Accurate sediment transport numerical model development to unravel environmental problems in Ariake Sea

• Project/Area Number: 22560796
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Naval and maritime engineering
• Research Institution: Saga University
• Principal Investigator: HAMADA Takaharu 佐賀大学, 低平地沿岸海域研究センター, 准教授 (30294979)
• Co-Investigator(Renkei-kenkyūsha): KYOZUKA Yusaku 九州大学, 大学院・総合理工学研究院, 教授 (80177948)
• Project Period (FY): 2010 – 2012
• Project Status: Completed (Fiscal Year 2012)
• Budget Amount: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000); Fiscal Year 2012: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2011: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000); Fiscal Year 2010: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
• Keywords: 海洋環境 / 沿岸海洋学 / 海洋工学 / 数値シミュレーション / 懸濁物質 / 有明海 / cohesive sediment

Research Abstract

A new sediment transport numerical model was developed to unravel environmental problems in Ariake Sea. The model treats grain size fraction and bottom sediment layers. The model was developed as vertical 1-dimensional model and then adopted to FVCOM as 3-dimensional model. The source code was distributed online.3-dimensional erosion property mapping of Ariake Sea was also conducted. The result is applied to the model and the model reproduced the sediment dynamics well.

Research Products

• [Presentation] 諌早湾潮受け堤防水門開門による環境変化 (2013)
  • Author(s): 濱田 孝治
  • Organizer: 最終報告シンポジウム「佐賀大学 有明海における環境変化の解明と予測プロジェクト」
  • Place of Presentation: 佐賀大学
  • Year and Date: 2013-03-11
• [Presentation] 諌早湾潮受け堤水門開門による環境変化 (2013)
  • Author(s): 濱田孝治
  • Organizer: 最終報告シンポジウム「有明海における環境変化の解明と予測プロジェクト」
  • Place of Presentation: 佐賀大学
• [Presentation] Numerical simulation of sediment transport in Ariake Bay (2011)
  • Author(s): Takaharu Hamada
  • Organizer: 11th International Conference on Cohesive Sediment Transport Processes (INTERCOH XI)
  • Place of Presentation: Shanghai-China(poster)
  • Year and Date: 2011-10-18
• [Presentation] Numerical simulation of sediment transport in Ariake Bay (2011)
  • Author(s): Takaharu Hamada, Soichi Yamaguchi,Koichi Yamamoto, Yuichi Hayami, Kenji Yoshino, Koichiro Ohgushi, Toshiya Katano, Makoto Yoshida, Ryuichi Hirakawa
  • Organizer: 11th International Conference of Cohesive Sediment Transport Processes (INTERCOHXI) (poster)
  • Place of Presentation: Shanghai-China
• [Book] 平成24年度数値解析モデルによる有明海再生方策に関する研究（諫早湾潮受堤防排水門開門による環境改善効果） (2013)
  • Author(s): 濱田孝治
  • Total Pages: 63
  • Publisher: 佐賀大学低平地沿岸海域研究センター
• [Remarks] 多分画・多層底泥に対応した懸濁物質輸送モデル
  • URL: http://www.ilt.saga-u.ac.jp/hamada/wiki/
• [Remarks] 報告書 濱田孝治(代表) 平成23年度数値解析モデルによる有明海再生方策に関する研究(諫早湾潮受堤防排水門開門による環境改善効果), 86 pages (2012).
• [Remarks] 多分画・多層底泥に対応した懸濁物質輸送モデル
  • URL: http://www.ilt.saga-u.ac.jp/hamada/wiki/