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Development of a stochastic shoreline change model considering changes in sediment supply from rivers to the coast due to climate change

Research Project

Project/Area Number 18H01538
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 22040:Hydroengineering-related
Research InstitutionTohoku University

Principal Investigator

Udo Keiko  東北大学, 災害科学国際研究所, 准教授 (80371780)

Co-Investigator(Kenkyū-buntansha) 竹林 洋史  京都大学, 防災研究所, 准教授 (70325249)
峠 嘉哉  東北大学, 工学研究科, 助教 (90761536)
Project Period (FY) 2018-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥15,730,000 (Direct Cost: ¥12,100,000、Indirect Cost: ¥3,630,000)
Fiscal Year 2021: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2020: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2019: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2018: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Keywords土砂収支 / 汀線変化 / 土砂生産 / Cross-shoreモデル / 広域土砂収支 / 河川土砂動態 / RUSLE / PCR
Outline of Final Research Achievements

Sandy beaches are deformed under the influence of changes in sediment supply from mountainous areas, through rivers, to the coast, in addition to coastal and offshore drift and blown sand parallel and perpendicular to the coastline. In particular, the sediment supply from rivers is known to have a significant impact on coastal sediment transport. For effective coastal management to adapt future climate change, it is essential to integrate these models and develop a long-term shoreline change model considering the sediment supply. In this study, each of these sediment dynamics models was constructed and incorporated into a shoreline change model to develop a future long-term prediction model capable of estimating shoreline, berm, and dune locations.

Academic Significance and Societal Importance of the Research Achievements

砂浜は,豊かな生態系を育み,レクリエーションの場を提供すると同時に,災害時には内陸部への水の侵入を抑制する減災機能を有する貴重な空間である.一方で,将来は気候変動による波浪特性変化や海面上昇等が予測されており,沿岸域に人口と資産が集積する我が国をはじめ世界の低平地で,海岸侵食に伴う高波や高潮等の沿岸災害の増大により重大な影響が生じると考えられる(IPCC,2013).現時点でも既にその兆候は顕在化しており,生態系や人間社会への影響が大きい砂浜侵食の長期予測技術を開発することはその適切な管理を行う上で重要な役割を果たす.

Report

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

    (15 results)

All 2022 2021 2020 Other

All Int'l Joint Research (1 results) Journal Article (2 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 2 results,  Open Access: 1 results) Presentation (12 results) (of which Int'l Joint Research: 2 results,  Invited: 1 results)

  • [Int'l Joint Research] IHE Delft Institute for Water Education(オランダ)

    • Related Report
      2021 Annual Research Report
  • [Journal Article] Climate change driven shoreline change at Hasaki Beach Japan: A novel application of the Probabilistic Coastline Recession (PCR) model2022

    • Author(s)
      Dastgheib Ali、Martinez Carolina、Udo Keiko、Ranasinghe Roshanka
    • Journal Title

      Coastal Engineering

      Volume: 172 Pages: 104079-104079

    • DOI

      10.1016/j.coastaleng.2021.104079

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] CROSS-SHORE MODEL APPLICATION TO HASAKI BEACH, JAPAN2021

    • Author(s)
      KATO Koshi、UDO Keiko
    • Journal Title

      Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)

      Volume: 77 Issue: 2 Pages: I_613-I_618

    • DOI

      10.2208/kaigan.77.2_I_613

    • NAID

      130008113317

    • ISSN
      1883-8944, 1884-2399
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] RUSLEモデルと SDR式を用いた土砂生産量推定に関する研究2022

    • Author(s)
      葛城遥佳・有働恵子
    • Organizer
      令和3年度 土木学会東北支部技術研究発表会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 吉野川での砂利採取およびダム建設が河川の土砂動態に与える影響2022

    • Author(s)
      中原大輔・有働恵子
    • Organizer
      令和3年度 土木学会東北支部技術研究発表会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 日本国内における崖海岸侵食推定モデルの構築と精度の向上2022

    • Author(s)
      的場慧人・有働恵子
    • Organizer
      令和3年度 土木学会東北支部技術研究発表会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Development of economic evaluation framework for aptation to future beach loss2021

    • Author(s)
      Keiko Udo
    • Organizer
      3rd JSCE-CCES JOINT SYMPOSIUM OF CIVIL ENGINEERING
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 海岸における土砂移動と地形変化2021

    • Author(s)
      有働恵子
    • Organizer
      日本地球惑星科学連合2021年大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 河川から海岸への土砂供給を考慮した砂浜消失予測に向けて2020

    • Author(s)
      有働恵子
    • Organizer
      第28回海洋工学シンポジウム
    • Related Report
      2020 Annual Research Report
  • [Presentation] CROSS-SHORE MODEL APPLICATION TO HASAKI BEACH, JAPAN:EVALUATION OF PARAMETER SETTINGS2020

    • Author(s)
      Koshi Kato and Keiko Udo
    • Organizer
      Virtual International Conference on Coastal Engineering (vICCE2020)
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] CROSS -SHOREモデルの波崎海岸への適用およびパラメータ設定の評価2020

    • Author(s)
      加藤考志・有働恵子
    • Organizer
      土木学会東北支部技術研究発表会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 令和元年台風第19号による阿武隈川から海岸への土砂流出解析2020

    • Author(s)
      小林誠・有働恵子
    • Organizer
      土木学会東北支部技術研究発表会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 日本における崖海岸の侵食モデルの構築2020

    • Author(s)
      古谷仁・有働恵子
    • Organizer
      土木学会東北支部技術研究発表会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 将来の河川から海岸までの土砂移動特性の変化2020

    • Author(s)
      竹林洋史
    • Organizer
      第28回海洋工学シンポジウム
    • Related Report
      2020 Annual Research Report
  • [Presentation] 将来気候における降雨特性の変化と土砂生産量への影響推定2020

    • Author(s)
      峠嘉哉・有働恵子・風間聡
    • Organizer
      第28回海洋工学シンポジウム
    • Related Report
      2019 Annual Research Report

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Published: 2018-04-23   Modified: 2023-01-30  

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