Transformations of the bottom pressure variations, generated by marine infragravity waves into displacements of the upper layer of the earth’s crust. Quantitative assessment

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Аннотация

A quantitative assessment of the transformation of the bottom pressure variations, generated by infragravity waves into displacements of the upper layer of the Earth's crust has been made on the basis of experimental data, obtained with a laser meter of hydrosphere pressure variations and two laser strainmeters. The dependence of the coefficient of transformation of bottom pressure into elastic vibrations of the Earth's crust on the periods of infragravity waves was determined.

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Авторлар туралы

G. Dolgikh

V.I. Il’ichev Pacific Oceanological Institute, Far Eastern Branch of the Russian Academy of Sciences

Хат алмасуға жауапты Автор.
Email: ss_budrin@mail.ru

Academician of the RAS

Ресей, Vladivostok

S. Budrin

V.I. Il’ichev Pacific Oceanological Institute, Far Eastern Branch of the Russian Academy of Sciences

Email: ss_budrin@mail.ru

Academician of the RAS

Ресей, Vladivostok

S. Dolgikh

V.I. Il’ichev Pacific Oceanological Institute, Far Eastern Branch of the Russian Academy of Sciences

Email: ss_budrin@mail.ru

Academician of the RAS

Ресей, Vladivostok

Әдебиет тізімі

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  4. Webb S.C. Broadband seismology and noise under the ocean // Reviews of Geophysics. 1992. V. 36. № 1. P. 105–142. doi: 10.1029/97RG02287.
  5. Ковалев Д.П., Долгих Г.И., Шевченко Г.В. Возбуждение низкочастотных микросейсм инфрагравитационными волнами на юго-восточном побережье о. Сахалин // ДАН. 2015. Т. 461. № 4. С. 451–454. doi: 10.7868/S0869565215100199.
  6. Табулевич В.Н., Попитов В.А., Пономарев Е.А., Сорокин А.Г., Дреннова Н.Н. Регистрация мощных циклонов с помощью наблюдений на сейсмических станциях // Известия Российской академии наук. Физика атмосферы и океана. 2005. Т. 41. № 4. С. 571–576.
  7. Долгих Г.И., Овчаренко В.В. “Шум” земли в диапазоне инфрагравитационных морских волн // ДАН. 2008. Т. 422. № 2. С. 250–253.
  8. Dolgikh G, Budrin S, Dolgikh S., Plotnikov A. Supersensitive Detector of Hydrosphere Pressure Variations // Sensors. 2020. V. 20. №. 23. P. 6998. doi: 10.3390/s20236998
  9. Долгих Г.И., Бутырин П.Г., Долгих С.Г., Дягилев Р.А., Швец В.А., Яковенко С.В. Регистрация инфразвуковых деформационных возмущений пространственно разнесенными лазерными деформографами // ДАН. 2011. Т. 441. № 3. С. 376–379.

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2. Fig. 1. Spectrogram of the arrival of the main group of swell waves and the spectrum of infragravity waves recorded by the LIVDG (a) and spectrograms of microseisms of the second kind and spectra of microseisms of the first kind caused by swell waves and infragravity waves obtained from the horizontal components of the laser strainmeter “North–South 1”, “North–South 2” (b, c).

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3. Fig. 2. Spectrogram of the recording of infragravity waves obtained with LIVDG (a) and spectra constructed from the data sections selected on the spectrogram (b)

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4. Fig. 3. (a) Variations in the amplitudes of bottom pressure and displacements of the upper crustal layer and (b) graphs of variations in the transfer coefficient (the ratio of the magnitude of displacements to the magnitude of bottom pressure) for three ranges of periods corresponding to the periods of the recorded infragravity waves.

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5. Fig. 4. Dependence of the transfer coefficient on the period of infragravity waves for different time intervals.

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