Validity of Kolmogorov turbulence at higher elevations

Arkadi Zilberman; Ephim Golbraikh; Norman S. Kopeika

doi:10.1117/12.532388

16 June 2004 Validity of Kolmogorov turbulence at higher elevations

Arkadi Zilberman, Ephim Golbraikh, Norman S. Kopeika

Proceedings Volume 5338, Free-Space Laser Communication Technologies XVI; (2004) https://doi.org/10.1117/12.532388
Event: Lasers and Applications in Science and Engineering, 2004, San Jose, Ca, United States

Abstract

Most models of optical radiation propagation through turbulent media are based on the assumption that turbulence is of Kolmogorov's type. It is assumed, also, that this type of turbulence corresponds to fluctuations of passive scalar field (temperature, aerosol, etc.). In the present report we demonstrate that in a real atmosphere (above the surface layer) the turbulent field of passive scalar fluctuations can differ from Kolmogorov’s model. From the spectrum of the intensity fluctuation of LIDAR signals scattered by aerosol concentration inhomogeneities, the behavior of atmospheric turbulence spectrum (power law exponent γ) is estimated. As follows from the experimental data the power law exponent of the turbulent spectra should be different from the case of purely Kolmogorov's (-5/3).

Citation Download Citation

Arkadi Zilberman, Ephim Golbraikh, and Norman S. Kopeika "Validity of Kolmogorov turbulence at higher elevations", Proc. SPIE 5338, Free-Space Laser Communication Technologies XVI, (16 June 2004); https://doi.org/10.1117/12.532388

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