Understanding mechanisms generating pressure waves by bubble bursting at magma surface

2009 Fiscal Year Final Research Report

• Project/Area Number: 20740251
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Solid earth and planetary physics
• Research Institution: The University of Tokyo
• Principal Investigator: ICHIHARA Mie The University of Tokyo, 地震研究所, 助教 (00376625)
• Research Collaborator: VIDAL Valerie リヨン高等師範学校, 常任研究員
• Project Period (FY): 2008 – 2009
• Keywords: 火山現象 / 圧力波形

Research Abstract

Laboratory experiments investigating sound generation by bubble bursting in a non-Newtonian fluid have revealed memory effects of the fluid and feedback mechanisms controlling the waveform. Systems developed by this project were tried at Asama volcano and detected intermittent and continuous surface activities starting at the eruption of 2nd, Februaly, 2009.

Research Products

• [Journal Article] Acoustic waveform of continuous bubbling in a non-Newtonian fluid (2009)
  • Author(s): Vidal, V., Ichihara, M., Ripepe, M., Kurita, K.
  • Journal Title: Physical Review E 80
  • Peer Reviewed
• [Journal Article] Airwaves generated by an underwater explosion; Implications to volcanic infrasound (2009)
  • Author(s): Ichihara, M., Ripepe, M., Goto, A., Oshima, H. Aoyama, H., Iguchi, M., Tanaka, K., Taniguchi, H.
  • Journal Title: J. Geophys. Res. 114 Pages: B03210
  • Peer Reviewed
• [Presentation] 2009年2月噴火以降の浅間火口空振活動 (2010)
  • Author(s): 市原美恵
  • Organizer: 日本地球惑星科学連合
  • Place of Presentation: 幕張メッセ
  • Year and Date: 2010-05-25
• [Presentation] Bubble acoustics (2010)
  • Author(s): Ichihara, M.
  • Organizer: The 2nd Workshop on the Fluid Oscillations in Volcanic Systems
  • Place of Presentation: Waikoloa, Hawaii, Invited
  • Year and Date: 2010-02-23
• [Presentation] 泡のぶくぶく現象の変動と周囲微小気泡の影響 (2008)
  • Author(s): 市原美恵
  • Organizer: 日本火山学会秋季大会
  • Place of Presentation: 岩手大学工学部
  • Year and Date: 2008-10-11
• [Presentation] From laboratory bubbles to quasi-periodic volcanic phenomena: What can we learn from non-newtonian fluid acoustics? (2008)
  • Author(s): Vidal, V.
  • Organizer: IAVCEI
  • Place of Presentation: Reykjavik, Iceland
  • Year and Date: 2008-08-22
• [Presentation] Airwaves generated by an underwater explosion; Implications to volcanic infrasound (2008)
  • Author(s): Ichihara, M.
  • Organizer: IAVCEI
  • Place of Presentation: Reykjavik, Iceland
  • Year and Date: 2008-08-19
• [Remarks]
  • URL: http://www.eri.u-tokyo.ac.jp/ichihara/asama
• [Remarks]
  • URL: http://www.eri.u-tokyo.ac.jp/AGORA/research/MIchihara_bubblevolcano/mieichihara_agora.html