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2012 Fiscal Year Final Research Report

Investigation of localized 3-D elastic and anelastic structures by body-wave waveform inversion

Research Project

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Project/Area Number 22540433
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Solid earth and planetary physics
Research InstitutionThe University of Tokyo

Principal Investigator

GELLER Robert  東京大学, 大学院・理学系研究科, 教授 (40170154)

Project Period (FY) 2010 – 2012
Keywords内部構造
Research Abstract

We have developed methods for inverting seismic waveform data for 3-D Earth structure. We made preliminary applications of our methods to datasets recorded by dense array network of seismometers and obtained3-D shear velocity structures in the lowermost mantle beneath Central America and the western Pacific. The obtained model for Central America suggests that there is a high velocity zone which associates with a subducted cold slab. The obtained model for thewestern Pacific suggests the existence of thermal plumes.

  • Research Products

    (25 results)

All 2012 2011 2010

All Journal Article (7 results) (of which Peer Reviewed: 7 results) Presentation (18 results)

  • [Journal Article] Waveform inversion of broad-band body-wave data for the S-velocity structure in the lowermost mantle bneath the Indian subcontinent and Tibetan Plateau2012

    • Author(s)
      Konishi, K., K. Kawai, R.J. Geller and N. Fuji
    • Journal Title

      Geophys. J. Int.,

      Volume: 191 Pages: 305-316

    • Peer Reviewed
  • [Journal Article] Partial derivatives of high-frequency compressional body waves for 3-D Earth structure2012

    • Author(s)
      Fuji, N., S. Chevrot, L. Zhao, R.J. Geller, and K. Kawai
    • Journal Title

      Geophys. J. Int.

      Volume: 190 Pages: 522-540

    • Peer Reviewed
  • [Journal Article] Inversion of seismic waveforms for shear wave velocity structure in the lowermost mantle beneath the Hawaiian hotspot2010

    • Author(s)
      Kawai, K., and R.J. Geller
    • Journal Title

      Phys. Earth Planet. Inter.

      Volume: 183 Pages: 136-142

    • Peer Reviewed
  • [Journal Article] Waveform inversion for S-wave structure in the lowermost mantle beneath the Arctic Implications for mineralogy and chemical composition2010

    • Author(s)
      Kawai, K., R.J. Geller, and N. Fuji
    • Journal Title

      Geophys. Res. Lett.

      Volume: 37

    • DOI

      doi:10.1029/2010GL043654

    • Peer Reviewed
  • [Journal Article] The vertical flow in the lowermost mantle beneath the Pacific from inversion of seismic waveforms for anisotropic structure2010

    • Author(s)
      Kawai, K., and R.J. Geller
    • Journal Title

      Earth Planet. Sci. Lett.

      Volume: 297 Pages: 190-198

    • Peer Reviewed
  • [Journal Article] A methodology for inversion of broadband seismic waveforms for elastic and anelastic structure and its application to the mantle transition zone beneath the northwestern Pacific2010

    • Author(s)
      Fuji, N., K. Kawai, and R.J. Geller
    • Journal Title

      Phys. Earth Planet. Inter.

      Volume: 180 Pages: 118-137

    • Peer Reviewed
  • [Journal Article] Waveform inversion for localized seismic structure and an applications to D" structure beneath the2010

    • Author(s)
      Kawai, K., and R.J. Geller
    • Journal Title

      Pacific, J. Geophys. Res.

      Volume: 115

    • DOI

      doi:10.1029/2009JB006503

    • Peer Reviewed
  • [Presentation] Methods for inversion of body-wave waveforms for localized three-dimensional seismicstructure and an application to D" structure beneath Central America2012

    • Author(s)
      Kenji Kawai, Kensuke Konishi, Robert J. Geller, Nobuaki Fuji
    • Organizer
      American Geophysical Union Fall Meeting,
    • Place of Presentation
      San Francisco USA
    • Year and Date
      2012-12-05
  • [Presentation] Waveform inversion for three dimensional shear velocity structure in the lowermost mantle beneath the western Pacific using data from a dense Japanese seismic network2012

    • Author(s)
      Kensuke Konishi, Kenji Kawai, Robert J. Geller, Nobuaki Fuji
    • Organizer
      American Geophysical Union Fall Meeting
    • Place of Presentation
      San Francisco, USA
    • Year and Date
      2012-12-05
  • [Presentation] Waveform inversion for Earth structure: Progress and Prospects2012

    • Author(s)
      Robert J. Geller, Kenji Kawai, Kensuke Konishi, Nobuaki Fuji
    • Organizer
      American Geophysical Union Fall Meeting
    • Place of Presentation
      San Francisco, USA
    • Year and Date
      2012-12-05
  • [Presentation] 実体波を用いた3次元波形インバージョン法の開発および中米下最下部マントルの3次元詳細構造2012

    • Author(s)
      河合研志,小西健介,ゲラー・ロバート,冨士延章
    • Organizer
      日本地震学会秋季大会
    • Place of Presentation
      函館市民会館・函館市民体育館,函館
    • Year and Date
      2012-10-18
  • [Presentation] 地震波形分析から示唆される中央太平洋下マントル最下部における超低速度領域の存在2012

    • Author(s)
      長谷川慶,河合研志,ゲラー・ロバート,小西健介,冨士延章
    • Organizer
      日本地球惑星科学連合大会,幕張メッセ
    • Place of Presentation
      千葉
    • Year and Date
      2012-05-20
  • [Presentation] Efficient calculation of complete 3D rech t d r v t v s f r h gh frequency compressional teleseismic body waves2011

    • Author(s)
      bastien Chevrot, Li Zhao, Robert J. Geller, Kenji Kawai
    • Organizer
      American Geophysical Union Fall Meeting
    • Place of Presentation
      San Francisco, USA
    • Year and Date
      2011-12-06
  • [Presentation] The vertical flow and lateral heterogeneity in the lowermost mantle2011

    • Author(s)
      Kenji Kawai, Robert J. Geller, Nobuaki FujiKensuke Konishi
    • Organizer
      American Geophysical Union Fall Meeting
    • Place of Presentation
      San Francisco, USA
    • Year and Date
      2011-12-06
  • [Presentation] PKP Kernel Calculation up to 1Hz using DSM Method2011

    • Author(s)
      bastien Chevrot, Li Zhao, Robert J. Geller, Kenji Kawai
    • Organizer
      AOGS 2011, Taipei
    • Place of Presentation
      Taiwan
    • Year and Date
      2011-08-09
  • [Presentation] The vertical flow in the lowermost mantle beneath the Pacific2011

    • Author(s)
      Kenji Kawai, Robert J. Geller
    • Organizer
      AOGS 2011
    • Place of Presentation
      TaipeiTaiwan
    • Year and Date
      2011-08-09
  • [Presentation] 広帯域波形を用いた波形インバージョンによるインド下最下部マントル構造2011

    • Author(s)
      小西健介,河合研志,ゲラー・ロバート,冨士延章
    • Organizer
      日本地球惑星科学連合大会
    • Place of Presentation
      幕張メッセ,千葉
    • Year and Date
      2011-05-22
  • [Presentation] 波形インバージョンによる南太平洋下の最下部マントルS波速度構造推定2011

    • Author(s)
      長谷川慶,小西健介,ゲラー・ロバート,冨士延章,河合研志
    • Organizer
      日本地球惑星科学連合大会,幕張メッセ
    • Place of Presentation
      千葉
    • Year and Date
      2011-05-22
  • [Presentation] The large low velocity province and the vertical flow beneath the Pacific.2010

    • Author(s)
      Kenji Kawai, Robert J. Geller, Taku Tsuchiya
    • Organizer
      American Geophysical Union Fall Meeting
    • Place of Presentation
      San Francisco, USA
    • Year and Date
      2010-12-16
  • [Presentation] 太平洋下最下部マントルにおける上昇流の地震学的証拠2010

    • Author(s)
      河合研志,ゲラー・ロバート
    • Organizer
      地震学会秋季大会
    • Place of Presentation
      広島国際会議場,広島
    • Year and Date
      2010-10-28
  • [Presentation] 震源MTを考慮したより短周期までの地震波形インバージョン-インド下最下部マントル構造-2010

    • Author(s)
      小西健介,河合研志,ゲラー・ロバート,冨士延章
    • Organizer
      地震学会秋季大会
    • Place of Presentation
      広島国際会議場,広島
    • Year and Date
      2010-10-28
  • [Presentation] 効率的な3次元波形インバージョン手法の開発2010

    • Author(s)
      冨士延章,シュヴロー・セバスシャン,ゲラー・ロバート,河合研志,趙里
    • Organizer
      地震学会秋季大会
    • Place of Presentation
      広島国際会議場,広島
    • Year and Date
      2010-10-28
  • [Presentation] Low Q in the mantle transition zone beneath the Northwestern Pacific?2010

    • Author(s)
      Nobuaki Fuji, Robert J. Geller, Kenji Kawai, Kensuke Konishi
    • Organizer
      2010 Western Pacific Geophysics Meeting
    • Place of Presentation
      Taipei, Taiwan
    • Year and Date
      2010-06-23
  • [Presentation] Showing the waveform sensitivity against model-changing and applying CG method for obtaining Shear wave velocitystructure in the lowermost mantle beneath Central Asia2010

    • Author(s)
      Kensuke Konishi, Kawai Kenji, Nobuaki Fuji, Robert J. Geller
    • Organizer
      2010 Western Pacific Geophysics Meeting
    • Place of Presentation
      Taipei, Taiwan
    • Year and Date
      2010-06-23
  • [Presentation] 地震波速度モデルに対する波形の感度とCG法を用いた波形インバージョンによるインド下最下部マントル速度構造2010

    • Author(s)
      小西健介,河合研志,ゲラー・ロバート,冨士延章
    • Organizer
      日本地球惑星科学連合大会
    • Place of Presentation
      幕張メッセ,千葉
    • Year and Date
      2010-05-24

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Published: 2014-08-29   Modified: 2015-10-06  

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