Estimating marine sediment attenuation at low frequency with a vertical line array | Zendy

YongMin Jiang | Zendy; N. Ross Chapman | Zendy; Kunde Yang | Zendy; Yuanliang Ma | Zendy

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Estimating marine sediment attenuation at low frequency with a vertical line array

Author(s) -

YongMin Jiang,

N. Ross Chapman,

Kunde Yang,

Yuanliang Ma

Publication year - 2009

Publication title -

the journal of the acoustical society of america

Language(s) - English

Resource type - Journals

eISSN - 1520-8524

pISSN - 0001-4966

DOI - 10.1121/1.3097680

Subject(s) - attenuation , geology , sediment , reflection (computer programming) , line (geometry) , range (aeronautics) , acoustics , ocean bottom , waves and shallow water , seismology , optics , oceanography , materials science , geomorphology , physics , mathematics , computer science , geometry , composite material , programming language

This paper presents a method of determining the compressional wave attenuation in marine sediment from a short range measurement. The data were collected on a vertical line array at a range of 230 m during the Shallow Water 2006 experiments. The sediment attenuation is extracted from the signal strength ratio of the sea bottom reflection to a sub-bottom reflection at different frequencies from 1.75 to 3.15 kHz. Linear frequency dependence of the attenuation is found from the estimation. The sediment attenuation estimate is lower than the values estimated from the inversions of acoustic field data previously done in the vicinity.

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