莱州湾西部海域表层沉积物运移趋势

详细信息

收稿日期: 2016-05-17

SEDIMENT TRANSPORT TRENDS IN WESTERN AREA OF LAIZHOU BAY

Received Date: 17 May 2016

摘要: 根据2007、2014和2015年莱州湾西部海域238个表层沉积物取样和分析资料,利用二维粒径趋势分析方法(GSTA)分析了研究区海域表层沉积物的运移趋势,并探讨了潮流和波浪对海底泥沙起动的影响。结果表明,研究区内分为多个沉积中心和侵蚀中心;单纯潮流作用能起动大部分表层沉积物,不能起动的区域主要集中在废弃黄河口西南侧近岸海域以及潍坊港东北侧海域;波浪作用下泥沙强烈活动水深范围广泛。
- 莱州湾西部 /
- 表层沉积物 /
- 运移趋势
Abstract: Based on the 238 surface sediment samples taken from the Laizhou Bay in the years of 2007, 2014 and 2015 as well as their analysis results, the authors studied the migration trend of the surface sediments in the bay. Also discussed is the influence of tide and wave on the movement of seabed sediment with the method of two-dimensional grain size trend analysis (GSTA). Results show that the study area may be divided into several depositional and erosional centers. The tide along is effective enough to move the most of surface sediments, except in the area near the inshore waters on the southwest side of the abandoned Yellow River estuary and the northeast waters of the Weifang port. The area strongly effected by wave is very wide.
- western area of Laizhou Bay /
- surficial sediment /
- trend analysis