/[MITgcm]/MITgcm_contrib/MPMice/beaufort/code/SEAICE_OPTIONS.h
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revision 1.2 by dimitri, Thu May 19 06:35:06 2011 UTC revision 1.4 by dimitri, Wed Mar 14 05:32:10 2012 UTC
# Line 1  Line 1 
1  C $Header$  C $Header$
2    
3  C     /==========================================================\  C     *==========================================================*
4  C     | SEAICE_OPTIONS.h                                         |  C     | SEAICE_OPTIONS.h
5  C     | o CPP options file for sea ice package.                  |  C     | o CPP options file for sea ice package.
6  C     |==========================================================|  C     *==========================================================*
7  C     | Use this file for selecting options within the sea ice   |  C     | Use this file for selecting options within the sea ice
8  C     | package.                                                 |  C     | package.
9  C     \==========================================================/  C     *==========================================================*
10    
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"
14  #include "CPP_OPTIONS.h"  #include "CPP_OPTIONS.h"
15    
16    #ifdef ALLOW_SEAICE
17    C     Package-specific Options & Macros go here
18    
19  C--   Write "text-plots" of certain fields in STDOUT for debugging.  C--   Write "text-plots" of certain fields in STDOUT for debugging.
20  #undef SEAICE_DEBUG  #undef SEAICE_DEBUG
21    
# Line 39  C     Therefore it is not possible to sw Line 42  C     Therefore it is not possible to sw
42  C     in the middle of an integration.  C     in the middle of an integration.
43  #define SEAICE_MULTICATEGORY  #define SEAICE_MULTICATEGORY
44    
45  C--   By default for B-grid dynamics solver wind stress under sea-ice is  C--   Use the Old version of seaice_growth (close to cvs version 1.70)
46  C     set to the same value as it would be if there was no sea-ice.  C     otherwise, use the merged version (with some of Ian Fenty s code)
47  C     Define following CPP flag for B-grid ice-ocean stress coupling.  #undef SEAICE_GROWTH_LEGACY
48  #undef SEAICE_TEST_ICE_STRESS_1  
49    C--   Since the missing sublimation term is now included
50  C--   By default for B-grid dynamics solver surface tilt is obtained  C     this flag is needed for backward compatibility
51  C     indirectly via geostrophic velocities.  Define following CPP  #undef SEAICE_DISABLE_SUBLIM
52  C     in order to ues ETAN instead.  
53  #undef EXPLICIT_SSH_SLOPE  C--   Suspected missing term in coupled ocn-ice heat budget (to be further
54    C     gtested)
55  C--   By default the freezing point of water is set to the value of  #undef SEAICE_DISABLE_HEATCONSFIX
56  C     the parameter SEAICE_freeze (=-1.96 by default). To use a  
57  C     simple linear dependence of the freezing point on salinity,  C--   The freezing point of water is a simple linear dependence to salinity.
58  C     set the following flag (pressure is assumed to have no effect,  C     The flag below is now obsolete, but kept to ease the transition
59  C     which is a good assumption for the top 20 meters). With this  C     from the old constant freezing point default (see seaice_check.F).
 C     option defined the parameter SEAICE_freeze has no effect.  
60  #define SEAICE_VARIABLE_FREEZING_POINT  #define SEAICE_VARIABLE_FREEZING_POINT
61    
62  C--   Allow SEAICEuseFlooding, which converts snow to ice if submerged.  C--   The functionality of this flag has been moved to SItracer making
63  #define ALLOW_SEAICE_FLOODING  C     this flag obsolete.
   
 C--   By default sea ice is fresh.  Set following flag for salty ice.  
64  #define SEAICE_VARIABLE_SALINITY  #define SEAICE_VARIABLE_SALINITY
65    
66  C--   By default the seaice model is discretized on a B-Grid (for  C--   Tracers of ice and/or ice cover.
67    #define ALLOW_SITRACER
68    #ifdef ALLOW_SITRACER
69    C--   To try avoid 'spontaneous generation' of tracer maxima by advdiff.
70    # define ALLOW_SITRACER_ADVCAP
71    #endif
72    
73    C--   By default the seaice model is discretized on a B-Grid (for
74  C     historical reasons). Define the following flag to use a new  C     historical reasons). Define the following flag to use a new
75  C     (not thoroughly) test version on a C-grid  C     (not thoroughly) test version on a C-grid
76  #define SEAICE_CGRID  #define SEAICE_CGRID
77    
78  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
 C     defining the following flag  
79  #ifdef SEAICE_CGRID  #ifdef SEAICE_CGRID
80  #undef SEAICE_ALLOW_EVP  C     enable EVP code by defining the following flag
81    # define SEAICE_ALLOW_EVP
82    # ifdef SEAICE_ALLOW_EVP
83    C--   When set use SEAICE_zetaMin and SEAICE_evpDampC to limit
84    C--   viscosities from below and above in seaice_evp
85    C--   not necessary, and not recommended
86    #  undef SEAICE_ALLOW_CLIPZETA
87    # endif /* SEAICE_ALLOW_EVP */
88    C     allow the truncated ellipse rheology (runtime flag SEAICEuseTEM)
89    # undef SEAICE_ALLOW_TEM
90    #else /* not SEAICE_CGRID, but old B-grid */
91    C--   By default for B-grid dynamics solver wind stress under sea-ice is
92    C     set to the same value as it would be if there was no sea-ice.
93    C     Define following CPP flag for B-grid ice-ocean stress coupling.
94    # define SEAICE_BICE_STRESS
95    
96    C--   By default for B-grid dynamics solver surface tilt is obtained
97    C     indirectly via geostrophic velocities. Define following CPP
98    C     in order to use ETAN instead.
99    # define EXPLICIT_SSH_SLOPE
100    C--   Defining this flag turns on a FV-discretization of the B-grid LSOR
101    C     solver. It is smoother and includes all metric terms, similar to the
102    C     C-grid solver. It is here for completeness, but its usefulness is
103    C     unclear.
104    # undef SEAICE_LSRBNEW
105  #endif /* SEAICE_CGRID */  #endif /* SEAICE_CGRID */
106    
107  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
108  #define SEAICE_CAP_HEFF  C     currently only relevant for SEAICE_GROWTH_LEGACY
109    #undef SEAICE_CAP_HEFF
110    C--   When set limit the Ice-Loading to mass of 1/5 of Surface ocean grid-box
111    #undef SEAICE_CAP_ICELOAD
112    C--   When set use SEAICE_clipVelocties = .true., to clip U/VICE at 40cm/s,
113    C--   not recommended
114    #undef SEAICE_ALLOW_CLIPVELS
115    C--   When set cap the sublimation latent heat flux in solve4temp
116    C     according to the available amount of ice+snow. Otherwise this
117    C     term is treated like all of the others -- residuals heat and
118    C     fw stocks are passed to the ocean at the end of seaice_growth
119    C     in a conservative manner. SEAICE_CAP_SUBLIM is not needed
120    C     as of now, but kept just in case.
121    #undef SEAICE_CAP_SUBLIM
122    
123    C--   enable free drift code
124    #undef SEAICE_ALLOW_FREEDRIFT
125    
126    #endif /* ALLOW_SEAICE */
127  #endif /* SEAICE_OPTIONS_H */  #endif /* SEAICE_OPTIONS_H */
128    
129  CEH3 ;;; Local Variables: ***  CEH3 ;;; Local Variables: ***
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