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dc.contributor.authorIshikawa, Tadashi
dc.contributor.authorFujita, Masayuki
dc.contributor.authorMatsumoto, Yoshihiro
dc.date.accessioned2019-10-23T19:02:29Z
dc.date.available2019-10-23T19:02:29Z
dc.date.issued2006
dc.identifier.urihttp://hdl.handle.net/1834/15719
dc.description.abstractWe have been developing a system for detecting seafloor crustal movement by combining kinematic GPS and acoustic ranging techniques. The influence of underwater temperature structure on precision of seafloor positioning was examined.At sea area off Miyagi Prefecture, underwater temperature fluctuate rapidly with respect to time and space, especially in spring and autumn. This instability deteriorates the precision of measurement results of seafloor positioning. On the other hand, in summer, underwater temperature structure is stable and measurement results have enough precision. The underwater temperature structure in sea area along the Nankai Trough is more stable than that off Miyagi area. These measurement results of the stations situated along the Nankai Trough show higher precision. These results show that a good undersea condition leads to the good precision of a result. However, even when the undersea condition is unstable, an enough number of data lead an enough precision of result.en_US
dc.language.isojaen_US
dc.relation.urihttps://www1.kaiho.mlit.go.jp/GIJUTSUKOKUSAI/KENKYU/report/article.html#rhr42en_US
dc.titleThe influence of underwater temperature structure on seafloor positioningen_US
dc.typeJournal Contributionen_US
dc.bibliographicCitation.issue42en_US
dc.bibliographicCitation.titleReport of Hydrographic and Oceanographic Researchesen_US
dc.description.statusPublisheden_US
dc.format.pagerangepp. 15-30en_US
dc.type.refereedRefereeden_US
refterms.dateFOA2021-01-30T18:48:36Z


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