Astroclimate parameters of the surface layer in the Sayan Solar Observatory

V. V. Nosov; V. M. Grigoriev; P. G. Kovadlo; V. P. Lukin; A. V. Torgaev

doi:10.1117/12.823808

11 February 2009 Astroclimate parameters of the surface layer in the Sayan Solar Observatory

V. V. Nosov, V. M. Grigoriev, P. G. Kovadlo, V. P. Lukin, A. V. Torgaev

Proceedings Volume 7296, Fifteenth International Symposium on Atmospheric and Ocean Optics/Atmospheric Physics; 72960D (2009) https://doi.org/10.1117/12.823808
Event: Fifteenth International Symposium on Atmospheric and Ocean Optics/Atmospheric Physics, 2008, Krasnoyarsk, Russian Federation

Abstract

High-altitude profiles of the parameters of atmospheric air currents in the lower surface layer were measured with the use of a meteorological mast of 32 m in height. A mobile ultrasonic meteosystem was used for the measurements. The theory of similarity for turbulence in anisotropic boundary layer has been verified. The measured vertical profiles of main turbulence parameters have an oscillating character. High-altitude profiles of vertical outer scale are given, reconstructed from measurements by two independent techniques. An equation for the outer turbulence scale is given, determined by the departure from the 2/3-law in the structure temperature function. This scale depends on temperature dispersion and structural characteristic of temperature fluctuations. A satisfactory agreement between values of such outer scale and those of the Tatarskii outer scale is observed.

Citation Download Citation

V. V. Nosov, V. M. Grigoriev, P. G. Kovadlo, V. P. Lukin, and A. V. Torgaev "Astroclimate parameters of the surface layer in the Sayan Solar Observatory", Proc. SPIE 7296, Fifteenth International Symposium on Atmospheric and Ocean Optics/Atmospheric Physics, 72960D (11 February 2009); https://doi.org/10.1117/12.823808

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