The underwater noise emission from glacier calving is investigated by integrating acoustic and photographic observations made in a glacial bay and model pool. Similarities in the impact noise in these two settings are identified. Distinct fluid-dynamics processes are involved in sound generation: iceberg detachment, water entry, entrainment and collective oscillation of a bubble cloud, secondary impacts due to splashes, and calving-induced wave action. The lag between initial impact and bubble plume pinch-off from the subsurface cavity depends on ice block dimensions and drop height and may be useful in reducing errors in estimates of calving fluxes made using underwater sound.

中文翻译：

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冰川崩塌产生的水下噪声：现场观察和水池实验。

通过整合在冰川湾和模型池中进行的声学和摄影观察，研究了冰川崩塌产生的水下噪声。确定了这两种设置下撞击声的相似性。声音的产生涉及独特的流体动力学过程：冰山分离，水进入，气泡云的夹带和集体振荡，由于飞溅引起的二次冲击以及弯曲引起的波浪作用。初始撞击与气泡从地下腔内被夹断之间的时滞取决于冰块的尺寸和滴落高度，对于减少使用水下声音产生的产气通量的估计误差可能很有用。