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VOLUME 53 | ISSUE 12 | PAGE 628
Nonlocal interaction with zonal flows in the turbulence of drift and Rossby waves
Theory of nonlocal weak turbulence of drift and Rossby waves1,2 is extended to take into account the spectrum redistribution over scales due to nonlocal interaction with zonal flows. Corresponding generalization of the equation for turbulent spectrum evolution is obtained. According to this equation, the nonlocal interaction with zonal flows leads to a diffusion along mussel-like curves. These curves appear to coincide with the contours of spectral density of the new invariant found in Ref. 5.

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