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Mapping the sound field of an erupting submarine volcano using an acoustic glider
Ist Teil von
The Journal of the Acoustical Society of America, 2011-03, Vol.129 (3), p.EL94-EL99
Ort / Verlag
Melville, NY: Acoustical Society of America
Erscheinungsjahr
2011
Quelle
American Institute of Physics
Beschreibungen/Notizen
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 spa
tial 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.