Seabottom characterization using multibeam echosounder angular backscatter: An application of the composite roughness theory

Composite roughness theory is used to characterize Southern Ocean bottom backscatter (multibeam) data. Spectral parameters based on Helmholtz-Kirchhof's theory (1) are determined from measured near-normal incidence values. A splicing technique using Rayleigh-Rice theory (2) is employed beyond 2...

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Bibliographic Details
Main Authors: Chakraborty, B., Schenke, H.W., Kodagali, V.N., Hagen, R.
Format: Article in Journal/Newspaper
Language:English
Published: IEEE 2000
Subjects:
ocean floor
backscatter
echosounders
roughness
multibeam sonar
correlation
marine geology
deep water
Southern Ocean
Online Access:http://drs.nio.org/drs/handle/2264/1647
Description
Summary:Composite roughness theory is used to characterize Southern Ocean bottom backscatter (multibeam) data. Spectral parameters based on Helmholtz-Kirchhof's theory (1) are determined from measured near-normal incidence values. A splicing technique using Rayleigh-Rice theory (2) is employed beyond 20 degrees incidence angles. Estimated roughness parameters for six deep ocean areas correlate with geology

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