Effective model of gassy sediments and acoustical approach for its verification

Regina Katsman; Andrey Lunkov; Ernst Uzhansky; Boris Katsnelson

doi:10.1121/2.0001462

Effective model of gassy sediments and acoustical approach for its verification

Regina Katsman, Andrey Lunkov, Ernst Uzhansky, Boris Katsnelson

Department of Marine Geosciences

Research output: Contribution to journal › Conference article › peer-review

Abstract

Gassy sediments of shallow lakes are a source of permanent concern due to their contributions to sediment destabilization and global warming. In this study, a “microscopic” bubble model is suggested that describes shapes and sizes of methane bubbles in muddy aquatic sediments predefined by sediment mechanical properties. An effective media model specifying a bubble size distribution is designed based on the microscopic model. An acoustic approach for verification of this model is proposed. It is based on the estimation of the frequency dependence of sound reflection coefficient from gassy sediments, which exhibits the resonant behavior. An experimental implementation of the method is discussed.

Original language	English
Article number	005001
Journal	Proceedings of Meetings on Acoustics
Volume	44
Issue number	1
DOIs	https://doi.org/10.1121/2.0001462
State	Published - 20 Jun 2021
Event	6th Underwater Acoustics Conference and Exhibition, UACE 2021 - Virtual, Online Duration: 20 Jun 2021 → 25 Jun 2021

Bibliographical note

Publisher Copyright:
© 2021 Acoustical Society of America.

ASJC Scopus subject areas

Acoustics and Ultrasonics

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1121/2.0001462

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abstract = "Gassy sediments of shallow lakes are a source of permanent concern due to their contributions to sediment destabilization and global warming. In this study, a “microscopic” bubble model is suggested that describes shapes and sizes of methane bubbles in muddy aquatic sediments predefined by sediment mechanical properties. An effective media model specifying a bubble size distribution is designed based on the microscopic model. An acoustic approach for verification of this model is proposed. It is based on the estimation of the frequency dependence of sound reflection coefficient from gassy sediments, which exhibits the resonant behavior. An experimental implementation of the method is discussed.",

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AU - Uzhansky, Ernst

AU - Katsnelson, Boris

PY - 2021/6/20

Y1 - 2021/6/20

N2 - Gassy sediments of shallow lakes are a source of permanent concern due to their contributions to sediment destabilization and global warming. In this study, a “microscopic” bubble model is suggested that describes shapes and sizes of methane bubbles in muddy aquatic sediments predefined by sediment mechanical properties. An effective media model specifying a bubble size distribution is designed based on the microscopic model. An acoustic approach for verification of this model is proposed. It is based on the estimation of the frequency dependence of sound reflection coefficient from gassy sediments, which exhibits the resonant behavior. An experimental implementation of the method is discussed.

AB - Gassy sediments of shallow lakes are a source of permanent concern due to their contributions to sediment destabilization and global warming. In this study, a “microscopic” bubble model is suggested that describes shapes and sizes of methane bubbles in muddy aquatic sediments predefined by sediment mechanical properties. An effective media model specifying a bubble size distribution is designed based on the microscopic model. An acoustic approach for verification of this model is proposed. It is based on the estimation of the frequency dependence of sound reflection coefficient from gassy sediments, which exhibits the resonant behavior. An experimental implementation of the method is discussed.

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JO - Proceedings of Meetings on Acoustics

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T2 - 6th Underwater Acoustics Conference and Exhibition, UACE 2021

Y2 - 20 June 2021 through 25 June 2021

ER -

Effective model of gassy sediments and acoustical approach for its verification

Abstract

Bibliographical note

ASJC Scopus subject areas

UN SDGs

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