/[MITgcm]/MITgcm/verification/lab_sea/code_ad/SEAICE_OPTIONS.h
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revision 1.3 by heimbach, Wed Sep 26 04:38:20 2007 UTC revision 1.7 by heimbach, Fri Nov 27 15:03:15 2009 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 23  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  
 cph#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
# Line 48  C     Note the pickup_seaice.* generated Line 38  C     Note the pickup_seaice.* generated
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  #define SEAICE_MULTICATEGORY
42    
43  C--   By default cdm wind stress under sea-ice is set to the  C--   By default cdm wind stress under sea-ice is set to the
44  C     same value as it would be if there was no sea-ice.  C     same value as it would be if there was no sea-ice.
# Line 62  C     following options are available. Line 52  C     following options are available.
52  #undef SEAICE_ORIGINAL_BAD_ICE_STRESS  #undef SEAICE_ORIGINAL_BAD_ICE_STRESS
53  #undef SEAICE_TEST_ICE_STRESS_1  #undef SEAICE_TEST_ICE_STRESS_1
54    
55  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
56  C     the parameter SEAICE_freeze (=-1.96 by default). To use a  C     the parameter SEAICE_freeze (=-1.96 by default). To use a
57  C     simple linear dependence of the freezing point on salinity,  C     simple linear dependence of the freezing point on salinity,
58  C     set the following flag (pressure is assumed to have no effect,  C     set the following flag (pressure is assumed to have no effect,
59  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
60  C     option defined the parameter SEAICE_freeze has no effect.  C     option defined the parameter SEAICE_freeze has no effect.
61  #undef SEAICE_VARIABLE_FREEZING_POINT  #undef SEAICE_VARIABLE_FREEZING_POINT
62    
63  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
64  C     historical reasons). Define the following flag to use a new  C     historical reasons). Define the following flag to use a new
65  C     (not thoroughly) test version on a C-grid  C     (not thoroughly) test version on a C-grid
66  #define SEAICE_CGRID  #define SEAICE_CGRID
# Line 78  C     (not thoroughly) test version on a Line 68  C     (not thoroughly) test version on a
68  C--   Only for the C-grid version it is possible to enable EVP code by  C--   Only for the C-grid version it is possible to enable EVP code by
69  C     defining the following flag  C     defining the following flag
70  #ifdef SEAICE_CGRID  #ifdef SEAICE_CGRID
71  #undef SEAICE_ALLOW_EVP  #define SEAICE_ALLOW_EVP
72  #endif /* SEAICE_CGRID */  #endif /* SEAICE_CGRID */
73    
74  C--   Seaice flooding  C--   Seaice flooding
# Line 87  C--   Seaice flooding Line 77  C--   Seaice flooding
77  C--   By default sea ice is fresh.  Set following flag for salty ice.  C--   By default sea ice is fresh.  Set following flag for salty ice.
78  #define SEAICE_SALINITY  #define SEAICE_SALINITY
79    
80    c--   Enable modified sea-ice thermodynamic by Ian Fenty
81    c--   Should improve adjoint, but doesnt work so far.
82    #undef SEAICE_ALLOW_TD_IF
83    
84  #endif /* SEAICE_OPTIONS_H */  #endif /* SEAICE_OPTIONS_H */
85    
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