/[MITgcm]/MITgcm/verification/lab_sea/code/SEAICE_OPTIONS.h
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revision 1.13 by mlosch, Mon Oct 26 08:40:06 2009 UTC revision 1.14 by dimitri, Fri Sep 3 23:33:49 2010 UTC
# 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    
 C--   By default for B-grid dynamics solver wind stress under sea-ice is  
 C     set to the same value as it would be if there was no sea-ice.  
 C     Define following CPP flag for B-grid ice-ocean stress coupling.  
 #undef SEAICE_TEST_ICE_STRESS_1  
   
 C--   By default for B-grid dynamics solver surface tilt is obtained  
 C     indirectly via geostrophic velocities.  Define following CPP  
 C     in order to ues ETAN instead.  
 #undef EXPLICIT_SSH_SLOPE  
   
43  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
44  C     the parameter SEAICE_freeze (=-1.96 by default). To use a  C     the parameter SEAICE_freeze (=-1.96 by default). To use a
45  C     simple linear dependence of the freezing point on salinity,  C     simple linear dependence of the freezing point on salinity,
# Line 65  C--   By default sea ice is fresh.  Set Line 55  C--   By default sea ice is fresh.  Set
55  #define SEAICE_SALINITY  #define SEAICE_SALINITY
56    
57  C--   Track sea ice age.  C--   Track sea ice age.
58    C     By default sea ice age is associated with ice area.
59    C     Define SEAICE_AGE_VOL to associate age with volume.
60  #define SEAICE_AGE  #define SEAICE_AGE
61    #ifdef SEAICE_AGE
62    # define SEAICE_AGE_VOL
63    #endif
64    
65  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
66  C     historical reasons). Define the following flag to use a new  C     historical reasons). Define the following flag to use a new
# Line 75  C     (not thoroughly) test version on a Line 70  C     (not thoroughly) test version on a
70  C--   Only for the C-grid version it is possible to  C--   Only for the C-grid version it is possible to
71  #ifdef SEAICE_CGRID  #ifdef SEAICE_CGRID
72  C     enable EVP code by defining the following flag  C     enable EVP code by defining the following flag
73  #define SEAICE_ALLOW_EVP  # define SEAICE_ALLOW_EVP
74  #ifdef SEAICE_ALLOW_EVP  # ifdef SEAICE_ALLOW_EVP
75  C--   When set use SEAICE_zetaMin and SEAICE_evpDampC to limit  C--   When set use SEAICE_zetaMin and SEAICE_evpDampC to limit
76  C--   viscosities from below and above in seaice_evp  C--   viscosities from below and above in seaice_evp
77  C--   not necessary, and not recommended, but used here for backward  C--   not necessary, and not recommended, but used here for backward
78  C--   compatibility  C--   compatibility
79  #define SEAICE_ALLOW_CLIPZETA  #  define SEAICE_ALLOW_CLIPZETA
80  #endif /* SEAICE_ALLOW_EVP */  # endif /* SEAICE_ALLOW_EVP */
81  C     allow the truncated ellipse rheology (runtime flag SEAICEuseTEM)  C     allow the truncated ellipse rheology (runtime flag SEAICEuseTEM)
82  #undef SEAICE_ALLOW_TEM  # undef SEAICE_ALLOW_TEM
83    #else /* not SEAICE_CGRID, but old B-grid */
84    C--   By default for B-grid dynamics solver wind stress under sea-ice is
85    C     set to the same value as it would be if there was no sea-ice.
86    C     Define following CPP flag for B-grid ice-ocean stress coupling.
87    # define SEAICE_BICE_STRESS
88    
89    C--   By default for B-grid dynamics solver surface tilt is obtained
90    C     indirectly via geostrophic velocities. Define following CPP
91    C     in order to use ETAN instead.
92    # define EXPLICIT_SSH_SLOPE
93  #endif /* SEAICE_CGRID */  #endif /* SEAICE_CGRID */
94    
95  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
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