A new miniaturized magnetometer system for long-term distributed observation on the seafloor

• 資料種別: 記事
• タイトル: A new miniaturized magnetometer system for long-term distributed observation on the seafloor
• 著者・編者: Kazunori Ogawa; Tetsuo Matsuno; Hiroshi Ichihara
• 出版事項: 日本 : Springer Nature
• 出版年月日等: 2018-07-03
• 出版年（W3CDTF）: 2018-07-03
• タイトル（掲載誌）: EPS : Earth, Planets and Space
• 巻号年月日等（掲載誌）: 70(111)
• 掲載巻: 70(111)
• ISSN（掲載誌）: 1880-5981
• ISSN-L（掲載誌）: 1343-8832
• 本文の言語コード: eng
• DOI: 10.1186/s40623-018-0877-6; https://doi.org/10.1186/s40623-018-0877-6
• 国立国会図書館永続的識別子: info:ndljp/pid/11125879; https://dl.ndl.go.jp/pid/11125879
• コレクション（共通）: 障害者向け資料
• コレクション（障害者向け資料：レベル1）: テキストデータ
• コレクション（個別）: 国立国会図書館デジタルコレクション > 電子書籍・電子雑誌 > その他; https://dl.ndl.go.jp/collections/B00035
• 収集根拠: オンライン資料収集制度
• 受理日（W3CDTF）: 2018-08-10T20:26:03+09:00
• 保存日（W3CDTF）: 2018-08-10
• 記録形式（IMT）: application/pdf
• オンライン閲覧公開範囲: 国立国会図書館内限定公開
• デジタル化資料送信: 図書館・個人送信対象外
• 遠隔複写可否（NDL）: 可
• 掲載誌（URI）: https://earth-planets-space.springeropen.com/articles
• 掲載誌（国立国会図書館永続的識別子）: info:ndljp/pid/11067456; https://dl.ndl.go.jp/pid/11067456
• 連携機関・データベース: 国立国会図書館 : 国立国会図書館デジタルコレクション; https://dl.ndl.go.jp

• 要約等: We have developed a new magnetometer system specialized to multipoint and long-term observations on the seafloor to promote marine or ocean-bottom experiments mainly for the electromagnetic sounding of the Earth's interior. In situ magnetic field observation on the seafloor is an essential geophysical technique to investigate structures of the oceanic crust and the upper mantle, many of which are still frontier as to observational evidences. The in situ and long-term observations require long-term-operable and small-size magnetometer systems, which are placed on the seafloor over a year in pressure-resistant cases without external power supply and communication. We have designed and developed a new electric circuit board of small size and lower power consumption for the magnetometer system. Our new magnetometer system, what we call "DOKODEMO MAG," is suitable to be installed in a pressure-resistant cylinder of 36 mm diameter and can operate independently over 2 years with a smaller amount of batteries than the conventional system because its power consumption was saved to ~ 33 mW. This magnetometer system is capable of observing orthogonal three-axis magnetic fields continuously with sampling frequency of 5 Hz at maximum and an accuracy of ~ 0.1 nT. The system also records tilt and temperature of the system and voltage of the batteries. Prototype models of this magnetometer system were tested for in situ operation for 5 months on the seafloor around the Kikai caldera in the south of the Kyusyu Island, SW Japan. The results of the test showed sufficient performance of our new magnetometer system and its potential of future usage for every type of marine or ocean-bottom operations.
• DOI: 10.1186/s40623-018-0877-6; https://doi.org/10.1186/s40623-018-0877-6
• オンライン閲覧公開範囲: インターネット公開
• 著作権情報: © The Author(s) 2018.; This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
• 関連情報（URI）: https://hdl.handle.net/20.500.14094/90005061; http://id.ndl.go.jp/digimeta/11125879; https://dl.ndl.go.jp/pid/11125879; http://link.springer.com/content/pdf/10.1186/s40623-018-0877-6.pdf; http://link.springer.com/article/10.1186/s40623-018-0877-6/fulltext.html
• 参照: Giant rhyolitic lava dome formation after 7.3 ka supereruption at Kikai caldera, SW Japan; https://cir.nii.ac.jp/crid/1050012570393728000; Electrical conductivity of old oceanic mantle in the northwestern Pacific I: 1-D profiles suggesting differences in thermal structure not predictable by a plate cooling model; https://cir.nii.ac.jp/crid/1050012570393904000; Hayabusa2 Mission Overview; https://cir.nii.ac.jp/crid/1050845763736009600; Electrical image of subduction zone beneath northeastern Japan; https://cir.nii.ac.jp/crid/1360002214349850112; Tsunami source of the 2011 Tohoku earthquake detected by an ocean-bottom magnetometer; https://cir.nii.ac.jp/crid/1360004232135326848; System Configuration and Operation Plan of Hayabusa2 DCAM3-D Camera System for Scientific Observation During SCI Impact Experiment; https://cir.nii.ac.jp/crid/1360285706412277248; Electrical image of passive mantle upwelling beneath the northern East Pacific Rise; https://cir.nii.ac.jp/crid/1360574092889661824; Complex subduction and small-scale convection revealed by body-wave tomography of the western United States upper mantle; https://cir.nii.ac.jp/crid/1360574094585785344; Upper mantle electrical resistivity structure beneath the central Mariana subduction system; https://cir.nii.ac.jp/crid/1360848658216677120; Three-dimensional electrical resistivity of the north-central USA from EarthScope long period magnetotelluric data; https://cir.nii.ac.jp/crid/1361137045636199296; Coseismic and postseismic slip of the 2011 magnitude-9 Tohoku-Oki earthquake; https://cir.nii.ac.jp/crid/1361418520750308480; Mantle dynamics beneath the East Pacific Rise at 17°S: Insights from the Mantle Electromagnetic and Tomography (MELT) experiment; https://cir.nii.ac.jp/crid/1362544419333612928; Bounded influence magnetotelluric response function estimation; https://cir.nii.ac.jp/crid/1363951794210077184; Slow Earthquakes Coincident with Episodic Tremors and Slow Slip Events; https://cir.nii.ac.jp/crid/1364233269991901952; Melt-rich channel observed at the lithosphere–asthenosphere boundary; https://cir.nii.ac.jp/crid/1364233270513247872; International Geomagnetic Reference Field : the 12th generation; https://cir.nii.ac.jp/crid/2050025942189455360
• 連携機関・データベース: 国立情報学研究所 : CiNii Research; https://cir.nii.ac.jp/
• 提供元機関・データベース: 学術機関リポジトリデータベース; https://irdb.nii.ac.jp; 雑誌記事索引データベース; https://ndlsearch.ndl.go.jp; Crossref; https://www.crossref.org; CiNii Articles; 科学研究費助成事業データベース; https://kaken.nii.ac.jp/ja
• 書誌ID（NDLBibID）: 11125879; http://id.ndl.go.jp/bib/11125879
• NII論文ID: 120006491592