• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Tomography of the Whole Earth Figures

Research Project

Project/Area Number 21740323
Research Category

Grant-in-Aid for Young Scientists (B)

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

Principal Investigator

TAKEUCHI Nozomu  東京大学, 地震研究所, 准教授 (90313048)

Project Period (FY) 2009 – 2012
Project Status Completed (Fiscal Year 2012)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2012: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2011: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2010: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2009: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords内部構造 / Direct Solution Method / 地球内部構造 / インバージョン / トモグラフィー / グローバル地震 / 下部マントル / マントル対流
Research Abstract

The purpose of this study is to constrain chemical and thermal structures of the whole Earth by obtaining tomography models with higher accuracy and resolution. By using our advanced method, we obtained fine velocity model of the whole mantle. We also obtained fine topography model of the discontinuities by using dense Japanese array data. We showed fine-scale spacial correlations between these two models and obtained strongevidence for the existence of chemical heterogeneities in the lowermost mantle.

Report

(5 results)
  • 2012 Annual Research Report   Final Research Report ( PDF )
  • 2011 Annual Research Report
  • 2010 Annual Research Report
  • 2009 Annual Research Report
  • Research Products

    (33 results)

All 2013 2012 2011 2010 2009 Other

All Journal Article (16 results) (of which Peer Reviewed: 16 results) Presentation (15 results) Remarks (2 results)

  • [Journal Article] On thePossibility of lunar core phase detection using new seismometers for soft-landers in future lunar missions2013

    • Author(s)
      Yamada, R., Garcia, R.F., Lognonne, P., Kobayashi, N., Takeuchi, N., Nebut, T., Shiraishi, H., Calvet, M. & Ganepain-Beyneix, J.
    • Journal Title

      Planet. Space Sci.

      Volume: vol.81 Pages: 18-31

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] High-velocity anomaly adjacent to the western edge of the Pacific low-velocity province2013

    • Author(s)
      Idehara, K., Tanaka, S. & Takeuchi, N.
    • Journal Title

      Geophys. J. Int.

      Volume: vol.192 Pages: 1-6

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] High-velocity anomaly adjacent to the western edge of the Pacific low-velocity province2013

    • Author(s)
      Idehara, K.
    • Journal Title

      Geophys. J. Int.

      Volume: 192 Issue: 1 Pages: 1-6

    • DOI

      10.1093/gji/ggs002

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] On the Possibility of lunar core phase detection using new seismometers for soft-landers in future lunar missions2013

    • Author(s)
      Yamada, R.
    • Journal Title

      Planet. Space Sci.

      Volume: in press

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] N., Detection of ridge-like structures in the Pacific Large Low-Shear-Velocity Province2012

    • Author(s)
      Takeuchi
    • Journal Title

      Earth Planet. Sci. Lett.

      Volume: vol.319-320 Pages: 55-64

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] Detection of ridge-like structures in the Pacific Large Low-Shear Velocity Province2012

    • Author(s)
      Takeuchi, N.
    • Journal Title

      Earth Planet.Sci.Lett.

      Volume: 319-320 Pages: 55-64

    • DOI

      10.1016/j.epsl.2011.12.024

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Seismic attenuation structure of the top half of the inner core, beneath the northeastern Pacific2010

    • Author(s)
      Iritani, R., Takeuchi, N. & Kawakatsu, H
    • Journal Title

      Geophys. Res. Lett.

      Volume: vol.37 Issue: 19

    • DOI

      10.1029/2010gl044053

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] Fine-scale topography of the D" discontinuity and its correlation to volumetric velocity fluctuations2010

    • Author(s)
      Takeuchi, N. & Obara, K.
    • Journal Title

      Phys. Earth Planet. Int.

      Volume: vol. 183 Pages: 126-135

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] Simulation of heterogeneity sections obtained by neutrino radiography2010

    • Author(s)
      Takeuchi N.
    • Journal Title

      Earth Planets Space

      Volume: vol.62 Pages: 215-221

    • NAID

      10029015968

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] Fine-scale topography of the D" discontinuity and its correlation to volumetric velocity fluctuations2010

    • Author(s)
      Takeuchi, N., Obara, K.
    • Journal Title

      Phys.Earth Planet.Int.

      Volume: 183 Pages: 126-135

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Seismic attenuation structure of the top half of the inner core beneath the northeastern Pacific2010

    • Author(s)
      Iritani, R., 他2名
    • Journal Title

      Geophys.Res.Lett.

      Volume: 37

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Simulation of heterogeneity sections obtained by neutrino radiography2010

    • Author(s)
      竹内希
    • Journal Title

      Earth Planets Space 62

      Pages: 215-221

    • NAID

      10029015968

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 非球対グローバル地球モデルに対する理論波形計算手法-トモグラフィーに応用された手法を中心に-2009

    • Author(s)
      竹内希
    • Journal Title

      地震2

      Volume: vol.61

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] A low-velocity conduit throughout the mantle in the robust component of a tomography model2009

    • Author(s)
      Takeuchi, N.
    • Journal Title

      Geophys. Res. Lett.

      Volume: 36 Issue: 7

    • DOI

      10.1029/2009gl037590

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] A low-velocity conduit throughout the mantle in the robust component of a tomography model2009

    • Author(s)
      竹内希
    • Journal Title

      Geophys.Res.Lett. 36

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 非球対グローバル地球モデルに対する理論波形計算手法 -トモグラフィーに応用された手法を中心に-2009

    • Author(s)
      竹内希
    • Journal Title

      地震2 61

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Presentation] NECESSArrayプロジェクトチー, ScS多重反射波のトモグラフィー解析による不連続面のマッピング2012

    • Author(s)
      竹内希
    • Organizer
      日本地震学会
    • Place of Presentation
      函館市函館市民会館
    • Year and Date
      2012-10-18
    • Related Report
      2012 Final Research Report
  • [Presentation] NECCESS Arrayデータとグローバルカタログデータのジョイントトモグラフィー法2012

    • Author(s)
      竹内希・川勝均・田中聡・大林政行・入谷良平・宮川幸治・出原光暉・利根川貴志
    • Organizer
      日本地球惑星科学連合大会
    • Place of Presentation
      千葉市幕張メッセ
    • Year and Date
      2012-05-20
    • Related Report
      2012 Final Research Report
  • [Presentation] Upper-mantle tomography with array analyses of triplicated P-arrivals observed by NECESSArray2011

    • Author(s)
      Takeuchi, N., et al.
    • Organizer
      American Geophysical Union
    • Place of Presentation
      アメリカ(サンフランシスコ)
    • Year and Date
      2011-12-07
    • Related Report
      2011 Annual Research Report
  • [Presentation] Upper-mantle tomography with array analysis of triplicated P-arrivals observed by NECESSArray2011

    • Author(s)
      N. Takeuchi, H. Kawakatsu, S. Tanaka, J. Chen, J. Ning, S. Grand, F. Niu, M. Obayashi, R. Iritani, K. Miyakawa, K. Idehara, T. Tonegawa & NECESSArrayProject Team
    • Organizer
      AGU Fall Meeting
    • Place of Presentation
      米国カリフォルニア 州サンフランシスコ市
    • Year and Date
      2011-11-07
    • Related Report
      2012 Final Research Report
  • [Presentation] NECESSArrayトリプリケーションデータを用いた上部マントルP波走時トモグラフィー2011

    • Author(s)
      竹内希・川勝均・田中聡・大林政行・入谷良平・宮川幸治・出原光暉・利根川貴志・NECESSArrayプロジェクトチーム
    • Organizer
      日本地震学会
    • Place of Presentation
      静岡市グランシップ
    • Year and Date
      2011-10-12
    • Related Report
      2012 Final Research Report
  • [Presentation] 太平洋下最下部マントルの微細全体像2010

    • Author(s)
      竹内希
    • Organizer
      日本地震学会
    • Place of Presentation
      広島市広島国際会議場
    • Year and Date
      2010-10-27
    • Related Report
      2012 Final Research Report
  • [Presentation] 広帯域海底地震計データから示唆される下部マントルの急激なS波速度勾配(invited)2010

    • Author(s)
      竹内希・塩原肇・一瀬建日・杉岡裕子・金沢敏彦
    • Organizer
      日本地球惑星科学連合大会
    • Place of Presentation
      千葉市幕張メッセ
    • Year and Date
      2010-05-26
    • Related Report
      2012 Final Research Report
  • [Presentation] 広帯域海底地震計データから示唆される下部マントルの急激な速度勾配2010

    • Author(s)
      竹内希, 他4名
    • Organizer
      日本地球惑星科学連合大会
    • Place of Presentation
      幕張メッセ(invited)
    • Year and Date
      2010-05-26
    • Related Report
      2010 Annual Research Report
  • [Presentation] Fine-scale volumetric velocity heterogeneities and D'' discontinuity topography constrained by Hi-net Tiltmeter Data2009

    • Author(s)
      N. Takeuchi & K. Obara
    • Organizer
      AGU Fall meeting
    • Place of Presentation
      米国カリフォルニア 州サンフランシスコ市
    • Year and Date
      2009-12-17
    • Related Report
      2012 Final Research Report
  • [Presentation] Fine-scale volumetric velocity heterogeneities and D" discontinuity topography constrained by Hi-net Tiltmeter Data2009

    • Author(s)
      Takeuchi, N., Obara, K.
    • Organizer
      American Geophysical Union, Fall Meeting
    • Place of Presentation
      San Francisco, USA
    • Year and Date
      2009-12-17
    • Related Report
      2009 Annual Research Report
  • [Presentation] migrationによる南西太平洋地域のD"不連続面topographyの検出2009

    • Author(s)
      竹内希・小原一成
    • Organizer
      日本地震学会
    • Place of Presentation
      京都市京都大学吉田キャンパス
    • Year and Date
      2009-10-23
    • Related Report
      2012 Final Research Report
  • [Presentation] 外核最下部の有限な剛性率の実体波コアフェーズへの影響2009

    • Author(s)
      竹内希
    • Organizer
      日本地震学会
    • Place of Presentation
      京都市京都大学吉田キャンパス
    • Year and Date
      2009-10-22
    • Related Report
      2012 Final Research Report
  • [Presentation] Fine-Scale Heterogeneities in the Lowermost Mantle Constrained by BroadbandTiltmeter Waveforms2009

    • Author(s)
      竹内希 ・小原一成
    • Organizer
      日本地球惑星科学連合大会
    • Place of Presentation
      千葉市幕張メッセ
    • Year and Date
      2009-05-19
    • Related Report
      2012 Final Research Report
  • [Presentation] NECCESSArrayデータとグローバルカタログデータのジョイントトモグラフィー法

    • Author(s)
      竹内 希
    • Organizer
      日本地球惑星科学連合大会
    • Place of Presentation
      千葉市幕張メッセ
    • Related Report
      2012 Annual Research Report
  • [Presentation] ScS多重反射波のトモグラフィー解析による不連続面のマッピング

    • Author(s)
      竹内 希
    • Organizer
      日本地震学会
    • Place of Presentation
      函館市函館市民体育館
    • Related Report
      2012 Annual Research Report
  • [Remarks]

    • URL

      http://www.eri.u-tokyo.ac.jp/takeuchi/

    • Related Report
      2012 Final Research Report
  • [Remarks]

    • URL

      http://www.eri.u-tokyo.ac.jp/takeuchi/model2/

    • Related Report
      2011 Annual Research Report

URL: 

Published: 2009-04-01   Modified: 2019-07-29  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi