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北海道大学地球物理学研究報告 = Geophysical bulletin of Hokkaido University >
第81号 >


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タイトル: 十勝岳重力観測網での2機種の相対重力計による測定値の比較
その他のタイトル: Comparison of gravity measurement values between two relative gravimeter models in Tokachi-dake volcano
著者: 岡田, 和見 著作を一覧する
高橋, 浩晃 著作を一覧する
一柳, 昌義 著作を一覧する
岡崎, 紀俊 著作を一覧する
高木, 朗充 著作を一覧する
発行日: 2018年 3月19日
出版者: 北海道大学大学院理学研究院
誌名: 北海道大学地球物理学研究報告 = Geophysical bulletin of Hokkaido University
巻: 81
開始ページ: 27
終了ページ: 32
抄録: Simultaneous relative gravity measurements using three SCINTREX CG5 and one LaCoste & Romberg G gravimeters were carried out in active Tokachi-dake volcano. No tares were identified in all measurement series. Differences in measured relative gravity values between the CG5#0033 and G#791 were less than 0.023 mGal for each observation point. Maximum difference between CG5#0552 and G#791, however, reached to 0 .196 mGal. Discrepancy between CG5#0552 and CG5#0033 was also recognized. Above differences seemed to correlate with relative gravity and altitude from reference to stations. These results suggested possible larger difference between individuals but lesser between gravimeter models. Investigation of possible error factors, e.g. spring constants, recovery characteristics of gravimeter tilting, and air proofing of chamber are required.
資料タイプ: bulletin (article)


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