Local dimension and finite time prediction in spatiotemporal chaotic systems

Details Local dimension and finite time prediction in spatiotemporal chaotic systems Local dimension and finite time prediction in spatiotemporal chaotic systems

2002-12-06

arxiv.org/abs/nlin/0212015v1

Phys. Rev. E 67, 066204 (2003)

Nonlinear Sciences

Chaotic Dynamics

5 pagers, 7 EPS figures

Scientific paper

10.1103/PhysRevE.67.066204

We show how a recently introduced statistics [Patil et al, Phys. Rev. Lett. 81 5878 (2001)] provides a direct relationship between dimension and predictability in spatiotemporal chaotic systems. Regions of low dimension are identified as having high predictability and vice-versa. This conclusion is reached by using methods from dynamical systems theory and Bayesian modelling. We emphasize in this work the consequences for short time forecasting and examine the relevance for factor analysis. Although we concentrate on coupled map lattices and coupled nonlinear oscillators for convenience, any other spatially distributed system could be used instead, such as turbulent fluid flows.

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