Challenging of observational study on infrasound wave for quantitative understanding of volcanic plume dynamics
| Project/Area Number |
23654157
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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 | Kyoto University |
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Principal Investigator |
YOKOO Akihiko 京都大学, 理学(系)研究科(研究院), 助教 (70420403)
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| Co-Investigator(Kenkyū-buntansha) |
SUZUKI Yujiro 東京大学, 地震研究所, 助教 (30392939)
IGUCHI Masato 京都大学, 防災研究所, 教授 (60144391)
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| Project Period (FY) |
2011 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2012: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2011: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
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| Keywords | 火山現象 / 火山 / 噴煙 / 噴火 / 空振 / 桜島 |
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| Research Abstract |
We conducted an array observation of infrasound at Sakurajima volcano. Two peaks, around 2Hz and 0.5Hz, in power spectrum of the infrasound were identified; the former peak would be related to the eigen frequency of the vent of Showa crater, but the latter would be related to ejection of eruption clouds. We also conducted 3-D numerical simulation of volcanic plumes using our improved code. Results of this study provided advancement of quantitative understanding of infrasound wave associated with volcanic plume.
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Report
(3 results)
Research Products
(23 results)
