2012 Fiscal Year Final Research Report
Challenging of observational study on infrasound wave for quantitative understanding of volcanic plume dynamics
| Project/Area Number |
23654157
|
|---|
| Research Category |
Grant-in-Aid for Challenging Exploratory Research
|
| Allocation Type | Multi-year Fund |
|---|
| Research Field |
Solid earth and planetary physics
|
|---|
| Research Institution | Kyoto University |
|---|
Principal Investigator |
YOKOO Akihiko 京都大学, 理学(系)研究科(研究院), 助教 (70420403)
|
|---|
| 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)
|
|---|
| Project Period (FY) |
2011 – 2012
|
| Keywords | 火山現象 |
|---|
| 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.
|
