title: Mapping the sound field of an erupting submarine volcano using an acoustic glider.
abstract: An underwater glider with an acoustic data logger flew toward a recently discovered erupting submarine volcano in the northern Lau basin. With the volcano providing a wide-band sound source, recordings from the two-day survey produced a two-dimensional sound level map spanning 1 km (depth) × 40 km(distance). The observed sound field shows depth- and range-dependence, with the first-order spatial pattern being consistent with the predictions of a range-dependent propagation model. The results allow constraining the acoustic source level of the volcanic activity and suggest that the glider provides an effective platform for monitoring natural and anthropogenic ocean sounds.
authors.affiliation: Cooperative Institute for Marine Resources Studies, Oregon State University, 2115 SE OSU Dr, Newport, Oregon 9736-5258, USA. haru.matsumoto@oregonstate.edu
authors.forename: Haru
authors.initials: H
authors.lastname: Matsumoto
authors.forename: Joseph H
authors.initials: JH
authors.lastname: Haxel
authors.forename: Robert P
authors.initials: RP
authors.lastname: Dziak
authors.forename: Delwayne R
authors.initials: DR
authors.lastname: Bohnenstiehl
authors.forename: Robert W
authors.initials: RW
authors.lastname: Embley
mesh_terms: D000162:Acoustics / Q000295:instrumentation*; D004867:Equipment Design; D005844:Geology / Q000295:instrumentation* / Q000379:methods; D009038:Motion; D009622:Noise; D009792:Oceans and Seas; D012815:Signal Processing, Computer-Assisted; D013018:Sound Spectrography; D013997:Time Factors; D018707:Volcanic Eruptions; D014867:Water
chemical_list: D014867:Water