Journal cover Journal topic
Annales Geophysicae An open-access journal of the European Geosciences Union
Ann. Geophys., 32, 181-186, 2014
https://doi.org/10.5194/angeo-32-181-2014
© Author(s) 2014. This work is distributed under
the Creative Commons Attribution 3.0 License.
Regular paper
25 Feb 2014
Rolls of the internal gravity waves in the Earth's atmosphere
O. Onishchenko1,2, O. Pokhotelov1, W. Horton3, A. Smolyakov4, T. Kaladze5,6, and V. Fedun7 1Institute of Physics of the Earth, 10 B. Gruzinskaya, 123995 Moscow, Russian Federation
2Space Research Institute, 84/32, Profsoyuznaya str., 117997 Moscow, Russian Federation
3Institute for Fusion Studies, University of Texas at Austin, Austin, Texas, USA
4University of Saskatchewan, Saskatchewan, S7N 5E2, Canada
5I. Vekua Institute of Applied Mathematics, Tbilisi State University, Tbilisi, Georgia
6Physics Department, Government College University, Lahore 54000, Pakistan
7Space Systems Laboratory, Department of Automatic Control and Systems Engineering, University of Sheffield, Sheffield, S1 3JD, UK
Abstract. The effect of the wind shear on the roll structures of nonlinear internal gravity waves (IGWs) in the Earth's atmosphere with the finite vertical temperature gradients is investigated. A closed system of equations is derived for the nonlinear dynamics of the IGWs in the presence of temperature gradients and sheared wind. The solution in the form of rolls has been obtained. The new condition for the existence of such structures was found by taking into account the roll spatial scale, the horizontal speed and wind shear parameters. We have shown that the roll structures can exist in a dynamically unstable atmosphere.

Citation: Onishchenko, O., Pokhotelov, O., Horton, W., Smolyakov, A., Kaladze, T., and Fedun, V.: Rolls of the internal gravity waves in the Earth's atmosphere, Ann. Geophys., 32, 181-186, https://doi.org/10.5194/angeo-32-181-2014, 2014.
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