Abstract
This paper examines the effect of input parameter uncertainty in the prediction of acoustic response in ocean sediment. Due to the relatively large number of physical parameters in the model, and the difficulty of their direct measurement in the ocean environment, uncertainty in the predicted acoustic response is expected. Utilizing a second order Taylor series expansion, this paper demonstrates a methodology for estimating the output uncertainty in terms of statistical moments from the input uncertainty. The methodology is then tied to a practical procedure that uses engineering measurements and empirical relations to determine parameters such as shear modulus, bulk modulus, and permeability, from porosity. A related issue of pore size distribution and its effect on acoustic response is also investigated.
Published Version
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