/[MITgcm]/MITgcm/pkg/seaice/SEAICE_OPTIONS.h
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Annotation of /MITgcm/pkg/seaice/SEAICE_OPTIONS.h

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Revision 1.10 - (hide annotations) (download)
Wed Dec 22 00:49:36 2004 UTC (19 years, 4 months ago) by dimitri
Branch: MAIN
Changes since 1.9: +17 -5 lines
File MIME type: text/plain
o pkg/seaice: some test code for ice-modified ocean stress

1 dimitri 1.10 C $Header: /u/gcmpack/MITgcm/pkg/seaice/SEAICE_OPTIONS.h,v 1.9 2004/03/12 22:18:15 dimitri Exp $
2 heimbach 1.2
3     C /==========================================================\
4     C | SEAICE_OPTIONS.h |
5     C | o CPP options file for sea ice package. |
6     C |==========================================================|
7     C | Use this file for selecting options within the sea ice |
8 edhill 1.7 C | package. |
9 heimbach 1.2 C \==========================================================/
10    
11 edhill 1.7 #ifndef SEAICE_OPTIONS_H
12     #define SEAICE_OPTIONS_H
13     #include "PACKAGES_CONFIG.h"
14     #ifdef ALLOW_SEAICE
15    
16 heimbach 1.2 #include "CPP_OPTIONS.h"
17    
18 dimitri 1.3 C-- Write "text-plots" of certain fields in STDOUT for debugging.
19 heimbach 1.2 #undef SEAICE_DEBUG
20    
21 dimitri 1.3 C-- Allow sea-ice dynamic code.
22     C This option is provided to allow use of TAMC
23     C on the thermodynamics component of the code only.
24     C Sea-ice dynamics can also be turned off at runtime
25     C using variable SEAICEuseDYNAMICS.
26 heimbach 1.2 #define SEAICE_ALLOW_DYNAMICS
27 dimitri 1.3
28     C-- By default, pkg/seaice defines forcing variable internally, in
29     C SEAICE_FFIELDS.h, and reads them in from files. When CPP option
30     C SEAICE_EXTERNAL_FORCING is defined, the above forcing variables
31     C are defined and provided by an external package. At present this
32     C option is hardwired for pkg/exf and the variables are passed using
33     C include file exf_fields.h.
34 dimitri 1.9 #define SEAICE_EXTERNAL_FORCING
35 dimitri 1.8 #ifdef SEAICE_EXTERNAL_FORCING
36     #include "EXF_OPTIONS.h"
37     #endif /* SEAICE_EXTERNAL_FORCING */
38 dimitri 1.3
39     C-- By default, the sea-ice package uses its own integrated bulk
40     C formulae to compute fluxes (fu, fv, EmPmR, Qnet, and Qsw) over
41     C open-ocean. When this flag is set, these variables are computed
42     C in a separate external package, for example, pkg/exf, and then
43     C modified for sea-ice effects by pkg/seaice.
44 dimitri 1.9 #define SEAICE_EXTERNAL_FLUXES
45 heimbach 1.2
46 dimitri 1.5 C-- By default, the sea-ice package uses 2-category thermodynamics.
47     C When this flag is set, an 8-category calculation of ice
48     C thermodynamics is carried out in groatb.F
49 dimitri 1.10 C Note the pickup_seaice.* generated by this option differ
50     C from those generated with the default 2-category model.
51     C Therefore it is not possible to switch between the two
52     C in the middle of an integration.
53 dimitri 1.5 #undef SEAICE_MULTILEVEL
54    
55 dimitri 1.10 C-- By default cdm wind stress under sea-ice is set to the
56     C same value as it would be if there was no sea-ice.
57     C This is a placeholder until a more physically-sensible
58     C stable solution is developed. Apparently ocean stress
59     C that is based on sea-ice velocity can cause trouble in
60     C Arctic Ocean configurations. This temporary solution
61     C also corresponds to that adopted by CCSM-2. For the
62     C adventurous user who requires ice-modified stress,
63     C following options are available.
64     #undef SEAICE_ORIGINAL_BAD_ICE_STRESS
65     #undef SEAICE_TEST_ICE_STRESS_1
66    
67 dimitri 1.4 #endif /* ALLOW_SEAICE */
68 edhill 1.7 #endif /* SEAICE_OPTIONS_H */

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