INFRASOUND OSCILLATIONS CAUSED BY EXTRATROPICAL CYCLONES IN THE SEA OF JAPANE

Section
Methods, models and technologies
  • Vladimir A. Chupin V.I. Il’ichev Pacific Oceanological Institute FEB RAS, Vladivostok, Russia https://orcid.org/0000-0001-5103-8138
  • Egor S. Gusev V.I. Il’ichev Pacific Oceanological Institute FEB RAS, Vladivostok, Russia
Keywords: extratropical cyclones, infrasound oscillations, laser strainmeter, microdeformations of the Earth crust, wind, Sea of Japan
(+) Abstract

A brief review of the works of the authors, who performed the analysis of an extensive database microdeformations of the Earth's crust. As a result of the analysis of experimental data, it was revealed that in the general background of oscillations there are microseisms signals in the high-frequency infrasound range (5–12 Hz) during the periods of the passage of powerful tropical cyclones in the Sea of Japan. As a result of the study of the coastal laser strainmeter data, microseisms of oscillations in the upper part of the infrasound range with a distinct dual-frequency component were detected and manifested during the extratropical cyclone development in the northwestern and central part of the Sea of Japan. The methods for measuring microdeformations of the Earth's crust by a stationary two-coordinate coastal laser strainmeter and their processing are described. It is determined that the development of infrasound oscillations does not depend on local meteorological conditions. A brief synoptic analysis of the development of a cyclonic vortex in the Sea of Japan is performed in the article. The detected infrasound signals develop when a certain wind strength is reached along an extended atmospheric front in the Sea of Japan and fade quickly enough during the beginning of rapid displacement of the atmospheric front to the central part of the Sea of Japan with accelerating inflow of cold air masses from the north. The character of the manifestation of infrasound signals during the passage of an extratropical cyclone differs from similar manifestations during a more concentrated impact of tropical cyclones.

(+) About the author(s)

Vladimir A. Chupin,
V.I. Il’ichev Pacific Oceanological Institute FEB RAS, Vladivostok, Russia

eLibrary (РИНЦ)
SPIN-
код

ORCID ID

Scopus ID

Прочие

3093-7705

0000-0001-5103-8138

7004931608

G-8803-2016

Egor S. Gusev,
V.I. Il’ichev Pacific Oceanological Institute FEB RAS, Vladivostok, Russia

eLibrary (РИНЦ)
SPIN-
код

ORCID ID

Scopus ID

6111-0104

0000-0001-9275-3410

57203307138

 

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Published
2022-02-10
How to Cite
Vladimir A. Chupin, & Egor S. Gusev. (2022). INFRASOUND OSCILLATIONS CAUSED BY EXTRATROPICAL CYCLONES IN THE SEA OF JAPANE. Hydrosphere. Hazard Processes and Phenomena, 3(4), 346–354. https://doi.org/10.34753/HS.2021.3.4.346

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