Nonlinear acoustical methods in the detection of gassy sediments in the gulf of Gdańsk

• Autorzy: Tęgowski J. , Jakacki J. , Klusek Z. , Rudowski S.
• Języki publikacji: EN

Abstrakty

EN

The application of nonlinear backscattering of acoustical signals in detection of gas bubbles in subsurface layer of sediment of the Gulf of Gdansk is presented. Gas bubbles concentration was estimated assuming that nonlinear scattering in soft sediments is similar as in water. Summary, difference and double harmonics generated only by gas bubbles were recorded and used for bubble density estimation. Comparisons of the concentrations received from different nonlinear components show generally agreement in calculated bubble density distributions, although values of densities acquired from almost identical volumes in a single transmission differ.

Słowa kluczowe

EN

nonlinear acoustical methods; gulf of Gdańsk; acoustical signals; gas

• Wydawca: Polskie Towarzystwo Akustyczne. Oddział Gdański
• Czasopismo: Hydroacoustics
• Rocznik: 2003
• Tom: Vol. 6
• Strony: 151--158
• Opis fizyczny: Bibliogr. 13 poz., rys.

Twórcy

autor

Tęgowski J.

• Institute of Oceanology, Polish Aeademy of Sciences, Sopot, Poland

autor

Jakacki J.

• Naval Postgraduate School, Monterey, USA

autor

Klusek Z.

• Institute of Oceanology, Polish Aeademy of Sciences, Sopot, Poland

autor

Rudowski S.

• Institute of Oceanography , University of Gdansk, Gdynia, Poland

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