气候变化领域集成服务门户(CCPortal): Optical polarization-based seismic and water wave sensing on transoceanic cables

CCPortal

DOI	10.1126/science.abe6648
	Optical polarization-based seismic and water wave sensing on transoceanic cables
	Zhan Z.; Cantono M.; Kamalov V.; Mecozzi A.; Müller R.; Yin S.; Castellanos J.C.
发表日期	2021
ISSN	0036-8075
起始页码	931
结束页码	936
卷号	371 期号:6532
英文摘要	Seafloor geophysical instrumentation is challenging to deploy and maintain but critical for studying submarine earthquakes and Earth's interior. Emerging fiber-optic sensing technologies that can leverage submarine telecommunication cables present an opportunity to fill the data gap. We successfully sensed seismic and water waves over a 10,000-kilometer-long submarine cable connecting Los Angeles, California, and Valparaiso, Chile, by monitoring the polarization of regular optical telecommunication channels. We detected multiple moderate-to-large earthquakes along the cable in the 10-millihertz to 5-hertz band. We also recorded pressure signals from ocean swells in the primary microseism band, implying the potential for tsunami sensing. Our method, because it does not require specialized equipment, laser sources, or dedicated fibers, is highly scalable for converting global submarine cables into continuous real-time earthquake and tsunami observatories. © 2021 American Association for the Advancement of Science. All rights reserved.
英文关键词	detection method; Indian Ocean tsunami 2004; instrumentation; polarization; seismic wave; submarine cable; telecommunication; tsunami; water wave; Article; California; earthquake; environmental monitoring; frequency modulation; geographic and geological phenomena; geographic distribution; polarization; pressure; remote sensing; sea; ship; signal processing; submarine; tectonics; telecommunication; tsunami; California; Chile; Los Angeles [California]; United States; Valparaiso [Chile]
语种	英语
来源期刊	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/246145
作者单位	Seismological Laboratory, Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA, United States; Google LLC, Mountain View, CA, United States; Department of Physical and Chemical Sciences, University of L'Aquila, Coppito, Italy
推荐引用方式 GB/T 7714	Zhan Z.,Cantono M.,Kamalov V.,et al. Optical polarization-based seismic and water wave sensing on transoceanic cables[J],2021,371(6532).
APA	Zhan Z..,Cantono M..,Kamalov V..,Mecozzi A..,Müller R..,...&Castellanos J.C..(2021).Optical polarization-based seismic and water wave sensing on transoceanic cables.Science,371(6532).
MLA	Zhan Z.,et al."Optical polarization-based seismic and water wave sensing on transoceanic cables".Science 371.6532(2021).