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

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-revision 1.17 by dimitri,
Wed Jul 28 22:48:02 2010 UTC
+revision 1.19 by dimitri,
Mon Mar 19 20:31:59 2012 UTC
 Line 1
  C $Header$
+ C $Name$
- C     /==========================================================\
+ C     *==========================================================*
- C     | SEAICE_OPTIONS.h                                         |
+ C     | SEAICE_OPTIONS.h
- C     | o CPP options file for sea ice package.                  |
+ C     | o CPP options file for sea ice package.
- C     |==========================================================|
+ C     *==========================================================*
- C     | Use this file for selecting options within the sea ice   |
+ C     | Use this file for selecting options within the sea ice
- C     | package.                                                 |
+ C     | package.
- C     \==========================================================/
+ C     *==========================================================*
  #ifndef SEAICE_OPTIONS_H
  #define SEAICE_OPTIONS_H
  #include "PACKAGES_CONFIG.h"
  #include "CPP_OPTIONS.h"
+ #ifdef ALLOW_SEAICE
+ C     Package-specific Options & Macros go here
  C--   Write "text-plots" of certain fields in STDOUT for debugging.
  #undef SEAICE_DEBUG
-Line 39 
 C     Therefore it is not possible to sw
+Line 43 
 C     Therefore it is not possible to sw
  C     in the middle of an integration.
  #define SEAICE_MULTICATEGORY
- 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)
- C     the parameter SEAICE_freeze (=-1.96 by default). To use a
+ C     otherwise, use the merged version (with some of Ian Fenty s code)
- C     simple linear dependence of the freezing point on salinity,
+ #undef SEAICE_GROWTH_LEGACY
- 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--   Since the missing sublimation term is now included
- C     option defined the parameter SEAICE_freeze has no effect.
+ C     this flag is needed for backward compatibility
- #define SEAICE_VARIABLE_FREEZING_POINT
+ #undef SEAICE_DISABLE_SUBLIM
- C--   Allow SEAICEuseFlooding, which converts snow to ice if submerged.
+ C--   Suspected missing term in coupled ocn-ice heat budget (to be further tested)
- #define ALLOW_SEAICE_FLOODING
+ #undef SEAICE_DISABLE_HEATCONSFIX
+ C--   options only available in the merged version
+ #ifndef SEAICE_GROWTH_LEGACY
+ C-    to ensure heat conservation in the coupled ocean-seaice system
+ # undef SEAICE_HEAT_CONSERV_FIX
+ C-    to preclude infinitesimal ice concentrations:
+ # undef ALLOW_PRECLUDE_INFINITESIMAL_AREA
+ #endif
  C--   By default sea ice is fresh.  Set following flag for salty ice.
- #define SEAICE_SALINITY
+ #define SEAICE_VARIABLE_SALINITY
- C--   Track sea ice age.
+ C--   Tracers of ice and/or ice cover.
- #undef SEAICE_AGE
+ #undef ALLOW_SITRACER
+ #ifdef ALLOW_SITRACER
+ C--   To try avoid 'spontaneous generation' of tracer maxima by advdiff.
+ # define ALLOW_SITRACER_ADVCAP
+ #endif
  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
  #ifdef SEAICE_CGRID
  C     enable EVP code by defining the following flag
- # undef SEAICE_ALLOW_EVP
+ # define SEAICE_ALLOW_EVP
  # ifdef SEAICE_ALLOW_EVP
  C--   When set use SEAICE_zetaMin and SEAICE_evpDampC to limit
  C--   viscosities from below and above in seaice_evp
-Line 83 
 C--   By default for B-grid dynamics sol
+Line 99 
 C--   By default for B-grid dynamics sol
  C     indirectly via geostrophic velocities. Define following CPP
  C     in order to use ETAN instead.
  # define EXPLICIT_SSH_SLOPE
+ C--   Defining this flag turns on a FV-discretization of the B-grid LSOR
+ C     solver. It is smoother and includes all metric terms, similar to the
+ C     C-grid solver. It is here for completeness, but its usefulness is
+ C     unclear.
+ # undef SEAICE_LSRBNEW
  #endif /* SEAICE_CGRID */
  C--   When set use MAX_HEFF to cap sea ice thickness in seaice_growth
- #define SEAICE_CAP_HEFF
+ #undef SEAICE_CAP_HEFF
+ C--   When set limit the Ice-Loading to mass of 1/5 of Surface ocean grid-box
+ #undef SEAICE_CAP_ICELOAD
  C--   When set use SEAICE_clipVelocties = .true., to clip U/VICE at 40cm/s,
  C--   not recommended
  #undef SEAICE_ALLOW_CLIPVELS
+ C--   When set cap the sublimation latent heat flux in solve4temp
+ C     according to the available amount of ice+snow. Otherwise this
+ C     term is treated like all of the others -- residuals heat and
+ C     fw stocks are passed to the ocean at the end of seaice_growth
+ C     in a conservative manner. SEAICE_CAP_SUBLIM is not needed
+ C     as of now, but kept just in case.
+ #undef SEAICE_CAP_SUBLIM
+ C     enable free drift code
+ #undef SEAICE_ALLOW_FREEDRIFT
+ #endif /* ALLOW_SEAICE */
  #endif /* SEAICE_OPTIONS_H */
  CEH3 ;;; Local Variables: ***

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