Space and time variations in the fine structure of the upper atmosphere according to acoustic sounding data
- Authors: Kulichkov S.N.1, Chunchuzov I.P.1, Bush G.A.1, Mishenin A.A.1, Golikova E.V.1
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Affiliations:
- Obukhov Institute of Atmospheric Physics
- Issue: Vol 52, No 2 (2016)
- Pages: 176-187
- Section: Article
- URL: https://journals.rcsi.science/0001-4338/article/view/148422
- DOI: https://doi.org/10.1134/S0001433816020055
- ID: 148422
Cite item
Abstract
The results of studying variations in the fine layered structure of the upper atmosphere (heights of 20–140 km) according to data obtained from acoustic sounding within the range of infrasonic waves are given. The sources of infrasounds were surface explosions equivalent to 10 kg to 70 t of TNT. These explosions were set off in different seasons in different regions of Russia. Experimental data obtained in 1981–2011 have been analyzed. It has been found that the fine structure in the form of vertically distributed layered formations occurs in the upper atmosphere in all seasons. Moreover, the vertical distribution of both air-temperature and wind-velocity inhomogeneities in the upper atmosphere may be invariable over a time interval of no less than several hours. It has also been found that, throughout the entire atmospheric thickness from the stratopause to the lower thermosphere heights (up to 140 km), the instantaneous height distribution of layered air-temperature and wind-velocity inhomogeneities may remain almost unchanged during a time interval of no less than 20 min.
About the authors
S. N. Kulichkov
Obukhov Institute of Atmospheric Physics
Author for correspondence.
Email: snik1953@gmail.com
Russian Federation, Pyzhevskii per. 3, Moscow, 119017
I. P. Chunchuzov
Obukhov Institute of Atmospheric Physics
Email: snik1953@gmail.com
Russian Federation, Pyzhevskii per. 3, Moscow, 119017
G. A. Bush
Obukhov Institute of Atmospheric Physics
Email: snik1953@gmail.com
Russian Federation, Pyzhevskii per. 3, Moscow, 119017
A. A. Mishenin
Obukhov Institute of Atmospheric Physics
Email: snik1953@gmail.com
Russian Federation, Pyzhevskii per. 3, Moscow, 119017
E. V. Golikova
Obukhov Institute of Atmospheric Physics
Email: snik1953@gmail.com
Russian Federation, Pyzhevskii per. 3, Moscow, 119017