Distributed Acoustic Sensing measurement by using seafloor optical fiber cable system off Sanriku for seismic observation
Distributed Acoustic Sensing measurement by using seafloor optical fiber cable system off Sanriku for seismic observation
复制标题
使用三陆海底光纤电缆系统进行分布式声学传感测量以进行地震观测
DOI：
10.23919/oceans40490.2019.8962757
复制
发表时间：
2019
期刊：
影响因子：
--
通讯作者：
S. Kubota
中科院分区：
文献类型：
--
作者：
M. Shinohara;Tomoaki Yamada;T. Akuhara;K. Mochizuki;S. Sakai;Masayuki Hamakawa;T. Kasajima;T. Arioka;S. Kubota
近年来，利用光纤本身作为传感器的分布式声传感（DAS）测量变得流行起来。1996年，东京大学地震研究所在三陆附近部署了一个使用光纤电缆的海底地震海啸观测系统。系统有备用（暗）光纤，没有中继器。利用DAS技术开发海底地震观测系统，并将三陆电缆观测系统作为下一代海洋地震观测系统。2019年2月，我们利用三陆岛海底观测系统的暗光纤对DAS测量进行了试点观测。连续收集了大约46小时的数据，记录了许多地震，包括微地震和深地震。
Recently Distributed Acoustic Sensing (DAS) measurement which utilizes an optical fiber itself as a sensor becomes popular. In 1996, a seafloor seismic tsunami observation system using an optical fiber cable was deployed off Sanriku by Earthquake Research Institute, the University of Tokyo. The system has spare (dark) optical fibers without repeaters. We start development of a seafloor seismic observation system by the DAS technology with Sanriku cable observation system as a next generation of marine seismic observation system. In February 2019, we made a pilot observation of a DAS measurement using a dark fiber of Sanriku seafloor observation system. The data were collected continuously for about 46 hours and many earthquakes including micro-earthquakes and a deep earthquake were recorded.
使用通过电缆网络系统连接的钻孔站进行海底观测
DOI：
--
发表时间：
2004
期刊：
Chikyu Monthly 26
影响因子：
--
作者：
Mikada;H.;Saito;S.;Ienaga;M.;et al.
通讯作者：
et al.