title: A stochastic response surface formulation of acoustic propagation through an uncertain ocean waveguide environment.
abstract: Stochastic basis expansions are applied to formulate and solve the problem of including uncertainty in numerical models of acoustic wave propagation within ocean waveguides. As an example, a constrained least-squares approach is used to estimate the intensity of an acoustic field whose waveguide environment has uncertainty in both source depth and sound speed. The mean intensity, a second moment of the field, and its probability distribution are computed and compared with independent Monte-Carlo computations of these quantities. Very good agreement is obtained, indicating the potential of stochastic basis expansions for describing multiple sources of uncertainty and their effect on acoustic propagation.
authors.affiliation: Acoustics Division, Naval Research Laboratory, Washington, DC 20375, USA.
authors.forename: Steven
authors.initials: S
authors.lastname: Finette
mesh_terms: D000162:Acoustics; D004777:Environment; D008962:Models, Theoretical; D009791:Oceanography / Q000379:methods*; D009792:Oceans and Seas; D013269:Stochastic Processes