Articles with "acoustic gravity" as a keyword



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Simulation of Propagation of Acoustic-Gravity Waves Generated by Tropospheric Front Instabilities into the Upper Atmosphere

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Published in 2020 at "Pure and Applied Geophysics"

DOI: 10.1007/s00024-020-02569-y

Abstract: A numerical model of the propagation of acoustic-gravity waves excited by pressure fluctuations on the Earth’s surface is developed. Propagation of acoustic-gravity waves generated by instabilities of tropospheric fronts into the upper atmosphere is simulated.… read more here.

Keywords: gravity waves; upper atmosphere; propagation acoustic; acoustic gravity ... See more keywords
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Complex acoustic gravity wave behaviors to some mathematical models arising in fluid dynamics and nonlinear dispersive media

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Published in 2017 at "Optical and Quantum Electronics"

DOI: 10.1007/s11082-017-1286-y

Abstract: This study acquires the wave solutions of the two well-known nonlinear models, namely; the modified Benjamin–Bona–Mahony and the coupled Klein–Gordon equations. The modified Benjamin–Bona–Mahony is a nonlinear model that describes the long surface gravity waves… read more here.

Keywords: complex acoustic; behaviors mathematical; gravity wave; wave behaviors ... See more keywords
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Ionospheric effects of magneto-acoustic-gravity waves: Dispersion relation

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Published in 2017 at "Journal of Atmospheric and Solar-Terrestrial Physics"

DOI: 10.1016/j.jastp.2017.04.004

Abstract: Abstract There is extensive evidence for ionospheric effects associated with earthquake-related atmospheric disturbances. Although the existence of earthquake precursors is controversial, one suggested method of detecting possible earthquake precursors and tsunamis is by observing possible… read more here.

Keywords: gravity waves; dispersion relation; magneto acoustic; dispersion ... See more keywords
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Propagation of non-stationary acoustic-gravity waves at thermospheric temperatures corresponding to different solar activity

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Published in 2018 at "Journal of Atmospheric and Solar-Terrestrial Physics"

DOI: 10.1016/j.jastp.2018.03.021

Abstract: Abstract Numerical simulation of non-stationary nonlinear acoustic-gravity waves (AGWs) propagating from the surface wave source to the thermosphere reveals that their propagation conditions and parameters depend on changes in background temperature, density, composition, molecular viscosity… read more here.

Keywords: solar activity; gravity waves; non stationary; acoustic gravity ... See more keywords
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Impact of thermal misbalance on acoustic-gravity waves in the solar atmosphere

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Published in 2023 at "Monthly Notices of the Royal Astronomical Society"

DOI: 10.1093/mnras/stad1005

Abstract: The joint effect of gravity and thermal misbalance on the dynamics of acoustic-gravity waves (AGW) in the solar atmosphere is considered. It is shown that the heating and cooling taken in the form of power… read more here.

Keywords: gravity; acoustic gravity; solar atmosphere; gravity waves ... See more keywords
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Acoustic gravity waves and the atmospheric electric field perturbations accompanying them

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Published in 2017 at "Geomagnetism and Aeronomy"

DOI: 10.1134/s0016793217030161

Abstract: Data on observations of acoustic gravity waves and variations in the electric field strength in the surface layer of the atmosphere are presented. Analysis of the obtained data shows that synchronous variations in the pressure… read more here.

Keywords: field; gravity waves; acoustic gravity; electric field ... See more keywords