摘要
基于茂名港实测的潮流和泥沙等资料,给出了现场观测点的垂线平均流速、流向及垂线平均含沙量等特征,同时计算了余流的大小和方向、流量与输沙量,进而绘制了流场分布图、余流矢量图、输沙方向图等,并对该区域的流场和输沙时空变化的基本特征等进行了初步分析,得出如下结论:(1)茂名港区的余流大致沿海岸由北向南流,余流流速值由北向南递减,且离岸较远处的余流要比近岸处的大;(2)进入博贺港区的泥沙量大于输出量,由此将导致博贺港港区的淤积,但3#测线附近有冲刷现象,1#测线附近输沙受到径流输沙的影响。
Based on in situ observational data of currents and sediments around the Maoming Harbor, the vertically averaged current velocities and directions, and averaged sediment concentrations at each observational site are presented, and the residual current and its direction, the unit-width flux and its sediment discharge are calculated. The spatial and temporal distribution characteristics of the current, residual current and sediment transport in this area are analyzed. The results suggest that the residual current tends to flow from north to south along the shore, and the Maoming Harbor will be filled up gradually.
出处
《热带海洋学报》
CAS
CSCD
北大核心
2008年第6期40-43,共4页
Journal of Tropical Oceanography
基金
中国科学院知识创新工程项目(KZCX2-YW-201)
国家863计划项目(2006AA09A109)
关键词
茂名港
潮流
余流
泥沙
Maoming Harbor
tidal current
residual current
sediment
