AM06-27-002 漂流ブイを用いた表層流観測による島半原島沿岸の物質輸送機構の検討(有明海の流れ,一般講演)

概要

論文の詳細を見る
Recently, serious aquatic environmental problems, such as large-scale red tide and oxygen depression have occurred in the Ariake Bay. As a result of previous studies, it is considered that a horizontal shear flow in a coastal area off the Shimabara Peninsula plays an important role in substance transport and tidal exchange in the northern area of the Ariake Bay. However, observations for a quantitative evaluation of the phenomena have not been executed, yet. In this study, two field observations were carried out by using the Lagrangian method in December 2005 and January 2006 in order to clarify behavior of water body or substance in the coastal area. As a result of this study, it was clarified that the strong tidal current with horizontal shear in the coastal area brings about a large tidal excursion that is more than 10km in spring tides and a strong longitudinal dispersion effect.
日本流体力学会の論文
2006-09-05