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Title: 十勝岳白銀荘での重力鉛直勾配測定
Other Titles: Measurements for vertical gradient of gravity on mountain slope of active Tokachi-dake volcano, Hokkaido
Authors: 高橋, 浩晃1 Browse this author →KAKEN DB
一柳, 昌義2 Browse this author
岡崎, 紀俊3 Browse this author
高木, 朗充4 Browse this author
宮城, 洋介5 Browse this author
本多, 亮6 Browse this author
Authors(alt): TAKAHASHI, Hiroaki1
ICHIYANAGI, Masayoshi2
OKAZAKI, Noritoshi3
TAKAGI, Akimichi4
MIYAGI, Yousuke5
Issue Date: 19-Mar-2016
Publisher: 北海道大学大学院理学研究院
Journal Title: 北海道大学地球物理学研究報告
Journal Title(alt): Geophysical bulletin of Hokkaido University
Volume: 79
Start Page: 9
End Page: 13
Abstract: Measurements for vertical gradient of gravity were carried out on mountain slope of active Tokachidake volcano. Round-trip gravity measurements at a lower and an upper surfaces of a tripod with about 0.97 m height difference using four SCINTREX CG5 gravimeters were conducted. Estimated gravity gradient were 0.285 to 0.290 mGal/m. These values were smaller than the Free-air gradient of 0 .3086 mGal/m, which is usually referred. Effect from local terrain was suggested because of precipitous topography. Estimations of gravity gradient near active crater by direct measurements and numerical simulation are desirable to evaluate ground deformation effects in gravity change due to volcanic activity.
Type: bulletin (article)
Appears in Collections:北海道大学地球物理学研究報告 = Geophysical bulletin of Hokkaido University > 第79号

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