Lidar sounding of the optical parameter of atmospheric turbulence
- Authors: Gurvich A.S.1, Fortus M.I.1
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Affiliations:
- Obukhov Institute of Atmospheric Physics
- Issue: Vol 52, No 2 (2016)
- Pages: 165-175
- Section: Article
- URL: https://journals.rcsi.science/0001-4338/article/view/148421
- DOI: https://doi.org/10.1134/S0001433816020043
- ID: 148421
Cite item
Abstract
The operation of a lidar intended for clear air turbulence (CAT) positioning on the basis of the backscatter enhancement (BSE) effect is analyzed using a turbulence model with a power-law spectrum. Systematic distortions occurring due to a need to regularize the lidar positioning problem solution are estimated. It is shown that the effect of molecular viscosity of air on the positioning result can be neglected if the wave parameter, which characterizes the diffraction manifestation, is higher than 3. This corresponds to sounding ranges of more than 1 km for optical or UV lidars. The analysis results show that the BSE lidar positioning accuracy weakly depends on the exponent in the turbulence spectrum in regions of severe turbulence. The results can justify a physical experiment for the design of an aircraft system for the lidar detection of CAT regions ahead of the flight course.
Keywords
About the authors
A. S. Gurvich
Obukhov Institute of Atmospheric Physics
Author for correspondence.
Email: gurvich@ifaran.ru
Russian Federation, Pyzhevskii per. 3, Moscow, 119017
M. I. Fortus
Obukhov Institute of Atmospheric Physics
Email: gurvich@ifaran.ru
Russian Federation, Pyzhevskii per. 3, Moscow, 119017