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2011 Fiscal Year Final Research Report

Analysis of the short-period wave propagation in the ionosphere associated with earthquakes using 4D GPS tomography

Research Project

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Project/Area Number 20340123
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Solid earth and planetary physics
Research InstitutionJapan Agency for Marine-Earth Science and Technology

Principal Investigator

OBAYASHI Masayuki  独立行政法人海洋研究開発機構, 地球内部ダイナミクス領域, 主任研究員 (30359179)

Co-Investigator(Kenkyū-buntansha) WATADA Shingo  東京大学, 地震研究所, 助教 (30301112)
Co-Investigator(Renkei-kenkyūsha) OZAWA Shinzaburo  国土地理院, 地理地殻活動研究センター, 主任研究官 (70370806)
Project Period (FY) 2008 – 2011
Keywordsトモグラフィー / 電離層擾乱 / 地震が発生する大気波動 / GPS-TEC擾乱 / GEONET / 大気重力波 / 長周期音波 / 大気境界波
Research Abstract

Ionospheric electron density disturbance that is often observed after large earthquakes can be measured from the delay of the carrier wave from the GPS navigation satellites. We developed a method to obtain the time variation images of the 3D structure of the ionospheric disturbance using 1Hz-sampling data from GEONET operated by GSI. By applying the method to the 2004 Tokachi-Oki earthquake, we have shown that the ionosphere disturbance is the dispersive sound wave from the ground and the ocean surface. The sound waves were generated by the large-scale crustal deformation and reached to the ionosphere.

  • Research Products

    (22 results)

All 2011 2010 2009 2008

All Journal Article (7 results) (of which Peer Reviewed: 5 results) Presentation (15 results)

  • [Journal Article] Atmospheric boundary waves excited by the tsunami generation related to the 2011 great Tohoku-Oki earthquake2011

    • Author(s)
      Arai, N. M. Iwakuni, S. Watada, et al.
    • Journal Title

      Geophys. Res. Lett.

      Volume: 38

    • DOI

      doi:10.1029/2011GL049146

    • Peer Reviewed
  • [Journal Article] ナノ分解能気圧センサーを用いた可搬型インフラサウンド観測システムの開発2011

    • Author(s)
      村山貴彦・今西祐一・綿田辰吾・大井琢磨・新井伸夫・岩国真紀子・野上麻美
    • Journal Title

      震研究所技術研究報告

      Volume: 17 Pages: 63-76

  • [Journal Article] Acoustic Resonant Oscillations Between the Atmosphere and the Solid Earth During the 1991 Mt2010

    • Author(s)
      Watada, S., H. Kanamori
    • Journal Title

      Pinatubo Eruption, J. Geophys

      Volume: 115 Pages: B12319

    • DOI

      doi:10.1029/2010JB007747

    • Peer Reviewed
  • [Journal Article] Acoustic Gravity Waves from Earthquakesin Infrasound Monitoring for Atmospheric Studies2010

    • Author(s)
      T. Mikumo, S. Watada
    • Journal Title

      A. Hauchecorne, Springer

      Pages: 259-275

    • Peer Reviewed
  • [Journal Article] Radiation of acoustic and gravity waves and propagation of boundary waves in the stratified fluid from a time-varying bottom boundary2009

    • Author(s)
      Watada S.
    • Journal Title

      J. Fluid Mech.

      Volume: 627 Pages: 361-377

    • Peer Reviewed
  • [Journal Article] 大地震に伴う気圧変動2009

    • Author(s)
      綿田辰吾
    • Journal Title

      地震ジャーナル

      Volume: 47 Pages: 25-26

  • [Journal Article] Low-frequency acoustic-gravity waves from tectonic deformation associated with the 2004 Sumatra-Andaman earthquake(Mw=9.2)2008

    • Author(s)
      Mikumo, T. T. Shibutani, A. L. Pichon, M. Garces, D. Fee, T. Tsuyuki, S. Watada, W. Morii
    • Journal Title

      J. Geophys. Res.

      Volume: 113 Pages: B12402

    • DOI

      doi:10.1029/2008JB005710

    • Peer Reviewed
  • [Presentation] Atmospheric boundary waves excited by the tsunami generation related to the 2011 great Tohoku-Oki earthquake2011

    • Author(s)
      Nobuo, A., M. Iwakuni, S. Watada, Y. Imanishi, T. Murayama, M. Nogami
    • Organizer
      American Geophysical Union fall meeting
    • Place of Presentation
      San Fancisco(USA)
    • Year and Date
      2011-12-07
  • [Presentation] Acoustic resonant oscillations between the atmosphere and the solid earth during the 1991 Mt.2011

    • Author(s)
      綿田辰吾
    • Organizer
      Pinatubo eruption
    • Place of Presentation
      SGEPPS秋季大会,神戸大学
    • Year and Date
      2011-11-06
  • [Presentation] Acoustic resonant oscillations between the atmosphere and the solid earth during the 1991 Mt2011

    • Author(s)
      Watada S.
    • Organizer
      Pinatubo eruption, Todai forum, New horizons in the earth science
    • Place of Presentation
      Paris(Frace)
    • Year and Date
      2011-10-18
  • [Presentation] Hiroo Kanamori, Acoustic Resonant Oscillations Between the Atmosphere and the Solid Earth During the 1991 Mt. Pinatubo Eruption2011

    • Author(s)
      Watada, S.
    • Organizer
      IUGG general assembly
    • Place of Presentation
      メルボルンコンンベンションセンター(オーストラリア)
    • Year and Date
      2011-06-02
  • [Presentation] Acoustic resonant oscilations between the atmosphere and the solid Earth during the 1991 Mt2011

    • Author(s)
      Shingo Watada, Hiroo Kanamori
    • Organizer
      Pinatubo eruption, Japan Geoscience Union
    • Place of Presentation
      Japan Geoscience Union, Makuhari(Japan)
    • Year and Date
      2011-05-24
  • [Presentation] Dispersion of infrasound signals excited by explosive eruptions of the Sakura-jima volcano2010

    • Author(s)
      Nobuo Arai, Yuichi Imanishi, Shingo Watada, Takuma Oi, Takahiko Murayama, Makiko Iwakuni, Mami Nogami
    • Organizer
      Monitoring Research Review on Ground-Based Nuclear Explosion Monitoring Technologies
    • Place of Presentation
      Orlando Florida(USA)
    • Year and Date
      20100921-23
  • [Presentation] Dispersion of infrasound signals excited by explosive eruptions of the Sakura-jima volcano2010

    • Author(s)
      Nobuo Arai, Yuichi Imanishi, Shingo Watada, Takuma Oi, Takahiko Murayama, Makiko Iwakuni, Mami Nogami
    • Organizer
      American Geophysical Union fall meeting
    • Place of Presentation
      San Francisco(USA)
    • Year and Date
      2010-12-17
  • [Presentation] Azimuthal Traveltime and Amplitude Anomalies of Tropospheric and Thermospheric Acoustic Waves From the Explosive Eruption of the Sakurajima Volcano in Japan2010

    • Author(s)
      Watada. S., N. Arai, T. Murayama, M. Iwakuni, M. Nogami, Y. Imanishi, T. Oi, Y. Kitagawa
    • Organizer
      Americal Geophysical Union fall meeting
    • Place of Presentation
      San Francisco
    • Year and Date
      2010-12-13
  • [Presentation] ハスケル行列法による大気・固体地球結合系のモード計算2010

    • Author(s)
      綿田辰吾
    • Organizer
      日本地震学会秋期大会
    • Place of Presentation
      広島国際会議場(広島市)
    • Year and Date
      2010-10-29
  • [Presentation] インフラサウンドの観測-桜島の爆発噴火に起因するシグナルの速度分散性-2010

    • Author(s)
      新井伸夫,今西祐一,綿田辰吾,大井拓磨,村山貴彦,村田和則,岩國真紀子,野上麻美
    • Organizer
      日本音響学会2010年秋期研究発表会
    • Place of Presentation
      関西大学(吹田市)
    • Year and Date
      2010-09-14
  • [Presentation] 低周波マイクロフォン比較実験2010

    • Author(s)
      綿田辰吾、横尾亮彦、今西祐一、大井拓磨、中埜彰洋、安藤秀樹、佐藤峰司、寺薗佳高
    • Organizer
      日本地球惑星科学連合大会
    • Place of Presentation
      幕張メッセ国際会議場
    • Year and Date
      2010-05-25
  • [Presentation] 桜島火山の爆発的噴火後に見られる低周波音波の方位に依存した振幅・伝播時間異常2010

    • Author(s)
      綿田辰吾,新井伸夫,村山貴彦,岩國真紀子,野上麻美,今西祐一,大井拓磨
    • Organizer
      日本地球惑星科学連合大会
    • Place of Presentation
      幕張メッセ国際会議場
    • Year and Date
      2010-05-24
  • [Presentation] 密度成層する流体波動の放射境界条件2009

    • Author(s)
      綿田辰吾
    • Organizer
      日本地震学会秋季大会
    • Place of Presentation
      京都大学吉田キャンパス(京都市)
    • Year and Date
      2009-10-23
  • [Presentation] Wave Propagation in the Ionosphere Associated With Earthquakes Revealed by GPS-TEC 4D Tomography2008

    • Author(s)
      Watada, S., M. Obayashi, S. Ozawa
    • Organizer
      Americal Geophysical Union fall meeting
    • Place of Presentation
      San Francisco
    • Year and Date
      2008-12-17
  • [Presentation] GPS 4次元トモグラフィーによる地震発生に伴う電離層内波動現象の解明2008

    • Author(s)
      綿田辰吾,大林政行,小沢慎三郎
    • Organizer
      地球電磁気・地球惑星圏学
    • Place of Presentation
      会仙台市戦災復興記念館
    • Year and Date
      2008-10-11

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Published: 2013-07-31  

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