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Estimating geoacoustic parameters of...

R. Matthews, Marie-Noel.

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Estimating geoacoustic parameters of gassy sediment using low-frequency sound in St. Margaret's Bay, Nova Scotia.

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	Estimating geoacoustic parameters of gassy sediment using low-frequency sound in St. Margaret's Bay, Nova Scotia./
作者:	R. Matthews, Marie-Noel.
面頁冊數:	126 p.
附註:	Source: Masters Abstracts International, Volume: 48-06, page: 3542.
Contained By:	Masters Abstracts International48-06.
標題:	Biology, Oceanography. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=MR63573
ISBN:	9780494635735

Estimating geoacoustic parameters of gassy sediment using low-frequency sound in St. Margaret's Bay, Nova Scotia.
R. Matthews, Marie-Noel.

Estimating geoacoustic parameters of gassy sediment using low-frequency sound in St. Margaret's Bay, Nova Scotia. - 126 p.

Source: Masters Abstracts International, Volume: 48-06, page: 3542.

Thesis (M.Sc.)--Dalhousie University (Canada), 2010.

Shallow gassy sediments are found in marine environments allover the world. The prediction of their geoacoustic properties requires accurate information about the bubble size distribution and concentration, but the direct measurement of these parameters requires expensive equipment. The main objective of this study was to estimate the geoacoustic parameter values of the gassy sediment layer found in St. Margaret's Bay, through the Bayesian inversion of a low-frequency underwater acoustic signal, a scheme that does not rely on prior knowledge of the sediment type or properties. Inversion of simulated data sets showed that the method can distinguish between a gassy and non-gassy seabed, as well as reasonably estimate the geoacoustic properties of the gassy sediment layer. The inversion of the field data showed that the method can provide an initial appraisal of the geoacoustic properties of gassy sediments, without the use of expensive pressure cores or in situ measurements.

ISBN: 9780494635735Subjects--Topical Terms:

783691
Biology, Oceanography.

Estimating geoacoustic parameters of gassy sediment using low-frequency sound in St. Margaret's Bay, Nova Scotia.
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