Systems of intensive vertical vortices in turbulent atmosphere

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Authors

Alexander Bershadskii

Abstract

At certain conditions a system of well-separated quasi-point vortices can appear in two-dimensional turbulence. Such system contains main part (almost entire) of the flow enstrophy (mean squared vorticity). Spectral properties of the two-dimensional turbulence in the presence of the system of the quasi-point vortices have been studied using notion of the distributed chaos. Results of direct numerical simulations of decaying turbulence, of turbulence with small-scale forcing, of quasi-geostrophic turbulence with thermal damping and of turbulent thermal convection on a sphere as well as results of the Global Atmospheric Sampling Program (GASP, using commercial aircraft) measurements in the tropospheric and stratospheric turbulence over mountainous terrain (the small-scale forcing) have been used for this purpose.

DOI

https://doi.org/10.31223/osf.io/25qe9

Subjects

Atmospheric Sciences, Oceanography and Atmospheric Sciences and Meteorology, Physical Sciences and Mathematics

Keywords

atmosphere, Turbulence, chaos, GASP, geostrophic, vortices

Dates

Published: 2019-06-22 10:16

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License

CC BY Attribution 4.0 International

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