Progress in the project for development of GPS/acoustic technique over the last 4 years

Motoyuki Kido, Hiromi Fujimoto, Ryota Hino, Yusaku Ohta, Yukihito Osada, Takeshi Iinuma, Ryosuke Azuma, Ikuko Wada, Satoshi Miura, Syuichi Suzuki, Fumiaki Tomita, Misae Imano

Research output: Chapter in Book/Report/Conference proceedingConference contribution

8 Citations (Scopus)

Abstract

GPS/Acoustic (GPS/A) survey is the most promising way to detect crustal deformation in the ocean far from the coast, where a dense onshore GPS network is not available. Monitoring seafloor deformation is crucial to understand the tectonic state in regions of geophysical significance such as subduction zones. We, Tohoku University, together with Nagoya University and Japan Coast Guard have been dedicated to GPS/A survey around the Japanese Islands and developing its instruments for more than a decade. Especially in 2010, a new project for the development of the GPS/A technique commenced, and since 2012 following the Tohoku earthquake, further acceleration of the project has been taken place. Tohoku and Nagoya Universities have been working on this project for 4 years. In the project, Tohoku University worked on several topics, such as realtime/continuous monitoring of crustal deformation using a moored buoy, automatic survey using an Autonomous Surface Vehicle (ASV), which makes the survey as efficient as possible, and constructing a new GPS/acoustic survey network along the Japan Trench and their intensive survey using a chartered ship. In this paper, we summarize the achievements in each of the topics above.

Original languageEnglish
Title of host publicationInternational Symposium on Geodesy for Earthquake and Natural Hazards (GENAH) - Proceedings of the International Symposium on Geodesy for Earthquake and Natural Hazards (GENAH)
EditorsManabu Hashimoto
PublisherSpringer Verlag
Pages3-10
Number of pages8
ISBN (Print)9783319397672
DOIs
Publication statusPublished - 2017 Jan 1
EventProceedings of the International Symposium on Geodesy for Earthquake and Natural Hazards, GENAH 2014 - Matsushima, Japan
Duration: 2014 Jul 222014 Jul 26

Publication series

NameInternational Association of Geodesy Symposia
Volume145
ISSN (Print)0939-9585

Other

OtherProceedings of the International Symposium on Geodesy for Earthquake and Natural Hazards, GENAH 2014
CountryJapan
CityMatsushima
Period14/7/2214/7/26

Keywords

  • Crustal deformation
  • GPS/acoustic
  • Seafloor geodesy
  • Tohoku-oki earthquake

ASJC Scopus subject areas

  • Computers in Earth Sciences
  • Geophysics

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    Kido, M., Fujimoto, H., Hino, R., Ohta, Y., Osada, Y., Iinuma, T., Azuma, R., Wada, I., Miura, S., Suzuki, S., Tomita, F., & Imano, M. (2017). Progress in the project for development of GPS/acoustic technique over the last 4 years. In M. Hashimoto (Ed.), International Symposium on Geodesy for Earthquake and Natural Hazards (GENAH) - Proceedings of the International Symposium on Geodesy for Earthquake and Natural Hazards (GENAH) (pp. 3-10). (International Association of Geodesy Symposia; Vol. 145). Springer Verlag. https://doi.org/10.1007/1345_2015_127