Optical interferometry-based array of seafloor environmental sensors using a transoceanic submarine cable

被引：93

作者：

Marra, G. ^{[1
]}

Fairweather, D. M. ^{[2
]}

Kamalov, V ^{[3
]}

Gaynor, P. ^{[1
]}

Cantono, M. ^{[3
]}

Mulholland, S. ^{[1
]}

Baptie, B. ^{[4
]}

Castellanos, J. C. ^{[3
]}

Vagenas, G. ^{[1
]}

Gaudron, J-O ^{[1
]}

Kronjager, J. ^{[1
]}

Hill, I. R. ^{[1
]}

Schioppo, M. ^{[1
]}

Edreira, I. Barbeito ^{[1
]}

Burrows, K. A. ^{[1
]}

Clivati, C. ^{[5
]}

Calonico, D. ^{[5
]}

Curtis, A. ^{[2
]}

机构：

[1] Natl Phys Lab NPL, Teddington, Middx, England

[2] Univ Edinburgh, Sch GeoSci, Edinburgh, Midlothian, Scotland

[3] Google LLC, Mountain View, CA USA

[4] British Geol Survey, Edinburgh, Midlothian, Scotland

[5] Ist Nazl Ric Metrol INRIM, Turin, Italy

来源：

SCIENCE | 2022年 / 376卷 / 6595期

基金：

英国工程与自然科学研究理事会; 英国自然环境研究理事会;

关键词：

FAULTS;

D O I：

10.1126/science.abo1939

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Optical fiber-based sensing technology can drastically improve Earth observations by enabling the use of existing submarine communication cables as seafloor sensors. Previous interferometric and polarizationbased techniques demonstrated environmental sensing over cable lengths up to 10,500 kilometers. However, measurements were limited to the integrated changes over the entire length of the cable. We demonstrate the detection of earthquakes and ocean signals on individual spans between repeaters of a 5860-kilometer-long transatlantic cable rather than the whole cable. By applying this technique to the existing undersea communication cables, which have a repeater-to-repeater span length of 45 to 90 kilometers, the largely unmonitored ocean floor could be instrumented with thousands of permanent real-time environmental sensors without changes to the underwater infrastructure.

引用

页码：874 / +

页数：31

共 30 条

[1]

Bergano N. S., 2016, UNDERSEA FIBER COMMU, V2, P427

[2]

Bernard E., 2010, ESA PUBLICATION, V1, P58

[3] Absolute Centroid Location of Submarine Earthquakes from 3D Waveform Modeling of Water Reverberations [J].