海南东方岸外海底沙波活动性研究

• 作 者: 夏东兴 吴桑云 刘振夏 印萍 亓发庆 叶银灿 谢钦春 陈锡土 来向华 陈小玲
• 机 构: 国家海洋局第一海洋研究所!山东青岛266061,国家海洋局第一海洋研究所!山东青岛266061,国家海洋局第一海洋研究所!山东青岛266061,国家海洋局第一海洋研究所!山东青岛266061,国家海洋
• 出 处: 黄渤海海洋
• 发表日期: 2001年01期
• 关键词: 沙波 对称形 迁移速率 潮流场 落潮流 发育环境 沙脊 动力环境 形态特征 中区

对海南东方岸外 2 0～ 50 m水深海底沙波形成的动力环境、形态特征、剖面结构及其分布特征进行了描述和分析。根据环境参数 ,对其活动性进行了计算 ,并将计算结果与发育环境相类似的 Surtainville沙波进行了类比。认为研究区沙波主要系在潮流作用下形成。研究区沙波迁移速率为每年数米。东区 (水深 2 0～ 40 m)是沙波发育的主体 ,受落潮流作用 ,沙波自北向南迁移 ;西区 (水深 36～ 52 m)沙波受涨潮流控制自南向北迁移 ;中区为过渡区 ,沙波相对稳定

The dynamic environment, morphological characteristics, section structure and distribution of submarine sandwaves formed at the depth of 20 ~ 50 m away from the east coast of Hainan Island are described and analyzed. Based on the environmental parameters, the activity was calculated and the results were compared with Surtainville sand waves with similar developmental environments. It is considered that Shabo in the research area mainly formed under the tidal current. The sand wave migration rate in the study area is several meters per year. In the eastern area (water depth of 20 ~ 40 m) is the main body of sand wave development. Due to the falling tide flow, the sand wave migrates from north to south. In the west (water depth 36-52 m), the sand wave migrates from south to north under the tide of tidal current. For the transition zone, the sand wave is relatively stable