IN SITU MEASUREMENT ON TIDAL CURRENT OFF THE SHIMABARA PENINSULA IN THE ARIAKE BAY, JAPAN
Recently, reduction of fish catch and poor harvest of cultured laver in the Ariake Bay have been a serious social problem in Japan. It is suspected that construction of the Isahaya Sea-Dike causes deterioration of the aquatic environment in the Ariake Bay. Although several studies on the aquatic environment have ever been carried out, the causes of the deterioration have not been understood clearly. In this study, in order to understand the role of a tidal current in the tidal exchange phenomena in the northern coastal area off Shimabara Peninsula, in situ measurements on a tidal current by Acoustic Doppler Current Profilers (ADCPs) and on density stratification by multi-factor profilers were carried out. As a result of this study, it was observed that the phase of the tidal current near the coast is earlier than other areas. It is considered that the characteristic of the tidal current is brought about by oscillatory boundary layer. Findings of the present study imply that it is very important to carry out high-resolution field observation and numerical simulation in order to understand tidal transport well.
tidal current ADCP boundary layer of oscillatory flow the Ariake Bay
T.Saita S.Yano A.Tai Y.Hashimoto T.Komatsu
Department of Urban and Environmental Engineering, Kyushu University,744 Motooka Nishi-ku Fukuoka, 8 Department of Urb.an and Environmental Engineering, Kyushu University,744 Motooka Nishi-ku Fnkuoka, Department of Marine Systems Engineering, Kyushu University,744 Motooka Nishi-ku Fukuoka, 819-0395, Nippon Telegraph and Telephone West Corporation, 3-15 Bamba-cho, Chuo-ku, Osaka 540-8511, Japan
国际会议
第16届亚太地区国际水利学大会暨第3届水工水力学国际研讨会(16th IAHR-APD Congress and 3rd Symoposium of IAHR-ISHS)
南京
英文
1376-1381
2008-10-20（万方平台首次上网日期，不代表论文的发表时间）