GPS/acoustic seafloor positioning experiment in the subduction zone of the Japan trench

Hiromi Fujimoto; Satoshi Miura; Aaron Sweeney; Minoru Ito; Yukihito Osada; Toshihiko Kanazawa

doi:10.1109/oceans.2003.178411

GPS/acoustic seafloor positioning experiment in the subduction zone of the Japan trench

Hiromi Fujimoto, Satoshi Miura, Aaron Sweeney, Minoru Ito, Yukihito Osada, Toshihiko Kanazawa

SCI - Research Center for Prediction of Earthquakes and Volcanic Eruptions (RCPEVE)

Research output: Contribution to journal › Conference article › peer-review

Abstract

Planning to make in situ observations of seismic coupling and motion of the Pacific Plate near the Japan Trench (about 200 km from the coast), we deployed three precision acoustic transponders (PXPs) in 2001 on both the Pacific plate (70 km from the trench axis at a depth of 5450 m) and the landward slope (70 km from the axis at a depth of 2800 m). The PXP system was developed for the full ocean depth in collaboration with a group at the Scripps Institution of Oceanography. We confirmed precise ranging up to a 15 km slant range with the PXPs. We obtained an accuracy of 2-3 cm for the sea-surface kinematic GPS positioning at a baseline length of 350 km. We have confirmed the anchor stability through visual inspection of PXPs deployed on thick sediment of the old Pacific Plate.

Original language	English
Pages (from-to)	765-769
Number of pages	5
Journal	Oceans Conference Record (IEEE)
Volume	2
DOIs	https://doi.org/10.1109/oceans.2003.178411
Publication status	Published - 2003
Event	Celabrating the Past... Teaming Toward the Future - San Diego, CA., United States Duration: 2003 Sept 22 → 2003 Sept 26

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10.1109/oceans.2003.178411

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title = "GPS/acoustic seafloor positioning experiment in the subduction zone of the Japan trench",

abstract = "Planning to make in situ observations of seismic coupling and motion of the Pacific Plate near the Japan Trench (about 200 km from the coast), we deployed three precision acoustic transponders (PXPs) in 2001 on both the Pacific plate (70 km from the trench axis at a depth of 5450 m) and the landward slope (70 km from the axis at a depth of 2800 m). The PXP system was developed for the full ocean depth in collaboration with a group at the Scripps Institution of Oceanography. We confirmed precise ranging up to a 15 km slant range with the PXPs. We obtained an accuracy of 2-3 cm for the sea-surface kinematic GPS positioning at a baseline length of 350 km. We have confirmed the anchor stability through visual inspection of PXPs deployed on thick sediment of the old Pacific Plate.",

author = "Hiromi Fujimoto and Satoshi Miura and Aaron Sweeney and Minoru Ito and Yukihito Osada and Toshihiko Kanazawa",

year = "2003",

doi = "10.1109/oceans.2003.178411",

language = "English",

volume = "2",

pages = "765--769",

journal = "Oceans Conference Record (IEEE)",

issn = "0197-7385",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

note = "Celabrating the Past... Teaming Toward the Future ; Conference date: 22-09-2003 Through 26-09-2003",

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TY - JOUR

T1 - GPS/acoustic seafloor positioning experiment in the subduction zone of the Japan trench

AU - Fujimoto, Hiromi

AU - Miura, Satoshi

AU - Sweeney, Aaron

AU - Ito, Minoru

AU - Osada, Yukihito

AU - Kanazawa, Toshihiko

PY - 2003

Y1 - 2003

N2 - Planning to make in situ observations of seismic coupling and motion of the Pacific Plate near the Japan Trench (about 200 km from the coast), we deployed three precision acoustic transponders (PXPs) in 2001 on both the Pacific plate (70 km from the trench axis at a depth of 5450 m) and the landward slope (70 km from the axis at a depth of 2800 m). The PXP system was developed for the full ocean depth in collaboration with a group at the Scripps Institution of Oceanography. We confirmed precise ranging up to a 15 km slant range with the PXPs. We obtained an accuracy of 2-3 cm for the sea-surface kinematic GPS positioning at a baseline length of 350 km. We have confirmed the anchor stability through visual inspection of PXPs deployed on thick sediment of the old Pacific Plate.

AB - Planning to make in situ observations of seismic coupling and motion of the Pacific Plate near the Japan Trench (about 200 km from the coast), we deployed three precision acoustic transponders (PXPs) in 2001 on both the Pacific plate (70 km from the trench axis at a depth of 5450 m) and the landward slope (70 km from the axis at a depth of 2800 m). The PXP system was developed for the full ocean depth in collaboration with a group at the Scripps Institution of Oceanography. We confirmed precise ranging up to a 15 km slant range with the PXPs. We obtained an accuracy of 2-3 cm for the sea-surface kinematic GPS positioning at a baseline length of 350 km. We have confirmed the anchor stability through visual inspection of PXPs deployed on thick sediment of the old Pacific Plate.

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U2 - 10.1109/oceans.2003.178411

DO - 10.1109/oceans.2003.178411

M3 - Conference article

AN - SCOPUS:1542716841

SN - 0197-7385

VL - 2

SP - 765

EP - 769

JO - Oceans Conference Record (IEEE)

JF - Oceans Conference Record (IEEE)

T2 - Celabrating the Past... Teaming Toward the Future

Y2 - 22 September 2003 through 26 September 2003

ER -

GPS/acoustic seafloor positioning experiment in the subduction zone of the Japan trench

Abstract

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