Inertia–gravity waves generated by near balanced flow in 2-layer shallow water turbulence on the β-plane

Wirth, A.

Using a fine resolution numerical model (4000 2 × 2 grid-points) of the two-layer shallow-water equations of the mid-latitude β-plane dynamics, it is shown that there is no sudden breakdown of balance in the turbulent enstrophy cascade but a faint and continuous emission of inertia–gravity waves. The wave energy accumulates in the equator-ward region of the domain due to the Coriolis parameter depending on the latitude and dispersion relation of inertia–gravity waves.

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Wirth, A.: Inertia–gravity waves generated by near balanced flow in 2-layer shallow water turbulence on the β-plane. 2013. Copernicus Publications.

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Rechteinhaber: A. Wirth

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