Bifurcations and instabilities in rotating, two-layer fluids: II. β-plane
Bifurcations and instabilities in rotating, two-layer fluids: II. β-plane
复制标题
旋转两层流体的分叉和不稳定性:β 平面。
DOI:
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发表时间:
2001
期刊:
影响因子:
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通讯作者:
P. L. Read
中科院分区:
文献类型:
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作者:
A. F. Lovegrove;I. M. Moroz;P. L. Read
In this paper, we show that the behaviour of weakly nonlinear waves in a 2-layer model of baroclinic instability on an f-plane with varying viscosity is determined by a sin- gle, degenerate codimension three bifurcation. In the pro- cess, we show how previous studies, using the method of multiple scales to derive evolution equations for the slowly varying amplitude of the growing wave, arise as special lim- its of the general evolution description. A companion study will extend the results to a β-plane.