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发的连续声学和火山碎片记录

• 批准号: 1029278
• 负责人: DelWayne Bohnenstiehl
• 金额: $ 6.66万
• 依托单位: North Carolina 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 2012-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1029278&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剧烈，但迄今为止，最大量的火山物质是在海底喷发的，在那里没有观察到火山喷发，而且人们对火山喷发的了解仍然很少。最近对西太平洋三个地点的火山爆发进行的直接观察提供了对这类活动的非常罕见的一瞥。一个网站，西马塔在劳盆地，是仪器与一些水听器记录声信号（声音）从喷发，可用于获得洞察喷发过程。该项目的目的是分析一套四台仪器的数据，以确定声学信号的来源，了解火山震动的来源，并将声学活动与火山灰和碎片的产生联系起来。更广泛的影响包括提高对基本地球过程的理解、公众宣传和教育。