Changes of turbulence processes in thermosphere in the passage of inner gravity waves

1Kozak, LV
1Taras Shevchenko National University of Kyiv, Kyiv, Ukraine
Kosm. nauka tehnol. 2002, 8 ;(5-6):086-090
https://doi.org/10.15407/knit2002.05.086
Publication Language: Ukrainian
Abstract: 
We modelled the influence of inner gravity waves (IGW) on the turbulence intensification at the mesopause and lower thermosphere heights. The propagation of IGW in the horizontally stratificated non-isothermal atmosphere is considered. We compared the turbulence coefficients both for the temperature and wind background values and when the disturbances of atmosphere parameters in the passage of a wave were taken into account. The UARS satellite data were taken as the temperature and wind background values. We noted the changes of the coefficients of turbulent viscosity and temperature conductivity in moderately thin layers of the atmosphere in the passage of IGW.
Keywords: inner gravity waves, lower thermosphere, turbulence
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