| 126 | C   instead of the "virtual salt flux" | C   instead of the "virtual salt flux" | 
| 127 | #undef  USE_NATURAL_BCS | #undef  USE_NATURAL_BCS | 
| 128 |  |  | 
| 129 |  | C o Use "Exact Convervation" of fluid in Free-Surface formulation | 
| 130 |  | C   so that d/dt(eta) is exactly equal to - Div.Transport | 
| 131 |  | #undef EXACT_CONSERV | 
| 132 |  |  | 
| 133 |  | C o Allow the use of Non-Linear Free-Surface formulation | 
| 134 |  | C   this implies that surface thickness (hFactors) vary with time | 
| 135 |  | #undef NONLIN_FRSURF | 
| 136 |  |  | 
| 137 | C o Use "OLD" UV discretisation near boundaries (*not* recommended) | C o Use "OLD" UV discretisation near boundaries (*not* recommended) | 
| 138 | 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 | 
| 139 | C          because the old code did not have no-slip BCs | C          because the old code did not have no-slip BCs |