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

研究成果: ジャーナルへの寄稿会議記事査読

1 被引用数 (Scopus)

抄録

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.

本文言語英語
ページ(範囲)765-769
ページ数5
ジャーナルOceans Conference Record (IEEE)
2
DOI
出版ステータス出版済み - 2003
イベントCelabrating the Past... Teaming Toward the Future - San Diego, CA., 米国
継続期間: 2003 9月 222003 9月 26

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