Stochastic resonance mechanism in aerosol index dynamics.
We consider satellite time series concerning the atmospheric aerosol content. We prove that these time series are well described by a stochastic dynamical model. The principal peak in the power spectrum of these signals can be explained by stochastic resonance, linking variable external factors, such as Sun-Earth radiation budget and local insolation, to fluctuations on smaller spatial and temporal scale due to internal weather and antrophic components.
De Martino
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Dipartimento di Fisica-Università degli Studi di Salerno, Via S. Allende, Baronissi (SA), I-84084 Italy. demartino@sa.infn.it
Falanga
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Mona
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