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Proceedings Papers

Long-Term Seafloor Electromagnetic Observation in the Northwest Pacific May Detect the Vector Geomagnetic Secular Variation

Authors:

H Toh ,

Data Analysis Center for Geomagnetism and Space Magnetism, Graduate School of Science, Kyoto University, Kitashirakawa’Oiwake-cho, Sakyo-ku, Kyoto 6068502 JAPAN
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Y Hamano,

Basic Research Program, IFREE, JAMSTEC, Natsushima, Yokosuka, Kanagawa 2370061 JAPAN
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T Goto,

Department of Civil and Earth Resources Engineering, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 6158540 JAPAN
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H Utada

Ocean Hemisphere Research Center, Earthquake Research Institute, University of Tokyo, Yayoi, Bunkyo-ku, Tokyo 1130032 JAPAN
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Abstract

Sea Floor ElectroMagnetic Stations (SFEMSs) are now operating at two deep seafloor sites called the 'WPB' and the 'NWP' in the West Philippine Basin and the Northwest Pacific Basin, respectively. One of the main objectives of the SFEMSs is to detect the geomagnetic secular variations on the deep seafloor where long-term geomagnetic observations have not so far been achieved. SFEMSs can measure the absolute geomagnetic total force as well as the geomagnetic vector field with precise attitude monitoring systems. The vector geomagnetic time-series that was observed for more than 5 years revealed that the westward drift of the equatorial dipole dominates in the geomagnetic secular variation at the NWP.
DOI: http://doi.org/10.2481/dsj.SS_IGY-004
How to Cite: Toh, H. et al., (2010). Long-Term Seafloor Electromagnetic Observation in the Northwest Pacific May Detect the Vector Geomagnetic Secular Variation. Data Science Journal. 9, pp.IGY100–IGY109. DOI: http://doi.org/10.2481/dsj.SS_IGY-004
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Published on 06 Mar 2010.
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