Measurement of gravity gradients in volcanic areas
| Project/Area Number |
24684034
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| Research Category |
Grant-in-Aid for Young Scientists (A)
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| Allocation Type | Partial Multi-year Fund |
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| Research Field |
Solid earth and planetary physics
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| Research Institution | Gunma University (2015)
Kyoto University (2012-2014) |
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Principal Investigator |
Shiomi Sachie 群馬大学, 大学院理工学府, 助教 (60584266)
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| Research Collaborator |
KAGIYAMA Tsuneomi 京都大学, 理学研究科, 教授
YAMAMOTO Keigo 京都大学, 防災研究所, 助教
IGUCHI Masato 京都大学, 防災研究所, 教授
KURODA Kazuaki 東京大学, 宇宙線研究所, 教授
NISHIMURA Jun 東京大学, JAXA/ISAS, 名誉教授
TELADA Souichi 産業技術総合研究所, 計測標準研究部門, 研究員
TUBOKAWA Tsuneya 真英計測, 代表
TSUDA Toshitaka 京都大学, 生存圏研究所, 教授
SOFYAN Yayan 京都大学, 理学研究科, 研究員
SONODA Tadaomi 京都大学, 防災研究所, 技術職員
SEKI Kenjirou 京都大学, 防災研究所, 技術職員
YOSHIKAWA Shin 京都大学, 理学研究科, 技術職員
INOUE Hiroyuki 京都大学, 理学研究科, 技術職員
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| Project Period (FY) |
2012-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥20,020,000 (Direct Cost: ¥15,400,000、Indirect Cost: ¥4,620,000)
Fiscal Year 2014: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2013: ¥12,870,000 (Direct Cost: ¥9,900,000、Indirect Cost: ¥2,970,000)
Fiscal Year 2012: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
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| Keywords | 重力勾配 / 火山観測 / 地下探査 / 重力勾配計 / Gravity gradient / Volcano / laser interferometer / 火山 / レーザ干渉計 |
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| Outline of Final Research Achievements |
Measurements of gravity gradients in volcanic regions could provide useful information for prediction of volcanic eruptions. In this research, we have developed a new type of gravity gradiometer that employs the technology developed for gravitational-wave detections. With this gravity gradiometer,we have performed trial measurements on the active volcanic island of Mt. Sakurajima, located in southern Japan. Our preliminary results showed that observed variations in gravity gradients were related to tidal effects. Further measurements could reveal more detailed underground structure and flow of groundwater of the Mt Sakurajima.
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Report
(5 results)
Research Products
(9 results)
