title: Mid-frequency sound propagation through internal waves at short range with synoptic oceanographic observations.
abstract: Preliminary results are presented from an analysis of mid-frequency acoustic transmission data collected at range 550 m during the Shallow Water 2006 Experiment. The acoustic data were collected on a vertical array immediately before, during, and after the passage of a nonlinear internal wave on 18 August, 2006. Using oceanographic data collected at a nearby location, a plane-wave model for the nonlinear internal wave's position as a function of time is developed. Experimental results show a new acoustic path is generated as the internal wave passes above the acoustic source.
authors.forename: Daniel
authors.initials: D
authors.lastname: Rouseff
authors.forename: Dajun
authors.initials: D
authors.lastname: Tang
authors.forename: Kevin L
authors.initials: KL
authors.lastname: Williams
authors.forename: Zhongkang
authors.initials: Z
authors.lastname: Wang
authors.forename: James N
authors.initials: JN
authors.lastname: Moum
mesh_terms: D000162:Acoustics; D019015:Geologic Sediments; D008962:Models, Theoretical; D009038:Motion; D017711:Nonlinear Dynamics; D009791:Oceanography; D009792:Oceans and Seas; D010865:Pilot Projects; D011825:Radar; D012815:Signal Processing, Computer-Assisted; D013016:Sound; D013018:Sound Spectrography; D013997:Time Factors