/[MITgcm]/MITgcm/verification/lab_sea/code/SEAICE_OPTIONS.h
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revision 1.14 by dimitri, Fri Sep 3 23:33:49 2010 UTC revision 1.18 by heimbach, Sat Mar 5 18:09:22 2011 UTC
# Line 1  Line 1 
1  C $Header$  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
13  #define SEAICE_OPTIONS_H  #define SEAICE_OPTIONS_H
# Line 40  C     Therefore it is not possible to sw Line 40  C     Therefore it is not possible to sw
40  C     in the middle of an integration.  C     in the middle of an integration.
41  #undef SEAICE_MULTICATEGORY  #undef SEAICE_MULTICATEGORY
42    
43  C--   By default the freezing point of water is set to the value of  C--   Use the Old version of seaice_growth (close to cvs version 1.70)
44    C     otherwise, use the merged version (with some of Ian Fenty s code)
45    #define SEAICE_GROWTH_LEGACY
46    
47    C--   options only available in the merged version (from Ian Fenty s code)
48    #ifndef SEAICE_GROWTH_LEGACY
49    C-    to switch on/off open-water freezing contribution to thickness tendency:
50    #define SEAICE_DO_OPEN_WATER_GROWTH
51    C-    to switch on/off ocean heat contribution to seaice cover reduction:
52    #define SEAICE_OCN_MELT_ACT_ON_AREA
53    #endif
54    
55    C--   Use the Old version of seaice_solve4temp (formerly seaice_budget_ice)
56    C     otherwise, use Ian Fenty s version
57    #define SEAICE_SOLVE4TEMP_LEGACY
58    
59    C--   By default the freezing point of water is set to the value of
60  C     the parameter SEAICE_freeze (=-1.96 by default). To use a  C     the parameter SEAICE_freeze (=-1.96 by default). To use a
61  C     simple linear dependence of the freezing point on salinity,  C     simple linear dependence of the freezing point on salinity,
62  C     set the following flag (pressure is assumed to have no effect,  C     set the following flag (pressure is assumed to have no effect,
63  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
64  C     option defined the parameter SEAICE_freeze has no effect.  C     option defined the parameter SEAICE_freeze has no effect.
65  #undef SEAICE_VARIABLE_FREEZING_POINT  #define SEAICE_VARIABLE_FREEZING_POINT
66    
67  C--   Allow SEAICEuseFlooding, which converts snow to ice if submerged.  C--   Allow SEAICEuseFlooding, which converts snow to ice if submerged.
68  #define ALLOW_SEAICE_FLOODING  #define ALLOW_SEAICE_FLOODING
# Line 55  C--   By default sea ice is fresh.  Set Line 71  C--   By default sea ice is fresh.  Set
71  #define SEAICE_SALINITY  #define SEAICE_SALINITY
72    
73  C--   Track sea ice age.  C--   Track sea ice age.
 C     By default sea ice age is associated with ice area.  
 C     Define SEAICE_AGE_VOL to associate age with volume.  
74  #define SEAICE_AGE  #define SEAICE_AGE
 #ifdef SEAICE_AGE  
 # define SEAICE_AGE_VOL  
 #endif  
75    
76  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
77  C     historical reasons). Define the following flag to use a new  C     historical reasons). Define the following flag to use a new
78  C     (not thoroughly) test version on a C-grid  C     (not thoroughly) test version on a C-grid
79  #define SEAICE_CGRID  #define SEAICE_CGRID
80    
81  C--   Only for the C-grid version it is possible to  C--   Only for the C-grid version it is possible to
82  #ifdef SEAICE_CGRID  #ifdef SEAICE_CGRID
83  C     enable EVP code by defining the following flag  C     enable EVP code by defining the following flag
84  # define SEAICE_ALLOW_EVP  # define SEAICE_ALLOW_EVP
85  # ifdef SEAICE_ALLOW_EVP  # ifdef SEAICE_ALLOW_EVP
86  C--   When set use SEAICE_zetaMin and SEAICE_evpDampC to limit  C--   When set use SEAICE_zetaMin and SEAICE_evpDampC to limit
87  C--   viscosities from below and above in seaice_evp  C--   viscosities from below and above in seaice_evp
88  C--   not necessary, and not recommended, but used here for backward  C--   not necessary, and not recommended
 C--   compatibility  
89  #  define SEAICE_ALLOW_CLIPZETA  #  define SEAICE_ALLOW_CLIPZETA
90  # endif /* SEAICE_ALLOW_EVP */  # endif /* SEAICE_ALLOW_EVP */
91  C     allow the truncated ellipse rheology (runtime flag SEAICEuseTEM)  C     allow the truncated ellipse rheology (runtime flag SEAICEuseTEM)
# Line 94  C     in order to use ETAN instead. Line 104  C     in order to use ETAN instead.
104    
105  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
106  #undef SEAICE_CAP_HEFF  #undef SEAICE_CAP_HEFF
107    C--   When set limit the Ice-Loading to mass of 1/5 of Surface ocean grid-box
108    #undef SEAICE_CAP_ICELOAD
109  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,
110  C--   not recommended, here enabled for backward compatibility  C--   not recommended
111  #define SEAICE_ALLOW_CLIPVELS  #define SEAICE_ALLOW_CLIPVELS
112    
113    C     enable free drift code
114    #define SEAICE_ALLOW_FREEDRIFT
115    
116  #endif /* SEAICE_OPTIONS_H */  #endif /* SEAICE_OPTIONS_H */
117    
118  CEH3 ;;; Local Variables: ***  CEH3 ;;; Local Variables: ***
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