title: Mid-frequency acoustic propagation in shallow water on the New Jersey shelf: mean intensity.
abstract: Mid-frequency (1-10 kHz) sound propagation was measured at ranges 1-9 km in shallow water in order to investigate intensity statistics. Warm water near the bottom results in a sound speed minimum. Environmental measurements include sediment sound speed and water sound speed and density from a towed conductivity-temperature-depth chain. Ambient internal waves contribute to acoustic fluctuations. A simple model involving modes with random phases predicts the mean transmission loss to within a few dB. Quantitative ray theory fails due to near axial focusing. Fluctuations of the intensity field are dominated by water column variability.
authors.forename: Dajun
authors.initials: D
authors.lastname: Tang
authors.forename: Frank S
authors.initials: FS
authors.lastname: Henyey
authors.forename: Zhongkang
authors.initials: Z
authors.lastname: Wang
authors.forename: Kevin L
authors.initials: KL
authors.lastname: Williams
authors.forename: Daniel
authors.initials: D
authors.lastname: Rouseff
authors.forename: Peter H
authors.initials: PH
authors.lastname: Dahl
authors.forename: Jorge
authors.initials: J
authors.lastname: Quijano
authors.forename: Jee Woong
authors.initials: JW
authors.lastname: Choi
mesh_terms: D000162:Acoustics; D001267:Atlantic Ocean; D019015:Geologic Sediments; D008962:Models, Theoretical; D009038:Motion; D009515:New Jersey; D011825:Radar; D013016:Sound; D013018:Sound Spectrography; D013696:Temperature; D013997:Time Factors