| Project/Area Number |
15K13558
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Solid earth and planetary physics
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| Research Institution | The University of Tokyo |
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Principal Investigator |
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| Co-Investigator(Renkei-kenkyūsha) |
SHIOBARA Hajime 東京大学, 地震研究所, 教授 (60211950)
ISSE Takehi 東京大学, 地震研究所, 助教 (60359180)
NISHIDA Kiwamu 東京大学, 地震研究所, 准教授 (10345176)
UTADA Hisashi 東京大学, 地震研究所, 教授 (70134632)
SUETSUGU Daisuke 独立行政法人海洋研究開発機構, 地球深部ダイナミクス研究分野, 分野長 (20359178)
SUGIOKA Hiroko 神戸大学, 理学系研究科, 准教授 (00359184)
YOSHIZAWA Kazunori 北海道大学, 理学系研究科, 准教授 (70344463)
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2017: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2016: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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| Keywords | 海底地震計 / 広帯域地震計 / 地球内部構造 / トモグラフィー / 海底電磁気計 |
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| Outline of Final Research Achievements |
We have proposed a next generation large-scale array experiment in the ocean called Pacific Array. Recent advances in ocean bottom broadband seismometry, together with advances in the seismic analysis methodology, have enabled us to resolve the regional 1-D structure of the entire lithosphere/asthenosphere system, including seismic anisotropy, with deployments of ~15 broadband ocean bottom seismometers. Having ~15 BBOBSs as an array unit for a ~1-year deployment, and repeating such deployments in a leap-frog way or concurrently (an array of arrays) for a decade or so would enable us to cover a large portion of the Pacific basin. With this JSPS support, we took a leadership to organize international collaborations; as a result, three array deployments are funded so far in various countries (US, Japan, and Korea).
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