/[MITgcm]/MITgcm/pkg/seaice/SEAICE_OPTIONS.h
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revision 1.73 by mlosch, Thu Mar 7 08:32:48 2013 UTC revision 1.75 by gforget, Wed Oct 1 16:00:51 2014 UTC
# Line 65  C--   To try avoid 'spontaneous generati Line 65  C--   To try avoid 'spontaneous generati
65  # define ALLOW_SITRACER_ADVCAP  # define ALLOW_SITRACER_ADVCAP
66  #endif  #endif
67    
68    C--   Enable grease ice parameterization
69    C     The grease ice parameterization delays formation of solid
70    C     sea ice from frazil ice by a time constant and provides a
71    C     dynamic calculation of the initial solid sea ice thickness
72    C     HO as a function of winds, currents and available grease ice
73    C     volume. Grease ice does not significantly reduce heat loss
74    C     from the ocean in winter and area covered by grease is thus
75    C     handled like open water.
76    C     (For details see Smedsrud and Martin, 2014, Ann.Glac.)
77    C     Set SItrName(1) = 'grease' in namelist SEAICE_PARM03 in data.seaice
78    C     then output SItr01 is SItrNameLong(1) = 'grease ice volume fraction',
79    C     with SItrUnit(1) = '[0-1]', which needs to be multiplied by SIheff
80    C     to yield grease ice volume. Additionally, the actual grease ice
81    C     layer thickness (diagnostic SIgrsLT) can be saved.
82    #undef SEAICE_GREASE
83    C--   grease ice uses SItracer:
84    #ifdef SEAICE_GREASE
85    # define ALLOW_SITRACER
86    # define ALLOW_SITRACER_ADVCAP
87    #endif
88    
89  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
90  C     historical reasons). Define the following flag to use a new  C     historical reasons). Define the following flag to use a new
91  C     (not thoroughly) test version on a C-grid  C     (not thoroughly) test version on a C-grid
# Line 134  C     SEAICE_CAP_SUBLIM is not needed as Line 155  C     SEAICE_CAP_SUBLIM is not needed as
155  C--   Enable free drift code  C--   Enable free drift code
156  #undef SEAICE_ALLOW_FREEDRIFT  #undef SEAICE_ALLOW_FREEDRIFT
157    
158    C--   pkg/seaice cost functions compile flags
159    c       >>> Sea-ice volume (requires pkg/cost)
160    #undef ALLOW_COST_ICE
161    c       >>> Sea-ice misfit to obs (requires pkg/cost and ecco)
162    #undef ALLOW_SEAICE_COST_SMR_AREA
163    
164  #endif /* ALLOW_SEAICE */  #endif /* ALLOW_SEAICE */
165  #endif /* SEAICE_OPTIONS_H */  #endif /* SEAICE_OPTIONS_H */
166    
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