荘内半島先端の潮流の特性について

概要

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The east of the Hiuchi Nada is the sea area where tidal currents are the weakest in the Seto Inland Sea. The amplitude of M_2 currents and the residual currents in this area are about 10cm/sec and 5∿7cm/sec, respectively; the velocity of the latter currents exceeds 50% of the velocity of the former ones. The assumed mechanism generating these strong residual currents is that a separation of current occurs from the headland of the Shonai Peninsula during the period of south westward current off the headland and this separation supplies anti clockwise vorticity. In order to confirm this mechanism, we conducted a flow-pattern observation by using an ADCP (Acoustic Doppler Current Profiler) attached to the training vessel Yuge-Maru. It was found that the separation occurred, though the maximum southwestward current was weak (0.3m/s off the headland) during the observation period.
弓削商船高等専門学校の論文
1992-02-28