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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 5
Nonlin. Processes Geophys., 19, 559-568, 2012
https://doi.org/10.5194/npg-19-559-2012
© Author(s) 2012. This work is distributed under
the Creative Commons Attribution 3.0 License.
Nonlin. Processes Geophys., 19, 559-568, 2012
https://doi.org/10.5194/npg-19-559-2012
© Author(s) 2012. This work is distributed under
the Creative Commons Attribution 3.0 License.

Review article 01 Oct 2012

Review article | 01 Oct 2012

Review article "On the origins of decadal climate variability: a network perspective"

A. A. Tsonis and K. L. Swanson A. A. Tsonis and K. L. Swanson
  • Atmospheric Sciences Group, Department of Mathematical Sciences, University of Wisconsin-Milwaukee, Milwaukee, WI 53201-0413, USA

Abstract. This review is a synthesis of work spanning the last 25 yr. It is largely based on the use of climate networks to identify climate subsystems/major modes and to subsequently study how their collective behavior explains decadal variability. The central point is that a network of coupled nonlinear subsystems may at times begin to synchronize. If during synchronization the coupling between the subsystems increases, the synchronous state may, at some coupling strength threshold, be destroyed shifting climate to a new regime. This climate shift manifests itself as a change in global temperature trend. This mechanism, which is consistent with the theory of synchronized chaos, appears to be a very robust mechanism of the climate system. It is found in the instrumental records, in forced and unforced climate simulations, as well as in proxy records spanning several centuries.

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