| 1 |
dimitri |
1.17 |
C $Header: /u/gcmpack/MITgcm/verification/1D_ocean_ice_column/code/SEAICE_OPTIONS.h,v 1.16 2012/11/15 20:12:02 jmc 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 |
jmc |
1.15 |
C-- The actual number of ice categories used to solve for seaice flux is |
| 38 |
|
|
C now a run-time parameter (SEAICE_multDim). |
| 39 |
|
|
C This CPP-flag will be completely removed soon (no longer in main code); |
| 40 |
|
|
C it is just used to set default number of categories, i.e., =1 if undef, |
| 41 |
|
|
C or =MULTDIM if defined (MULTDIM=7 in default SEAICE_SIZE.h). |
| 42 |
|
|
C Note: be aware of pickup_seaice.* compatibility issues when restarting |
| 43 |
|
|
C a simulation with a different number of categories. |
| 44 |
ifenty |
1.1 |
#undef SEAICE_MULTICATEGORY |
| 45 |
jmc |
1.15 |
|
| 46 |
jmc |
1.16 |
C-- run with sea Ice Thickness Distribution (ITD); |
| 47 |
|
|
C set number of categories (nITD) in SEAICE_SIZE.h |
| 48 |
|
|
#undef SEAICE_ITD |
| 49 |
|
|
|
| 50 |
jmc |
1.15 |
C-- Use the Old version of seaice_growth (close to cvs version 1.70) |
| 51 |
|
|
C otherwise, use the merged version (with some of Ian Fenty s code) |
| 52 |
|
|
#undef SEAICE_GROWTH_LEGACY |
| 53 |
ifenty |
1.1 |
#undef SEAICE_MODIFY_GROWTH_ADJ |
| 54 |
|
|
|
| 55 |
gforget |
1.11 |
C-- Since the missing sublimation term is now included |
| 56 |
|
|
C this flag is needed for backward compatibility |
| 57 |
|
|
#define SEAICE_DISABLE_SUBLIM |
| 58 |
|
|
|
| 59 |
jmc |
1.15 |
C-- Suspected missing term in coupled ocn-ice heat budget (to be confirmed) |
| 60 |
gforget |
1.12 |
#define SEAICE_DISABLE_HEATCONSFIX |
| 61 |
|
|
|
| 62 |
jmc |
1.15 |
C-- Default is constant seaice salinity (SEAICE_salt0); Define the following |
| 63 |
|
|
C flag to consider (space & time) variable salinity: advected and forming |
| 64 |
|
|
C seaice with a fraction (=SEAICE_saltFrac) of freezing seawater salinity. |
| 65 |
|
|
C- Note: SItracer also offers an alternative way to handle variable salinity. |
| 66 |
|
|
#define SEAICE_VARIABLE_SALINITY |
| 67 |
|
|
|
| 68 |
|
|
C-- Tracers of ice and/or ice cover. |
| 69 |
|
|
#undef ALLOW_SITRACER |
| 70 |
|
|
#ifdef ALLOW_SITRACER |
| 71 |
|
|
C-- To try avoid 'spontaneous generation' of tracer maxima by advdiff. |
| 72 |
|
|
# define ALLOW_SITRACER_ADVCAP |
| 73 |
|
|
#endif |
| 74 |
ifenty |
1.1 |
|
| 75 |
|
|
C-- By default the seaice model is discretized on a B-Grid (for |
| 76 |
|
|
C historical reasons). Define the following flag to use a new |
| 77 |
|
|
C (not thoroughly) test version on a C-grid |
| 78 |
jmc |
1.15 |
#undef SEAICE_CGRID |
| 79 |
ifenty |
1.1 |
|
| 80 |
jmc |
1.15 |
C-- Only for the C-grid version it is possible to |
| 81 |
ifenty |
1.1 |
#ifdef SEAICE_CGRID |
| 82 |
jmc |
1.15 |
C enable JFNK code by defining the following flag |
| 83 |
|
|
# define SEAICE_ALLOW_JFNK |
| 84 |
|
|
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: *** |
Parent Directory
| 
Revision Log
| 
Revision Graph