Long-term offshore sediment transport and sedimentation using radiocarbon dating

• Project/Area Number: 25820235
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Hydraulic engineering
• Research Institution: Port and Airport Research Institute
• Principal Investigator: BANNO Masayuki 国立研究開発法人港湾空港技術研究所, その他部局等, その他 (80549204)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Project Status: Completed (Fiscal Year 2015)
• Budget Amount: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000); Fiscal Year 2014: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2013: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
• Keywords: 海底コア / 放射性炭素年代測定 / 海浜地形変化 / 長期土砂移動 / 鹿島港 / 漂砂 / 海洋投入土砂 / 堆積環境 / 地形変化 / トレーサー / 陸上ボーリングコア

Outline of Final Research Achievements

This study investigated sediment depositions and the origins at a water depths of 9 to 19 m at Kashima-nada Sea by radiocarbon dating of shells contained in the seabed core samples. Approximately 50 million cubic meters of sediments were generated during a port construction and dumped into the sea from 1965 to 1977. The dumped sediments were distributed in the wide-area offshore seabed cores and affected nearshore bathymetry change through transporting onshore.

Research Products

• [Journal Article] 波崎海岸における汀線の長期的前進傾向 (2016)
  • Author(s): 伴野雅之・栗山善昭・武若聡
  • Journal Title: 港湾空港技術研究所資料 Volume: 1316 Pages: 1-31
  • NAID: 40020823613
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] 放射性炭素年代測定を用いた海底土砂の長期的移動・堆積履歴の推定 (2013)
  • Author(s): 伴野雅之・清家弘治・小松原純子・栗山善昭
  • Journal Title: 土木学会論文集B2(海岸工学) Volume: 69 Pages: 686-690
  • NAID: 130004551170
  • Peer Reviewed
• [Presentation] MULTIDECADAL SHORELINE EVOLUTION ON THE HASAKI COAST OF JAPAN -JAPANESE SAND ENGINE?- (2016)
  • Author(s): Masayuki Banno, Koji Seike, Satoshi Takewaka and Yoshiaki Kuriyama
  • Organizer: 35th International Conference on Coastal Engineering
  • Place of Presentation: Istanbul/Turkey
  • Year and Date: 2016-07-17
  • Int'l Joint Research
• [Presentation] 鹿島灘における広域底質粒径調査 (2014)
  • Author(s): 伴野雅之
  • Organizer: 第波崎海洋研究施設研究成果報告会
  • Place of Presentation: 茨城県はさき漁業協同組合
  • Year and Date: 2014-12-17
• [Presentation] RADIOCARBON DATING TO INVESTIGATE THE DISTRIBUTION OF DUMPED SEDIMENT (2014)
  • Author(s): Banno, M. and Seike, K.
  • Organizer: Ocean Sciences Meeting 2014
  • Place of Presentation: Honolulu
• [Presentation] 鹿島灘における海洋投入土砂の長期的移動と堆積 (2013)
  • Author(s): 伴野雅之・清家弘治・小松原純子・栗山善昭
  • Organizer: 日本地球惑星科学連合大会
  • Place of Presentation: 幕張