We compute the propagation of waves forced at the bottom of an inhomogeneous stratified moving fluid, using vertical normal modes and horizontal rays. The problem is separated into a range-dependent nonlinear eigenproblem that defines the vertical structure of the solution and a set of coupled inhomogeneous ordinary differential equations with nonconstant coefficients in the horizontal. Under t...

The cross correlations of the wave signals emitted by ambient noise sources can be used to estimate the Green’s function of the wave equation in an inhomogeneous medium. In this paper we clarify the role of random scattering in the Green’s function estimation in the radiative transport regime and we show how this insight can be used to estimate the velocity of propagation of a smooth background...

Formulas are derived for solutions of many-body wave scattering problems by small particles in the case of acoustically soft, hard, and impedance particles embedded in an inhomogeneous medium. The limiting case is considered, when the size a of small particles tends to zero while their number tends to infinity at a suitable rate. Equations for the limiting effective (self-consistent) field in t...