摘要
苏北辐射沙洲海域由10余条主沙脊和10余条主水道组成,其沙脊群间水动力的消长决定了沙洲的生成、发展及消亡,形成了滩槽相间、水道交错的独特地貌。黄海旋转潮波与东海前进潮波交汇于沙洲中心弶港,在沙洲外围诸多流系如黄海沿岸流、苏北沿岸水和长江冲淡水等影响下,又受复杂地形和大气强迫对浅水作用的影响,沙洲间余环流结构呈现4种环流结构迥异的特征。本文利用2006-2012年间8次共23站一年四季、涵盖主要沙脊和水道间准同步调查数据,以及沙洲南部4站长达1个月以上连续观测的ADCP资料,结合吕四和洋口港海洋站气象水文数据,分析了沙洲间余流四季输运分布格局,并重点讨论和分析了沙洲南部余流与风应力的响应关系。
Subei radiation shoals consist of over 10 master sand ridges and 10 main waterways.Hydrodynamics in sand ridges dominates the shoalsbirth,growth,and death,forming the unique landform of intersect tide-flats and grooves.The Yellow Sea rotational ridal wave and the East Sea forward tidal wave meet at Jianggang Port,which lies in the center of the shoals area.Affected by outer flow systems,such as the Yellow Sea coastal current,the Subei coastal current,and the Yangtze River diluted water,and with the effect of complex terrain and atmospheric force on shallow water,the shoals show 4kinds of totally different residual circulation structure within.In this paper,quasi-synchronous survey data of 8times and 23 sites within 2006-2012,which cover major sand ridges and waterways,the ADCP data of 4sites at southern shoals area,continuously observed for more than 1month,and meteorological and hydrological data from Lvsi and YangKou Port marine station were used to analyze the seasonal change of residual current transport and distribution pattern in the shoals area and to focus on the response of the southern shoals areas residuals to wind stress.
出处
《海洋学报》
CAS
CSCD
北大核心
2016年第3期49-59,共11页
基金
海洋公益性行业科研专项经费项目-苏北浅滩"怪潮"灾害监测预警关键技术研究及示范应用(200905014)
关键词
辐射沙洲
苏北沿岸流
大气强迫
余流输运
分布格局
radial sand ridges
Subei coastal current
atmospheric force
residual current transport
distribution pattern
