黄河三角洲飞雁滩海岸的侵蚀与机理(英文)

• 作 者: 陈沈良 张国安 陈小英
• 机 构: 华东师范大学河口海岸学国家重点实验室,华东师范大学河口海岸学国家重点实验室,华东师范大学河口海岸学国家重点实验室 上海200062,上海200062,上海200062
• 出 处: Marine Science Bulletin
• 发表日期: 2006年01期
• 关键词: 海岸侵蚀 雁滩 黄河三角洲 余流 erosion 地形特征 currents tidal breaking coastal

飞雁滩海域是1964—1976 年黄河刁口河流路入海区域。根据地形和断面水深监测资料,阐述了该岸段流路废弃后的岸滩侵蚀特征和地貌变化。研究结果表明,刁口河流路废弃后飞雁滩海岸向海凸出的地形特征,是造成该岸段强烈侵蚀的重要原因。进一步结合波、流动力的对应分析认为,波浪以掀沙为主,潮流以输沙为主,波浪和潮流的联合作用是飞雁滩海岸侵蚀的主要动力机制,其中潮流主要通过余流携沙外输,造成近岸泥沙亏损。

Feiyan beach area is 1964-1976 Diaokou River Road into the sea area. According to the terrain and the monitoring data of the depth of the section, the characteristics of the beach erosion and the change of the landform after the passage of this section of the bank are expounded. The results show that the topography of the Feiyao River coast protruding to the sea after the Diaokou River Road is abandoned is an important reason for the strong erosion of the shore section. Combining with the analysis of wave and flow, we can see that the wave is dominated by flip-flop and the tide is dominated by sediment transport. The combined action of wave and tide is the main driving force of coastal erosion of Feiyan beach, Outer transport, resulting in coastal sediment loss.