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Astroclimate Studies in the Special Astrophysical Observatory of the Russian Academy of Sciences

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Abstract

The results of measurements of astroclimate characteristics in the Special Astrophysical Observatory of the Russian Academy of Sciences (SAO, North Caucasus) in 2012 and 2016 are presented. The experimental results are obtained from long-term observation series of the day and night astroclimate in the SAO. The presence of non-Kolmogorov coherent turbulence was detected over the SAO site, in which the quality of telescope images improved. The effect of the underlying surface type and wind direction on the conditions for coherent turbulence origination is explained by the mountainous terrain and nonuniform heating of the underlying surface. The airflow velocity distribution inside the dome room of the Big Telescope Alt-azimuth (BTA) was experimentally studied. The air-mass trajectories inside the BTA dome room were numerically simulated to analyze the effect of the temperature regime and construction geometry. The solutions of the boundary problem confirm the existence of an experimentally detected vortex structure with a vertical rotation axis. The causes for its generation are the temperature gradients of the dome surfaces.

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ACKNOWLEDGMENTS

The authors would like to thank Stéphane Popinet for his significant unselfish contribution to the science in the form of free software developed [15], which allowed us to focus on the study of hydrodynamic laws.

We are grateful to researchers of BTA SAO RAS D.S. Milenko, N.N. Shinkarenko, and V.M. Kravchenko for their help in the scientific experiments in BTA.

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Authors and Affiliations

  1. V.E. Zuev Institute of Atmospheric Optics, Siberian Branch, Russian Academy of Sciences, 634055, Tomsk, Russia

    V. V. Nosov, V. P. Lukin, E. V. Nosov & A. V. Torgaev

  2. Special Astrophysical Observatory of the Russian Academy of Science, 369167, Nizhni Arkhyz, Karachay-Cherkessia, Russia

    V. L. Afanas’ev, Yu. U. Balega, V. V. Vlasyuk, V. E. Panchuk & G. V. Yakopov

Authors
  1. V. V. Nosov
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  2. V. P. Lukin
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  3. E. V. Nosov
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  4. A. V. Torgaev
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  5. V. L. Afanas’ev
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  6. Yu. U. Balega
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  7. V. V. Vlasyuk
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  8. V. E. Panchuk
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  9. G. V. Yakopov
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Corresponding authors

Correspondence to V. P. Lukin or E. V. Nosov.

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Translated by O. Ponomareva

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Nosov, V.V., Lukin, V.P., Nosov, E.V. et al. Astroclimate Studies in the Special Astrophysical Observatory of the Russian Academy of Sciences. Atmos Ocean Opt 32, 8–18 (2019). https://doi.org/10.1134/S1024856019010111

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  • DOI: https://doi.org/10.1134/S1024856019010111

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