title: The effect of a coastline on the underwater penetration of sonic booms.
abstract: A simplified analysis is presented for the underwater noise levels from a steady supersonic flight traversing a coastline. The effect of the coast is to introduce a propagating noise component that does not exhibit the classic evanescent attenuation with depth for flights subsonic in water. Expressions are given to estimate the boundary of, and levels within, the coastal region where this component dominates. An illustrative example is presented.
authors.affiliation: Cambridge Acoustical Associates, Engineering and Information Technologies Group, Anteon Corporation, Massachusetts 02140, USA. jgarrelick@anteon.com
authors.forename: Joel
authors.initials: J
authors.lastname: Garrelick
mesh_terms: D000401:Aircraft; D008962:Models, Theoretical; D009622:Noise; D009792:Oceans and Seas; D014867:Water
chemical_list: D014867:Water