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Statistical state dynamics of weak jets in barotropic beta-plane turbulence

Bakas, Nikolaos A.; Constantinou, Navid; Ioannou, Petros J.


Zonal jets in a barotropic setup emerge out of homogeneous turbulence through a flow-forming instability of the homogeneous turbulent state (zonostrophic instability), which occurs as the turbulence intensity increases. This has been demonstrated using the statistical state dynamics (SSD) framework with a closure at second order. Furthermore, it was shown that for small supercriticality the flow-forming instability follows Ginzburg–Landau (G–L) dynamics. Here, the SSD framework is used to study...[Show more]

CollectionsANU Research Publications
Date published: 2019-03-19
Type: Journal article
Source: Journals of the Atmospheric Sciences
DOI: 10.1175/JAS-D-18-0148.1
Access Rights: Open Access


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