Oceanic component
The oceanic component is a shallow-water active oceanic layer superimposed on a deep ocean layer at rest. The dynamics is given by the reduced-gravity quasi-geostrophic vorticity equation.
Therefore, the equation of motion for the streamfunction \(\psi_\text{o}\) of the ocean layer reads [OC-Pie11] [OC-DCDV16]
\(L_\text{R} = \sqrt{g' \, h }/ f_0\) (LR
) is the reduced Rossby deformation radius
where \(g'\) (gp
) is the reduced gravity, \(h\) is the depth of the layer (h
),
and \(f_0\) is the Coriolis parameter (f0
).
\(r\) (r
) is the friction at the bottom of the active ocean layer.
References
- OC-DCDV16
L. De Cruz, J. Demaeyer, and S. Vannitsem. The Modular Arbitrary-Order Ocean-Atmosphere Model: MAOOAM v1.0. Geoscientific Model Development, 9(8):2793–2808, 2016. URL: https://www.geosci-model-dev.net/9/2793/2016/.
- OC-Pie11
S. Pierini. Low-frequency variability, coherence resonance, and phase selection in a low-order model of the wind-driven ocean circulation. Journal of Physical Oceanography, 41(9):1585–1604, 2011. URL: https://journals.ametsoc.org/doi/full/10.1175/JPO-D-10-05018.1.