ice if submerged.
62    #define ALLOW_SEAICE_FLOODING
63    
64    C--   By default sea ice is fresh.  Set following flag for salty ice.
65    #define SEAICE_SALINITY
66    
67    C--   Track sea ice age.
68    #define SEAICE_AGE
69    
70    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
72    C     (not thoroughly) test version on a C-grid
73    #define SEAICE_CGRID
74    
75    C--   Only for the C-grid version it is possible to
76    #ifdef SEAICE_CGRID
77    C     enable EVP code by defining the following flag
78    #define SEAICE_ALLOW_EVP
79    C     allow the truncated ellipse rheology (runtime flag SEAICEuseTEM)
80    #undef SEAICE_ALLOW_TEM
81    #endif /* SEAICE_CGRID */
82    
83    C--   When set use MAX_HEFF to cap sea ice thickness in seaice_growth
84    #undef SEAICE_CAP_HEFF
85    
 #endif /* ALLOW_SEAICE */  
86  #endif /* SEAICE_OPTIONS_H */  #endif /* SEAICE_OPTIONS_H */
87    
88    CEH3 ;;; Local Variables: ***
89    CEH3 ;;; mode:fortran ***
90    CEH3 ;;; End: ***
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