Collaborative Research/EAGER: Toward Long-Distance Ocean and Seismic Sensing on Optical Telecommunications Infrastructure

合作研究/EAGER：在光通信基础设施上实现长距离海洋和地震传感

基本信息

批准号：
2211274
负责人：
Dale Winebrenner
金额：
$ 10.91万
依托单位：
University of Washington
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2022
资助国家：
美国
起止时间：
2022-02-01 至 2024-01-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=2211274&HistoricalAwards=false
关键词：
Collaborative Research EAGER Toward Long

项目摘要

The PIs request EAGER funding to test the feasibility of making undersea observations of seismic and oceanic processes across ocean basins on existing telecommunications cables. The project will provide partial support for two graduate students The PIs plan to compare three fiber-optical methods, Ultra-stable Laser Interferometry (ULI), Distributed Acoustic Sensing (DAS) and a long-range polarization-based method simultaneously on a telecom cable on the seafloor of Puget Sound, in Saratoga Passage, between Whidbey and Camano Island. The physics linking geophysics and ULI signals and other new techniques, like Distributed Acoustic Sensing (DAS) and the new long-range polarization-based method is limited and needs to be investigated further. There haven’t been field demonstrations showing the potential capability to resolve signals from earthquakes, tidal signals, or whale vocalizations. The current installation gives the PIs an ideal opportunity to compare the three fiber-optical methods simultaneously on a single cable with individual seismic signals arriving at various angles and varying tidal currents. These measurements would provide the first data on relative sensitivities and provide preliminary data to support future NSF proposals.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.

项目负责人请求 EAGER 资助，以测试利用现有电信电缆对跨洋盆地的地震和海洋过程进行海底观测的可行性。该项目将为两名研究生提供部分支持。项目负责人计划比较三种光纤方法、超稳定方法。激光干涉测量 (ULI)、分布式声学传感 (DAS) 和基于远程偏振的方法同时在普吉特海湾海底的电信电缆上进行位于 Whidbey 和 Camano 岛之间的萨拉托加海峡 (Saratoga Passage)，将地球物理学和 ULI 信号以及其他新技术（如分布式声学传感 (DAS) 和新的基于远程偏振的方法）联系起来的物理方法还很有限，需要进一步研究。现场演示显示了解析来自地震、潮汐信号或鲸鱼发声的信号的潜在能力，当前的安装为 PI 提供了同时比较三种光纤方法的理想机会。这些测量将提供有关相对灵敏度的第一批数据，并为支持未来的 NSF 提案提供初步数据。该奖项反映了 NSF 的法定使命，并被认为值得支持。通过使用基金会的智力优点和更广泛的影响审查标准进行评估。