Collaborative Research: Real-Time Volcanic Event Detection on Northeast Pacific Spreading Centers Using Military Hydrophone Arrays

合作研究：使用军用水听器阵列对东北太平洋传播中心进行实时火山事件探测

• 批准号: 0623649
• 负责人: Robert Dziak
• 金额: $ 39.85万
• 依托单位: Oregon State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2006
• 资助国家: 美国
• 起止时间: 2006-10-01 至 2010-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0623649&HistoricalAwards=false
• 关键词: Collaborative; Research; Real; Time; Volcanic

Continuing a time series that commenced in 1991, the researchers will take advantage of a U.S. Navy hydrophone array (SOSUS) in the North Pacific to conduct a range of seismic/acoustic studies relevant to ridge crest processes. By analyzing T-phase data recorded at the hydrophones, the researchers will study seismic events on the Gorda, Juan de Fuca, and Explorer ridge systems, compile a catalog of small earthquakes in the circum-North Pacific region, link seismic events to tectonic/biological changes at the ridge crests, and monitor cetacean and anthropogenic noise in the deep ocean. A fundamental goal of the project is to provide the data on which to base rapid response cruises under the auspices of the RIDGE2000 time-critical studies program. The project will be coupled with both continuous monitoring and individual cruises that will measure vent chemistry and biological processes at the Juan de Fuca ridge crest, thus making possible potential links between the spatiotemporal distribution of seismic deformation and chemical and biological events. Broader impacts include service to the RIDGE2000 community, training of students, outreach through the build-a-hydrophone program, strengthened collaboration with U.S. government partners (U.S. Navy and NOAA), and continuation of a time series that may eventually prove important to observatory efforts.

研究人员将继续1991年开始的时间序列，利用北太平洋的美国海军水听器阵列（SOSUS）进行一系列与脊峰过程相关的地震/声学研究。通过分析水听器记录的t相数据，研究人员将研究Gorda、Juan de Fuca和Explorer海脊系统的地震事件，编制环北太平洋地区的小地震目录，将地震事件与海脊顶部的构造/生物变化联系起来，并监测深海中的鲸类和人为噪音。该项目的一个基本目标是在RIDGE2000时间关键研究计划的支持下，提供基于快速反应巡航的数据。该项目将与连续监测和单独巡航相结合，测量Juan de Fuca山脊顶部的喷口化学和生物过程，从而可能在地震变形的时空分布与化学和生物事件之间建立潜在的联系。更广泛的影响包括为RIDGE2000社区提供服务、培训学生、通过建造水听器项目进行推广、加强与美国政府合作伙伴（美国海军和NOAA）的合作，以及延续可能最终证明对观测工作很重要的时间序列。