Dynamics of surface currents over Qingdao coastal waters in August 2008

doi:10.1029/2011JC006954

	Dynamics of surface currents over Qingdao coastal waters in August 2008
	Zhao, Jian 1,3; Chen, Xueen 1; Hu, Wei 2; Chen, Jinrui 1; Guo, Mingke 2
刊名	JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
	2011-10-15
卷号	116
ISSN号	0148-0227
DOI	10.1029/2011JC006954
英文摘要	Surface currents measured by High Frequency (HF) radar are used to investigate the dynamics in the coastal waters of Qingdao, China, on the western coast of the Yellow Sea. Different factors affecting the surface currents are revealed by dynamical analysis. Harmonic tidal analysis shows that the coastal tidal currents are barotropic and their temporal evolution is mainly influenced by the semidiurnal tidal constitutes, topography and geometry. It is also found that their horizontal distribution represents the effect of local topography. At sub-tidal frequencies, the high correlation between winds and the sub-tidal surface currents indicates a crucial role of wind-forcing in driving the currents. Varying wind direction coupled with small-scale features of the coastal geometry results in complicated sub-mesoscale circulation. In addition, the monthly coastal circulation is characterized by an eddy structure and is primarily determined by the outflow which is closely associated with the sea level slope along the coast. The variability of the residual currents is studied by analyzing the cross-shore momentum equation with wind stress, sea level records, and HF radar currents. It is shown that both the barotropic pressure gradient and the nonlinear tidal stress contribute to the variations of the residual currents near the bay mouth and further govern the coastal monthly circulation in August, 2008.
资助项目	National Department Public Benefit Research Foundation[200805006]
WOS关键词	HF RADAR ; YELLOW SEA ; CIRCULATION ; STRATIFICATION ; ESTUARY ; MODEL ; TIDE ; FLUX ; BAY
WOS研究方向	Oceanography
语种	英语
出版者	AMER GEOPHYSICAL UNION
WOS记录号	WOS:000295987800003
内容类型	期刊论文
源URL	[http://ir.fio.com.cn:8080/handle/2SI8HI0U/25094]
专题	自然资源部第一海洋研究所
通讯作者	Chen, Xueen
作者单位	1.Ocean Univ China, Coll Phys & Environm Oceanog, Qingdao 266100, Peoples R China 2.State Ocean Adm, N China Sea Marine Forecasting Ctr, Qingdao 266033, Peoples R China 3.Univ Miami, Rosenstiel Sch Marine & Atmospher Sci, Div Meteorol & Phys Oceanog, Miami, FL 33149 USA
推荐引用方式 GB/T 7714	Zhao, Jian,Chen, Xueen,Hu, Wei,et al. Dynamics of surface currents over Qingdao coastal waters in August 2008[J]. JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,2011,116.
APA	Zhao, Jian,Chen, Xueen,Hu, Wei,Chen, Jinrui,&Guo, Mingke.(2011).Dynamics of surface currents over Qingdao coastal waters in August 2008.JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,116.
MLA	Zhao, Jian,et al."Dynamics of surface currents over Qingdao coastal waters in August 2008".JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS 116(2011).