T41F:
Seafloor Geodesy: Measuring Deformation of the Seabed II Posters


Submit an Abstract to this Session


Session ID#: 48712

Session Description:
Seafloor geodetic methods allow for measuring crustal deformation over Earth’s vast areas that are covered by water, and therefore inaccessible to standard geodetic techniques. Over the last decade, remarkable technological progress has been made to increase the precision and scales of observations, while improving the reliability and cost effectiveness of the instrumentation.

Unquestionably, seafloor geodetic measurements will continue to significantly advance our understanding of the motion and deformation of oceanic tectonic plates, earthquake processes in subduction zones, and the deformation of submarine volcanoes and spreading centers. Moreover, non-tectonic targets such as slope stability, underwater mass movements, extraction of hydrocarbons, and the sequestration of CO2 into the ocean floor can be monitored.

We invite abstracts that highlight seafloor geodetic (e.g. GPS/A, differential bathymetry, seafloor pressure, acoustic ranging, seismometry, gravity, tilt, and strain) measurement systems, data processing methods, observational results, and modeling studies.

Primary Convener:  Martin Heesemann, University of Victoria, Ocean Networks Canada, Victoria, BC, Canada
Conveners:  Kelin Wang, Pacific Geoscience Centre, Geological Survey of Canada, Sidney, BC, Canada, Yusaku Ohta, Tohoku University, Research Center for Prediction of Earthquakes and Volcanic Eruptions, Graduate School of Science, Sendai, Japan and Matthew James Cook, University of California, San Diego, Scripps Institution of Oceanography, La Jolla, CA, United States
Primary Liaison:  Martin Heesemann, University of Victoria, Ocean Networks Canada, Victoria, BC, Canada
Chairs:  Martin Heesemann, University of Victoria, Ocean Networks Canada, Victoria, BC, Canada, Matthew James Cook, University of California, San Diego, Scripps Institution of Oceanography, La Jolla, CA, United States and Yusaku Ohta, Tohoku University, Research Center for Prediction of Earthquakes and Volcanic Eruptions, Graduate School of Science, Sendai, Japan
OSPA Liaison:  Martin Heesemann, University of Victoria, Ocean Networks Canada, Victoria, BC, Canada
Co-Organized with:
Tectonophysics, Ocean Sciences, and Geodesy

Proposed Co-Organized Session with:
  • G - Geodesy
  • OS - Ocean Sciences
Index Terms:

1209 Tectonic deformation [GEODESY AND GRAVITY]
3050 Ocean observatories and experiments [MARINE GEOLOGY AND GEOPHYSICS]
8170 Subduction zone processes [TECTONOPHYSICS]
8194 Instruments and techniques [TECTONOPHYSICS]

Abstracts Submitted to this Session:

Development of seafloor real-time geodetic observatories in the Nankai Trough seismogenic zone for slow slip event detection. (456938)
Eiichiro Araki, Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Research Institute for Marine Geodynamics, Yokosuka, Japan, Toshinori Kimura, JAMSTEC, Yokosuka, Japan, Yuya Machida, Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Research Institute for Marine Geodynamics, Yokohama, Japan, Mark A Zumberge, University of California San Diego, Scripps Institution of Oceanography, La Jolla, CA, United States and Shuichi Kodaira, JAMSTEC Japan Agency for Marine-Earth Science and Technology, Yokosuka, Japan
Development of analysis method for ocean bottom crustal deformation by continuous observation using marine GNSS buoy (407535)
Natsuki Kinugasa, Nagoya University, Nagoya, Japan, Keiichi Tadokoro, Nagoya Univ., Nagoya, Japan, Yukihiro Terada, National Institute of Technology, Kochi College, Kochi, Japan, Teruyuki Kato, The University of Tokyo, Tokyo, Japan and Akira Futamura, National Institute of Technology, Yuge College, Ehime, Japan
Effect of tidal internal wave on GNSS-Acoustic positioning (461582)
Ryo Matsui, Tohoku University, Sendai, Japan and Motoyuki Kido, Tohoku University, International Research Institute of Disaster Science, Sendai, Japan
The Underwater Precise Positioning Strategy of the combined GNSS and acoustic technology (461585)
Yanxiong Liu1, Guanxu Chen2, Yang Liu1 and Weihong Zhang3, (1)First Institute of Oceanography, State Oceanic Administration, Qingdao, China, (2)Wuhan University, School of Geodesy and Geomatics, Wuhan, China, (3)the First Institute Oceanography, State Ocean Administration, Qingdao, China
Multiparameter techniques for seafloor vertical deformation assessment in the Campi Flegrei volcanic area (428996)
Giovanni Iannaccone1, Sergio Guardato2, Gian Paolo Donnarumma2, Prospero De Martino2, Francesco Chierici3, Adriano La Rocca2, Giovanni Macedonio2 and Laura Beranzoli4, (1)Istituto Nazionale di Geofisica e Vulcanologia, Palermo, Italy, (2)Istituto Nazionale di Geofisica e Vulcanologia, Napoli, Italy, (3)CNR National Institute for Astrophysics, Bologna, Italy, (4)Istituto Nazionale di Geofisica e Vulcanologia, Roma, Italy
Ground motion and its ocean bottom amplification in subduction zones (387485)
Yoshihiro Ito, Disaster Prevention Research Institute, Kyoto University, Kyoto, Japan, Yoshihiro Kaneko, Kyoto University, Department of Geophysics, Kyoto, Japan, Spahr C Webb, Lamont-Doherty Earth Observatory, Palisades, NY, United States, Laura M Wallace, University of Texas at Austin, Institute for Geophysics, Austin, United States and Ryota Hino, Tohoku University, Graduate School of Science, Sendai, Japan
APT: An easily deployed low-power tool for measuring acceleration, pressure, and temperature with wide dynamic range and bandwidth (360545)
Earl E Davis1, Martin Heesemann2, Joseph James Farrugia3, Greg Johnson4, Jerome M. Paros5, Jean-Michel Leconte4 and Samuel Coleman6, (1)Pacific Geoscience Center, Sidney, BC, Canada, (2)University of Victoria, Ocean Networks Canada, Victoria, BC, Canada, (3)Ocean Networks Canada, Victoria, BC, Canada, (4)RBR Ltd, Ottawa, ON, Canada, (5)Paroscientific, Inc. & Quartz Seismic Sensors, Inc., Redmond, WA, United States, (6)RBR Ltd., Ottawa, ON, Canada
Quantitative assessment of the “A-0-A” method based on the laboratory experiments: toward the accurate long-term OBP sensor drift estimation (402979)
Yui Nishimagi1, Yusaku Ohta2, Ryota Hino1, Syuichi Suzuki1, Makiko Sato1, Hiroaki Kajikawa3 and Tokihiko Kobata3, (1)Tohoku University, Graduate School of Science, Sendai, Japan, (2)Tohoku University, Research Center for Prediction of Earthquakes and Volcanic Eruptions, Graduate School of Science, Sendai, Japan, (3)National Institute of Advanced Industrial Science and Technology, Tsukuba, Japan
Reducing `Noise’ in Ocean Bottom Pressure Measurements in the Cascadia Subduction Zone (411102)
Bing He1, D Randolph Watts2, Karen L Tracey3, Kathleen A Donohue2 and Meng (Matt) Wei4, (1)University of Rhode Island, Narragansett, RI, United States, (2)Univ Rhode Island, Narragansett, United States, (3)Univ Rhode Island, Narragansett, RI, United States, (4)University of Rhode Island Narragansett Bay, Narragansett, United States

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