3 papers
physics.flu-dyn2026
Frequency spreading of internal wave energy by balanced flows in two dimensions
Nicholas DeFilippis, Oliver Bühler, K. Shafer Smith
Interactions between inertia-gravity waves and balanced flows lead to a spectral diffusion of wave action. Prior work has established that this diffusion is weak across constant fr…
physics.flu-dyn2026
Wave turbulence of inertia--gravity waves: a theory for the oceanic spectrum
Michal Shavit, Oliver Bühler, Jalal Shatah
We present a derivation using kinetic wave theory of the two-dimensional empirical Garrett--Munk spectrum for ocean internal waves, valid at all frequencies including near-inertial…
physics.flu-dyn2025
Next-order balanced model captures submesoscale physics and statistics
Ryan Shìjié Dù, K. Shafer Smith, Oliver Bühler
Using nonlinear simulations in two settings, we demonstrate that QG, a potential-vorticity based next-order-in-Rossby balanced model, captures several aspects of ocea…