FIELD TEST ON UPWELLING PRODUCED BY BOTTOM ROUGHNESS

• YANO Shinichiro

  九州大学大学院 工学研究院環境都市部門

• SAITA Tomonori

  九州大学大学院博士後期課程 工学府海洋システム工学専攻

• OHHARA Masahiro

  芙蓉海洋開発株式会社

• ISHIMURA Tadaaki

  芙蓉海洋開発株式会社

• NISHINOKUBI Hideyuki

  長崎大学水産学部海洋生産システム学講座

• KOMATSU Toshimitsu

  九州大学大学院 工学研究院環境都市部門

Bibliographic Information

Other Title

• 現地試験による流況制御ブロックの湧昇流発生効果の検証

Abstract

Komatsu et al.(1997) have proposed asymetrical bottom structure, that is “Bottom Roughness, ” as a new method to activate tidal exchange between a semi-enclosed bay and an outer sea. On the other hand, it is expected that vertical mixing is enhanced by the upwelling produced by the Bottom Roughness. The Bottom Roughness have been installed in the Isahaya Bay since September, 2002 as a field test to fix on soft ground peculiar to the Ariake Sea. In this research, in situ observations to measure time series of tidal current and water temperature at fixed points near the installed Bottom Roughness were carried out in order to examine degree of vertical current and vertical mixing. As a result of this research, it becomes clear that the Bottom Roughness can produce the downwelling when the current flows in the forward direction, meanwhile the upwelling is produced by the backward flow.

Journal

• PROCEEDINGS OF CIVIL ENGINEERING IN THE OCEAN

  PROCEEDINGS OF CIVIL ENGINEERING IN THE OCEAN 20 881-886, 2004

  Japan Society of Civil Engineers

Keywords

• Bottom Roughness
• Ariake Sea
• Isahaya Bay
• field test
• upwelling
• in situ observation

Details

• CRID: 1390282680179957120
• NII Article ID: 130003776727
• DOI: 10.2208/prooe.20.881
• ISSN: 18848265
• ISSN: 09127348
• Text Lang: ja
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed