Cooperative Institute for Marine Resources Studies, Oregon State University, 2115 SE OSU Dr, Newport, Oregon 9736-5258, USA.
J Acoust Soc Am. 2011 Mar;129(3):EL94-9. doi: 10.1121/1.3547720.
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.
一架带有声学数据记录仪的水下滑翔机飞向位于北劳盆地的一座新发现的正在喷发的海底火山。由于火山提供了一个宽带声源，为期两天的调查记录产生了一个二维声级图，跨度为 1 公里（深度）× 40 公里（距离）。观测到的声场表现出深度和距离的依赖性，一阶空间模式与距离相关传播模型的预测一致。研究结果限制了火山活动的声源级，并表明滑翔机为监测自然和人为海洋声音提供了一个有效的平台。
