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jahn |
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C $Header: /u/gcmpack/MITgcm_contrib/darwin/verification/darwin_baltic_76x72x24/code/SEAICE_OPTIONS.h,v 1.5 2009/03/30 18:01:47 jahn Exp $ |
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jahn |
1.3 |
C $Name: $ |
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jahn |
1.1 |
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C /==========================================================\ |
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C | SEAICE_OPTIONS.h | |
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C | o CPP options file for sea ice package. | |
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C |==========================================================| |
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C | Use this file for selecting options within the sea ice | |
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C | package. | |
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C \==========================================================/ |
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#ifndef SEAICE_OPTIONS_H |
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#define SEAICE_OPTIONS_H |
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#include "PACKAGES_CONFIG.h" |
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#include "CPP_OPTIONS.h" |
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C-- Write "text-plots" of certain fields in STDOUT for debugging. |
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#undef SEAICE_DEBUG |
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C-- Allow sea-ice dynamic code. |
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C This option is provided to allow use of TAMC |
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C on the thermodynamics component of the code only. |
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C Sea-ice dynamics can also be turned off at runtime |
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C using variable SEAICEuseDYNAMICS. |
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#define SEAICE_ALLOW_DYNAMICS |
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C-- By default, the sea-ice package uses its own integrated bulk |
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C formulae to compute fluxes (fu, fv, EmPmR, Qnet, and Qsw) over |
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C open-ocean. When this flag is set, these variables are computed |
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C in a separate external package, for example, pkg/exf, and then |
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C modified for sea-ice effects by pkg/seaice. |
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1.4 |
#define SEAICE_EXTERNAL_FLUXES |
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jahn |
1.1 |
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C-- By default, the sea-ice package uses 2-category thermodynamics. |
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C When this flag is set, an 8-category calculation of ice |
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C thermodynamics is carried out in groatb.F |
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C Note the pickup_seaice.* generated by this option differ |
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C from those generated with the default 2-category model. |
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C Therefore it is not possible to switch between the two |
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C in the middle of an integration. |
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#define SEAICE_MULTICATEGORY |
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C-- By default for B-grid dynamics solver wind stress under sea-ice is |
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C set to the same value as it would be if there was no sea-ice. |
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C Define following CPP flag for B-grid ice-ocean stress coupling. |
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#undef SEAICE_TEST_ICE_STRESS_1 |
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C-- By default for B-grid dynamics solver surface tilt is obtained |
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C indirectly via geostrophic velocities. Define following CPP |
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C in order to ues ETAN instead. |
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#undef EXPLICIT_SSH_SLOPE |
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C-- By default the freezing point of water is set to the value of |
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C the parameter SEAICE_freeze (=-1.96 by default). To use a |
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C simple linear dependence of the freezing point on salinity, |
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C set the following flag (pressure is assumed to have no effect, |
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C which is a good assumption for the top 20 meters). With this |
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C option defined the parameter SEAICE_freeze has no effect. |
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#define SEAICE_VARIABLE_FREEZING_POINT |
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C-- Allow SEAICEuseFlooding, which converts snow to ice if submerged. |
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#define ALLOW_SEAICE_FLOODING |
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1.4 |
C-- By default sea ice is fresh. Set following flag for salty ice. |
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#undef SEAICE_SALINITY |
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jahn |
1.1 |
C-- By default the seaice model is discretized on a B-Grid (for |
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C historical reasons). Define the following flag to use a new |
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C (not thoroughly) test version on a C-grid |
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#define SEAICE_CGRID |
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1.4 |
C-- Only for the C-grid version it is possible to |
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jahn |
1.1 |
#ifdef SEAICE_CGRID |
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jahn |
1.2 |
C enable EVP code by defining the following flag |
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jahn |
1.1 |
#undef SEAICE_ALLOW_EVP |
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jahn |
1.2 |
C allow the truncated ellipse rheology (runtime flag SEAICEuseTEM) |
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#undef SEAICE_ALLOW_TEM |
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jahn |
1.1 |
#endif /* SEAICE_CGRID */ |
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C-- When set use MAX_HEFF to cap sea ice thickness in seaice_growth |
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#undef SEAICE_CAP_HEFF |
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jahn |
1.6 |
C-- When set use SEAICE_clipVelocties = .true., to clip U/VICE at 40cm/s, |
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C-- not recommended |
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#undef SEAICE_ALLOW_CLIPVELS |
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jahn |
1.1 |
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jahn |
1.5 |
#undef SEAICE_OLD_AND_BAD_DISCRETIZATION |
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jahn |
1.1 |
#endif /* SEAICE_OPTIONS_H */ |
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CEH3 ;;; Local Variables: *** |
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CEH3 ;;; mode:fortran *** |
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CEH3 ;;; End: *** |
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