v2_cs510_Brix/code/SEAICE_OPTIONS.h

C $Header: /u/gcmpack/MITgcm_contrib/high_res_cube/code-mods/SEAICE_OPTIONS.h,v 1.16 2008/01/11 20:23:44 dimitri Exp $

C     /==========================================================\
C     | SEAICE_OPTIONS.h                                         |
C     | o CPP options file for sea ice package.                  |
C     |==========================================================|
C     | Use this file for selecting options within the sea ice   |
C     | package.                                                 |
C     \==========================================================/

#ifndef SEAICE_OPTIONS_H
#define SEAICE_OPTIONS_H
#include "PACKAGES_CONFIG.h"
#include "CPP_OPTIONS.h"

C--   Write "text-plots" of certain fields in STDOUT for debugging.
#undef SEAICE_DEBUG

C--   Allow sea-ice dynamic code.
C     This option is provided to allow use of TAMC
C     on the thermodynamics component of the code only.
C     Sea-ice dynamics can also be turned off at runtime
C     using variable SEAICEuseDYNAMICS.
#define SEAICE_ALLOW_DYNAMICS

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

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     from those generated with the default 2-category model.
C     Therefore it is not possible to switch between the two
C     in the middle of an integration.
#define SEAICE_MULTICATEGORY

C--   By default for B-grid dynamics solver wind stress under sea-ice is
C     set to the same value as it would be if there was no sea-ice.
C     Define following CPP flag for B-grid ice-ocean stress coupling.
#undef SEAICE_TEST_ICE_STRESS_1

C--   By default for B-grid dynamics solver surface tilt is obtained
C     indirectly via geostrophic velocities.  Define following CPP
C     in order to ues ETAN instead.
#undef EXPLICIT_SSH_SLOPE

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 sea ice is fresh.  Set following flag for salty ice.
#define SEAICE_VARIABLE_SALINITY

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 /* SEAICE_OPTIONS_H */

CEH3 ;;; Local Variables: ***
CEH3 ;;; mode:fortran ***
CEH3 ;;; End: ***
1	dimitri	1.2	C $Header: /u/gcmpack/MITgcm_contrib/high_res_cube/code-mods/SEAICE_OPTIONS.h,v 1.16 2008/01/11 20:23:44 dimitri Exp $
2	dimitri	1.1
3	dimitri	1.2	C /==========================================================\
4	dimitri	1.1	C \| SEAICE_OPTIONS.h \|
5			C \| o CPP options file for sea ice package. \|
6	dimitri	1.2	C \|==========================================================\|
7	dimitri	1.1	C \| Use this file for selecting options within the sea ice \|
8			C \| package. \|
9	dimitri	1.2	C \==========================================================/
10	dimitri	1.1
11			#ifndef SEAICE_OPTIONS_H
12			#define SEAICE_OPTIONS_H
13			#include "PACKAGES_CONFIG.h"
14			#include "CPP_OPTIONS.h"
15
16			C-- Write "text-plots" of certain fields in STDOUT for debugging.
17			#undef SEAICE_DEBUG
18
19			C-- Allow sea-ice dynamic code.
20			C This option is provided to allow use of TAMC
21			C on the thermodynamics component of the code only.
22			C Sea-ice dynamics can also be turned off at runtime
23			C using variable SEAICEuseDYNAMICS.
24			#define SEAICE_ALLOW_DYNAMICS
25
26			C-- By default, the sea-ice package uses its own integrated bulk
27			C formulae to compute fluxes (fu, fv, EmPmR, Qnet, and Qsw) over
28			C open-ocean. When this flag is set, these variables are computed
29			C in a separate external package, for example, pkg/exf, and then
30			C modified for sea-ice effects by pkg/seaice.
31			#define SEAICE_EXTERNAL_FLUXES
32
33			C-- By default, the sea-ice package uses 2-category thermodynamics.
34			C When this flag is set, an 8-category calculation of ice
35			C thermodynamics is carried out in groatb.F
36			C Note the pickup_seaice.* generated by this option differ
37			C from those generated with the default 2-category model.
38			C Therefore it is not possible to switch between the two
39			C in the middle of an integration.
40			#define SEAICE_MULTICATEGORY
41
42	dimitri	1.2	C-- By default for B-grid dynamics solver wind stress under sea-ice is
43			C set to the same value as it would be if there was no sea-ice.
44			C Define following CPP flag for B-grid ice-ocean stress coupling.
45			#undef SEAICE_TEST_ICE_STRESS_1
46	dimitri	1.1
47	dimitri	1.2	C-- By default for B-grid dynamics solver surface tilt is obtained
48			C indirectly via geostrophic velocities. Define following CPP
49			C in order to ues ETAN instead.
50			#undef EXPLICIT_SSH_SLOPE
51
52			C-- By default the freezing point of water is set to the value of
53	dimitri	1.1	C the parameter SEAICE_freeze (=-1.96 by default). To use a
54	dimitri	1.2	C simple linear dependence of the freezing point on salinity,
55	dimitri	1.1	C set the following flag (pressure is assumed to have no effect,
56			C which is a good assumption for the top 20 meters). With this
57			C option defined the parameter SEAICE_freeze has no effect.
58			#define SEAICE_VARIABLE_FREEZING_POINT
59
60			C-- Allow SEAICEuseFlooding, which converts snow to ice if submerged.
61			#define ALLOW_SEAICE_FLOODING
62
63			C-- By default sea ice is fresh. Set following flag for salty ice.
64			#define SEAICE_VARIABLE_SALINITY
65
66	dimitri	1.2	C-- By default the seaice model is discretized on a B-Grid (for
67	dimitri	1.1	C historical reasons). Define the following flag to use a new
68			C (not thoroughly) test version on a C-grid
69			#define SEAICE_CGRID
70
71	dimitri	1.2	C-- Only for the C-grid version it is possible to enable EVP code by
72			C defining the following flag
73	dimitri	1.1	#ifdef SEAICE_CGRID
74	dimitri	1.2	#undef SEAICE_ALLOW_EVP
75	dimitri	1.1	#endif /* SEAICE_CGRID */
76
77			C-- When set use MAX_HEFF to cap sea ice thickness in seaice_growth
78			#define SEAICE_CAP_HEFF
79
80			#endif /* SEAICE_OPTIONS_H */
81
82			CEH3 ;;; Local Variables: ***
83			CEH3 ;;; mode:fortran ***
84			CEH3 ;;; End: ***