Abstract
A prominent feature of two-dimensional and quasi-geostrophic turbulence is the formation of large-scale coherent structures among the smallscale fluctuations of the vorticity field. This separation-of-scales behavior is a consequence of the conservation of both energy and enstrophy by the dynamics, which results in a net flux of energy toward large scales and a net flux of enstrophy toward small scales. Many flows of this kind, whether free-decaying flows or weakly driven, can therefore be described approximately as coherent, deterministic structures on the large scales and disorganized, random motions on the small scales.
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Turkington, B. (2001). A Statistical Equilibrium Model of Zonal Shears and Embedded Vortices in a Jovian Atmosphere. In: Hodnett, P.F. (eds) IUTAM Symposium on Advances in Mathematical Modelling of Atmosphere and Ocean Dynamics. Fluid Mechanics and Its Applications, vol 61. Springer, Dordrecht. https://doi.org/10.1007/978-94-010-0792-4_37
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DOI: https://doi.org/10.1007/978-94-010-0792-4_37
Publisher Name: Springer, Dordrecht
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