Inertia-gravity wave dissipation and form drag. II. Nontraditional effects
Abdulah, D.; Kang, W.; Rekier, J. (2026). Inertia-gravity wave dissipation and form drag. II. Nontraditional effects. Physical Review Fluids 11(5): 053802. https://dx.doi.org/10.1103/qy29-8r2t
In: Physical Review Fluids. American Physical Society: College Park. ISSN 2469-990X, more
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| Author keywords |
tidal conversion;subsurface oceans;attractors;libration;stress;plane;tides |
| Authors | | Top |
- Abdulah, D.
- Kang, W.
- Rekier, J., more
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| Abstract |
The problem of inertia-gravity waves excited by harmonic flow over topography is often simplified by the traditional approximation, which neglects the horizontal component of the Coriolis force. We consider waves forced by a two-dimensional tidal potential in a finite-depth domain, considering the full (nontraditional) Coriolis force, nonhydrostatic effects, and contribution from higher-order harmonics. We provide formulas for the vertical velocity, form drag, and conversion rate of inertia-gravity waves. Overall, including the nontraditional Coriolis force enhances the conversion rate and torque of inertia-gravity waves and extends the range of latitudes that can support them. Inertia-gravity waves under nontraditional rotation exhibit weaker suppression of the conversion rate in the low-depth limit, and weaker nonacoustic effects in the rapidly rotating limit at low latitudes. |
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