Transformation of Hydroacoustic Energy into Seismoacoustic Energy at 22 Hz in Medium Depth- and Deep-Sea Conditions
This work is devoted to an experiment studying the regularities of the propagation of hydroacoustic low-frequency signals in the conditions of the sea at intermediate depth and deep in terms of their transformation into vibrations in the upper layer of the Earth’s crust. This experiment belongs to t...
Saved in:
| Main Authors: | , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2024-12-01
|
| Series: | Applied Sciences |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2076-3417/15/1/267 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1841549402053804032 |
|---|---|
| author | Grigory Dolgikh Mikhail Bolsunovskii Sergey Budrin Stanislav Dolgikh Mikhail Ivanov Vladimir Ovcharenko Aleksandr Pivovarov Aleksandr Samchenko Vladimir Chupin Igor Yaroshchuk |
| author_facet | Grigory Dolgikh Mikhail Bolsunovskii Sergey Budrin Stanislav Dolgikh Mikhail Ivanov Vladimir Ovcharenko Aleksandr Pivovarov Aleksandr Samchenko Vladimir Chupin Igor Yaroshchuk |
| author_sort | Grigory Dolgikh |
| collection | DOAJ |
| description | This work is devoted to an experiment studying the regularities of the propagation of hydroacoustic low-frequency signals in the conditions of the sea at intermediate depth and deep in terms of their transformation into vibrations in the upper layer of the Earth’s crust. This experiment belongs to the field of acoustic tomography and is aimed at solving the problems of non-contact methods for studying the geological structure of the shelf areas of the World Ocean. The novelty and uniqueness of the work lies in the use of a harmonic low-frequency hydroacoustic signal with a frequency of 22 Hz of high power, capable of creating Rayleigh surface waves at the “water–bottom” interface. The surface waves propagating at the bottom are registered by a coastal laser-interference measuring system capable of recording deformations in the upper crustal layer with an accuracy of 0.01 nm. The experimental results showed that the radiated hydroacoustic energy is not localized in the liquid half-space and propagates predominantly according to the law close to spherical divergence, even when the shelf depth is comparable to the wavelength of the radiated signal. |
| format | Article |
| id | doaj-art-40809967856b4c56ad5dc76593a2d9ce |
| institution | Kabale University |
| issn | 2076-3417 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj-art-40809967856b4c56ad5dc76593a2d9ce2025-01-10T13:14:59ZengMDPI AGApplied Sciences2076-34172024-12-0115126710.3390/app15010267Transformation of Hydroacoustic Energy into Seismoacoustic Energy at 22 Hz in Medium Depth- and Deep-Sea ConditionsGrigory Dolgikh0Mikhail Bolsunovskii1Sergey Budrin2Stanislav Dolgikh3Mikhail Ivanov4Vladimir Ovcharenko5Aleksandr Pivovarov6Aleksandr Samchenko7Vladimir Chupin8Igor Yaroshchuk9V.I. Il’ichev Pacific Oceanological Institute, Far Eastern Branch, Russian Academy of Sciences, 690041 Vladivostok, RussiaV.I. Il’ichev Pacific Oceanological Institute, Far Eastern Branch, Russian Academy of Sciences, 690041 Vladivostok, RussiaV.I. Il’ichev Pacific Oceanological Institute, Far Eastern Branch, Russian Academy of Sciences, 690041 Vladivostok, RussiaV.I. Il’ichev Pacific Oceanological Institute, Far Eastern Branch, Russian Academy of Sciences, 690041 Vladivostok, RussiaV.I. Il’ichev Pacific Oceanological Institute, Far Eastern Branch, Russian Academy of Sciences, 690041 Vladivostok, RussiaV.I. Il’ichev Pacific Oceanological Institute, Far Eastern Branch, Russian Academy of Sciences, 690041 Vladivostok, RussiaV.I. Il’ichev Pacific Oceanological Institute, Far Eastern Branch, Russian Academy of Sciences, 690041 Vladivostok, RussiaV.I. Il’ichev Pacific Oceanological Institute, Far Eastern Branch, Russian Academy of Sciences, 690041 Vladivostok, RussiaV.I. Il’ichev Pacific Oceanological Institute, Far Eastern Branch, Russian Academy of Sciences, 690041 Vladivostok, RussiaV.I. Il’ichev Pacific Oceanological Institute, Far Eastern Branch, Russian Academy of Sciences, 690041 Vladivostok, RussiaThis work is devoted to an experiment studying the regularities of the propagation of hydroacoustic low-frequency signals in the conditions of the sea at intermediate depth and deep in terms of their transformation into vibrations in the upper layer of the Earth’s crust. This experiment belongs to the field of acoustic tomography and is aimed at solving the problems of non-contact methods for studying the geological structure of the shelf areas of the World Ocean. The novelty and uniqueness of the work lies in the use of a harmonic low-frequency hydroacoustic signal with a frequency of 22 Hz of high power, capable of creating Rayleigh surface waves at the “water–bottom” interface. The surface waves propagating at the bottom are registered by a coastal laser-interference measuring system capable of recording deformations in the upper crustal layer with an accuracy of 0.01 nm. The experimental results showed that the radiated hydroacoustic energy is not localized in the liquid half-space and propagates predominantly according to the law close to spherical divergence, even when the shelf depth is comparable to the wavelength of the radiated signal.https://www.mdpi.com/2076-3417/15/1/267laser strainmeterlow-frequency hydroacoustic radiatorhydroacoustic waveRayleigh wave |
| spellingShingle | Grigory Dolgikh Mikhail Bolsunovskii Sergey Budrin Stanislav Dolgikh Mikhail Ivanov Vladimir Ovcharenko Aleksandr Pivovarov Aleksandr Samchenko Vladimir Chupin Igor Yaroshchuk Transformation of Hydroacoustic Energy into Seismoacoustic Energy at 22 Hz in Medium Depth- and Deep-Sea Conditions Applied Sciences laser strainmeter low-frequency hydroacoustic radiator hydroacoustic wave Rayleigh wave |
| title | Transformation of Hydroacoustic Energy into Seismoacoustic Energy at 22 Hz in Medium Depth- and Deep-Sea Conditions |
| title_full | Transformation of Hydroacoustic Energy into Seismoacoustic Energy at 22 Hz in Medium Depth- and Deep-Sea Conditions |
| title_fullStr | Transformation of Hydroacoustic Energy into Seismoacoustic Energy at 22 Hz in Medium Depth- and Deep-Sea Conditions |
| title_full_unstemmed | Transformation of Hydroacoustic Energy into Seismoacoustic Energy at 22 Hz in Medium Depth- and Deep-Sea Conditions |
| title_short | Transformation of Hydroacoustic Energy into Seismoacoustic Energy at 22 Hz in Medium Depth- and Deep-Sea Conditions |
| title_sort | transformation of hydroacoustic energy into seismoacoustic energy at 22 hz in medium depth and deep sea conditions |
| topic | laser strainmeter low-frequency hydroacoustic radiator hydroacoustic wave Rayleigh wave |
| url | https://www.mdpi.com/2076-3417/15/1/267 |
| work_keys_str_mv | AT grigorydolgikh transformationofhydroacousticenergyintoseismoacousticenergyat22hzinmediumdepthanddeepseaconditions AT mikhailbolsunovskii transformationofhydroacousticenergyintoseismoacousticenergyat22hzinmediumdepthanddeepseaconditions AT sergeybudrin transformationofhydroacousticenergyintoseismoacousticenergyat22hzinmediumdepthanddeepseaconditions AT stanislavdolgikh transformationofhydroacousticenergyintoseismoacousticenergyat22hzinmediumdepthanddeepseaconditions AT mikhailivanov transformationofhydroacousticenergyintoseismoacousticenergyat22hzinmediumdepthanddeepseaconditions AT vladimirovcharenko transformationofhydroacousticenergyintoseismoacousticenergyat22hzinmediumdepthanddeepseaconditions AT aleksandrpivovarov transformationofhydroacousticenergyintoseismoacousticenergyat22hzinmediumdepthanddeepseaconditions AT aleksandrsamchenko transformationofhydroacousticenergyintoseismoacousticenergyat22hzinmediumdepthanddeepseaconditions AT vladimirchupin transformationofhydroacousticenergyintoseismoacousticenergyat22hzinmediumdepthanddeepseaconditions AT igoryaroshchuk transformationofhydroacousticenergyintoseismoacousticenergyat22hzinmediumdepthanddeepseaconditions |