1 |
dimitri |
1.18 |
C $Header: /u/gcmpack/MITgcm/verification/1D_ocean_ice_column/code/SEAICE_OPTIONS.h,v 1.17 2012/12/18 20:04:28 dimitri Exp $ |
2 |
ifenty |
1.1 |
C $Name: $ |
3 |
|
|
|
4 |
jmc |
1.5 |
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 |
ifenty |
1.1 |
|
12 |
|
|
#ifndef SEAICE_OPTIONS_H |
13 |
|
|
#define SEAICE_OPTIONS_H |
14 |
|
|
#include "PACKAGES_CONFIG.h" |
15 |
|
|
#include "CPP_OPTIONS.h" |
16 |
|
|
|
17 |
jmc |
1.5 |
#ifdef ALLOW_SEAICE |
18 |
|
|
C Package-specific Options & Macros go here |
19 |
|
|
|
20 |
ifenty |
1.1 |
C-- Write "text-plots" of certain fields in STDOUT for debugging. |
21 |
|
|
#undef SEAICE_DEBUG |
22 |
|
|
|
23 |
|
|
C-- Allow sea-ice dynamic code. |
24 |
|
|
C This option is provided to allow use of TAMC |
25 |
|
|
C on the thermodynamics component of the code only. |
26 |
|
|
C Sea-ice dynamics can also be turned off at runtime |
27 |
|
|
C using variable SEAICEuseDYNAMICS. |
28 |
jmc |
1.15 |
#define SEAICE_ALLOW_DYNAMICS |
29 |
ifenty |
1.1 |
|
30 |
|
|
C-- By default, the sea-ice package uses its own integrated bulk |
31 |
|
|
C formulae to compute fluxes (fu, fv, EmPmR, Qnet, and Qsw) over |
32 |
|
|
C open-ocean. When this flag is set, these variables are computed |
33 |
|
|
C in a separate external package, for example, pkg/exf, and then |
34 |
|
|
C modified for sea-ice effects by pkg/seaice. |
35 |
|
|
#define SEAICE_EXTERNAL_FLUXES |
36 |
|
|
|
37 |
dimitri |
1.18 |
C-- This CPP flag has been retired. The number of ice categories |
38 |
|
|
C used to solve for seaice flux is now specified by run-time |
39 |
|
|
C parameter SEAICE_multDim. |
40 |
|
|
C Note: be aware of pickup_seaice.* compatibility issues when |
41 |
|
|
C restarting a simulation with a different number of categories. |
42 |
|
|
c#define SEAICE_MULTICATEGORY |
43 |
jmc |
1.15 |
|
44 |
jmc |
1.16 |
C-- run with sea Ice Thickness Distribution (ITD); |
45 |
|
|
C set number of categories (nITD) in SEAICE_SIZE.h |
46 |
|
|
#undef SEAICE_ITD |
47 |
|
|
|
48 |
jmc |
1.15 |
C-- Use the Old version of seaice_growth (close to cvs version 1.70) |
49 |
|
|
C otherwise, use the merged version (with some of Ian Fenty s code) |
50 |
|
|
#undef SEAICE_GROWTH_LEGACY |
51 |
ifenty |
1.1 |
#undef SEAICE_MODIFY_GROWTH_ADJ |
52 |
|
|
|
53 |
gforget |
1.11 |
C-- Since the missing sublimation term is now included |
54 |
|
|
C this flag is needed for backward compatibility |
55 |
|
|
#define SEAICE_DISABLE_SUBLIM |
56 |
|
|
|
57 |
jmc |
1.15 |
C-- Suspected missing term in coupled ocn-ice heat budget (to be confirmed) |
58 |
gforget |
1.12 |
#define SEAICE_DISABLE_HEATCONSFIX |
59 |
|
|
|
60 |
jmc |
1.15 |
C-- Default is constant seaice salinity (SEAICE_salt0); Define the following |
61 |
|
|
C flag to consider (space & time) variable salinity: advected and forming |
62 |
|
|
C seaice with a fraction (=SEAICE_saltFrac) of freezing seawater salinity. |
63 |
|
|
C- Note: SItracer also offers an alternative way to handle variable salinity. |
64 |
|
|
#define SEAICE_VARIABLE_SALINITY |
65 |
|
|
|
66 |
|
|
C-- Tracers of ice and/or ice cover. |
67 |
|
|
#undef ALLOW_SITRACER |
68 |
|
|
#ifdef ALLOW_SITRACER |
69 |
|
|
C-- To try avoid 'spontaneous generation' of tracer maxima by advdiff. |
70 |
|
|
# define ALLOW_SITRACER_ADVCAP |
71 |
|
|
#endif |
72 |
ifenty |
1.1 |
|
73 |
|
|
C-- By default the seaice model is discretized on a B-Grid (for |
74 |
|
|
C historical reasons). Define the following flag to use a new |
75 |
|
|
C (not thoroughly) test version on a C-grid |
76 |
jmc |
1.15 |
#undef SEAICE_CGRID |
77 |
ifenty |
1.1 |
|
78 |
jmc |
1.15 |
C-- Only for the C-grid version it is possible to |
79 |
ifenty |
1.1 |
#ifdef SEAICE_CGRID |
80 |
jmc |
1.15 |
C enable JFNK code by defining the following flag |
81 |
|
|
# define SEAICE_ALLOW_JFNK |
82 |
dimitri |
1.18 |
C enable LSR to use global (multi-tile) tri-diagonal solver |
83 |
|
|
# undef SEAICE_GLOBAL_3DIAG_SOLVER |
84 |
jmc |
1.15 |
C enable EVP code by defining the following flag |
85 |
|
|
# define SEAICE_ALLOW_EVP |
86 |
|
|
# ifdef SEAICE_ALLOW_EVP |
87 |
|
|
C-- When set use SEAICE_zetaMin and SEAICE_evpDampC to limit viscosities |
88 |
|
|
C from below and above in seaice_evp: not necessary, and not recommended |
89 |
|
|
# undef SEAICE_ALLOW_CLIPZETA |
90 |
jmc |
1.16 |
# endif /* SEAICE_ALLOW_EVP */ |
91 |
jmc |
1.15 |
C regularize zeta to zmax with a smooth tanh-function instead |
92 |
|
|
C of a min(zeta,zmax). This improves convergence of iterative |
93 |
|
|
C solvers (Lemieux and Tremblay 2009, JGR). No effect on EVP |
94 |
jmc |
1.16 |
# undef SEAICE_ZETA_SMOOTHREG |
95 |
jmc |
1.15 |
C allow the truncated ellipse rheology (runtime flag SEAICEuseTEM) |
96 |
|
|
# undef SEAICE_ALLOW_TEM |
97 |
|
|
#else /* not SEAICE_CGRID, but old B-grid */ |
98 |
|
|
C-- By default for B-grid dynamics solver wind stress under sea-ice is |
99 |
|
|
C set to the same value as it would be if there was no sea-ice. |
100 |
|
|
C Define following CPP flag for B-grid ice-ocean stress coupling. |
101 |
|
|
# define SEAICE_BICE_STRESS |
102 |
|
|
|
103 |
|
|
C-- By default for B-grid dynamics solver surface tilt is obtained |
104 |
|
|
C indirectly via geostrophic velocities. Define following CPP |
105 |
|
|
C in order to use ETAN instead. |
106 |
|
|
# define EXPLICIT_SSH_SLOPE |
107 |
|
|
C-- Defining this flag turns on FV-discretization of the B-grid LSOR solver. |
108 |
|
|
C It is smoother and includes all metric terms, similar to C-grid solvers. |
109 |
|
|
C It is here for completeness, but its usefulness is unclear. |
110 |
|
|
# undef SEAICE_LSRBNEW |
111 |
ifenty |
1.1 |
#endif /* SEAICE_CGRID */ |
112 |
|
|
|
113 |
jmc |
1.15 |
C-- When set use MAX_HEFF to cap seaice thickness in seaice_growth; |
114 |
|
|
C currently only relevant for SEAICE_GROWTH_LEGACY |
115 |
|
|
#undef SEAICE_CAP_HEFF |
116 |
|
|
C-- When set limit the Ice-Loading to mass of 1/5 of Surface ocean grid-box |
117 |
|
|
#undef SEAICE_CAP_ICELOAD |
118 |
|
|
C-- When set use SEAICE_clipVelocties = .true., to clip U/VICE at 40cm/s, |
119 |
|
|
C not recommended |
120 |
|
|
#undef SEAICE_ALLOW_CLIPVELS |
121 |
|
|
C-- When set cap the sublimation latent heat flux in solve4temp according |
122 |
|
|
C to the available amount of ice+snow. Otherwise this term is treated |
123 |
|
|
C like all of the others -- residuals heat and fw stocks are passed to |
124 |
|
|
C the ocean at the end of seaice_growth in a conservative manner. |
125 |
|
|
C SEAICE_CAP_SUBLIM is not needed as of now, but kept just in case. |
126 |
|
|
#undef SEAICE_CAP_SUBLIM |
127 |
|
|
|
128 |
|
|
C-- Enable free drift code |
129 |
|
|
#undef SEAICE_ALLOW_FREEDRIFT |
130 |
|
|
|
131 |
jmc |
1.5 |
#endif /* ALLOW_SEAICE */ |
132 |
ifenty |
1.1 |
#endif /* SEAICE_OPTIONS_H */ |
133 |
|
|
|
134 |
|
|
CEH3 ;;; Local Variables: *** |
135 |
|
|
CEH3 ;;; mode:fortran *** |
136 |
|
|
CEH3 ;;; End: *** |