Simulation of large freshwater behavior in Hakata Bay due to torrential rain using nested two-dimensional model

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

抜粋

In this study, a numerical simulation consisting of a two-dimensional model of Hakata Bay, Kyushu Island. Japan, was conducted to analyze the impact oflarge river discharges due to torrential rain. Since Fukuoka city, one of the largest cities in Japan, surrounds Hakata Bay, the bay has a very complex environment, including an artificial island (Island City) in its eastern region and small bay (Imazu Bay) where tideland is spread with rich ecosystems in its western region. Tank models were applied to calculate the discharges of the 38 rivers that flow into Hakata Bay, and a two-way nesting technique, "edge nesting," was developed and applied in the model to capture the influence of complex geographical features, such as the Island City area and the Imazu Bay area, which were nested with a high-resolution mesh. The model accurately reproduced the observed tidal current and salinity data. To simulate the behavior oflarge river discharges, a historical simulation period including a torrential rain event (163.5 mm/d) was input into the model. The results showed that after the rain event, low-salinity water covered the entire inner part of Hakata Bay, and freshwater covered the entire area of the tidal flats and flowed out from the mouth of Imazu Bay. The behavior of this large mass of fresh water was remarkably different from usual discharge river flow. These results indicate that the environment in the bay can be significantly changed by torrential rain events.

元の言語英語
ホスト出版物のタイトルProceedings - International Association for Hydro-Environment Engineering and Research (IAHR)-Asia Pacific Division (APD) Congress
ホスト出版物のサブタイトルMulti-Perspective Water for Sustainable Development, IAHR-APD 2018
編集者Muhammad Ramdhan Olii, Djoko Legono, Ani Hairani, Benazir, Warniyati Warniyati, Hendy Setiawan, Roby Hambali, Johan Syafri Mahathir Ahmad, Karlina
出版者Department of Civil and Environmental Engineering, Faculty of Engineering, Universitas Gadjah Mada
ページ521-529
ページ数9
ISBN(電子版)9786027176270
出版物ステータス出版済み - 9 1 2018
イベント21st Congress of International Association for Hydro-Environment Engineering and Research-Asia Pacific Division: Multi-Perspective Water for Sustainable Development, IAHR-APD 2018 - Yogyakarta, インドネシア
継続期間: 9 2 20189 5 2018

出版物シリーズ

名前Proceedings - International Association for Hydro-Environment Engineering and Research (IAHR)-Asia Pacific Division (APD) Congress: Multi-Perspective Water for Sustainable Development, IAHR-APD 2018
1

会議

会議21st Congress of International Association for Hydro-Environment Engineering and Research-Asia Pacific Division: Multi-Perspective Water for Sustainable Development, IAHR-APD 2018
インドネシア
Yogyakarta
期間9/2/189/5/18

All Science Journal Classification (ASJC) codes

  • Ecology
  • Environmental Engineering

フィンガープリント Simulation of large freshwater behavior in Hakata Bay due to torrential rain using nested two-dimensional model' の研究トピックを掘り下げます。これらはともに一意のフィンガープリントを構成します。

  • これを引用

    Fukuda, A., Tabata, T., Honda, Y., Hiramatsu, K., & Masayoshi, H. (2018). Simulation of large freshwater behavior in Hakata Bay due to torrential rain using nested two-dimensional model. : M. R. Olii, D. Legono, A. Hairani, Benazir, W. Warniyati, H. Setiawan, R. Hambali, J. S. M. Ahmad, & Karlina (版), Proceedings - International Association for Hydro-Environment Engineering and Research (IAHR)-Asia Pacific Division (APD) Congress: Multi-Perspective Water for Sustainable Development, IAHR-APD 2018 (pp. 521-529). (Proceedings - International Association for Hydro-Environment Engineering and Research (IAHR)-Asia Pacific Division (APD) Congress: Multi-Perspective Water for Sustainable Development, IAHR-APD 2018; 巻数 1). Department of Civil and Environmental Engineering, Faculty of Engineering, Universitas Gadjah Mada.