/[MITgcm]/MITgcm/model/inc/CPP_OPTIONS.h
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revision 1.34 by jmc, Wed Aug 24 23:05:32 2005 UTC revision 1.36 by mlosch, Wed Apr 5 21:25:53 2006 UTC
# Line 39  C o Allow the use of Non-Linear Free-Sur Line 39  C o Allow the use of Non-Linear Free-Sur
39  C   this implies that surface thickness (hFactors) vary with time  C   this implies that surface thickness (hFactors) vary with time
40  #undef NONLIN_FRSURF  #undef NONLIN_FRSURF
41    
42    C o ALLOW isotropic scaling of harmonic and bi-harmonic terms when
43    C   using an locally isotropic spherical grid with (dlambda) x (dphi*cos(phi))
44    C *only for use on a lat-lon grid*
45    C   Setting this flag here affects both momentum and tracer equation unless
46    C   it is set/unset again in other header fields (e.g., GAD_OPTIONS.h).
47    C   The definition of the flag is commented to avoid interference with
48    C   such other header files.
49    C   The preferred method is specifying a value for viscAhGrid or viscA4Grid
50    C   in data which is then automatically scaled by the grid size;
51    C   the old method of specifying viscAh/viscA4 and this flag is provided
52    C   for completeness only (and for use with the adjoint).
53    C#define ISOTROPIC_COS_SCALING
54    
55    C o This flag selects the form of COSINE(lat) scaling of bi-harmonic term.
56    C *only for use on a lat-lon grid*
57    C   Has no effect if ISOTROPIC_COS_SCALING is undefined.
58    C   Has no effect on vector invariant momentum equations.
59    C   Setting this flag here affects both momentum and tracer equation unless
60    C   it is set/unset again in other header fields (e.g., GAD_OPTIONS.h).
61    C   The definition of the flag is commented to avoid interference with
62    C   such other header files.
63    C#define COSINEMETH_III
64    
65  C o Use "OLD" UV discretisation near boundaries (*not* recommended)  C o Use "OLD" UV discretisation near boundaries (*not* recommended)
66  C   Note - only works with  #undef NO_SLIP_LATERAL  in calc_mom_rhs.F  C   Note - only works with  #undef NO_SLIP_LATERAL  in calc_mom_rhs.F
67  C          because the old code did not have no-slip BCs  C          because the old code did not have no-slip BCs
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