/[MITgcm]/MITgcm_contrib/high_res_cube/code-mods/SEAICE_OPTIONS.h

Diff of /MITgcm_contrib/high_res_cube/code-mods/SEAICE_OPTIONS.h

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

-revision 1.2 by dimitri,
Sat Jan 10 00:50:25 2004 UTC
+revision 1.12 by dimitri,
Thu Jul 19 19:14:40 2007 UTC
 Line 11 
 C     \=================================
  #ifndef SEAICE_OPTIONS_H
  #define SEAICE_OPTIONS_H
  #include "PACKAGES_CONFIG.h"
- #ifdef ALLOW_SEAICE
  #include "CPP_OPTIONS.h"
  C--   Write "text-plots" of certain fields in STDOUT for debugging.
-Line 23 
 C     This option is provided to allow u
+Line 21 
 C     This option is provided to allow u
  C     on the thermodynamics component of the code only.
  C     Sea-ice dynamics can also be turned off at runtime
  C     using variable SEAICEuseDYNAMICS.
- #undef SEAICE_ALLOW_DYNAMICS
+ #define SEAICE_ALLOW_DYNAMICS
  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.
+ C     include file EXF_FIELDS.h (=> cannot be defined without pkg/EXF )
  #define SEAICE_EXTERNAL_FORCING
- #ifdef SEAICE_EXTERNAL_FORCING
+ #ifndef ALLOW_EXF
- #include "EXF_OPTIONS.h"
+ # undef SEAICE_EXTERNAL_FORCING
- #endif /* SEAICE_EXTERNAL_FORCING */
+ #endif
+ #ifdef  SEAICE_EXTERNAL_FORCING
+ #  include "EXF_OPTIONS.h"
  C--   By default, the sea-ice package uses its own integrated bulk
  C     formulae to compute fluxes (fu, fv, EmPmR, Qnet, and Qsw) over
  C     open-ocean.  When this flag is set, these variables are computed
  C     in a separate external package, for example, pkg/exf, and then
  C     modified for sea-ice effects by pkg/seaice.
- #define SEAICE_EXTERNAL_FLUXES
+ # define SEAICE_EXTERNAL_FLUXES
+ #else  /* SEAICE_EXTERNAL_FORCING */
+ C-    current implementation requires those options to be set:
+ # undef  SEAICE_EXTERNAL_FLUXES
+ # define ALLOW_ATM_TEMP
+ # define ALLOW_DOWNWARD_RADIATION
+ # define ALLOW_RUNOFF
+ #endif /* SEAICE_EXTERNAL_FORCING */
+ #ifdef ALLOW_OBCS
+ C- OBCS information is needed to define the correct sea ice mask.
+ #include "OBCS_OPTIONS.h"
+ #endif /* ALLOW_OBCS */
  C--   By default, the sea-ice package uses 2-category thermodynamics.
  C     When this flag is set, an 8-category calculation of ice
  C     thermodynamics is carried out in groatb.F
- C     !!! Note the pickup_seaice.* generated by this option differ !!!
+ C     Note the pickup_seaice.* generated by this option differ
- C     !!! from those generated with the default 2-category model.  !!!
+ C     from those generated with the default 2-category model.
- C     !!! Therefore it is not possible to switch between the two   !!!
+ C     Therefore it is not possible to switch between the two
- C     !!! in the middle of an integration.                         !!!
+ C     in the middle of an integration.
- #undef SEAICE_MULTILEVEL
+ #define SEAICE_MULTICATEGORY
+ C--   By default cdm wind stress under sea-ice is set to the
+ C     same value as it would be if there was no sea-ice.
+ C     This is a placeholder until a more physically-sensible
+ C     stable solution is developed.  Apparently ocean stress
+ C     that is based on sea-ice velocity can cause trouble in
+ C     Arctic Ocean configurations.  This temporary solution
+ C     also corresponds to that adopted by CCSM-2.  For the
+ C     adventurous user who requires ice-modified stress,
+ C     following options are available.
+ #undef SEAICE_ORIGINAL_BAD_ICE_STRESS
+ #undef SEAICE_TEST_ICE_STRESS_1
+ C--   By default the freezing point of water is set to the value of
+ C     the parameter SEAICE_freeze (=-1.96 by default). To use a
+ C     simple linear dependence of the freezing point on salinity,
+ C     set the following flag (pressure is assumed to have no effect,
+ C     which is a good assumption for the top 20 meters). With this
+ C     option defined the parameter SEAICE_freeze has no effect.
+ #define SEAICE_VARIABLE_FREEZING_POINT
+ C--   Allow SEAICEuseFlooding, which converts snow to ice if submerged.
+ #define ALLOW_SEAICE_FLOODING
+ C--   By default the seaice model is discretized on a B-Grid (for
+ C     historical reasons). Define the following flag to use a new
+ C     (not thoroughly) test version on a C-grid
+ #define SEAICE_CGRID
+ C--   Only for the C-grid version it is possible to enable EVP code by
+ C     defining the following flag
+ #ifdef SEAICE_CGRID
+ #undef SEAICE_ALLOW_EVP
+ #endif /* SEAICE_CGRID */
+ C--   When set use MAX_HEFF to cap sea ice thickness in seaice_growth
+ #define SEAICE_CAP_HEFF
- #endif /* ALLOW_SEAICE */
  #endif /* SEAICE_OPTIONS_H */
+ CEH3 ;;; Local Variables: ***
+ CEH3 ;;; mode:fortran ***
+ CEH3 ;;; End: ***

 Legend:



Removed from v.1.2
 


changed lines


 
Added in v.1.12
 Legend:



Removed from v.1.2
 


changed lines


 
Added in v.1.12
-Removed from v.1.2
+Added in v.1.12

	ViewVC Help
Powered by ViewVC 1.1.22