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Flood quantile estimation by interpolation using pseudo-discharge data generated by a physically-based hydrologic model utilizing atmospheric re-analysis data

Research Project

Project/Area Number 16K14309
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Hydraulic engineering
Research InstitutionKyoto University

Principal Investigator

Yorozu Kazuaki  京都大学, 工学研究科, 講師 (90554212)

Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2018: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2016: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Keywords大気再解析データ / 分布型水循環モデル / 河川流量 / チャオプラヤ川 / ブミポンダム / 年最大日流量 / 擬似作成 / 土壌水分 / 大気再解析 / 超長期河川流量 / 模擬作成 / 100年確率流量
Outline of Final Research Achievements

For river planning and basin water resources management, it is necessary to determine the design water level which has long term return period. In general, observation record is shorter than that. Therefore, pseudo-discharge data is generated much enough to determine design level. There are many methods for generating pseudo-discharge data.
In this research, numerous atmospheric data was created by recombining both atmospheric reanalysis data and satellite based observed rainfall data as a data could be happened in actual situation. And then, Bhumibol dam inflow was calculated utilizing a distributed hydrologic model by those data. A histogram of annual maximum daily river discharge from generated long-term river discharge data was similar with that of original data.

Academic Significance and Societal Importance of the Research Achievements

河川流量について,観測データは限られた年数しか得ることができない.そのため,河川計画に重要となる100年確率流量を外挿によって求めるしかなかった.しかし,本研究において,限られた年数しか存在しない気象データから,多数年におよぶ河川流量データを擬似的に作成する手法が提案された.

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (6 results)

All 2019 2018 2016

All Journal Article (2 results) (of which Peer Reviewed: 2 results) Presentation (4 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] Investigating the effect of initial soil moisture on river discharge using pseudo-discharge data generated by a distributed hydrologic model2019

    • Author(s)
      Kazuaki Yorozu, Yutaka Ichikawa and Yasuto Tachikawa
    • Journal Title

      Proceedings of THA 2019 International Conference on Water Management and Climate Change towards Asia's Water-Energy-Food NEXUS and SDGs

      Volume: -

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 大気場の組み替えと分布型水循環モデルによる多数年におよぶ河川流量データ作成の研究2018

    • Author(s)
      萬和明, 黒崎直哉, 市川温, キムスンミン, 立川康人
    • Journal Title

      土木学会論文集B1(水工学)

      Volume: 74

    • NAID

      130007628107

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Presentation] Investigating the effect of initial soil moisture on river discharge using pseudo-discharge data generated by a distributed hydrologic model2019

    • Author(s)
      Kazuaki Yorozu, Yutaka Ichikawa and Yasuto Tachikawa
    • Organizer
      THA2019
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 分布型水循環モデルで作成した疑似流量データによる確率流量の推定可能性2018

    • Author(s)
      萬和明,黒崎直哉,立川康人,田中智大,市川温,Kim Sunmin
    • Organizer
      水文・水資源学会 総会・研究発表会
    • Related Report
      2018 Annual Research Report
  • [Presentation] JRA-55と分布型水循環モデルを用いた多数年に及ぶ流量データの擬似作成の提案2016

    • Author(s)
      黒崎直哉,萬和明,立川康人,市川温
    • Organizer
      水文・水資源学会2016年度研究発表会
    • Place of Presentation
      コラッセふくしま
    • Year and Date
      2016-09-15
    • Related Report
      2016 Research-status Report
  • [Presentation] 大気再解析データと分布型水循環モデルを用いた多数年におよぶ河川流量データの擬似作成に関する研究2016

    • Author(s)
      萬和明, 黒﨑直哉,市川温,立川康人
    • Organizer
      土木学会平成28年度全国大会第71回年次学術講演会
    • Place of Presentation
      東北大学川内北キャンパス
    • Year and Date
      2016-09-07
    • Related Report
      2016 Research-status Report

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Published: 2016-04-21   Modified: 2020-03-30  

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