Vertical propagation acoustic-gravity waves from atmospheric fronts into the upper atmosphere

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Abstract


Using experimental observations of atmospheric pressure variations on the Earth’s surface recorded with a network of 4 microbarographs located in the Moscow region during the passage of an atmospheric front, empirical approximations of oscillations of atmospheric pressure field were constructed. The obtained approximating functions were used as the lower boundary condition for the numerical simulation of acoustic-gravity wave propagation to the upper atmosphere from the source in the lower troposphere. Estimates of the amplitude of temperature disturbances in the upper atmosphere caused by iacoustic gravity waves from the atmospheric front are given. The obtained estimates for the temperature disturbance amplitude take values around 170 K. The amplitude of temperature disturbances in the upper atmosphere, caused by background variations of pressure on the Earth's surface, is estimated at 4-5 K.


About the authors

Y. A. Kurdyaeva

Immanuel Kant Baltic Federal University; KB Institute of Terrestrial Magnetism, Ionosphere and Radio Wave Propagation, Russian Academy of Science

Author for correspondence.
Email: yakurdyaeva@gmail.com

Russian Federation, A. Nevskogo Street, 14, Kaliningrad, 236041; Pionerskaya Street, 61, Kaliningrad, 236016

S. N. Kulichkov

Obukhov Institute of Atmospheric Physics, Russian Academy of Science; Moscow State University

Email: yakurdyaeva@gmail.com

Russian Federation, Pyzhevsky Avenue, 3, Moscow, 119017; Leninskiye gory, d. 1, str. 2, Moscow, 119991

Faculty of Physics

S. P. Kshevetskii

Obukhov Institute of Atmospheric Physics, Russian Academy of Science

Email: yakurdyaeva@gmail.com

Russian Federation, Pyzhevsky Avenue, 3, Moscow, 119017

O. P. Borchevkina

Immanuel Kant Baltic Federal University; KB Institute of Terrestrial Magnetism, Ionosphere and Radio Wave Propagation, Russian Academy of Science

Email: yakurdyaeva@gmail.com

Russian Federation, A. Nevskogo Street, 14, Kaliningrad, 236041; Pionerskaya Street, 61, Kaliningrad, 236016

E. V. Golikova

Obukhov Institute of Atmospheric Physics, Russian Academy of Science

Email: yakurdyaeva@gmail.com

Russian Federation, Pyzhevsky Avenue, 3, Moscow, 119017

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