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Determination of deep structure under Japan using waveform inversion and Spectral-Element Method

Research Project

Project/Area Number 21340131
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

TSUBOI Seiji  独立行政法人海洋研究開発機構, 地球情報研究センター, 部長 (90183871)

Co-Investigator(Renkei-kenkyūsha) OBAYASH Masayuk  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)
TONO Yoko  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, 研究技術専任スタッフ (90359183)
Project Period (FY) 2009 – 2011
Project Status Completed (Fiscal Year 2011)
Budget Amount *help
¥18,460,000 (Direct Cost: ¥14,200,000、Indirect Cost: ¥4,260,000)
Fiscal Year 2011: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2010: ¥7,020,000 (Direct Cost: ¥5,400,000、Indirect Cost: ¥1,620,000)
Fiscal Year 2009: ¥8,450,000 (Direct Cost: ¥6,500,000、Indirect Cost: ¥1,950,000)
Keywords地球 / 惑星内部構造 / 地球内部構造モデル / 数値地震波形計算 / スペクトル要素法 / 波形インバージョン / 理論地震波形計算 / 地球内部構造インバージョン / 地球内部3次元構造モデル
Research Abstract

We obtained seismic velocity structure model under the Japanese Island using waveform inversion technique up to depth 2000km and the precision of about 20 seconds. To calculate synthetic seismograms, we used Spectral-Element Method. The obtained model shows different spatial distribution for P-wave and S-wave structure respectively, which may imply that the velocity structure is derived from different origins.

Report

(4 results)
  • 2011 Annual Research Report   Final Research Report ( PDF )
  • 2010 Annual Research Report
  • 2009 Annual Research Report
  • Research Products

    (22 results)

All 2012 2011 2010 2009

All Journal Article (15 results) (of which Peer Reviewed: 14 results) Presentation (7 results)

  • [Journal Article] On the application of Mwp in the near field and the March 11, 2011 Tohoku Earthquake2012

    • Author(s)
      Barry Hirshorn
    • Journal Title

      Pure and Applied. Geophysics.

      Volume: (印刷中)

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Source process and broadband waveform modeling of 2011 Tohoku earthquake using the Earth Simulator2012

    • Author(s)
      Seiji Tsuboi
    • Journal Title

      High Performance Computing on Vector Systems

      Volume: (印刷中)

    • Related Report
      2011 Annual Research Report
  • [Journal Article] Evidence of a thick localized ultra low velocity zone inside the Pacific slow region at the base of the mantle, Phys2011

    • Author(s)
      To A., Fukao Y., Tsuboi, S
    • Journal Title

      Earth PlanetInter.

      Volume: 184 Pages: 119-133

    • URL

      http://dx.doi.org/10.1016/j.pepi.2010.10.015

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Evidence of a thick localized ultra low velocity zone inside the Pacific slow region at the base of the mantle2011

    • Author(s)
      Akiko To
    • Journal Title

      Phys.Earth Planet Int.

      Volume: 184 Pages: 119-133

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Evidence of a thick localized ultra low velocity zone inside the Pacific slow region at the base of the mantle2011

    • Author(s)
      Akiko To
    • Journal Title

      Phys.Earth Planet.Inter.

      Volume: 184 Pages: 119-133

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Antipodal seismic observation of temporal and global variation at Earth's inner-outer core boundary, Geophy2010

    • Author(s)
      Butler, R., Tsuboi, S.
    • Journal Title

      Res. Lett.

      Volume: 37 Issue: 11

    • DOI

      10.1029/2010gl042908

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Rupture process of the 2008 Wenchuan, China earthquake inferred from teleseismic waveform inversion and forward modeling of broadband seismic waves2010

    • Author(s)
      Nakamura, T., Tsuboi, S., Kaneda, Y., Yamanaka, Y.
    • Journal Title

      Tectonophysic

      Volume: 491 Pages: 72-84

    • URL

      http://dx.doi.org/10.1016/j.tecto.2009.09.020

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Rupture process of the 2008 Wenchuan, China earthquake inferred from teleseismic waveform inversion and forward modeling of broadband seismic waves2010

    • Author(s)
      Takeshi Nakamura
    • Journal Title

      Tectonophjysics

      Volume: 491 Pages: 72-84

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Antipodal seismic observation of temporal and global variation at Earth's inner-outer core boundary2010

    • Author(s)
      Rhett Butler
    • Journal Title

      Geophys.Res.Lett.

      Volume: 37

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Rupture process of the 2008 Wenchuan, China earthquake inferred from teleseismic waveform inversion and forward modeling of broadband seismic waves2010

    • Author(s)
      Takeshi Nakamura
    • Journal Title

      Tectonophysics (印刷中)

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Visualization of geoscience data on Google Earth : development of a data converter system for seismic tomographic models2010

    • Author(s)
      Yasuko Yamagishi
    • Journal Title

      Computers & Geosciences 36

      Pages: 373-382

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Visualization of geoscience data on Google Earth : development of a data converter system for seismic tomographic models2009

    • Author(s)
      Y. Yamagishi, H. Yanaka, K. Suzuki, S. Tsuboi, T. Isse, M. Obayashi, H. Tamura, H. Nagao
    • Journal Title

      Computers & Geosciences

      Volume: 36 Pages: 373-382

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Seismic anisotropy of the Pacific slab and mantle wedge beneath the Japanese islands2009

    • Author(s)
      Y. Tono, Y. Fukao, T. Kunugi, S. Tsubo
    • Journal Title

      J. Geophys. Res

      Volume: 114

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Variationalprinciple for Rayleigh wave ellipticity2009

    • Author(s)
      T. Tanimoto, S. Tsuboi
    • Journal Title

      Geophys. J. Int

      Volume: 179 Issue: 3 Pages: 1658-166

    • DOI

      10.1111/j.1365-246x.2009.04360.x

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Seismic anisotropy of the Pacific slab and mantle wedge beneath the Japanese islands2009

    • Author(s)
      Yoko Tono
    • Journal Title

      Journal of Geophysical Research 114

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Presentation] Determination of Earth structure using waveform inversion and Spectral-Element Method for Eastern Asian region2011

    • Author(s)
      Seiji Tsuboi
    • Organizer
      American Geophysical Union
    • Place of Presentation
      アメリカ、サンフランシスコ市モスコーニ会議場
    • Year and Date
      2011-12-08
    • Related Report
      2011 Annual Research Report 2011 Final Research Report
  • [Presentation] Determination of Earthn Structure using waveform inversion and Spectral-Element Metho2011

    • Author(s)
      Sejii Tsuboi
    • Organizer
      Asia Oceania Geosciences Societ
    • Place of Presentation
      中華民国、台北市国際会議場
    • Year and Date
      2011-08-12
    • Related Report
      2011 Final Research Report
  • [Presentation] Source Process and Broadband Waveform Modeling of 2011 Tohoku earthquake using Spectral-Element Method2011

    • Author(s)
      Sejii Tsuboi
    • Organizer
      Asia Oceania Geosciences Society
    • Place of Presentation
      中華民国、台北市国際会議場
    • Year and Date
      2011-08-11
    • Related Report
      2011 Final Research Report
  • [Presentation] Adjoint Tomography of East Asia2011

    • Author(s)
      Masayuki Obayashi
    • Organizer
      International Union of Geodesy and Geophysics
    • Place of Presentation
      オーストラリア、メルボルン市メルボルン会議場
    • Year and Date
      2011-07-02
    • Related Report
      2011 Annual Research Report 2011 Final Research Report
  • [Presentation] Determination of Earth structure using waveform inversion and Spectral-Element Method2010

    • Author(s)
      Masayuki Obayashi
    • Organizer
      American Geophysical Unio
    • Place of Presentation
      アメリカ、サンフランシスコ市モスコーニ会議場
    • Year and Date
      2010-12-15
    • Related Report
      2011 Final Research Report
  • [Presentation] Letermination of Earth structure using waveform inversion and Spectral-Element Method2010

    • Author(s)
      Masayuki Obayashi
    • Organizer
      American Geophysical Union
    • Place of Presentation
      米国サンフランシスコ市モスコーニ会議場
    • Year and Date
      2010-12-15
    • Related Report
      2010 Annual Research Report
  • [Presentation] Antipodal observations of Earth's Core2009

    • Author(s)
      Rhett Butler
    • Organizer
      American Geophysical Union
    • Place of Presentation
      米国サンフランシスコ市
    • Year and Date
      2009-12-18
    • Related Report
      2009 Annual Research Report

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Published: 2009-04-01   Modified: 2016-04-21  

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