Monitoring of the volcanic fluid system and elucidation of the deep-magma ascent mechanism at Aso volcano

阿苏火山火山流体系统监测及深部岩浆上升机制阐明

基本信息

  • 批准号:
    15204040
  • 负责人:
  • 金额:
    $ 26.79万
  • 依托单位:
  • 依托单位国家:
    日本
  • 项目类别:
    Grant-in-Aid for Scientific Research (A)
  • 财政年份:
    2003
  • 资助国家:
    日本
  • 起止时间:
    2003 至 2006
  • 项目状态:
    已结题

项目摘要

In order to monitor the volcanic fluid system and to elucidate the mechanism of magma ascent before eruptions, we deployed broadband seismometer and GPS networks in Aso volcano. We also conducted a series of dense array observations to monitor shallow fluid flow activities. As the result, (l) we were successful to observe extremely fast fluid movements in the shallow part of the volcano that appear to indicate a well developed shallow conduit system, (2) we have presented a model that explains the activities of long-period (15s) and short-period (1s) tremors as a result of the activities of a single conduit system of hydrothermal fluid flows. We have also developed an efficient method to compute the dynamic response of a fluid-filled crack that is flexible to many applications which may be encountered in volcano seismology.
为了监测火山流体系统,阐明喷发前岩浆上升的机制,我们在阿索火山部署了宽带地震仪和GPS网络。我们还进行了一系列密集阵列观测,以监测浅层流体流动活动。因此,(L)我们成功地观测到火山浅部极快速的流体运动,这似乎表明了一个发育良好的浅层管道系统;(2)我们提出了一个模型,解释了由于单一热液流动管道系统的活动而导致的长周期(15s)和短周期(1s)地震的活动。我们还开发了一种有效的方法来计算充满流体的裂缝的动态响应,该方法可以灵活地应用于火山地震学中可能遇到的许多应用。

项目成果

期刊论文数量(49)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Dynamic response of frequent tremors at Aso volcano to teleseismic waves from the 1999 Chi-Chi, Taiwan earthquake
  • DOI:
    10.1016/j.jvolgeores.2005.03.012
  • 发表时间:
    2005-10
  • 期刊:
  • 影响因子:
    2.9
  • 作者:
    M. Miyazawa;I. Nakanishi;Y. Sudo;T. Ohkura
  • 通讯作者:
    M. Miyazawa;I. Nakanishi;Y. Sudo;T. Ohkura
A new technique of radiation thermometry using a consumer digital camcorder : Observations of red glow at Aso volcano, Japan
使用消费数码摄像机进行辐射测温的新技术:日本阿苏火山红光的观测
  • DOI:
  • 发表时间:
    2005
  • 期刊:
  • 影响因子:
    0
  • 作者:
    N.Ozaki;T.Ono;K.Kondo et al.;T.Saito 他
  • 通讯作者:
    T.Saito 他
Apparent migration of tremor source synchronized with the change in the tremor amplitude observed at Aso Volcano, Japan
日本阿苏火山震源明显迁移与震幅变化同步
Apparent migration of tremor sources synchronized with the changes in the tremor amplitude observed at Aso volcano, Japan
日本阿苏火山观测到的与震颤幅度变化同步的震源表观迁移
Numerical simulation of the steam-water flow instability as a mechanism of long period ground vibrations at geothermal areas
地热区长周期地面振动机制中汽水流不稳定性的数值模拟
  • DOI:
  • 发表时间:
    2005
  • 期刊:
  • 影响因子:
    0
  • 作者:
    S.Sasaki;S.Tarucha;K.Iwamura and S.Kaneshima
  • 通讯作者:
    K.Iwamura and S.Kaneshima
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KAWAKATSU Hitoshi其他文献

KAWAKATSU Hitoshi的其他文献

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{{ truncateString('KAWAKATSU Hitoshi', 18)}}的其他基金

Seismic radial anisotopy beneath Japnese islands and its implications
日本列岛地震径向各向异性及其意义
  • 批准号:
    24654142
  • 财政年份:
    2012
  • 资助金额:
    $ 26.79万
  • 项目类别:
    Grant-in-Aid for Challenging Exploratory Research
NECESSArray Project-Earth dynamics viewed from the Chinese continent
NECESSArray项目-从中国大陆看地球动力学
  • 批准号:
    19104011
  • 财政年份:
    2007
  • 资助金额:
    $ 26.79万
  • 项目类别:
    Grant-in-Aid for Scientific Research (S)
Realtime Earthquake Mechanism Monitoring System based on Long-period Seismic Wavefield
基于长周期地震波场的实时地震机理监测系统
  • 批准号:
    12558043
  • 财政年份:
    2000
  • 资助金额:
    $ 26.79万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Elucidation of the Pressure Source Beneath the Active Crater of Aso Volcano
阿苏火山活火山口下方压力源的解析
  • 批准号:
    09304043
  • 财政年份:
    1997
  • 资助金额:
    $ 26.79万
  • 项目类别:
    Grant-in-Aid for Scientific Research (A)
Waveform Realtime Seismology
波形实时地震学
  • 批准号:
    07558171
  • 财政年份:
    1995
  • 资助金额:
    $ 26.79万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Seismological Study of 920km-mantle Discontinuity and the Mantle Transition Zone
920km地幔不连续面和地幔过渡带地震学研究
  • 批准号:
    07640550
  • 财政年份:
    1995
  • 资助金额:
    $ 26.79万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)

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适用于极端环境的小型高性能宽带地震仪研制及其耐环境性能研究
  • 批准号:
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合作研究:佛罗里达州至埃德蒙顿宽带地震仪部署
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    9903385
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用于岩石圈研究的便携式宽带地震仪阵列
  • 批准号:
    206019-1998
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Portable broadband seismometer array for lithospheric studies
用于岩石圈研究的便携式宽带地震仪阵列
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    196311-1997
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密苏里州至马萨诸塞州宽带地震仪部署:地幔结构的合作研究
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