/[MITgcm]/MITgcm/verification/lab_sea/code/SEAICE_OPTIONS.h
ViewVC logotype

Diff of /MITgcm/verification/lab_sea/code/SEAICE_OPTIONS.h

Parent Directory Parent Directory | Revision Log Revision Log | View Revision Graph Revision Graph | View Patch Patch

revision 1.6 by dimitri, Mon Nov 24 04:39:48 2003 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 $Name$
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
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--   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
61    C     simple linear dependence of the freezing point on salinity,
62    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
64    C     option defined the parameter SEAICE_freeze has no effect.
65    #define SEAICE_VARIABLE_FREEZING_POINT
66    
67    C--   Allow SEAICEuseFlooding, which converts snow to ice if submerged.
68    #define ALLOW_SEAICE_FLOODING
69    
70    C--   By default sea ice is fresh.  Set following flag for salty ice.
71    #define SEAICE_SALINITY
72    
73    C--   Track sea ice age.
74    #define SEAICE_AGE
75    
76    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
78    C     (not thoroughly) test version on a C-grid
79    #define SEAICE_CGRID
80    
81    C--   Only for the C-grid version it is possible to
82    #ifdef SEAICE_CGRID
83    C     enable EVP code by defining the following flag
84    # define SEAICE_ALLOW_EVP
85    # ifdef SEAICE_ALLOW_EVP
86    C--   When set use SEAICE_zetaMin and SEAICE_evpDampC to limit
87    C--   viscosities from below and above in seaice_evp
88    C--   not necessary, and not recommended
89    #  define SEAICE_ALLOW_CLIPZETA
90    # endif /* SEAICE_ALLOW_EVP */
91    C     allow the truncated ellipse rheology (runtime flag SEAICEuseTEM)
92    # undef SEAICE_ALLOW_TEM
93    #else /* not SEAICE_CGRID, but old B-grid */
94    C--   By default for B-grid dynamics solver wind stress under sea-ice is
95    C     set to the same value as it would be if there was no sea-ice.
96    C     Define following CPP flag for B-grid ice-ocean stress coupling.
97    # define SEAICE_BICE_STRESS
98    
99    C--   By default for B-grid dynamics solver surface tilt is obtained
100    C     indirectly via geostrophic velocities. Define following CPP
101    C     in order to use ETAN instead.
102    # define EXPLICIT_SSH_SLOPE
103    #endif /* SEAICE_CGRID */
104    
105    C--   When set use MAX_HEFF to cap sea ice thickness in seaice_growth
106    #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,
110    C--   not recommended
111    #define SEAICE_ALLOW_CLIPVELS
112    
113    C     enable free drift code
114    #define SEAICE_ALLOW_FREEDRIFT
115    
 #endif /* ALLOW_SEAICE */  
116  #endif /* SEAICE_OPTIONS_H */  #endif /* SEAICE_OPTIONS_H */
117    
118    CEH3 ;;; Local Variables: ***
119    CEH3 ;;; mode:fortran ***
120    CEH3 ;;; End: ***
Legend:
Removed from v.1.6  
changed lines
  Added in v.1.18
  ViewVC Help
Powered by ViewVC 1.1.22