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High precision discrimination of paleo-tsunami deposits using high dimensional data driven analysis

Research Project

Project/Area Number 18H03820
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Review Section Medium-sized Section 25:Social systems engineering, safety engineering, disaster prevention engineering, and related fields
Research InstitutionTohoku University

Principal Investigator

Takeshi Komai  東北大学, 環境科学研究科, 教授 (30357024)

Co-Investigator(Kenkyū-buntansha) 後藤 和久  東京大学, 大学院理学系研究科(理学部), 教授 (10376543)
中村 謙吾  東北大学, 環境科学研究科, 助教 (30757589)
桑谷 立  国立研究開発法人海洋研究開発機構, 海域地震火山部門(火山・地球内部研究センター), 主任研究員 (60646785)
川辺 能成  国立研究開発法人産業技術総合研究所, 地質調査総合センター, 研究グループ長 (90392604)
Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥38,740,000 (Direct Cost: ¥29,800,000、Indirect Cost: ¥8,940,000)
Fiscal Year 2020: ¥9,360,000 (Direct Cost: ¥7,200,000、Indirect Cost: ¥2,160,000)
Fiscal Year 2019: ¥12,350,000 (Direct Cost: ¥9,500,000、Indirect Cost: ¥2,850,000)
Fiscal Year 2018: ¥17,030,000 (Direct Cost: ¥13,100,000、Indirect Cost: ¥3,930,000)
Keywords津波堆積物 / 高次元データ / データ駆動解析 / スパースモデリング / 津波防災 / 地球化学 / データ駆動 / 次元圧縮 / 歴史津波堆積物 / 地球化学分析 / 防災・減災 / 地球化学調査
Outline of Final Research Achievements

To accurately discriminate tsunami deposits by past giant tsunamis that occurred along the coast of Japan, we conducted a geochemical survey to obtain high-dimensional data and statistical and mathematical analysis of tsunami sediments. We surveyed and sampled tsunami deposits mainly in the eastern Japan area, geochemically analyzed the deposit samples at an unprecedentedly high density and analyzed the high-dimensional data obtained by integrating them with geological data using a newly developed sparse modeling method. With this novel technology, a comprehensive framework was developed to discriminate sediments deposited by historical giant tsunamis with high accuracy by mathematically and statistically differentiating various other types of events and historical events. Furthermore, the frequency of seismic tsunami events and the accuracy of identifying the inundation area along the Japanese coast were improved by enhancing the generalization performance of the new developed method.

Academic Significance and Societal Importance of the Research Achievements

歴史的な津波堆積物の調査および解析に関する研究は、これまでにも多くの実績があり、東日本震災以降では国内外で数多くの調査研究が実施されてきた。これらの多くは地質学的な調査や掘削による簡易的な堆積物試料の収集と砂状堆積層の特定を目的としており、大潮や河川氾濫等の大津波以外のイベントが混在する可能性が指摘されてきた。そのため、本研究ではスパースモデリングの新技術を導入して、従来にない高い精度で津波堆積物の高精度判別を可能にしたことは学術的に意義が大きい。また、地球化学とデータ科学の最新技術を導入して、大津波の頻度や規模を予測・推定することは、津波防災や安全システムの構築の観点から意義が大きい。

Report

(4 results)
  • 2021 Final Research Report ( PDF )
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • 2018 Annual Research Report
  • Research Products

    (40 results)

All 2022 2021 2020 2019 2018 Other

All Int'l Joint Research (1 results) Journal Article (16 results) (of which Int'l Joint Research: 8 results,  Peer Reviewed: 16 results,  Open Access: 11 results) Presentation (21 results) (of which Int'l Joint Research: 8 results,  Invited: 7 results) Book (1 results) Funded Workshop (1 results)

  • [Int'l Joint Research] New South Wales University(オーストラリア)

    • Related Report
      2020 Annual Research Report
  • [Journal Article] A geochemical approach for source apportionment and environmental impact assessment of heavy metals in a Cu?Ni mining region, Botswana2022

    • Author(s)
      Motswaiso Fiona、Wang Jiajie、Nakamura Kengo、Watanabe Noriaki、Komai Takeshi
    • Journal Title

      Environmental Earth Sciences

      Volume: 81 Issue: 5 Pages: 01229-01229

    • DOI

      10.1007/s12665-021-10158-y

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Applicability of silty material brought by black tsunami to estimation of inundation area2021

    • Author(s)
      Nakamura Kousuke、Komai Takeshi
    • Journal Title

      Japanese Geotechnical Society Special Publication

      Volume: 9 Issue: 5 Pages: 180-185

    • DOI

      10.3208/jgssp.v09.cpeg119

    • NAID

      130008103378

    • ISSN
      2188-8027
    • Year and Date
      2021-10-12
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Data-driven analysis for source apportionment and geochemical backgrounds establishment of toxic elements and REEs in the Tohoku region, Japan2021

    • Author(s)
      Pujiwati Arie、Wang Jiajie、Nakamura Kengo、Kawabe Yoshishige、Watanabe Noriaki、Komai Takeshi
    • Journal Title

      Chemosphere

      Volume: 263 Pages: 128268-128268

    • DOI

      10.1016/j.chemosphere.2020.128268

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Ten years after the 2011 Tohoku-oki earthquake and tsunami: Geological and environmental effects and implications for disaster policy changes2021

    • Author(s)
      Goto, K., Ishizawa, T., Ebina, Y., Imamura, F., Sato, S., Udo, K.
    • Journal Title

      Earth-Science Reviews

      Volume: 212 Pages: 103417-103417

    • DOI

      10.1016/j.earscirev.2020.103417

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] A geochemical approach for identifying marine incursions: Implications for tsunami geology on the Pacific coast of northeast Japan2020

    • Author(s)
      Takahiro Watanabe, Noriyoshi Tsuchiya, Shin-ichi Yamasaki, Yuki Sawai, Norihiro Hosoda, Fumiko W. Nara, Toshio Nakamura, Takeshi Komai
    • Journal Title

      Applied Geochemistry

      Volume: 118 Pages: 104644-104644

    • DOI

      10.1016/j.apgeochem.2020.104644

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Sparse isocon analysis: A data-driven approach for material transfer estimation2020

    • Author(s)
      Kuwatani Tatsu、Yoshida Kenta、Ueki Kenta、Oyanagi Ryosuke、Uno Masaoki、Akaho Shotaro
    • Journal Title

      Chemical Geology

      Volume: 532 Pages: 119345-119345

    • DOI

      10.1016/j.chemgeo.2019.119345

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Chemical Components of Heavy Metals in Tsunami Deposits and its Effects to Groundwater and Soil2019

    • Author(s)
      KOMAI Takeshi
    • Journal Title

      Journal of Groundwater Hydrology

      Volume: 61 Issue: 1 Pages: 47-54

    • DOI

      10.5917/jagh.61.47

    • NAID

      130007706273

    • ISSN
      0913-4182, 2185-5943
    • Year and Date
      2019-02-28
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Earth materials science in a data-driven paradigm2019

    • Author(s)
      T Kuwatani
    • Journal Title

      Elements

      Volume: 15 Issue: 4 Pages: 280-281

    • DOI

      10.2138/gselements.15.4.280

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] A scheme proposal for an effective selection of survey sites in paleotsunami research, Hachinohe case, Aomori Prefecture2019

    • Author(s)
      Velasco, E., Goto, K., Sugawara, D., Nishimura, Y.
    • Journal Title

      Proceedings of the 2019 CWMD Conference

      Volume: 19 Pages: 189-198

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Geochemical Investigation of Metals and Trace Elements around the Abandoned Cu-Ni Mine Site in Selibe Phikwe2019

    • Author(s)
      Motswaiso Fiona S.、Nakamura Kengo、Watanabe Noriaki、Komai Takeshi
    • Journal Title

      Journal of Geoscience and Environment Protection

      Volume: 07 Issue: 05 Pages: 275-293

    • DOI

      10.4236/gep.2019.75020

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] JournalConstruction of a conceptual model for confined groundwater flow in the Gunii Khooloi Basin, Southern Gobi Region2019

    • Author(s)
      Batdemberel Bayanzul, Kengo Nakamura, Isao Machida, Noriaki Watanabe, Komai Takeshi
    • Journal Title

      Hydrogeology

      Volume: 27(2) Issue: 5 Pages: 1-9

    • DOI

      10.1007/s10040-019-01955-8

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] 津波堆積物に含有する重金属等の化学組成と地下水・土壌への影響2019

    • Author(s)
      駒井 武、中村謙吾、川辺能成、桑谷 立
    • Journal Title

      地下水学会誌

      Volume: 61 Pages: 47-54

    • NAID

      130007706273

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Geochemical database of Japanese islands for basement rocks:2018

    • Author(s)
      Haraguchi Satoru、Ueki Kenta、Yoshida Kenta、Kuwatani Tatsu、Mohamed Mika、Horiuchi Shunsuke、Iwamori Hikaru
    • Journal Title

      The Journal of the Geological Society of Japan

      Volume: 124 Issue: 12 Pages: 1049-1054

    • DOI

      10.5575/geosoc.2018.0027

    • NAID

      130007612396

    • ISSN
      0016-7630, 1349-9963
    • Year and Date
      2018-12-15
    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Application of multivariate analysis to investigate the trace element contamination in top soil of coal mining district in Jorong, South Kalimantan, Indonesia2018

    • Author(s)
      Pujiwati Arie、Nakamura K、Watanabe N、Komai T
    • Journal Title

      IOP Conference Series: Earth and Environmental Science

      Volume: 118 Pages: 012062-012062

    • DOI

      10.1088/1755-1315/118/1/012062

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Restoration Measures After the 2011 Tohoku-oki Tsunami and Their Impact on Tsunami Research2018

    • Author(s)
      Chagu-Goff Catherine、Goto Kazuhisa、Sugawara Daisuke、Nishimura Yuichi、Komai Takeshi
    • Journal Title

      Advances in Natural and Technological Hazards Research

      Volume: 118 Pages: 229-247

    • DOI

      10.1007/978-3-319-58691-5_14

    • ISBN
      9783319586908, 9783319586915
    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] 地球科学プロセス解明のためのデータ駆動型解析2018

    • Author(s)
      桑谷 立
    • Journal Title

      情報地質

      Volume: 29 Pages: 49-60

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Presentation] 地球化学プロセス抽出のためのフォーワードモデリングと逆解析2021

    • Author(s)
      桑谷 立、中村 謙吾、赤穂 昭太郎、駒井 武
    • Organizer
      JpGU-AGU joint Meeting 2021
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 高次元データ駆動解析による津波堆積物の地球化学的判別2020

    • Author(s)
      駒井武, 中村謙吾, 桑谷立
    • Organizer
      資源・素材2020
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] 機械学習による津波堆積物の判別および東日本地域のデータベース構築2020

    • Author(s)
      駒井 武、栗田満瑠、中村謙吾、桑谷 立
    • Organizer
      第30回環境地質学シンポジウム
    • Related Report
      2020 Annual Research Report
  • [Presentation] 地球化学データ駆動解析による古津波堆積物の高精度判別2020

    • Author(s)
      駒井 武、山藤靖一郎、中村謙吾
    • Organizer
      地球惑星科学連合大会(AGU Joint meeting)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 3.11東日本大震災時に発生した津波堆積物の重金属の分布2020

    • Author(s)
      川辺能成
    • Organizer
      第230回 地質汚染・災害イブニングセミナー
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] ITRAX地球化学分析に基づいた歴史津波堆積物の高精度判別手法の開発2019

    • Author(s)
      山藤靖一郎、中村謙吾、駒井 武
    • Organizer
      第29回環境科学研究科地質学シンポジウム
    • Related Report
      2019 Annual Research Report
  • [Presentation] Chemical Properties of Tsunami Deposits Caused by the Great East Japan Earthquake2019

    • Author(s)
      川辺能成、原淳子
    • Organizer
      AOGS 16th Annual Meeting
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Estimation of material transfer from compositional datasets using sparse modeling2019

    • Author(s)
      T. Kuwatani, K. Yoshida, K. Ueki R Oyanagi, M. Uno, S. Akaho
    • Organizer
      AOGS 2019, Singapore
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] スパースアイソコン法の資源探査分野への応用2019

    • Author(s)
      桑谷立・赤穂昭太郎
    • Organizer
      資源・素材学会秋季大会2019
    • Related Report
      2019 Annual Research Report
  • [Presentation] スパースアイソコン解析:リファレンスフレームの自動決定2019

    • Author(s)
      桑谷立・赤穂昭太郎・吉田健太・上木賢太・宇野正起・大柳良介
    • Organizer
      日本地質学会2019, 山口大学
    • Related Report
      2019 Annual Research Report
  • [Presentation] 全岩組成を用いた物質移動量のデータ駆動型解析2019

    • Author(s)
      桑谷立・赤穂昭太郎・吉田健太・上木賢太・宇野正起・大柳良介
    • Organizer
      日本地球惑星科学連合大会2019年大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] A scheme proposal for an effective selection of survey sites in paleo-tsunami research, Hachinohe case, Aomori Prefecture2019

    • Author(s)
      Velasco, E., Goto, K., Sugawara, D., Nishimura, Y.
    • Organizer
      2019 CWMD Conference
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Chemical Properties of Tsunami Deposits Caused by the Great East Japan Earthquake2019

    • Author(s)
      Y. Kawabe, J. Hara
    • Organizer
      AOGS 16th Annual Meeting
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Geochemical and Statistical Analysis of Heavy Metals and Elements in Tsunami Deposits at Coastal Areas of Northeastern Japan2018

    • Author(s)
      T. Komai, K. Nakamura, Y. Kawabe, T. Kuwatani, N. Tsuchiya
    • Organizer
      International Symposium on Ocean and Polar Engineering
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 地球科学へのスパースモデリングの適用2018

    • Author(s)
      桑谷立
    • Organizer
      電子情報通信学会信号処理研究会(SIP)
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] 2011東日本大震災における津波堆積物中の重金属類とその分布特性およびリスクについて2018

    • Author(s)
      川辺能成、坂本靖英、原淳子、保高徹生、張銘、駒井武
    • Organizer
      第55回環境工学研究フォーラム
    • Related Report
      2018 Annual Research Report
  • [Presentation] 東日本大震災における津波堆積物中重金属類の分布特性について2018

    • Author(s)
      川辺能成、原淳子、駒井武
    • Organizer
      資源素材(2018)福岡
    • Related Report
      2018 Annual Research Report
  • [Presentation] 数理情報科学による地球科学逆問題への挑戦2018

    • Author(s)
      桑谷立
    • Organizer
      第21回情報論的学習理論ワークショップ(IBIS2018)
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] 岩石風化プロセスのフォーワードモデリングと逆解析2018

    • Author(s)
      桑谷立,赤穂昭太郎
    • Organizer
      資源・素材学会 2018(福岡)
    • Related Report
      2018 Annual Research Report
  • [Presentation] Geochemical Data-processing for extracting geological processes2018

    • Author(s)
      Tatsu Kuwatani
    • Organizer
      15th International Symposium of Mineral Exploration (ISME-XV)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 疎性モデリングによる元素移動量の定量化2018

    • Author(s)
      桑谷立・赤穂昭太郎・吉田健太・上木賢太・大柳良介
    • Organizer
      資源・素材学会 2019年春季大会
    • Related Report
      2018 Annual Research Report
  • [Book] 図説 地球科学の事典 ビッグデータ解析2018

    • Author(s)
      桑谷立、岩森光
    • Total Pages
      12
    • Publisher
      朝倉書店
    • Related Report
      2018 Annual Research Report
  • [Funded Workshop] Water Dynamics 20212021

    • Related Report
      2020 Annual Research Report

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Published: 2018-04-23   Modified: 2023-12-25  

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