Representation of the synoptic spectra of atmospheric turbulence by sums of spectra of coherent structures

Turbulence, Atmosphere and Climate Dynamics

生态环境科学

Nosov, V.V.^1 ; Lukin, V.P.^1 ; Nosov, E.V.^1 ; Torgaev, A.V.^1

V.E. Zuev Institute of Atmospheric Optics SB RAS, Academician Zuev square 1, Tomsk

634021, Russia^1

关键词: Astrophysical observatory;    Coherent structure;    Outer scale;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/231/1/012040/pdf
DOI  :  10.1088/1755-1315/231/1/012040

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

It is shown that the known experimental synoptic spectra of the atmospheric turbulence (spectrum of Van der Hoven, 1957; spectrum of Kolesnikova, Monin, 1965) represent the sum of the solitary spectra of coherent structures with various sizes (with variety outer scales). The spectrums registered by us near to a mirror of the Baikal Solar Vacuum Telescope (BSVT) of the Baikal astrophysical observatory and in a under dome room of the Big Alt-Azimuth Telescope (BTA) of the Special astrophysical observatory are presented too. Apparently, the good coincidence of theoretical spectrums with experimental data (from both parties from a micrometeorological maximum) is observed. This spectrum well approximates the experimental spectrums not only in the field of a micrometeorological interval of frequencies, but also on frequencies of lower, than a micrometeorological maximum where the observational spectrums have decrease.