1997 Fiscal Year Final Research Report Summary
Development of Seafloor Positioning System for Crustal Dynamics Observation
| Project/Area Number |
07554016
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 展開研究 |
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| Research Field |
固体地球物理学
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| Research Institution | KYOTO UNIVERSITY |
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Principal Investigator |
ANDO Masataka DPRI,Kyoto Univ., Prof., 防災研究所, 教授 (80027292)
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| Co-Investigator(Kenkyū-buntansha) |
MURAKAMI Hideyuki Kaiyo electron co LTD.Cheif researcher, 海洋電子株式会社, 主任研究者
TSUDA Toshitaka Kyoto Univ.Prof., 超高層電波研究センター, 教授 (30115886)
KATAO Hiroshi DPRI.Kyoto Uni.Research Associate, 防災研究所, 助手 (80221878)
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| Project Period (FY) |
1995 – 1997
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| Keywords | Crustal deformation / seafloor positioning / GPS / accuracy |
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| Research Abstract |
Using the multiple acoustic ranging technique, which is described in Chapter 4, we can expect to reduce these uncertainties of the sound-speed structures. This technique is based on the code division multiple access technology and makes it possible to carry out acoustic ranging measurements to several seafloor references simultaneously.
According to the results of this study, we can expect to be able to locate the seafloor references with accuracy on 10 to 20 cm in the horizontal components within the area of about 100 km away from an on-land GPS reference site. Hence, the co-seismic crustal defamation with the large subduction-type earthquakes are expected to detect using the current seafloor positioning system. And more accurate seafloor positioning will be possible by improving the observation system.
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