Published In

Journal of the Acoustical Society of America Express Letters

Document Type

Article

Publication Date

12-2012

Subjects

Underwater acoustics, Sediments (Geology) -- Acoustic properties

Abstract

This letter applies trans-dimensional Bayesian geoacoustic inversion to quantify the uncertainty due to model selection when inverting bottom-loss data derived from wind-driven ambient-noise measurements. A partition model is used to represent the seabed, in which the number of layers, their thicknesses, and acoustic parameters are unknowns to be determined from the data. Exploration of the parameter space is implemented using the Metropolis–Hastings algorithm with parallel tempering, whereas jumps between parameterizations are controlled by a reversible-jump Markov chain Monte Carlo algorithm. Sediment uncertainty profiles from inversion of simulated and experimental data are presented.

Description

This is the publisher's final PDF. Copyright 2012 Acoustical Society of America. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the Acoustical Society of America. The following article appeared in J. Acoust. Soc. Am. 133, EL47 and may be found at: http://dx.doi.org/10.1121/1.4771975

DOI

10.1121/1.4771975

Persistent Identifier

http://archives.pdx.edu/ds/psu/12064

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