Boussinesq non-linear interactions

What is it about?

Intermediate models are used to analyze non-linear interactions of wave and vortical modes in the Boussinesq equations. The intermediate models consider special classes of interactions between modes. QG equations result when inertia-gravity waves are ignores, and involve only non-linear interactions between vortical modes.

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Why is it important?

This work is motivated by the following question: Can we distinguish the wave-vortical interactions largely responsible for formation versus evolution of coherent, balanced structures? A numerical study is implemented to identify what classes of non-linear interactions are responsible for the formation and/or evolution of such coherent structures, cyclone/anticyclone asymmetries, and energy transfer between modes and scales.