.. tabularcolumns:: |\Y{.4}|L|L|
| CPP Flag Name | Default | Description |
|---|---|---|
| :varlink:`ALLOW_SMAG_3D` | #undef | allow isotropic 3D Smagorinsky viscosity (:filelink:`MOM_COMMON_OPTIONS.h <pkg/mom_common/MOM_COMMON_OPTIONS.h>`) |
| :varlink:`ALLOW_3D_VISCAH` | #undef | allow full 3D specification of horizontal Laplacian viscosity (:filelink:`MOM_COMMON_OPTIONS.h <pkg/mom_common/MOM_COMMON_OPTIONS.h>`) |
| :varlink:`ALLOW_3D_VISCA4` | #undef | allow full 3D specification of horizontal biharmonic viscosity (:filelink:`MOM_COMMON_OPTIONS.h <pkg/mom_common/MOM_COMMON_OPTIONS.h>`) |
| :varlink:`MOM_BOUNDARY_CONSERVE` | #undef | conserve u,v momentum next to a step (vertical plane) or a coastline edge (horizontal plane) (:filelink:`MOM_FLUXFORM_OPTIONS.h <pkg/mom_fluxform/MOM_FLUXFORM_OPTIONS.h>`) |