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Nonlinear Dynamics of Networks
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Nonlinear Dynamics of Networks
CSIC Building (#406),
Seminar Room 4122.
Directions: home.cscamm.umd.edu/directions
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The Backbone of the Climate Network
Jürgen Kurths
University of Potsdam
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Abstract:
We consider an inverse problem: Is there a backbone-like structure underlying the climate system? For this we propose a method to reconstruct and analyze a complex network from data generated by a spatio-temporal dynamical system. This technique is then applied to reanalysis and model surface air temperature data. Parameters of this network, as betweenness centrality, uncover relations to global circulation patterns in oceans and atmosphere. We especially study the role of hubs in the flows of energy and matter in the climate system. The global scale view on climate networks offers promising new perspectives for detecting dynamical structures based on nonlinear physical processes in the climate system. Joint work with J. Donges, N. Marwan, and Y. Zou. Potsdam Institute for Climate Impact Research and Humboldt University Berlin, Institute of Physics, Germany References Arenas, A., A. Diaz-Guilera, J. Kurths, Y. Moreno, and C. Zhou, Phys. Reports 2008, 469, 93. Donges, J., Y. Zou, N. Marwan, and J. Kurths, Europ. Phys. J. ST 2009, 174, 157-179. Donges, J., Y. Zou, N. Marwan, and J. Kurths, Europhys. Lett. 2009, 87, 48007. Nawrath, J. et al., Phys. Rev. Lett. 2010, 104, 038701. Donner, R., Y. Zou, J. Donges, N. Marwan, and J. Kurths, Phys. Rev. E 2010, 81, 015101(R ). |
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