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Nonlinear Processes in Geophysics An interactive open-access journal of the European Geosciences Union
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Volume 19, issue 3
Nonlin. Processes Geophys., 19, 315-322, 2012
https://doi.org/10.5194/npg-19-315-2012
© Author(s) 2012. This work is distributed under
the Creative Commons Attribution 3.0 License.
Nonlin. Processes Geophys., 19, 315-322, 2012
https://doi.org/10.5194/npg-19-315-2012
© Author(s) 2012. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 08 May 2012

Research article | 08 May 2012

Oscillating forcings and new regimes in the Lorenz system: a four-lobe attractor

V. Pelino1, F. Maimone1, and A. Pasini2 V. Pelino et al.
  • 1Italian Air Force, CNMCA, Pratica di Mare (Rome), Italy
  • 2CNR, Institute of Atmospheric Pollution Research, Rome, Italy

Abstract. It has been shown that forced Lorenz models generally maintain their two-lobe structure, just giving rise to changes in the occurrence of their regimes. Here, using the richness of a unified formalism for Kolmogorov-Lorenz systems, we show that introducing oscillating forcings can lead to the birth of new regimes and to a four-lobe attractor. Analogies within a climate dynamics framework are mentioned.

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