冬季苏北辐射沙洲水域悬沙分布及输运特征分析

摘要

In order to reveal the characteristics of sediment distribution and transport in water areas of radial sand ridges in northem Jiangsu Province, the mean sediment concentration fields and the corresponding trajectories of water particles were simulated by using the mathematical models for tidal currents and sediment transport. The results indicate that the sediment concentration in the study area has a decreasing tendency with the Tiaozini water area being centered towards the surrounding areas. Meanwhile, the tidal inlets are the important channels for sediment and water exchanges between the inner and outer water areas.%为揭示苏北辐射沙洲水域泥沙分布及输运的特征,利用潮流及泥沙输运数学模型,给出了辐射沙洲水域的潮平均含沙量场和对应的水质点运动轨迹.分析表明:该水域含沙量呈现以条子泥附近水域为中心,呈辐射状向外围递减的趋势;潮汐通道是辐射沙洲内部水域与外部水域进行水沙交换的重要通道.