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Annales Geophysicae An interactive open-access journal of the European Geosciences Union
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Discussion papers
https://doi.org/10.5194/angeo-2019-16
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/angeo-2019-16
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Regular paper 12 Feb 2019

Regular paper | 12 Feb 2019

Review status
This discussion paper is a preprint. It is a manuscript under review for the journal Annales Geophysicae (ANGEO).

Propagation to the upper atmosphere of acoustic-gravity waves from atmospheric fronts in the Moscow region

Yuliya Kurdyaeva1,2, Sergey Kulichkov3, Sergey Kshevetskii1, Olga Borchevkina1,2, and Elena Golikova3 Yuliya Kurdyaeva et al.
  • 1I.Kant Baltic Federal University, Kaliningrad, Russia
  • 2West Department of the Institute of Earth Magnetism, Ionosphere and Radio Wave Propagation RAS, Kaliningrad, Russia
  • 3A.M. Obuckhov Institute of Atmospheric Physics RAS, Moscow, Russia

Abstract. Experimental data of pressure variations on the Earth’s surface during the passage of an atmospheric front recorded on a network of 4 microbarographs in the Moscow region is used. Applying this experimental data, empirical approximations of atmospheric pressure field oscillations are suggested. The obtained approximating surface pressure functions are used as the lower boundary condition for simulating the vertical propagation of acoustic-gravity waves from a source in the lower troposphere. Estimates of the amplitude of temperature disturbances in the upper atmosphere caused by acoustic-gravity waves from a propagating atmospheric front are obtained. For the amplitude of wave temperature disturbances, values of about 200 K is obtained. The amplitude of temperature disturbances in the upper atmosphere caused by background pressure fluctuations on the Earth’s surface is estimated as 4–5 K.

Yuliya Kurdyaeva et al.
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Yuliya Kurdyaeva et al.
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Short summary
To simulate the vertical propagation of atmospheric waves, experimental data on pressure variations at the Earth’s surface are used. These data are associated with the meteorological source. The simulation results have allowed to the first time estimate the amplitudes of temperature wave disturbances in the upper atmosphere caused by waves from the atmospheric front. The simulations have been performed using the Lomonosov supercomputer.
To simulate the vertical propagation of atmospheric waves, experimental data on pressure...
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