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LIN Zuoliang, ZHU Xueming, BAO Xianwen, LIU Qinzheng. Three-dimensional tide and tidal current numerical simulation based on FVCOM in Quanzhou Bay[J]. Haiyang Xuebao, 2013, 35(1): 15-24. doi: 10.3969/j.issn.0253-4193.2013.01.003
Citation:
LIN Zuoliang, ZHU Xueming, BAO Xianwen, LIU Qinzheng. Three-dimensional tide and tidal current numerical simulation based on FVCOM in Quanzhou Bay[J]. Haiyang Xuebao, 2013, 35(1): 15-24. doi: 10.3969/j.issn.0253-4193.2013.01.003
LIN Zuoliang, ZHU Xueming, BAO Xianwen, LIU Qinzheng. Three-dimensional tide and tidal current numerical simulation based on FVCOM in Quanzhou Bay[J]. Haiyang Xuebao, 2013, 35(1): 15-24. doi: 10.3969/j.issn.0253-4193.2013.01.003
Citation:
LIN Zuoliang, ZHU Xueming, BAO Xianwen, LIU Qinzheng. Three-dimensional tide and tidal current numerical simulation based on FVCOM in Quanzhou Bay[J]. Haiyang Xuebao, 2013, 35(1): 15-24. doi: 10.3969/j.issn.0253-4193.2013.01.003
Based on a finite-volume coastal ocean model (FVCOM), adopting an unstructured triangle grid, a three-dimensional tide and tidal current numerical modeling with high resolution (26 m) is applied to Quanzhou Bay. The simulated results agree well with the observed data from two tide-gauges and three continuing current stations, and reproduce the distribution features of the tide and tidal currents in the Quanzhou Bay famously. The distributions of co-tidal charts and tidal ellipses on the surface layer for four major constituents (M2,S2,K1,O1) are obtained. What's more, the distributions of the maximum probable tidal range and tidal currents velocity and tidal residual currents on the surface and bottom layers are obtained, too. By analyzing, the maximum tidal amplitude and phase-lag range for the four constituents are 219 cm and 19°,85 cm and 25°,26 cm and 12°,26 cm and 9°, respectively. The tidal wave is anti-clockwise standing wave in the east area of Shihu Port, but it is advancing wave in the west area of Shihu Port. The maximum probable tidal range increases from 8.0 m at the mouth of the bay to 8.8 m inside of the bay. The type of tidal currents is regular semi-diurnal currents inside of the bay, and the maximum velocity of ebbing is larger than flooding. The velocity in the channel of Beiwujiao is stronger than any other area, and the maximum probable tidal-current velocity is 2.4 m/s on the surface layer. The flow is rotating with anti-clockwise mainly at the mouth of the bay, while rectilinear flow is mainly inside of the bay, such as estuaries and channels. And the directions of major axes are along with channels direction mainly, or paralleling with isobaths and coastlines. The maximum tidal current velocities for the four major constituents are 1.4 m/s,0.58 m/s,0.12 m/s,0.10 m/s on the surface layer, respectively. Tidal residual currents velocity is closely related to tidal currents, the maximum velocities on the surface layer, the middle layer and the bottom layer are 26 cm/s, 20 cm/s, 16 cm/s, respectively. All of them are coming into the bay from north and going out of the bay from south.
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Chen C, Beardsley R C, Cowles G. An Unstructured Grid, Finite-Volume Coastal Ocean Model: FVCOM User Manual(Second Edition). Tech. Rep. 06-0602, School for Mar. Sci. and Technol. (SMAST)/Univ. of Mass.-Dartmouth(UMASSD), New Bedford, Mass,2006:38-39.
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