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Seafloor characterization using time-dependent acoustic backscatter: Study at Arabian Sea

DRS at CSIR-National Institute of Oceanography

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Title Seafloor characterization using time-dependent acoustic backscatter: Study at Arabian Sea
 
Creator Chakraborty, B.
De, C.
 
Description This paper presents application of `inversion modeling` technique to echo shape data acquired shallow water regions off Goa. The estimated sediment and seafloor roughness parameter for two different frequencies (33 and 210 kHz) provide comparable results. The mean grain size of the sediment (M Theta) estimated through the inversion of echo envelope data deviates for mixed sediments of clayey-silt type of five locations for both the operating frequencies, though the roughness characteristics (w2) and volume characteristics (Sigma v) show a good agreement for relatively mixed and coarse-grained sediments. The extent of deviation in estimated grain size parameters can be related well the estimated sediment volume roughness parameters. Location wise higher sediment volume inhomogeneities in turn show difference in the estimated mean grain size (interface roughness) parameter for five mixed sediment type (clayey-silt).
 
Date 2008-05-01T12:00:38Z
2008-05-01T12:00:38Z
2008
 
Type Conference Article
 
Identifier Oceans'08 MTS/IEEE Kobe-Techno-Ocean'08, April 9-11, 2008, Kobe, Japan, 4 ppp.
http://drs.nio.org/drs/handle/2264/1071
 
Language en
 
Rights Copyright [2008]. It is tried to respect the rights of the copyright holders to the best of the knowledge. If it is brought to our notice by copyright holder that the rights are voilated then the item would be withdrawn.
 
Publisher IEEE