Analysis of broad-band echosounder data over a gassy seabed

dc.contributor.author	Boyle, Frank A.
dc.contributor.author	Chotiros, Nicholas P.
dc.contributor.author	Pace, Nicholas G.
dc.contributor.author	Bergem, Oddbjorn
dc.contributor.author	Pouliquen, Eric
dc.date.accessioned	2018-10-11T14:08:07Z
dc.date.available	2018-10-11T14:08:07Z
dc.date.issued	1997
dc.identifier	11441
dc.identifier.govdoc	CP-45
dc.identifier.uri	http://hdl.handle.net/20.500.12489/401
dc.description.abstract	Calibrated echosoundings from a well-characterized gassy seabed were examined. Acoustic reflection was significantly higher than expected. It is hypothesized that gas bubbles are responsible. Anomalously high levels of reflection appear at the edge of the spectral peak, possibly associated with nonlinear conversion of acoustic energy. An acoustic colormapping method was applied to the data, clearly showing its spectral character. The spectral features appear to carry relevant information about sediment interface roughness and gas content.
dc.format	8 p. : ill. ; digital, PDF file
dc.language	English
dc.publisher	NATO. SACLANTCEN
dc.source	In: High Frequency Seafloor Acoustics (SACLANTCEN Conference Proceedings CP-45), 1997, pp. 49-56
dc.subject	Seafloor
dc.subject	Gases
dc.subject	Bubbles
dc.subject	Echosounders
dc.subject	Acoustic reflection
dc.subject	Seafloor sediments
dc.title	Analysis of broad-band echosounder data over a gassy seabed
dc.type	Papers and Articles
dc.type	Conference Proceedings (CP)