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Seismic reflection survey on the computers using seismic interferometry

Research Project

Project/Area Number 26287109
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypePartial Multi-year Fund
Section一般
Research Field Solid earth and planetary physics
Research InstitutionJapan Agency for Marine-Earth Science and Technology

Principal Investigator

FUJIE Gou  国立研究開発法人海洋研究開発機構, 地震津波海域観測研究開発センター, 主任技術研究員 (50371729)

Co-Investigator(Kenkyū-buntansha) 仲西 理子  国立研究開発法人海洋研究開発機構, 地震津波海域観測研究開発センター, 技術研究員 (30371727)
佐藤 壮  国立研究開発法人海洋研究開発機構, 地震津波海域観測研究開発センター, 特任技術研究員 (10373458)
Project Period (FY) 2014-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥10,010,000 (Direct Cost: ¥7,700,000、Indirect Cost: ¥2,310,000)
Fiscal Year 2017: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2016: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2015: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2014: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Keywords南海トラフ / 地震波干渉法 / 海底地震計 / 地震探査 / 地下構造 / 屈折法データ / 反射法 / 波形インバージョン / 地球・惑星内部構造 / 地震 / 海洋探査
Outline of Final Research Achievements

We applied seismic interferometry to the OBS-airgun seismic survey data to synthesize seismic reflection data acquired at sea surface. We applied seismic migration techniques to the synthesized data and succeeded in imaging sedimentary structure along the survey line. Then, we reanalyzed the OBS-airgun data by referring to the sedimentary structure imaged by the seismic interferometry and updated the subducting plate interface model in the Nankai subduction zone. Moreover, we applied pre-stack depth migration to the synthesized seismic reflection data by using a seismic velocity model derived from the full-waveform inversion of the same OBS-airgun data. The result indicated that the combination of the seismic interferometry and full-waveform inversion is a powerful tool to determine the detailed seismic structure by the OBS-airgun data.

Academic Significance and Societal Importance of the Research Achievements

南海トラフ域など沈み込み地震発生帯の深部を正しくイメージングするには、浅部堆積層の実態把握が不可欠である。一般に、浅部イメージングには反射法地震探査が効果的であるが、船舶輻輳や漁業との競合のため沿岸域などでは長いケーブルの曳航が必要な反射法地震探査は実施できず、結果として、深部イメージングの不確定性が大きくなるという問題があった。本研究では、沿岸域などでも比較的容易に実施できる屈折法探査データから反射法データを合成し堆積層の実態把握ができることを示した。本アプローチにより、南海トラフ域に限らず地震発生帯の深部構造の正確な実態把握が進められると期待される。

Report

(6 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Annual Research Report
  • 2016 Annual Research Report
  • 2015 Annual Research Report
  • 2014 Annual Research Report
  • Research Products

    (23 results)

All 2019 2018 2017 2016 2015 2014 Other

All Int'l Joint Research (4 results) Journal Article (4 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 4 results,  Open Access: 1 results) Presentation (15 results) (of which Int'l Joint Research: 9 results)

  • [Int'l Joint Research] University Grenoble alpes(フランス)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] IG PAS(ポーランド)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] Universiy Grenoble Alpes(フランス)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] Inst. of Geophys., Polish Aca. of Sci.(ポーランド)

    • Related Report
      2017 Annual Research Report
  • [Journal Article] Feasibility study on the waveform analysis to the conventional wide-angle marine seismic survey data2019

    • Author(s)
      Fujie Gou、Nakanishi Ayako、Sato Takeshi、Kodaira Shuichi、Miura Seiichi
    • Journal Title

      Proceedings of the 13th SEGJ International Symposium

      Volume: 1 Pages: 588-588

    • DOI

      10.1190/segj2018-018.1

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Three-dimensional plate geometry and P-wave velocity models of the subduction zone in SW Japan: Implications for seismogenesis2018

    • Author(s)
      Ayako Nakanishi, Narumi Takahashi, Yojiro Yamamoto, Tsutomu Takahashi, Seckin Ozgur Citak, Takeshi Nakamura, Koichiro Obana, Shuichi Kodaira and Yoshiyuki Kaneda
    • Journal Title

      Geological Society of America Special Paper

      Volume: 534 (印刷中) Pages: 1-18

    • DOI

      10.1130/2018.2534(04)

    • ISBN
      9780813725345, 9780813795348
    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Interferometric OBS imaging for wide-angle seismic data,2017

    • Author(s)
      K. Shiraishi, G. Fujie, T. Sato, S. Abe, E. Asakawa, S. Kodaira,
    • Journal Title

      Geophysics

      Volume: 印刷中

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Near-field observations of an offshore Mw 6.0 earthquake from an integrated seafloor and subseafloor monitoring network at the Nankai Trough, southwest Japan2016

    • Author(s)
      L. M. Wallace, E. Araki, D. Saffer, X. Wang, A. Roesner, A. Kopf, A. Nakanishi, W. Power, R. Kobayashi, C. Kinoshita, S. Toczko, T. Kimura, Y. Machida, and S. Carr
    • Journal Title

      J. Geophys. Res. Solid Earth

      Volume: 121 Issue: 11 Pages: 8338-8351

    • DOI

      10.1002/2016jb013417

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Detailed crustal imaging in the Nankai Trough subduction zone using OBS-airgun data2018

    • Author(s)
      Gou Fujie, Takeshi Sato, Kazuya Shiraishi, Ayako Nakanishi, Shuichi Kodaira, Seiichi Miura, Andrzej Gorszczyk, Eiichi Asakawa, Takao Nibe, Romain Brossier
    • Organizer
      SEISMIX2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Feasibility study on the waveform analysis to the conventional wide-angle marine seismic survey data2018

    • Author(s)
      Gou Fujie, Ayako Nakanishi, Takeshi Sato, Shuichi Kodaira, Seiichi Miura
    • Organizer
      The 13th SEGJ International Symposium
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Feasibility of the waveform analysis to the existing conventional wide-angle seismic survey data - Ocean Bottom Seismometer (OBS) and controlled-source seismic surveys in the Nankai subduction zone -2017

    • Author(s)
      Fujie, G., A. Nakanishi, T. Sato, S. Kodaira
    • Organizer
      IAG-IASPEI 2017
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Waveform inversion to image laterally inhomogeneous crustal structure - comparison among waveform inversion, traveltime inversion, and seismic migration2017

    • Author(s)
      T. Sato, G. Fujie, K. Shiraishi, S. Kodaira, S. Miura, E. Asakawa, T. Nibe, N. Yui, S. Abe, R. Brossier, J. Virieux
    • Organizer
      IAG-IASPEI 2017
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Variation in the nature of incoming oceanic plate along Japan Trench2017

    • Author(s)
      Fujie, G., K. Obana, Y. Kaiho, T. Yamada, S. Kodaira, T. Isse, S. Miura
    • Organizer
      AGU fall meeting 2017
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Heterogeneous Structure in the incoming Philippine Sea plate along the southwestern Nankai Trough2016

    • Author(s)
      Ayako NAKANISHI , Yojiro YAMAMOTO, Mikiya YAMASHITA, Gou FUJIE , Seiichi MIURA, Shuichi KODAIRA, Yoshiyuki KANEDA
    • Organizer
      2016 American Geophysical Union Fall Meeting
    • Place of Presentation
      San Francisco, CA, USA
    • Year and Date
      2016-12-14
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 四国沖フィリピン海プレートの構造不均質2016

    • Author(s)
      仲西理子・山下幹也・山本揚二朗・藤江剛・三浦誠一・小平秀一 (JAMSTEC)・金田義行(香川大)
    • Organizer
      日本地震学会 2016年度秋季大会
    • Place of Presentation
      名古屋国際会議場、愛知県名古屋市
    • Year and Date
      2016-10-05
    • Related Report
      2016 Annual Research Report
  • [Presentation] Structural variation of the incoming Philippine Sea plate along the Nankai Trough off Shikoku2016

    • Author(s)
      Ayako NAKANISHI, Yojiro YAMAMOTO, Mikiya YAMASHITA, Gou FUJIE , Seiichi MIURA ,Shuichi KODAIRA, Yoshiyuki KANEDA
    • Organizer
      Japan Geoscience Union Meeting 2016
    • Place of Presentation
      幕張メッセ、千葉県千葉市
    • Year and Date
      2016-05-23
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Interferometric imaging of crustal structure from wide-angle multicomponent OBS data2015

    • Author(s)
      Kazuya Shiraishi, Gou Fujie, Takeshi Sato, Susumu Abe, Eiichi Asakawa, Shuichi Kodaira
    • Organizer
      2015 AGU Fall Meeting
    • Place of Presentation
      Moscone Center、米国・サンフランシスコ
    • Year and Date
      2015-12-14
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 沈み込む前の四国沖フィリピン海プレートの構造不均質2015

    • Author(s)
      Ayako Nakanishi
    • Organizer
      平成27年度 地震研究所共同利用研究集会「海溝の海側で生じる過程を探る:沈み込み帯へのインプット」
    • Place of Presentation
      東京大学・地震研究所、東京都文京区
    • Year and Date
      2015-11-11
    • Related Report
      2015 Annual Research Report
  • [Presentation] Three-dimensional plate geometry and velocity model for the Nankai Trough subduction seismogenic zone based on structural studies2015

    • Author(s)
      Ayako NAKANISHI, Narumi TAKAHASHI, Yojiro YAMAMOTO, Tsutomu TAKAHASHI , Seckin Ozgur CITAK, Takeshi NAKAMURA , Koichiro OBANA, Shuichi KODAIRA, Yoshiyuki KANEDA
    • Organizer
      12 th Annual Meeting Asia Oceania Geosciences Society
    • Place of Presentation
      Suntec Singapore Convention & Exhibition Centre、シンガポール
    • Year and Date
      2015-08-07
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Heterogeneous Structure in the incoming Philippine Sea plate along the Nankai Trough2015

    • Author(s)
      Ayako NAKANISHI, Yojiro YAMAMOTO , Mikiya YAMASHITA , Hikaru IWAMRU , Gou FUJIE , Seiichi MIURA ,Shuichi KODAIRA , Yoshiyuki KANEDA
    • Organizer
      Japan Geoscience Union Meeting 2015
    • Place of Presentation
      幕張メッセ、千葉県千葉市
    • Year and Date
      2015-05-24
    • Related Report
      2015 Annual Research Report
  • [Presentation] Structural variation in the incoming Philippine Sea plate along the Nankai Trough2014

    • Author(s)
      Ayako NAKANISHI, Yojiro YAMAMOTO, Mikiya YAMASHITA, Hikaru IWAMRU, Gou FUJIE, Shuichi KODAIRA, Yoshiyuki KANEDA,
    • Organizer
      2014 AGU Fall Meeting
    • Place of Presentation
      Moscone Center (米国・サンフランシスコ)
    • Year and Date
      2014-12-19
    • Related Report
      2014 Annual Research Report
  • [Presentation] 四国沖から紀伊水道沖におけるフィリピン海プレートの構造2014

    • Author(s)
      仲西理子・山本揚二朗・山下幹也・井和丸光・藤江剛・小平秀一・金田義行
    • Organizer
      日本地震学会2014年度秋季大会
    • Place of Presentation
      朱鷺メッセ(新潟県新潟市)
    • Year and Date
      2014-11-26
    • Related Report
      2014 Annual Research Report
  • [Presentation] 構造研究に基づく南海トラフ地震発生帯の3次元速度構造モデル2014

    • Author(s)
      Ayako NAKANISHI, Narumi TAKAHASHI, Yojiro YAMAMOTO, Tsutomu TAKAHASHI, Koichiro OBANA, Shuichi KODAIRA, Yoshiyuki KANEDA
    • Organizer
      日本地球惑星科学連合2014年大会
    • Place of Presentation
      パシフィコ横浜(神奈川県横浜市)
    • Year and Date
      2014-04-29
    • Related Report
      2014 Annual Research Report

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Published: 2014-04-04   Modified: 2020-03-30  

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