Collaborative Research: Continuous Acoustic and Volcanic Debris Records of the Deepest Explosive Submarine Eruption Ever Observed

合作研究：有史以来观测到的最深海底爆炸的连续声学和火山碎片记录

• 批准号: 1029664
• 负责人: Robert Dziak
• 金额: $ 8.81万
• 依托单位: Oregon State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-09-01 至 2012-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1029664&HistoricalAwards=false
• 关键词: Collaborative; Research; Continuous; Acoustic; Volcanic

While surface volcanic eruptions are both common and dramatic, by far the greatest volume of volcanic material is erupted on the seafloor, where they have not been observed, and remain poorly understood. Recent direct observations of eruptions at three sites in the western Pacific have provided a very rare glimpse of this type of activity. One site, West Mata in the Lau basin, was instrumented with a number of hydrophones to record acoustic signals (sound) from the eruption that can be used to gain insights into the eruptive process. This project has the aim of analyzing the data from a suite of four instruments to locate the sources of the acoustic signals, understand the sources of volcanic tremor, and correlate the acoustic activity with the production of volcanic ash and debris. Broader impacts include improved understanding of fundamental earth processes, public outreach and education.

虽然地表火山喷发既常见又戏剧性，但到目前为止，最大数量的火山物质是在海底喷发的，在那里没有人观察到，而且仍然知之甚少。最近对西太平洋三个地点喷发的直接观察提供了非常罕见的这种类型活动的一瞥。其中一个地点，刘盆地的西马塔，安装了许多水听器，记录喷发的声音信号，可以用来了解喷发过程。该项目的目的是分析一套四台仪器的数据，以确定声音信号的来源，了解火山震动的来源，并将声音活动与火山灰和碎片的产生联系起来。更广泛的影响包括更好地了解地球的基本过程、公众宣传和教育。