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Acoustic and electric precursors of heavy thunderstorm under megalopolis conditions
Institute of Geosphere Dynamics, Russian Academy of Sciences, Moscow, Russia
Journal: Geophysical processes and biosphere
Tome: 16
Number: 4
Year: 2017
Pages: 81-91
UDK: 550.3+550.4+551.558
DOI: 10.21455/GPB2017.4-7
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Spivak A., Rybnov Y., Soloviev S., Kharlamov V. Acoustic and electric precursors of heavy thunderstorm under megalopolis conditions // . 2017. Т. 16. № 4. С. 81-91. DOI: 10.21455/GPB2017.4-7
@article{SpivakAcoustic2017,
author = "Spivak, A. and Rybnov, Y. and Soloviev, S. and Kharlamov, V.",
title = "Acoustic and electric precursors of heavy thunderstorm under megalopolis conditions",
journal = "Geophysical processes and biosphere",
year = 2017,
volume = "16",
number = "4",
pages = "81-91",
doi = "10.21455/GPB2017.4-7",
language = "English"
}
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Keywords: megalopolis, instrumental observations, thunderstorm cell, meteoparameters, electric field, acoustic vibrations
Аnnotation: Analysis of the instrumental observation results of electric field and microvariations of atmosphere pressure in the ground atmosphere during heavy thunderstorms in the Moscow city for the period 2014-2016 was carried out. It is shown that storm-cloud arrival is forestalled by variations of electric field strength, internal gravity waves and increased magnitudes of impedance acoustic correlation. More high-frequency (~ 1 min) variations of the electric field and increased turbulization of atmosphere are observed after arrival of cold atmospheric front also during period of thunderstorm phenomena. Wind motions in atmosphere practically absent and internal gravity waves are observed at the final stage of the phenomena. The period of electric field variations increased up to ~ 15 min at the same time.
