Mid-scale RI-1 (M1:DP): Design and Construction of a New Generation of Ocean-Bottom Seismographs for the U.S. Academic Community

中型 RI-1 (M1:DP)：为美国学术界设计和建造新一代海底地震仪

• 批准号: 2131932
• 负责人: John Collins
• 金额: $ 649.61万
• 依托单位: Woods Hole Oceanographic Institution
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2021
• 资助国家: 美国
• 起止时间: 2021-10-01 至 2024-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2131932&HistoricalAwards=false
• 关键词: Mid; scale; RI; M1; DP

Understanding Earth processes, such as mantle dynamics and plate tectonics, and the phenomena they produce, such as earthquakes, volcanoes, and planet-scale elemental cycling, requires sustained deployments of seafloor instruments because about 70% of Earth's surface is covered by the oceans. While data from land-based instruments can tell us much about large-scale structure and earthquake activity under the oceans, many questions related to the structure and dynamics of mid-ocean ridges, hot-spots, subduction zones, and continental margins can only be addressed by data acquired with Ocean Bottom Seismometers (OBSs). Discovery is advanced by an efficient, effective means for scientists to acquire ocean-bottom seismic data.The Ocean Bottom Seismometer Instrument Center (OBSIC) at Woods Hole Oceanographic Institution (WHOI) provides seafloor seismographs and at-sea technical support to all U.S. investigators whose research would benefit from seafloor seismic observations. OBSIC currently operates a fleet of 144 Ocean-Bottom Seismographs (OBS). The existing fleet of OBS, however, is mostly old, heterogeneous, expensive to maintain and operate, and inadequate to meet the current and future needs of the seismological community. This award is to meet the demand of the U.S. seismological community for a fleet of modern, uniform, high-performance, seafloor seismic instrumentation that results in higher quality data and lower experiment costs, and lower maintenance and operational costs. The award will generate a proven design for a new generation of OBS and will result in 35 broadband/wideband OBS built to this new design.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

了解地球过程（例如地幔动力学和板块构造）及其产生的现象（例如地震、火山和行星尺度的元素循环）需要持续部署海底仪器，因为大约 70% 的地球表面被海洋覆盖。虽然来自陆基仪器的数据可以告诉我们很多有关海底大规模结构和地震活动的信息，但与洋中脊、热点、俯冲带和大陆边缘的结构和动力学有关的许多问题只能通过通过海底地震仪（OBS）获取的数据来解决。科学家通过一种高效、有效的手段获取海底地震数据来推进探索。伍兹霍尔海洋研究所 (WHOI) 的海底地震仪仪器中心 (OBSIC) 为所有美国研究人员提供海底地震仪和海上技术支持。研究将受益于海底地震观测。 OBSIC 目前运营着一支由 144 台海底地震仪 (OBS) 组成的舰队。 然而，现有的 OBS 机群大多陈旧、异构、维护和运营成本昂贵，不足以满足地震界当前和未来的需求。该奖项是为了满足美国地震界对现代化、统一、高性能海底地震仪器的需求，从而获得更高质量的数据、更低的实验成本以及更低的维护和运营成本。该奖项将为新一代 OBS 提供经过验证的设计，并将根据该新设计构建 35 个宽带/宽带 OBS。该奖项反映了 NSF 的法定使命，并通过使用基金会的智力优势和更广泛的评估进行评估，被认为值得支持。影响审查标准。