| 1 |
mmazloff |
1.1 |
C $Header: /u/gcmpack/MITgcm/pkg/seaice/SEAICE_OPTIONS.h,v 1.38 2010/03/01 23:46:13 dimitri Exp $ |
| 2 |
|
|
C $Name: $ |
| 3 |
|
|
|
| 4 |
|
|
C /==========================================================\ |
| 5 |
|
|
C | SEAICE_OPTIONS.h | |
| 6 |
|
|
C | o CPP options file for sea ice package. | |
| 7 |
|
|
C |==========================================================| |
| 8 |
|
|
C | Use this file for selecting options within the sea ice | |
| 9 |
|
|
C | package. | |
| 10 |
|
|
C \==========================================================/ |
| 11 |
|
|
|
| 12 |
|
|
#ifndef SEAICE_OPTIONS_H |
| 13 |
|
|
#define SEAICE_OPTIONS_H |
| 14 |
|
|
#include "PACKAGES_CONFIG.h" |
| 15 |
|
|
#include "CPP_OPTIONS.h" |
| 16 |
|
|
|
| 17 |
|
|
C-- Write "text-plots" of certain fields in STDOUT for debugging. |
| 18 |
|
|
#undef SEAICE_DEBUG |
| 19 |
|
|
|
| 20 |
|
|
C-- Allow sea-ice dynamic code. |
| 21 |
|
|
C This option is provided to allow use of TAMC |
| 22 |
|
|
C on the thermodynamics component of the code only. |
| 23 |
|
|
C Sea-ice dynamics can also be turned off at runtime |
| 24 |
|
|
C using variable SEAICEuseDYNAMICS. |
| 25 |
|
|
#define SEAICE_ALLOW_DYNAMICS |
| 26 |
|
|
|
| 27 |
|
|
C-- By default, the sea-ice package uses its own integrated bulk |
| 28 |
|
|
C formulae to compute fluxes (fu, fv, EmPmR, Qnet, and Qsw) over |
| 29 |
|
|
C open-ocean. When this flag is set, these variables are computed |
| 30 |
|
|
C in a separate external package, for example, pkg/exf, and then |
| 31 |
|
|
C modified for sea-ice effects by pkg/seaice. |
| 32 |
|
|
#define SEAICE_EXTERNAL_FLUXES |
| 33 |
|
|
|
| 34 |
|
|
C-- By default, the sea-ice package uses 2-category thermodynamics. |
| 35 |
|
|
C When this flag is set, an 8-category calculation of ice |
| 36 |
|
|
C thermodynamics is carried out in groatb.F |
| 37 |
|
|
C Note the pickup_seaice.* generated by this option differ |
| 38 |
|
|
C from those generated with the default 2-category model. |
| 39 |
|
|
C Therefore it is not possible to switch between the two |
| 40 |
|
|
C in the middle of an integration. |
| 41 |
|
|
#undef SEAICE_MULTICATEGORY |
| 42 |
|
|
|
| 43 |
|
|
C-- By default the freezing point of water is set to the value of |
| 44 |
|
|
C the parameter SEAICE_freeze (=-1.96 by default). To use a |
| 45 |
|
|
C simple linear dependence of the freezing point on salinity, |
| 46 |
|
|
C set the following flag (pressure is assumed to have no effect, |
| 47 |
|
|
C which is a good assumption for the top 20 meters). With this |
| 48 |
|
|
C option defined the parameter SEAICE_freeze has no effect. |
| 49 |
|
|
#undef SEAICE_VARIABLE_FREEZING_POINT |
| 50 |
|
|
|
| 51 |
|
|
C-- Allow SEAICEuseFlooding, which converts snow to ice if submerged. |
| 52 |
|
|
#define ALLOW_SEAICE_FLOODING |
| 53 |
|
|
|
| 54 |
|
|
C-- By default sea ice is fresh. Set following flag for salty ice. |
| 55 |
|
|
#define SEAICE_SALINITY |
| 56 |
|
|
|
| 57 |
|
|
C-- Track sea ice age. |
| 58 |
|
|
#undef SEAICE_AGE |
| 59 |
|
|
|
| 60 |
|
|
C-- By default the seaice model is discretized on a B-Grid (for |
| 61 |
|
|
C historical reasons). Define the following flag to use a new |
| 62 |
|
|
C (not thoroughly) test version on a C-grid |
| 63 |
|
|
#define SEAICE_CGRID |
| 64 |
|
|
|
| 65 |
|
|
C-- Only for the C-grid version it is possible to |
| 66 |
|
|
#ifdef SEAICE_CGRID |
| 67 |
|
|
C enable EVP code by defining the following flag |
| 68 |
|
|
# undef SEAICE_ALLOW_EVP |
| 69 |
|
|
# ifdef SEAICE_ALLOW_EVP |
| 70 |
|
|
C-- When set use SEAICE_zetaMin and SEAICE_evpDampC to limit |
| 71 |
|
|
C-- viscosities from below and above in seaice_evp |
| 72 |
|
|
C-- not necessary, and not recommended |
| 73 |
|
|
# undef SEAICE_ALLOW_CLIPZETA |
| 74 |
|
|
# endif /* SEAICE_ALLOW_EVP */ |
| 75 |
|
|
C allow the truncated ellipse rheology (runtime flag SEAICEuseTEM) |
| 76 |
|
|
# undef SEAICE_ALLOW_TEM |
| 77 |
|
|
#else /* not SEAICE_CGRID, but old B-grid */ |
| 78 |
|
|
C-- By default for B-grid dynamics solver wind stress under sea-ice is |
| 79 |
|
|
C set to the same value as it would be if there was no sea-ice. |
| 80 |
|
|
C Define following CPP flag for B-grid ice-ocean stress coupling. |
| 81 |
|
|
# define SEAICE_BICE_STRESS |
| 82 |
|
|
|
| 83 |
|
|
C-- By default for B-grid dynamics solver surface tilt is obtained |
| 84 |
|
|
C indirectly via geostrophic velocities. Define following CPP |
| 85 |
|
|
C in order to use ETAN instead. |
| 86 |
|
|
# define EXPLICIT_SSH_SLOPE |
| 87 |
|
|
#endif /* SEAICE_CGRID */ |
| 88 |
|
|
|
| 89 |
|
|
C-- When set use MAX_HEFF to cap sea ice thickness in seaice_growth |
| 90 |
|
|
#define SEAICE_CAP_HEFF |
| 91 |
|
|
C-- When set use SEAICE_clipVelocties = .true., to clip U/VICE at 40cm/s, |
| 92 |
|
|
C-- not recommended |
| 93 |
|
|
#undef SEAICE_ALLOW_CLIPVELS |
| 94 |
|
|
|
| 95 |
|
|
#define DISABLE_SEAICE_OBCS |
| 96 |
|
|
CMM( ian's code |
| 97 |
|
|
#define SEAICE_ALLOW_TD_IF |
| 98 |
|
|
|
| 99 |
|
|
#endif /* SEAICE_OPTIONS_H */ |
| 100 |
|
|
|
| 101 |
|
|
CEH3 ;;; Local Variables: *** |
| 102 |
|
|
CEH3 ;;; mode:fortran *** |
| 103 |
|
|
CEH3 ;;; End: *** |
Parent Directory
| 
Revision Log
| 
Revision Graph