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Generation mechanisms of long-period waves in the East China Sea and development of methods for predicting meteotsunamis

Research Project

Project/Area Number 17K06585
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Hydraulic engineering
Research InstitutionKagoshima University

Principal Investigator

Kakinuma Taro  鹿児島大学, 理工学域工学系, 准教授 (70371755)

Co-Investigator(Kenkyū-buntansha) 安田 誠宏  関西大学, 環境都市工学部, 准教授 (60378916)
加古 真一郎  鹿児島大学, 理工学域工学系, 助教 (60709624)
Project Period (FY) 2017-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2019: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2018: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2017: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Keywords気象津波 / 東シナ海 / あびき / 気圧波 / 長周期波 / 内部波 / 噴火 / 副振動 / 推算 / 簡易式 / 海洋長波 / 微気圧変動 / インド洋 / 数値解析 / 気圧変動 / 大気・海洋相互作用 / 逆解析 / 湾水振動
Outline of Final Research Achievements

First, we developed a numerical model for the atmospheric and water motion from the continent to the coastal areas. Second, assuming several meteorological conditions including atmospheric pressure distributions, the meteorological and marine factors that caused meteotsunamis were estimated based on the numerical results with the atmospheric pressure waves. Third, we numerically simulated meteotsunami generation. Furthermore, we have developed a system for predicting the occurrence of meteotsunamis that can be applied in the field.

Academic Significance and Societal Importance of the Research Achievements

まず、中国大陸、南シナ海及び東シナ海の気象状況・海面温度の初期条件から、特定の湾内で発生するあびきの振幅が算定できる数値モデルを構築した。次に、東シナ海に海洋長周期波を発生させる、中国大陸、南シナ海及び東シナ海の気象状況及び海面温度のパターンを検出した。そして、上記モデルをリアルタイム予測に適用できるよう改良した。これらの気象・海象要因と、気象庁が提供する数値予報データや気象衛星画像との比較や、あびき振幅の簡易予測式により、あびきの発生予測が容易にできるシステムを開発した。大陸上の気象とあびきの関連に関して不明な点があるものの、簡易予測に関しては、実用的な予測式を組み立てることができた。

Report

(4 results)
  • 2021 Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (9 results)

All 2019 2018

All Journal Article (4 results) (of which Peer Reviewed: 2 results,  Open Access: 3 results) Presentation (4 results) (of which Int'l Joint Research: 2 results,  Invited: 1 results) Book (1 results)

  • [Journal Article] Long-wave generation due to atmospheric-pressure variation and harbor oscillation in harbors of various shapes and countermeasures against meteotsunamis2019

    • Author(s)
      Kakinuma, T.
    • Journal Title

      Natural Hazards

      Pages: 205-224

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] 水深が変化する水域を伝播する内部波の数値解析2018

    • Author(s)
      柿沼太郎, 越智直人, 山下 啓, 中山恵介
    • Journal Title

      京都大学数理解析研究所講究録「非線形波動現象の数理とその応用」

      Volume: 2076 Pages: 67-75

    • NAID

      130007504070

    • Related Report
      2018 Research-status Report
    • Open Access
  • [Journal Article] 水深が変化する水域を伝播する内部波の数値解析2018

    • Author(s)
      越智直人, 柿沼太郎, 中山恵介
    • Journal Title

      土木学会論文集B2(海岸工学)

      Volume: 74

    • NAID

      130007504070

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] A numerical calculation for internal waves over topography2018

    • Author(s)
      Kakinuma, T., Ochi, N., Yamashita, K. and Nakayama, K.
    • Journal Title

      Proc. Int. Conf. on Coastal Eng.

      Volume: 36

    • Related Report
      2018 Research-status Report
    • Open Access
  • [Presentation] 大陸斜面上を伝播する非線形内部波2018

    • Author(s)
      柿沼太郎
    • Organizer
      科研費研究会
    • Related Report
      2018 Research-status Report
  • [Presentation] 様々な種類の津波を対象とした数値解析2018

    • Author(s)
      柿沼太郎
    • Organizer
      AIMaP異分野連携ワークショップ「海岸・海洋における非線形問題に対する数学的手法の展開-モデリング,解析,数値計算-」
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] A numerical calculation for internal waves over topography2018

    • Author(s)
      Kakinuma, T.
    • Organizer
      36th Int. Conf. on Coastal Eng.
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] A numerical calculation for internal waves over a slope or a mound2018

    • Author(s)
      Kakinuma, T.
    • Organizer
      Workshop on Nonlinear Water Waves In honor of Professor Mitsuhiro Tanaka on the occasion of his retirement
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Book] Natural Hazards2019

    • Author(s)
      Kakinuma, T.
    • Total Pages
      29
    • Publisher
      InTech
    • Related Report
      2018 Research-status Report

URL: 

Published: 2017-04-28   Modified: 2025-01-30  

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