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Reanalysis and Reproduce of Long-term Hydrologic Data using Limited Observation

Research Project

Project/Area Number 26630226
Research Category

Grant-in-Aid for Challenging Exploratory Research

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

Principal Investigator

Kim Sunmin  京都大学, 工学研究科, 准教授 (10546013)

Project Period (FY) 2014-04-01 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2016: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2015: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2014: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords水文データ / 再解析 / 長期水文データ / 再解析データ / 水文モデル / 再解析流量 / 流量再解析 / 利根川流域
Outline of Final Research Achievements

This study tested various hydrologic model such as, Kinematic Wave model, Tank model, Artificial Neural Network model (ANN), to reproduce and reanalysis the long-term hydrologic data, especially for river discharge data. Among those tested hydrological models, ANN model provides plausible results with its modeling flexibility and estimation performance. ANN model allows us to model by linking any variables that are related without physical connectivity and physical concept behind.
First application was on the long-term dam inflow estimation for Naramata Dam reservoir at the upper basin of the Tone river. Second application was on water stage estimation by utilizing the water stage information from neighboring water gauge stations. Both results provide prominent results to reproduce hydrologic data for long-term data reanalysis.

Report

(4 results)
  • 2016 Annual Research Report   Final Research Report ( PDF )
  • 2015 Research-status Report
  • 2014 Research-status Report
  • Research Products

    (3 results)

All 2017 2016

All Presentation (3 results) (of which Int'l Joint Research: 2 results)

  • [Presentation] Reanalysis on Daily Discharge in Snow Dominant Region considering Uncertainty in Snow Measurement2017

    • Author(s)
      Sunmin Kim, Yasuto Tachikawa, and Eiichi Nakakita
    • Organizer
      Symposium On The Effects Of Global Change On Floods And Related Hazards In Mountainous Rivers
    • Place of Presentation
      Potsdam, Germany
    • Year and Date
      2017-03-06
    • Related Report
      2016 Annual Research Report
  • [Presentation] Reconstruction of Long-Term Discharge Data in a Snow Dominant Region considering Uncertainty in Snow Measurement2016

    • Author(s)
      Sunmin Kim, Yasuto Tachikawa, and Eiichi Nakakita
    • Organizer
      AGU 2016 Fall Meeting
    • Place of Presentation
      San Francisco, USA
    • Year and Date
      2016-12-15
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Reanalysis of Long-Term Discharge Data in a Snow Dominant Region2016

    • Author(s)
      Sunmin Kim, Yasuto Tachikawa, and Eiichi Nakakita
    • Organizer
      AOGS 2016 Annual Meeting
    • Place of Presentation
      Beijing, Chaina
    • Year and Date
      2016-08-01
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research

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Published: 2014-04-04   Modified: 2018-03-22  

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