S033
Seafloor Pressure Measurements for Seismology and Geodesy: Applications, Challenges, and Advances

Session ID#: 83277

Session Description:
Studies utilizing seafloor pressure measurements for seismological, geodetic and hazard studies have increased dramatically over the past decade. Early applications included seafloor compliance (measurement of deformation of the seafloor under ocean wave loading), measurements of volcano deflation during eruptions, and tsunami monitoring. More recent applications have extended to seafloor geodesy, infragravity wave studies, and array studies of the tsunami wavefield. Ongoing challenges, such as determining calibration and instrument drift, and environmental challenges, such as oceanographic noise removal, are areas of active research and are needed to fully take advantage of new data sets. We welcome contributions involving applications of seafloor pressure measurements to seismology, geodesy, and tsunami studies; advances in seafloor pressure instrumentation; studies addressing sources of noise; and novel modeling, inversion, or data processing approaches applicable to seafloor pressure data.
Index Terms:

1294 Instruments and techniques [GEODESY AND GRAVITY]
4594 Instruments and techniques [OCEANOGRAPHY: PHYSICAL]
7240 Subduction zones [SEISMOLOGY]
7294 Seismic instruments and networks [SEISMOLOGY]


Primary Convener:  Anne Sheehan, University of Colorado at Boulder, Department of Geological Sciences and Cooperative Institute for Research in Environmental Sciences (CIRES), Boulder, CO, United States
Conveners:  William S D Wilcock, University of Washington, School of Oceanography, Seattle, WA, United States, Dana Manalang, University of Washington, Applied Physics Lab, Seattle, WA, United States and Meng (Matt) Wei, University of Rhode Island Narragansett Bay, Narragansett, RI, United States
Primary Liaison:  Anne Sheehan, University of Colorado at Boulder, Department of Geological Sciences and Cooperative Institute for Research in Environmental Sciences (CIRES), Boulder, CO, United States
 
Seafloor pressure measurements over subduction zones to estimate vertical uplift at short and long time scales (Invited) (493517)
Spahr C Webb, Lamont Doherty Earth Observatory, Palisades, NY, United States
 
Time Scales of Variations in Seafloor Pressure Signals at Subduction Zone Margins from Simulations and In Situ Data (499798)
Emmanuel Soliman M Garcia1, Yoshihiro Ito1, Spahr C Webb2 and Tomohiro Inoue3, (1)Disaster Prevention Research Institute, Kyoto University, Kyoto, Japan, (2)Lamont Doherty Earth Observatory, Palisades, NY, United States, (3)Kyoto University, Kyoto, Japan
 
Near-fault ocean-bottom observation of an offshore earthquake by DONET: Array-based measurement of tsunami phase speed and early estimation of tsunami height (501051)
Ayumu Mizutani, Sapporo, Hokkaido, Japan and Kiyoshi Yomogida, Hokkaido University, Graduate School of Science, Sapporo, Japan
 
A Decade of High-resolution Ocean Bottom Pressure Measurements in the Northeast Pacific — The NEPTUNE Observatory Turns 10 years old (504425)
Martin Heesemann1, Joseph James Farrugia1, Earl Davis2, Richard Thomson3, Steven F Mihaly4, Alexander Rabinovich5 and Isaac Fine6, (1)Ocean Networks Canada, Victoria, BC, Canada, (2)Geological Survey of Canada, Pacific Geoscience Centre, Sidney, BC, Canada, (3)Inst Ocean Sciences, Sidney, BC, Canada, (4)University of Victoria, Victoria, BC, Canada, (5)Instituto de Estudos do Mar Almirante Paulo Moreira, Research, Arraial do Cabo, Brazil, (6)Institute of Ocean Sciences, Sidney, BC, Canada
 
Ultra-broadband observations of seismic and tsunami waves of ocean bottom pressure gauges off the NE Japan and spectral analysis combined with the records of seismometers and tide gauges (513265)
Tatsuya Kubota, Tatsuhiko Saito, Naotaka Yamamoto Chikasada and Wataru Suzuki, National Research Institute for Earth Science and Disaster Resilience, Tsukuba, Japan
 
Seafloor pressure measurement to evaluate inter-plate coupling in the Nankai Trough seismogenic zone (Invited) (513896)
Eiichiro Araki1, Yuya Machida2, Shuhei Nishida1, Toshinori Kimura3, Takashi Yokobiki3 and Shuichi Kodaira4, (1)JAMSTEC Japan Agency for Marine-Earth Science and Technology, Kanagawa, Japan, (2)Japan, Tokyo, Japan, (3)JAMSTEC, Yokosuka, Japan, (4)Yokohama National University, Yokohama, Japan
 
Development of the prototype system for the long-term OBP drift elimination using the “A-0-A” approach (530515)
Yusaku Ohta1, Ryota Hino1, Syuichi Suzuki2, Makiko Sato1, Hiroaki Kajikawa3 and Tokihiko Kobata3, (1)Tohoku University, Graduate School of Science, Sendai, Japan, (2)Tohoku University, Sendai, Japan, (3)National Institute of Advanced Industrial Science and Technology, Tsukuba, Japan
 
Frequency Limit for the Pressure Compliance Correction of Ocean-bottom Seismic Data (544387)
Chao An, Shanghai Jiao Tong University, Shanghai, China, Songqiao Shawn Wei, Michigan State University, Department of Earth and Environmental Sciences, East Lansing, MI, United States and Chen Cai, Sun Yat-Sen University, Guangzhou, China
 
Development of a Differential Pressure Gauge Calibration System (555972)
Glenn S Sasagawa1, Jonathan Berger2, John A Orcutt3 and Mark A Zumberge2, (1)University of California San Diego, La Jolla, CA, United States, (2)Univ California San Diego, La Jolla, CA, United States, (3)Univ. of California, San Diego, La Jolla, CA, United States
 
Testing the A-0-A Approach to Pressure Gauge Calibrations on Cabled Observatories (559401)
Dana Manalang1, William S D Wilcock2, Geoff Cram3, James Tilley4, Michael Harrington4 and Derek Martin4, (1)Applied Physics Laboratory University of Washington, Seattle, WA, United States, (2)University of Washington, School of Oceanography, Seattle, WA, United States, (3)University of Washington, Applied Physics Lab, Seattle, WA, United States, (4)Applied Physics Laboratory University of Washington, Seattle, United States
 
Improvement in detection of seafloor crustal deformation due to shallow SSE using ocean bottom pressure by removing broad-band tide components (575438)
Tomohiro Inoue1, Tomoya Muramoto2, Daisuke Inazu3, Yoshihiro Ito4, Ryota Hino5, Kazuaki Ohta4 and Syuichi Suzuki6, (1)Kyoto University, Kyoto, Japan, (2)National Institute of Advanced Industrial Science and Technology, Tsukuba-Shi, Japan, (3)Tokyo University of Marine Science and Technology, Tokyo, Japan, (4)Disaster Prevention Research Institute, Kyoto University, Kyoto, Japan, (5)Tohoku University, Graduate School of Science, Sendai, Japan, (6)Tohoku University, Sendai, Japan
 
Hydrophone as an accelerometer (576539)
Giovanni Iannaccone1, Giuseppe Pucciarelli2, Sergio Guardato2, Gian Paolo Donnarumma2, Giovanni Macedonio2 and Laura Beranzoli3, (1)Istituto Nazionale di Geofisica e Vulcanologia, Palermo, Italy, (2)Istituto Nazionale di Geofisica e Vulcanologia, Napoli, Italy, (3)Istituto Nazionale di Geofisica e Vulcanologia, Roma, Italy
 
Detect slow slip events in ocean bottom pressure data using machine learning (593372)
Bing He1, Meng (Matt) Wei2, D. Randolph Watts1, Kathleen A Donohue3 and Karen L Tracey3, (1)University of Rhode Island, Narragansett, RI, United States, (2)University of Rhode Island Narragansett Bay, Narragansett, RI, United States, (3)Univ Rhode Island, Narragansett, RI, United States
 
The ambient noise characteristics in the ocean bottom environment offshore Taiwan (600626)
PeiYing Patty Lin1, Jing-Hui Tong2, Chih-Ming Lin1 and Ban-Yuan Kuo3, (1)Department of Earth Sciences, National Taiwan Normal University, Taipei, Taiwan, (2)Department of Earth Sciences, National Central University, Jhongli, Taiwan, (3)Academia Sinica, Institute of Earth Sciences, Taipei, Taiwan
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