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http://dspace.mediu.edu.my:8181/xmlui/handle/10261/3834| Title: | Resonant phenomena in extended chaotic systems subject to external noise: The Lorenz'96 model case |
| Keywords: | Chaotic dynamics Statistical mechanics Atmospheric and oceanic physics |
| Publisher: | Elsevier |
| Description: | arXiv:0706.1672v1 We investigate the effects of a time-correlated noise on an extended chaotic system. The chosen model is the Lorenz'96, a kind of "toy" model used for climate studies. Through the analysis of the system's time evolution and its time and space correlations, we have obtained numerical evidence for two stochastic resonance-like behavior. Such behavior is seen when both, the usual and a generalized signal-to-noise ratio function are depicted as a function of the external noise intensity or the system size. The underlying mechanism seems to be associated to a "noise-induced chaos reduction". The possible relevance of these and other findings for an "optimal" climate prediction are discussed. We acknowledge financial support from MEC, Spain, through Grant No. CGL2004-02652/CLI. JAR thanks the MEC, Spain, for the award of a Juan de la Cierva fellowship. HSW thanks to the European Commission for the award of a Marie Curie Chair during part of the development of this work. Peer reviewed |
| URI: | http://dspace.mediu.edu.my:8181/xmlui/handle/10261/3834 |
| Other Identifiers: | Physica A: Statistical Mechanics and its Applications 387(13): 3103-3110 (2008) 0378-4371 http://hdl.handle.net/10261/3834 10.1016/j.physa.2008.01.110 |
| Appears in Collections: | Digital Csic |
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