/[MITgcm]/MITgcm/verification/lab_sea/code/SEAICE_OPTIONS.h
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revision 1.16 by gforget, Thu Oct 7 21:17:48 2010 UTC revision 1.17 by jmc, Fri Oct 29 00:16:11 2010 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.
# Line 62  C     Define SEAICE_AGE_VOL to associate Line 78  C     Define SEAICE_AGE_VOL to associate
78  # define SEAICE_AGE_VOL  # define SEAICE_AGE_VOL
79  #endif  #endif
80    
81  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
82  C     historical reasons). Define the following flag to use a new  C     historical reasons). Define the following flag to use a new
83  C     (not thoroughly) test version on a C-grid  C     (not thoroughly) test version on a C-grid
84  #define SEAICE_CGRID  #define SEAICE_CGRID
85    
86  C--   Only for the C-grid version it is possible to  C--   Only for the C-grid version it is possible to
87  #ifdef SEAICE_CGRID  #ifdef SEAICE_CGRID
88  C     enable EVP code by defining the following flag  C     enable EVP code by defining the following flag
89  # define SEAICE_ALLOW_EVP  # define SEAICE_ALLOW_EVP
# Line 93  C     in order to use ETAN instead. Line 109  C     in order to use ETAN instead.
109    
110  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
111  #undef SEAICE_CAP_HEFF  #undef SEAICE_CAP_HEFF
112    C--   When set limit the Ice-Loading to mass of 1/5 of Surface ocean grid-box
113    #undef SEAICE_CAP_ICELOAD
114  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,
115  C--   not recommended  C--   not recommended
116  #define SEAICE_ALLOW_CLIPVELS  #define SEAICE_ALLOW_CLIPVELS
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