| 57 | C   (3-D generalisation of oceanic real-fresh water flux) | C   (3-D generalisation of oceanic real-fresh water flux) | 
| 58 | #undef ALLOW_ADDFLUID | #undef ALLOW_ADDFLUID | 
| 59 |  |  | 
| 60 |  | C o Choices for implicit solver routines solve_*diagonal.F | 
| 61 |  | C   The following has low memory footprint, but not suitable for AD | 
| 62 |  | #undef SOLVE_DIAGONAL_LOWMEMORY | 
| 63 |  | C   The following one suitable for AD but does not vectorize | 
| 64 |  | #undef SOLVE_DIAGONAL_KINNER | 
| 65 |  |  | 
| 66 | C o ALLOW isotropic scaling of harmonic and bi-harmonic terms when | C o ALLOW isotropic scaling of harmonic and bi-harmonic terms when | 
| 67 | C   using an locally isotropic spherical grid with (dlambda) x (dphi*cos(phi)) | C   using an locally isotropic spherical grid with (dlambda) x (dphi*cos(phi)) | 
| 68 | C *only for use on a lat-lon grid* | C *only for use on a lat-lon grid* |