2005/06/30 by Arturo Berrones
Physics and Astronomy · #physics.ao-ph #cond-mat.other #physics.data-an
published as Fluctuation and Noise Letters, Vol. 5, No. 3 (2005) L365 -- L374 · 14 pages, 7 figures, final version
arxiv created 2005/08/30 · arxiv updated 2009/12/01
The effect caused by the presence of a number of distinct time scales in a simple stochastic model for the Earth's atmosphere temperature fluctuations is studied. The model is described by a dissipative dynamics consisting of a set of coupled stochastic evolution equations. The system shows features that resemble recent observations. In contrast to other approaches, like autoregressive models, the fluctuations of the atmosphere's temperature depend on parameters with clear physical meaning. A reduced version of the model is constructed and its temporal autocovariance function is explicitly written.