Solid Earth Sciences (S)
Session Sub-category Technology & Techniques(TT)
Session ID S-TT36
Title Applying optic fiber sensing to earth science
Short Title Applying optic fiber sensing
Main Convener Name Kentaro Emoto
Affiliation Graduate School of Science, Kyushu University
Co-Convener 1 Name Takeshi Tsuji
Affiliation Department of Systems Innovation, the University of Tokyo
Co-Convener 2 Name Masatoshi Miyazawa
Affiliation Disaster Prevention Research Institute, Kyoto University
Co-Convener 3 Name Eiichiro Araki
Affiliation Japan Agency for Marine-Earth Science and Technology
Session Language 
J
Scope 
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.
Presentation Format Oral and Poster presentation
Invited Authors Takashi Tonegawa (Research and Development center for Earthquake and Tsunami, Japan Agency for Marine-Earth Science and Technology)
Time Presentation No Title Presenter
Oral Presentation May 27 AM1
09:00 - 09:15 STT36-01 High-frequency tsunamis generated near Torishima island, Japan, observed by distributed acoustic sensing Takashi Tonegawa
09:15 - 09:30 STT36-02 Real-time seismic observation around the Tsugaru Strait based on automatic arrival time picking and hypocenter location using distributed acoustic sensing data Satoru Baba
09:30 - 09:45 STT36-03 Seismic observation using the seafloor optical fiber cable with distributed acoustic sensing in the Japan Sea Masanao Shinohara
09:45 - 10:00 STT36-04 Elastic full waveform inversion for active seismic data acquired with seafloor DAS technology Masanori Tani
10:00 - 10:15 STT36-05 Continuous- spatiotemporal strain measurement for geomechanical modeling using Distributed Fiber Optic Strain Sensing at geologic CO2 storage sites Rasha Amer
Oral Presentation May 27 AM2
10:45 - 11:00 STT36-06 Estimation of the focal mechanism of earthquakes beneath optic fiber cable with DAS Yuki Funabiki
11:00 - 11:15 STT36-07 Estimation of shallow seismic velocity structure along National Route 47 using traffic noise in DAS records Katsuhiro Yabu
11:15 - 11:30 STT36-08 Estimation of temporal changes in seismic velocities at Sakurajima based on seismic interferometry analysis of DAS data Takashi Hirose
11:30 - 11:45 STT36-09 Development of a Ground Monitoring Method Using Optical Fiber DAS and Microtremor Survey (No.2) Hiroyuki Fujiwara
11:45 - 12:00 STT36-10 Development of the Earthquake Early Warning Utilizing DAS with Optical Fiber Cables along the Shinkansen Railway Satoshi Katakami
Presentation No Title Presenter
Poster Presentation May 27 PM3
STT36-P01 Vibration Monitoring in the Off-Tonankai Cable by Distributed Acoustic Sensing (2) Masayuki Tanaka
STT36-P02 Relationship between surface ground motion and strain observed by a borehole fiber optic strainmeter Shuhei Tsuji
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 Matsumoto
STT36-P04 Development of seafloor fiber-optic sensing cable for distributed strain, pressure, temperature observation. Eiichiro Araki
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 Yamahana
STT36-P06 Estimation of 2D strain tensors using DAS data around fiber bending points Hisashi Nakahara
STT36-P07 Love Wave Detection and FK Analysis of Distributed Acoustic Sensing Data (DAS) from the Sakurajima Network Syed Idros Bin Abdul Rahman
STT36-P08 Test Observation and Analysis of Traffic Moving Objects and Traffic Anomalies on National Route Using Optical Fiber DAS Hiromitsu Nakamura
STT36-P09 Relationship between strain detected by DAS observation at Sakurajima and surface geology Kohei Yonemori
STT36-P10 Technical reports on distributed acoustic sensing measurements of the Noto Peninsula earthquake swarm in 2023 Masatoshi Miyazawa
STT36-P11 Estimation of shallow structure along the Hinagu fault from the DAS observation Satoru Hamanaka