Vertical Propagation of Acoustic Gravity Waves from the Lower Atmosphere during a Solar Eclipse

Dyakov, Yuri A.; Kurdyaeva, Yuliya; Borchevkina, O. P.; Карпов, И. В.; Адамсон, С. О.; Голубков, Г. В.; Olkhov, O. A.; Peskov, V.; Rodionov, А. N.; Rodionova, I. P.; Шаповалов, В. Л.; Shestakov, D. V.; Голубков, М. Г.

doi:10.1134/s1990793120020207

Cited by 9 publications

(3 citation statements)

References 22 publications

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“…Theoretical studies using models describing the propagation of IGWs in the atmosphere in a wide frequency range make it possible to emphasize the main wave features. The propagation of these waves is accompanied by dissipative and waveguide processes that lead to the excitation of secondary IGWs [2,3,31,32,38]. Because of this feature, the characteristics of disturbances created by spatially extended and mobile sources in the atmosphere get complicated.…”

Section: Vertical Propagation Of Aws and Igws In The Atmospherementioning

confidence: 99%

“…For example, the features of the morphology of the equatorial ionosphere and the ionosphere disturbances during a solar eclipse are considered in [25,26]. As a result of observations and theoretical studies [27][28][29][30][31][32], it was found that propagation of AWs and IGWs upward from the region of meteorological disturbance has a significant effect on the ionosphere. This study's main goal was to experimentally confirm the previously proposed mechanism for transferring the energy of tropospheric disturbances that arise during the passages of the solar terminator and solar eclipse into the ionosphere due to the vertical propagation of acoustic and internal gravity waves.…”

Section: Introductionmentioning

confidence: 99%

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The Influence of Tropospheric Processes on Disturbances in the D and E Ionospheric Layers

et al. 2021

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Determination of the physical mechanisms of the energy transfer of tropospheric disturbances to the ionosphere is one of the fundamental problems of atmospheric physics. This article presents the observational results of tropospheric and ionospheric disturbances during the passages of the solar terminator and solar eclipse. Lidar observations showed the occurrence of tropospheric regions with noticeably increased amplitudes of density, pressure, and temperature variations with periods corresponding to acoustic and internal gravity waves, which were generated in the troposphere during the development of these events. Simultaneous satellite measurements demonstrate the response of the ionosphere to these tropospheric disturbances. Based on the experimental data, we determine the typical periods and spatial scales of variations. It is shown that the response time of the ionosphere to tropospheric disturbances is 30–40 min.

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Section: Vertical Propagation Of Aws and Igws In The Atmospherementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The Influence of Tropospheric Processes on Disturbances in the D and E Ionospheric Layers

et al. 2021

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“…At present, the development of computer technology and the improvement of methods for the numerical integration of hydrodynamic equations make it possible to build models for the generation and propagation of AWs and IGWs in the atmosphere, taking into account nonlinear and dissipative processes, as well as real stratification of the medium, for example [5,9,58,59]. In theoretical research [59][60][61][62][63], it was established that the heat release/absorption processes occurring due to phase transitions of water in the atmosphere during the formation and evolution of clouds and the development of other meteorological phenomena have a significant effect on the state of the thermosphere and ionosphere. However, a significant problem in numerical studies of wave processes in the atmosphere is determining realistic sources of disturbances, as far as the initial and boundary conditions.…”

Section: Introductionmentioning

confidence: 99%

Disturbances of the Thermosphere and the Ionosphere during a Meteorological Storm

et al. 2021

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Determination of the physical mechanisms of energy transfer of tropospheric disturbances to the ionosphere is one of the fundamental problems of atmospheric physics. This article presents the results of observations carried out using two-wavelength lidar sensing at tropospheric altitudes and satellite GPS measurements during a meteorological storm in Kaliningrad (Russia, 54.7° N, 20.5° E) on 1 April 2016. During lidar sensing, it was found that the amplitudes of variations in atmospheric parameters with periods of acoustic (AWs) and internal gravity (IGWs) waves significantly increased. As a result of numerical modeling using the AtmoSym software package, it was shown that there is a noticeable increase in the period of temperature disturbances from 6–12 min to 10–17 min at altitudes from 150 km up to 230 km during the vertical propagation of acoustic waves and internal gravity waves from the troposphere. Nonlinear and dissipative processes in this layer lead to the formation of sources of secondary waves in the thermosphere with periods longer than those of primary ones. In this case, the unsteady nature of the wave source and the short duration of its operation does not lead to significant heating of the thermosphere. Simultaneous satellite observations demonstrate the response of the ionosphere (total electron content (TEC) disturbance) to tropospheric disturbances. Analysis of the time series of the amplitudes of the reflected lidar signal and TEC made it possible to determine that the response time of the ionosphere to tropospheric disturbances is 30–40 min.

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Thermospheric disturbances caused by the propagation of acoustic-gravity waves from the lower atmosphere during a solar eclipse

Kurdyaeva

Borchevkina

Карпов

et al. 2021

Advances in Space Research

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Vertical Propagation of Acoustic Gravity Waves from the Lower Atmosphere during a Solar Eclipse

Cited by 9 publications

References 22 publications

The Influence of Tropospheric Processes on Disturbances in the D and E Ionospheric Layers

The Influence of Tropospheric Processes on Disturbances in the D and E Ionospheric Layers

Disturbances of the Thermosphere and the Ionosphere during a Meteorological Storm

Thermospheric disturbances caused by the propagation of acoustic-gravity waves from the lower atmosphere during a solar eclipse

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