NDLI: The potential impact of shell fragment distributions on high-frequency seafloor backscatter

Content Provider	IEEE Xplore Digital Library
Author	Lyons, A.P.
Copyright Year	1976
Abstract	There has been much recent activity on developing and testing high-frequency seafloor volume scattering models and on the related high-resolution characterization of seafloor volumes. This paper will address another plausible volume scattering mechanism that has not yet received much attention-distributions of broken shell fragments in sediment (commonly referred to as shell hash). The shell fragments are modeled as nonaggregating spherical scatterers, and the spatial distribution of the shell pieces is determined using the Percus-Yevick packing factor. Computer simulations of the multiple scattering and a single scattering model are used to study the power backscattered by shell hash sediments as a function of the volume of scatterers and the frequency of the incident wave (10-100 kHz). Parameter values for simulations are obtained by stereological analysis of x-ray computed tomography scans of sediment cores
Sponsorship	IEEE Oceanic Engineering Society
Starting Page	843
Ending Page	851
Page Count	9
File Size	343984
File Format	PDF
ISSN	03649059
Volume Number	30
Issue Number	4
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-10-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Sea floor Backscatter X-ray scattering Sediments Testing Computer simulation Frequency Computational modeling Analytical models Computed tomography underwater acoustics Acoustic scattering seafloor sediments
Content Type	Text
Resource Type	Article
Subject	Ocean Engineering Mechanical Engineering Electrical and Electronic Engineering

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