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On the existence of Arnold-stable barotropic flows on a rotating sphere

TitleOn the existence of Arnold-stable barotropic flows on a rotating sphere
Publication TypeArticolo su Rivista peer-reviewed
Year of Publication2003
AuthorsIacono, Roberto
JournalPhysics of Fluids
Volume15
Pagination3879-3882
ISSN10706631
Keywordsatmospheric flow, Barotropic flow, flow stability, mathematical analysis, Spheres, Theorem proving, two-dimensional flow, Vortex flow, vorticity
Abstract

Application of two well-known finite-amplitude stability conditions by Arnold to two-dimensional flows on a rotating sphere is discussed, in the context of the barotropic vorticity equation. Attention is focused on zonal basic flows with nonmonotonic profiles of absolute vorticity, since for such flows stability would not descend from the Rayleigh-Kuo inflection point theorem. It is shown that global flows of this kind cannot satisfy either of Arnold's stability conditions. © 2003 American Institute of Physics.

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URLhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-0348146488&doi=10.1063%2f1.1624607&partnerID=40&md5=bf15b7e88d88dd4dff18100a7d144ec4
DOI10.1063/1.1624607
Citation KeyIacono20033879