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AN EXAMPLE OF 2-MODE INTERACTION IN A 3-LAYER MODEL OF BAROCLINIC INSTABILITY

Abstract:
A three-layer model of baroclinic instability on a β-plane with Ekman layers on the interfaces and upper and lower bounding surfaces, is shown to support 2 unstable modes, having the same wavenumber but different phase speeds, on the stability boundary, when the basic state comprises non-linear shear and density profiles. Evolution equations are derived using multiple scales and are shown to transform to the canonical equations for a co-dimension 2 double Hopf bifurcation. The implications of this are discussed. © 1982.
Publication status:
Published

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Authors


BRINDLEY, J More by this author
Journal:
PHYSICS LETTERS A
Volume:
91
Issue:
5
Pages:
226-230
Publication date:
1982
DOI:
ISSN:
0375-9601
URN:
uuid:0fa72b2a-6eff-401a-a9b0-459c39b5ac0a
Source identifiers:
156
Local pid:
pubs:156
Language:
English

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