Options

This wikipage includes all ROMS CPP options in alphabetic order. A single long page is built to facilitate printing. Each option has a unique anchor tag to facilitate linking from any wikipage.

S

SOLVE3D

Option to activate/deactivate 3D model configuration. If activated, ROMS solves 3D (baroclinic) primitive equations. If deactivated, ROMS solves vertically-integrated, shallow water (barotropic) equations.

U

UV_ADV

Option to activate/deactivate horizontal and vertical advection of momentum. If no additional options are specified, the default is to discretize the horizontal momentum with a third-order upstream bias advection scheme with velocity dependent hyper-viscosity and the vertical momentum with a fourth-order, centered differences scheme. Since there is some implicit viscosity associated with the default discretization, the user may avoid adding an explicity vicosity to the solution to suppress excisive smoothing.

routine = step2d.F, rhs3d.F

UV_COR

Option to activate/deactivate Coriolis acceleration term in momentum equations.

routine = step2d.F, rhs3d.F

UV_C2ADVECTION

Option to use second-order, centered, finite differences in advection of momentum.

parent = UV_ADV

conflit = UV_C4ADVECTION

UV_C4ADVECTION

Option to use fourth-order, centered, finite differences in advection of momentum.

parent = UV_ADV

conflit = UV_C2ADVECTION

UV_SADVECTION

Option to use conservative, parabolic splines discretization of momentum vertical advection. This scheme requires high vertical resolution so it is recommended to use this option in shallow, coastal applications.

parent = UV_ADV

conflit = UV_C2ADVECTION, UV_C4ADVECTION

UV_VIS2

Option to activate/deactivate horizontal, harmonic viscosity of momentum. The hamonic mixing of momentum can be applied along terrain-following or geopotential levels. In ROMS, the viscosity is derived from the horizontal divergence of the deviatory stress tensor (Wajsowicz, 1993).

parameter = visc2(ng), visc2_p(:,:), visc2_r(:,:)

related = MIX_S_UV, MIX_GEO_UV, VISC_GRID

routine = uv3dmix2_s.h, uv3dmix2_geo.h, uv3dmix.F

UV_VIS4

Option to activate/deactivate horizontal, biharmonic viscosity of momentum. The bihamonic mixing of momentum can be applied along terrain-following or geopotential levels. In ROMS, the viscosity is derived from the horizontal divergence of the deviatory stress tensor (Wajsowicz, 1993).

parameter = visc4(ng), visc4_p(:,:), visc4_r(:,:)

related = MIX_S_UV, MIX_GEO_UV, VISC_GRID

routine = uv3dmix4_s.h, uv3dmix4_geo.h, uv3dmix.F

UV_LOGDRAG

Option to activate/deactivate logarithmic bottom friction of momentum.

parameter = Zob(ng)

related = SOLVE3D

confict = BBL_MODEL, UV_LDRAG, UV_QDRAG

routine = set_vbc.F

UV_LDRAG

Option to activate/deactivate linear bottom friction of momentum.

parameter = rdrg(ng)

confict = BBL_MODEL, UV_LOGDRAG, UV_QDRAG

routine = set_vbc.F

UV_PSOURCE

Option to activate/deactivate point sources/sinks of momentum. This option is used to specify the mass transport in river runoff.

parameter = Dsrc(1:Nsrc), Qsrc(1:Nsrc,k)

related = ANA_PSOURCE, TS_PSOURCE

confict = BBL_MODEL, UV_LOGDRAG, UV_QDRAG

routine = step2d.F, step3d_uv.F

UV_QDRAG

Option to activate/deactivate quadratic bottom friction of momentum.

parameter = rdrg2(ng)

confict = BBL_MODEL, UV_LDRAG, UV_LOGDRAG

routine = set_vbc.F