[S-CG45] Ocean Floor Geoscience

Sat. Jun 5, 2021 1:45 PM - 3:15 PM Ch.19 (Zoom Room 19)

convener:Kyoko Okino(Atmosphere and Ocean Research Institute, The University of Tokyo), Chairperson:Motoyuki Kido(International Research Institute for Disaster Science, Tohoku University), Fumiaki Tomita(Japan Agency for Marine-Earth Science and Technology)

Most of Earth's volcanism and much of its tectonic activity occur on and beneath the s eafloor. Various phenomena on the seafloor are closely linked to plate tectonics, Earth s tructure and dynamics, and also related to Earth's environments through the hydrosphe re and atmosphere. Seafloor rocks and sediments record Earth's evolution and heat an d material fluxes on the Earth. Ocean Floor Geoscience session covers a broad range of research on seafloor such as mid-ocean ridge process, subduction dynamics, arc magm atism, hot spot and LIPs, crustal movement and structure etc. Every field of researches and every approaches are welcomed.The session aims to encourage discussion among scientists from different study fields and to integrate our understanding of ocean floor. The session is co-chaired by K. Tadokoro (Nagoya Univ.), O. Ishizuka (AIST), T. Toki (Univ . Ryukyus), and N. Takahashi (JAMSTEC).

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1:45 PM - 2:00 PM

[SCG45-13] Preliminary results of ocean bottom pressure observation around Kikai submarine caldera, SW Japan

Yuko Asai¹, *Nobukazu Seama^1,2, Tomoko Hanyu², Tetsuo Matsuno^2,1, Hitoshi Hirose^3,1, Takuto Minami¹, Hiroko Sugioka^2,1 (1.Department of Planetology, Graduate School of Science, Kobe University, 2.Kobe Ocean Bottom Exploration Center, Kobe University, 3.Research Center for Urban Safety and Security, Kobe University)

2:00 PM - 2:15 PM

[SCG45-14] Characteristic of depth dependence and annual variation of OBP time series in DONET

*Hideto Otsuka¹, Yusaku Ohta¹, Ryota Hino¹, Tatsuya Kubota², Daisuke Inazu³ (1.Department of Geophysics, Graduate School of Science, Tohoku University, 2.National Research Institute for Earth Science and Disaster Resilience, 3.Department of Marine Resources and Energy, Tokyo University of Marine Science and Technology)

2:15 PM - 2:30 PM

[SCG45-15] GNSS-Acoustic observations using a Wave Glider and their results

*Fumiaki Tomita¹, Takeshi Iinuma¹, Motoyuki Kido², Yusaku Ohta³, Chie Honsho³, Tatsuya Fukuda¹, Takane Hori¹ (1.Japan Agency for Marine-Earth Science and Technology, 2.International Research Institute of Disaster Science, Tohoku University, 3.Graduate School of Science, Tohoku University)

2:30 PM - 2:45 PM

[SCG45-16] Semi-realtime transmission of GNSS-A data using a Wave Glider

*Motoyuki Kido¹, Tatsuya Fukuda², Yusaku Ohta³, Fumiaki Tomita², Chie Honsho³, Takeshi Iinuma² (1.IRIDeS, Tohoku University, 2.JAMSTEC, 3.Sci. Division, Tohoku University)

2:45 PM - 3:00 PM

[SCG45-17] Operation experiment of the system for seafloor crustal deformation observation system using a buoy

*Keiichi Tadokoro¹, Natsuki Kinugasa¹, Teruyuki Kato², Yukihiro Terada³, Kenjiro Matsuhiro⁴, Haruno Koike⁴ (1.Research Center for Seismology, Volcanology and Earthquake and Volcano Research Center, Nagoya University, 2.Hot Springs Research Institute of Kanagawa Prefectural Government, 3.National Institute of Technology, Kochi College, 4.Technical Center, Nagoya University)

3:00 PM - 3:15 PM

[SCG45-18] Initial results of sea trials on bathymetric survey performance of “AUV-NEXT”: aiming to acquire higher-quality bathymetric data

*MASANAO SUMIYOSHI¹, Ryosuke Nagasawa¹, Takashi Hashimoto¹, Kenji Nagahashi², Takao Sawa², Tadahiro Hyakudome², Takeshi Nakatani², Tatsuya Aso², Yusuke Yokota³ (1.Hydrographic and Oceanographic Department, Japan Coast Guard, 2.JAMSTEC, 3.Institute of Industrial Science, University of Tokyo)

Session information