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Outer scale of turbulence and its influence on fluctuations of optical waves


Institute of Atmospheric Optics, Siberian Branch of the Russian Academy of Sciences, Academician Zuev square 1, Tomsk, 634055, Russian Federation

Based on generalizations of numerous measurements and calculations, the influence of the low-frequency part of the atmospheric turbulence spectrum, directly adjacent to the inertial interval, on the statistical characteristics of fluctuations of optical waves propagating in the atmosphere is analyzed. The measured atmospheric turbulence spectra are compared with isotropic models. The outer scale of turbulence in the surface layer of the atmosphere is found to be dependent not only on the height above the underlying surface but also on the type of atmospheric stratification. The influence of the low-frequency part of the atmospheric turbulence spectrum on the phase fluctuations of optical waves propagating both along horizontal paths and obliquely through the entire atmosphere is analyzed.

Fulltext is available at IOP
Keywords: atmosphere, optical waves, turbulence, model, outer scale, propagation, remote sensing
PACS: 42.68.Bz, 47.27.−i, 92.60.hn (all)
DOI: 10.3367/UFNe.2020.10.038849
URL: https://ufn.ru/en/articles/2021/3/c/
Citation: Lukin V P "Outer scale of turbulence and its influence on fluctuations of optical waves" Phys. Usp. 64 280–303 (2021)
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Received: 14th, February 2020, revised: 2nd, October 2020, 14th, October 2020

Оригинал: Лукин В П «Внешний масштаб турбулентности и его влияние на флуктуации оптических волн» УФН 191 292–317 (2021); DOI: 10.3367/UFNr.2020.10.038849

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