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用辐射沙脊群水域潮流场、波浪场和风暴流场的数值模拟结果解释了黄海海底辐射沙脊群形成演变的动力机制 .山东半岛南侧的逆时针旋转潮波和南黄海的后继前进潮波在港外海辐聚 ,形成辐射状的潮流场 .该潮流场为形成和维持辐射沙脊群提供了必要的动力环境 .全新世古流场的模拟结果指出 ,在古河口外有一潮流辐聚辐散带 ,在其作用下发育了古河口堆积体 .波浪场的计算结果说明 ,只有在高潮位和大风速下 ,沙脊区的波高普遍较大 ,对海底地貌的影响才较明显 .长江口登陆型和海上转向型台风的风暴流场对沙脊区有明显影响 .辐射沙脊群的形成机制是潮流形成———风暴破坏———潮流恢复
The dynamic mechanism of formation and evolution of submarine radiant sand ridges in the Yellow Sea is explained by the numerical simulation results of tidal flow field, wave field and storm flow field in the radiant sand ridges. The anticlockwise tidal wave on the south side of Shandong Peninsula and the succession of the southern Yellow Sea The waves converge on the outer sea of Xingang port to form a radial tidal current field which provides the necessary dynamic environment for the formation and maintenance of radiant sand ridges.The simulation results of the Paleocene ancient flow field indicate that there is a tidal convergence radiation And the ancient estuary sediments are developed under its action.The calculation results of the wave field show that the wave height of the sand ridge area is generally large only at the high tide level and the large wind speed, The storm flow field of land-based and offshore steering typhoon has a significant impact on the ridge region.The formation mechanism of radiant sand ridges is the formation of tidal current --- the storm damage --- the tidal current restoration