SURFACE SEDIMENT DISTRIBUTION PATTERN AND TRANSPORT TREND OF THE JIULONG BAY, WEIHAI
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摘要: 以表层沉积物粒度、岸滩剖面测量和不同时期的水深地形测量资料为基础,分析了威海九龙湾的表层沉积物分布特征、岸滩剖面形态及水深地形变化,同时对研究区沿岸输沙率进行计算,并探讨了水动力环境与沉积物运移规律之间的关系。结果表明,表层沉积物分布呈现由岸向海逐渐变细的趋势,岸滩表现出典型的离岸输沙断面的特征,波浪是塑造岸滩剖面的主要动力因素。受N向系波浪的影响,九龙湾沿岸输沙指向SE方向。Abstract: Supported by the data of surface sediment grain size, beach profiles and topographic surveys in different periods, we studied the surface sediment distribution pattern, beach profiles and water depth changes in the Jiulong Bay. The alongshore silt discharge rate of the study area was calculated, and the relationship between the hydrodynamic environment and sediment transport trend studied. The result shows that, the grain size of surface sediment is getting smaller from the coast to the offshore, the beach belongs to the typical offshore sediment transporting type and the wave is the main factor shaping the beach profile. Being influenced by the wave from north, the alongshore silt discharge moves southeastward.
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Key words:
- Jiulong Bay /
- surface sediment /
- sediment transport /
- hydrodynamic environment
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