Parabolic Equation Techniques for Range-Dependent Seismo-Acoustics

Jon M. Collis, Elizabeth T. Kusel, Wayne Jerzak, Donald A. Outing, and William L. Siegmann Rensselaer Polytechnic Institute, Troy, New York 12180 Some recent progress in the development of parabolic equation techniques for range-dependent seismo-acoustics is discussed. An improved formulation makes it possible to handle arbitrary stratification and all wave types. Range dependence can be handled with greater accuracy by using approaches based on rotating coordinates and single scattering. One of the ways the parabolic solutions are being tested is through comparison with data.