[S-TT36] Applying optic fiber sensing to earth science

Mon. May 27, 2024 5:15 PM - 6:45 PM Poster Hall (Exhibition Hall 6, Makuhari Messe)

convener:Kentaro Emoto(Graduate School of Science, Kyushu University), Takeshi Tsuji(Department of Systems Innovation, the University of Tokyo), Masatoshi Miyazawa(Disaster Prevention Research Institute, Kyoto University), Eiichiro Araki(Japan Agency for Marine-Earth Science and Technology)

Optic fiber sensing measurement for strain, vibration, and thermal data acquisitions is applied not only in engineering and exploration geophysics as a developer, but also in research fields of earth science, including seismology, geodesy, and volcanology. These techniques, such as DAS, DSS, and DTS, provide high performance, achieving the high-density and high-sensitive measurements for onshore/offshore earth science observations that can overwhelm conventional measurements. On the other hand, there are still issues in performing integrated analysis of optical fiber sensing strain data with velocity/acceleration seismographs. The goals of this session are to contribute to the development of earth science based on sharing and discussing ideas on observations, methods for analyzing data, and broad studies related to the applications, which can mutually help advance each study with respect to optic fiber sensing.

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5:15 PM - 6:45 PM

[STT36-P01] Vibration Monitoring in the Off-Tonankai Cable by Distributed Acoustic Sensing (2)

*Masayuki Tanaka¹ (1.Meteorological Research Institute)

5:15 PM - 6:45 PM

[STT36-P02] Relationship between surface ground motion and strain observed by a borehole fiber optic strainmeter

*Shuhei Tsuji¹, Eiichiro Araki¹, Hiroyuki Matsumoto¹, Yuya Machida¹, Takashi Yokobiki¹ (1.Japan Agency for Marine-Earth Science and Technology)

5:15 PM - 6:45 PM

[STT36-P03] Pore fluid pressure change observed by a fiber optic strainmeter in the 20-m borehole of the Kamioka Mine after the 2024 Noto Peninsula Earthquake

*Hiroyuki Matsumoto¹, Eiichiro Araki¹, Shuhei Tsuji¹, Yuya Machida¹, Takashi Yokobiki¹, Keisuke Ariyoshi¹ (1.Japan Agency for Marine-Earth Science and Technology)

5:15 PM - 6:45 PM

[STT36-P04] Development of seafloor fiber-optic sensing cable for distributed strain, pressure, temperature observation.

*Eiichiro Araki¹, Takashi Yokobiki¹, Shuhei Tsuji¹, Shuhei Nishida¹, Hiroyuki Matsumoto¹ (1.Japan Agency for Marine-Earth Science and Technology)

5:15 PM - 6:45 PM

[STT36-P05] Application of a deep-learning method to seafloor distributed acoustic sensing data off Sanriku for automatic picking of P- and S-waves

*Hiroaki Yamahana¹, Masanao Shinohara² (1.Graduate School of Science, The University of Tokyo, 2.Earthquake Research Institute, The University of Tokyo)

5:15 PM - 6:45 PM

[STT36-P06] Estimation of 2D strain tensors using DAS data around fiber bending points

*Hisashi Nakahara¹, Takeshi Nishimura¹, Kimiko Taguchi¹, Takashi Hirose¹, Katsuhiro Yabu¹, Haruhisa Nakamichi², Kentaro Emoto³, Satoru Hamanaka³ (1.Solid Earth Physics Laboratory, Department of Geophysics, Graduate School of Science, Tohoku University, 2.DPRI, Kyoto University, 3.Graduate School of Science, Kyushu University)

5:15 PM - 6:45 PM

[STT36-P07] Love Wave Detection and FK Analysis of Distributed Acoustic Sensing Data (DAS) from the Sakurajima Network

*Syed Idros Bin Abdul Rahman¹, Kentaro Emoto¹, Takeshi Nishimura², Haruhisa Nakamichi³, Kimiko Taguchi², Hisashi Nakahara², Takashi Hirose², Satoru Hamanaka¹ (1.Kyushu University, 2.Tohoku University, 3.Kyoto University)

5:15 PM - 6:45 PM

[STT36-P08] Test Observation and Analysis of Traffic Moving Objects and Traffic Anomalies on National Route Using Optical Fiber DAS

*Hiromitsu Nakamura¹, Hiroyuki Fujiwara¹, Shohei Naito¹, Ken Sakurai², Chisato Konishi², Haruhiko Suzuki², Naoto Ogawa², Masaki Takebe³ (1.National Research Institute for Earth Science and Disaster Resilience, 2.OYO Corporation, 3.Mitsubishi Electric Software Corporation)

5:15 PM - 6:45 PM

[STT36-P09] Relationship between strain detected by DAS observation at Sakurajima and surface geology

*Kohei Yonemori¹, Takeshi Nishimura², Haruhisa Nakamichi³, Hisashi Nakahara⁴, Kimiko Taguchi², Kentaro Emoto¹, Satoru Hamanaka¹ (1.Graduate School of Science , Kyushu University, 2.Department of Geophysics, Graduate School of Science, Tohoku University, 3.Sakurajima Volcano Research Center, Disaster Prevention Research Institute, Kyoto University, 4.Solid Earth Physics Laboratory, Department of Geophysics, Graduate School of Science, Tohoku University)

5:15 PM - 6:45 PM

[STT36-P10] Technical reports on distributed acoustic sensing measurements of the Noto Peninsula earthquake swarm in 2023

*Masatoshi Miyazawa¹, Eiichiro Araki², Yoshiyuki Tanaka³ (1.Kyoto University, 2.JAMSTEC, 3.Univ. of Tokyo)

5:15 PM - 6:45 PM

[STT36-P11] Estimation of shallow structure along the Hinagu fault from the DAS observation

*Satoru Hamanaka¹, Kentaro Emoto² (1.Department of Earth and Planetary Sciences, Graduate School of Science, Kyushu University, 2.Faculty of Science, Kyushu University)

Session information

[S-TT36] Applying optic fiber sensing to earth science

[STT36-P01] Vibration Monitoring in the Off-Tonankai Cable by Distributed Acoustic Sensing (2)

[STT36-P02] Relationship between surface ground motion and strain observed by a borehole fiber optic strainmeter

[STT36-P03] Pore fluid pressure change observed by a fiber optic strainmeter in the 20-m borehole of the Kamioka Mine after the 2024 Noto Peninsula Earthquake

[STT36-P04] Development of seafloor fiber-optic sensing cable for distributed strain, pressure, temperature observation.

[STT36-P05] Application of a deep-learning method to seafloor distributed acoustic sensing data off Sanriku for automatic picking of P- and S-waves

[STT36-P06] Estimation of 2D strain tensors using DAS data around fiber bending points

[STT36-P07] Love Wave Detection and FK Analysis of Distributed Acoustic Sensing Data (DAS) from the Sakurajima Network

[STT36-P08] Test Observation and Analysis of Traffic Moving Objects and Traffic Anomalies on National Route Using Optical Fiber DAS

[STT36-P09] Relationship between strain detected by DAS observation at Sakurajima and surface geology

[STT36-P10] Technical reports on distributed acoustic sensing measurements of the Noto Peninsula earthquake swarm in 2023

[STT36-P11] Estimation of shallow structure along the Hinagu fault from the DAS observation

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