Avalanches, breathers, and flow reversal in a continuous Lorenz-96 modelBlender, R., Wouters, J. ORCID: https://orcid.org/0000-0001-5418-7657 and Lucarini, V. ORCID: https://orcid.org/0000-0001-9392-1471 (2013) Avalanches, breathers, and flow reversal in a continuous Lorenz-96 model. Physical Review E, 88 (1). 013201. ISSN 1550-2376
It is advisable to refer to the publisher's version if you intend to cite from this work. See Guidance on citing. To link to this item DOI: 10.1103/PhysRevE.88.013201 Abstract/SummaryFor the discrete model suggested by Lorenz in 1996, a one-dimensional long-wave approximation with nonlinear excitation and diffusion is derived. The model is energy conserving but non-Hamiltonian. In a low-order truncation, weak external forcing of the zonal mean flow induces avalanchelike breather solutions which cause reversal of the mean flow by a wave-mean flow interaction. The mechanism is an outburst-recharge process similar to avalanches in a sandpile model.
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