arxiv: 1002.3276 · v1 · submitted 2010-02-17 · ❄️ cond-mat.stat-mech · physics.ao-ph

Universal fluctuations in tropospheric radar measurements

Andrea Barucci (1) , Giovanni Macaluso (1) , Daniele Mecatti (1) , Linhsia Noferini (1) , Duccio Fanelli (2) , Angelo Facchini (3) , Massimo Materassi (4) , Massimiliano Pieraccini (1)

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Carlo Atzeni (1). ((1) Department of Electronics Telecommunications University of Florence Firenze Italy EU; (2) Dipartimento di Energetica S.Stecco University of Florence ans INFN EU; (3) Department of Information Engineering Center for the Study of Complex Systems University of Siena Siena EU; (4) Istituto dei Sistemi Complessi ISC-CNR Sesto Fiorentino EU.)

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classification ❄️ cond-mat.stat-mech physics.ao-ph

keywords radarfluctuationswinddatadistributionsparameterprofilesstatistics

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Radar data collected at an experimental facility arranged on purpose suggest that the footprint of atmospheric turbulence might be encoded in the radar signal statistics. Radar data probability distributions are calculated and nicely fitted by a one parameter family of generalized Gumbel (GG) distributions, G(a). A relation between the wind strength and the measured shape parameter "a" is obtained. Strong wind fluctuations return pronounced asymmetric leptokurtic profiles, while Gaussian profiles are eventually recovered as the wind fluctuations decrease. Besides stressing the crucial impact of air turbulence for radar applications, we also confirm the adequacy of G(a) statistics for highly correlated complex systems.

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Universal fluctuations in tropospheric radar measurements

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