title: Stochastic resonance mechanism in aerosol index dynamics.
abstract: 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.
authors.affiliation: Dipartimento di Fisica-Università degli Studi di Salerno, Via S. Allende, Baronissi (SA), I-84084 Italy. demartino@sa.infn.it
authors.forename: S
authors.initials: S
authors.lastname: De Martino
authors.forename: M
authors.initials: M
authors.lastname: Falanga
authors.forename: L
authors.initials: L
authors.lastname: Mona