Item type |
紀要論文(ELS) / Departmental Bulletin Paper(1) |
公開日 |
1983-10-01 |
タイトル |
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言語 |
en |
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タイトル |
Ground tilt observations at Syowa Station, Antarctica. Part 1. Borehole tiltmeter |
言語 |
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言語 |
eng |
資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
departmental bulletin paper |
ページ属性 |
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内容記述タイプ |
Other |
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内容記述 |
P(論文) |
著者名(英) |
Kaminuma, Katsutada
Nagao, Toshiyasu
Ito, Kiyoshi
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著者所属(英) |
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en |
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National Institute of Polar Research |
著者所属(英) |
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en |
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Faculty of Science, Chiba University |
著者所属(英) |
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en |
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Regional Observation Center for Earthquake Prediction, Faculty of Science, Kyoto University |
抄録(英) |
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内容記述タイプ |
Other |
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内容記述 |
The first continuous observations of ground tilt in Antarctica were carried out at Syowa Station with a biaxial bubble-type borehole tiltmeter and a set of water-tube tiltmeter. The former was installed in a waterproof, steel-cased hole 196cm deep and 144mm in diameter. The observations began in April 1981. This paper discusses the borehole tiltmeter data from April to December. The signals were recorded on a 12-channel chart recorder in the data processing hut, 150m north from the observation hole. The maximum tilt fluctuation during nine months was 17μrad in the X-component (E-W) and 24μrad in the Y-component (N-S). As the data seem to be seriously affected by underground temperature variations, the observed data were corrected for temperature assuming a linear relation between the ground tilt and the underground temperature. The corrected records showed a trend of upward tilt on the west and north sides throughout the observation period. The cumulative change of ground tilt during nine months of observation was -1.5μrad in the X-component and 6μrad in the Y-component. These observations demonstrate that a true ground tilt can be detected by the borehole tiltmeter. |
雑誌書誌ID |
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収録物識別子タイプ |
NCID |
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収録物識別子 |
AA00733561 |
書誌情報 |
Memoirs of National Institute of Polar Research. Special issue
巻 28,
p. 27-32,
発行日 1983-10
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