南黄海辐射沙脊群悬沙总体输运特征分析  

Feature analysis of whole suspended sediment transport on radial sand ridges of south Yellow Sea

作　　者：陈斌[1] 王义刚[1] 黄惠明[1] 孙继斌[1] 

机构地区：[1]河海大学海岸灾害及防护教育部重点实验室,江苏南京210098

出　　处：《海洋通报》2015年第3期310-315,共6页Marine Science Bulletin

基　　金：国家科技支撑计划(2012BAB03B01);江苏省自然科学基金青年基金(BK2012411)

摘　　要：利用2006年夏季江苏近海调查中流速流向以及含沙量资料,采用通量机制分解法,重点计算了南黄海辐射沙脊群地区悬沙输移总量以及各个分量,并对总体悬沙输运特点进行分析。辐射沙脊群地区悬沙输运受到潮汐系统影响,近岸有很强的向岸输沙,且呈现从近岸向外逐渐减小的趋势。在辐射沙脊群区域,悬沙浓度大,地形复杂,悬沙输移也较强较复杂。悬沙输运主要以平流输移为主,其他项贡献很小,其中潮汐捕获项与垂向净环流项表现出与潮汐系统特点相关的辐聚辐散现象。Based on the data of flow velocity, flow direction and sediment concentration in the Jiangsu coastal survey during the summer of 2006, the total suspended sediment transport on radial sand ridges of south Yellow Sea and its components are emphatically calculated by using mechanism decompositionmethod. The suspended sediment transport of radial sand ridges is affected by tidal system, and it has strong transport to the shore and decreases from the shore to the ocean. The district of radial sand ridges has high consistence of suspended sediments and complextopography and therefore the suspended sediment transport is also complex. The suspended sediment transport is mainly decided by the advection transport, and the other types of transports contribute little to the whole transport. The transports by tidal catching and vertical circulation all display the phenomenon related to the tidal system.

关 键 词：辐射沙脊群 悬沙输运 机制分解法 特征分析 

分 类 号：P736.22[天文地球—海洋地质]