Lateral Parameterizations¶
The following sub-grid scale parameterizations generally yield fluxes that act in the lateral direction.
Lateral viscosity¶
Laplacian and bi-harmonic viscosities with linear and Smagorinsky options are implemented in MOM_hor_visc.
Gent-McWilliams/TEM/isopycnal height diffusion¶
Lagrangian mean eddy mass transport is parameterized following [26], in MOM_thickness_diffuse.
The diffusivity coefficients are calculated in MOM_lateral_mixing_coeffs and MOM_thickness_diffuse and includes constants and the [84] scaling.
A model of sub-grid scale Mesoscale Eddy Kinetic Energy (MEKE) is implement in MOM_MEKE and the associated diffusivity added in MOM_thickness_diffuse. See [46] and [52].
Backscatter¶
A parameterization of the upscale unresolved cascade utilizes MOM_MEKE and negative Laplacian viscosity in MOM_hor_visc.
Mixed layer restratification by sub-mesoscale eddies¶
Mixed layer restratification from [25] and [24] is implemented in MOM_mixed_layer_restrat, which now also contains the mixed layer restratication comes from :cite: Bodner2023.
Interface filtering¶
For layer mode, one can filter the interface thicknesses:
Lateral diffusion¶
See Horizontal Diffusion.
See also The resolution function
Tidal forcing¶
Astronomical tidal forcings and self-attraction and loading are implement in
The Love numbers are stored internally in MOM_load_love_numbers:
while the self attraction and loading is computed in MOM_self_attr_load:
The self attraction and loading needs spherical harmonics, computed in MOM_spherical_harmonics:
Tides can also be added via an open boundary tidal specification, see OBC wiki page.