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Open AccessArticle

Scaling Properties of Atmospheric Wind Speed in Mesoscale Range

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National Research Council—Institute of Atmospheric Pollution Research c/o University of Calabria, 87036 Rende, Italy
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National Institute for Astrophysics—Astrophysical Observatory of Torino Via Osservatorio 20, 10025 Pino Torinese, Italy
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Earth Observation Science, Department of Physics and Astronomy, University of Leicester, University Road, Leicester LE1 7RH, UK
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Escuela Politécnica Nacional, Departamento de Física Ladron de Guevera E11-253, Quito 170517, Ecuador
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National Research Council—Nanotec Ponte P. Bucci Cubo 31C, 87036 Rende, Italy
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National Research Council—Institute of Atmospheric Pollution Research, Area della Ricerca di Roma 1, 00015 Rome, Italy
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Author to whom correspondence should be addressed.
Atmosphere 2019, 10(10), 611; https://doi.org/10.3390/atmos10100611
Received: 13 August 2019 / Revised: 28 September 2019 / Accepted: 30 September 2019 / Published: 10 October 2019
The scaling properties of turbulent flows are well established in the inertial sub-range. However, those of the synoptic-scale motions are less known, also because of the difficult analysis of data presenting nonstationary and periodic features. Extensive analysis of experimental wind speed data, collected at the Mauna Loa Observatory of Hawaii, is performed using different methods. Empirical Mode Decomposition, interoccurrence times statistics, and arbitrary-order Hilbert spectral analysis allow to eliminate effects of large-scale modulations, and provide scaling properties of the field fluctuations (Hurst exponent, interoccurrence distribution, and intermittency correction). The obtained results suggest that the mesoscale wind dynamics owns features which are typical of the inertial sub-range turbulence, thus extending the validity of the turbulent cascade phenomenology to scales larger than observed before. View Full-Text
Keywords: scaling laws; nonlinear dynamics; Hurst exponent; turbulence spectra; turbulent boundary layer scaling laws; nonlinear dynamics; Hurst exponent; turbulence spectra; turbulent boundary layer
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Carbone, F.; Telloni, D.; Bruno, A.G.; Hedgecock, I.M.; De Simone, F.; Sprovieri, F.; Sorriso-Valvo, L.; Pirrone, N. Scaling Properties of Atmospheric Wind Speed in Mesoscale Range. Atmosphere 2019, 10, 611.

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