title: Seabed acoustics of a sand ridge on the New Jersey continental shelf.
abstract: Acoustic measurements were made on a sand ridge on the New Jersey continental shelf. Data collected on two L arrays separated by 20 km from a single multi-frequency tow suggest small horizontal environmental variability. Values for the sound speed structure of the seabed are extracted by first applying a geo-acoustic inversion method to broadband and narrowband acoustic data from short-range sources. Then, a parabolic equation algorithm is used to properly include the bathymetry and sub-bottom layering. Finally, the frequency dependence of the seabed attenuation is inferred by optimizing the model fit to long-range transmission loss data in the 50-3000 Hz band.
authors.forename: D P
authors.initials: DP
authors.lastname: Knobles
authors.forename: P S
authors.initials: PS
authors.lastname: Wilson
authors.forename: J A
authors.initials: JA
authors.lastname: Goff
authors.forename: S E
authors.initials: SE
authors.lastname: Cho
mesh_terms: D000162:Acoustics; D000465:Algorithms; D001267:Atlantic Ocean; D019015:Geologic Sediments / Q000737:chemistry*; D008962:Models, Theoretical; D009038:Motion; D009515:New Jersey; D016062:Porosity; D011825:Radar; D012822:Silicon Dioxide / Q000737:chemistry*; D013016:Sound; D013018:Sound Spectrography; D013997:Time Factors
chemical_list: D012822:Silicon Dioxide