关键词: 白马港, 潮流, 准调和分析, 椭圆要素

Abstract: Using the quasi-harmonic method, this paper anchored at the six stations in Baima Gang of Sansha Bay in Fujian Province for 27 hours in April 2015 for study of the tidal current dynamic characteristics. The tidal current elliptic factors were computed, while the current type, tidal motion form and the maximum velocity and direction of fractional tide were also analyzed. It demonstrated that the tidal and current type in Sansha Bay was regular semidiurnal tide; the tidal current mainly presented in N-S reciprocating movement; the magnitude of ebb was larger than flood on the main channel, the ebb time was longer than flood; greater at the mouth and smaller at the upper station, the velocity decreased gradually from surface to bottom generally, but performed fuzzy lay phenomenon and circulation structure; the long axis meant value of M2 component tide was between 47~64 cm/s, greater at the mouth and the upper of Baima Gang.

Key words: Baima Gang, tidal currents, quasi-harmonic analysis, elliptic factors