Variability of the atmospheric turbulence in the region lake of Baykal

N. N. Botygina; E. A. Kopylov; V. P. Lukin; P. G. Kovadlo; A. Yu. Shihovcev

doi:10.1117/12.2205670

19 November 2015 Variability of the atmospheric turbulence in the region lake of Baykal

N. N. Botygina, E. A. Kopylov, V. P. Lukin, P. G. Kovadlo, A. Yu. Shihovcev

Proceedings Volume 9680, 21st International Symposium Atmospheric and Ocean Optics: Atmospheric Physics; 96806E (2015) https://doi.org/10.1117/12.2205670
Event: XXI International Symposium Atmospheric and Ocean Optics. Atmospheric Physics, 2015, Tomsk, Russian Federation

Abstract

The estimations of the fried parameter according to micrometeorological and optical measurements in the atmospheric surface layer in the area of lake Baikal, Baikal astrophysical Observatory. According to the archive of NCEP/NCAR Reanalysis data obtained vertical distribution of temperature pulsations, and revealed the most pronounced atmospheric layers with high turbulence. A comparison of astronomical conditions vision in winter and in summer. By the registration of optical radiation of the Sun with telescopes, ground-based there is a need to compensate for the effects of atmospheric turbulence. Atmospheric turbulence reduces the angular resolution of the observed objects and distorts the structure of the obtained images. To improve image quality, and ideally closer to angular resolution, limited only by diffraction, it is necessary to implement and use adaptive optics system. The specificity of image correction using adaptive optics is that it is necessary not only to compensate for the random jitter of the image as a whole, but also adjust the geometry of the individual parts of the image. Evaluation of atmospheric radius of coherence (Fried parameter) are of interest not only for site-testing research space, but also are the basis for the efficient operation of adaptive optical systems ¹ .

Citation Download Citation

N. N. Botygina, E. A. Kopylov, V. P. Lukin, P. G. Kovadlo, and A. Yu. Shihovcev "Variability of the atmospheric turbulence in the region lake of Baykal", Proc. SPIE 9680, 21st International Symposium Atmospheric and Ocean Optics: Atmospheric Physics, 96806E (19 November 2015); https://doi.org/10.1117/12.2205670

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