南黄海辐射沙洲成因的潮流数值模拟解释

EXPLANATION OF THE ORIGIN OF RADIAL SAND RIDGES IN THE SOUTHERN YELLOW SEA WITH NUMERICAL SIMULATION RESULTS OF TIDAL CURRENTS

用接近计算海域自然陆架坡度的均匀倾斜海底，对南黄海辐射沙洲区的潮流椭圆和潮流场进行数值模拟的结果表明：辐射状潮流场不依赖于海底地形而存在，相反，可能是产生和塑造辐射沙洲的主要动力。并用潮流和潮余流的计算结果，对沙洲区海底沉积物的运移、分布。

On the basis of analyzing the numerical simulation results of tidal current ellipses and tidal current field on the slope of Radial Sand Ridges in the Southern Yellow Sea, the following conclusion is reached: the radial tidal current field has no relation to sea bottom topography; on the contrary, it may be the main dynamics forming and constructing the radial sand ridges. This paper also successfully explains the transport and distribution of sediments, the asymmetry, i.e. the northern ridges are large while the southern ridges are small, and the change trend of the radial sand ridges with the computational results of tidal currents and tidal residual currents.