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Seasonal dynamics of water circulation and exchange flows in a shallow lagoon-inlet-coastal ocean system

文献类型：期刊论文

作者Mao, Miaohua1,2,3; Xia, Meng3
刊名OCEAN MODELLING
出版日期2023-12-01
卷号186页码:21
关键词Seasonal dynamics Shallow lagoonal system Winds Tides Numerical modeling
ISSN号1463-5003
DOI10.1016/j.ocemod.2023.102276
通讯作者Xia, Meng(mxia@umes.edu)
英文摘要A wave-current coupled, unstructured-grid, three-dimensional hydrodynamic model was applied to investigate the seasonal dynamics of the Maryland Coastal Bays system. The model's performance was validated successfully against hydrodynamic observations from the spring to fall of 2014, and the driving forces of water circulation and exchange flows were discussed. Results indicate that seasonal dynamics are primarily controlled by tides, modulated by winds, waves, and density variations, and regulated by the inlet orientation and geometry. Seasonal circulation in the surface layer is stronger than that near the bottom. The strong coastal circulation, net outflows via inlets, and the clockwise movements in the southern Isle of Wight Bay are primarily controlled by tides. The directional alignment between winds and the bay's principal axis and inlet orientation are key to the seasonal circulation and exchange flows in Sinepuxent Bay and via inlets. Wave-induced effects are comparable to tides in particular regions (e.g., reaching 30 cm/s in Isle of Wight Bay), and much larger than those caused by density variations overall. Additional numerical experiments indicate that spatial variations in salinity are mainly responsible for the density-induced circulation (e.g., 6 cm/s at the mouth of Newport River in Newport Bay). Further analysis indicates that the net exchange flows vary from the surface to bottom layers (e.g., different magnitudes or transporting directions) both in the lagoon and via the paired inlets. This work is beneficial to coastal communities and numerical modelers in understanding the dynamics of shallow lagoon-inlet-coastal ocean systems at a seasonal timescale.
WOS关键词WAVE-CURRENT INTERACTIONS ; BACK-BARRIER ESTUARY ; SOUTH-WEST LAGOON ; 3-DIMENSIONAL CURRENT ; SEDIMENT TRANSPORT ; TIME ; BAY ; VARIABILITY ; HYDRODYNAMICS ; PATTERNS
WOS研究方向Meteorology & Atmospheric Sciences ; Oceanography
语种英语
WOS记录号WOS:001155337800001
资助机构National Science Foundation (NSF) ; NCAR's Computational and Information Systems Laboratory - National Science Foundation
源URL[http://ir.yic.ac.cn/handle/133337/36362]  
专题烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室
烟台海岸带研究所_近岸生态与环境实验室
通讯作者Xia, Meng
作者单位1.Chinese Acad Sci, Yantai Inst Coastal Zone Res, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Shandong, Peoples R China
2.Shandong Key Lab Coastal Environm Proc, Yantai 264003, Shandong, Peoples R China
3.Univ Maryland Eastern Shore, Dept Nat Sci, Princess Anne, MD 21853 USA
推荐引用方式
GB/T 7714		 Mao, Miaohua,Xia, Meng. Seasonal dynamics of water circulation and exchange flows in a shallow lagoon-inlet-coastal ocean system[J]. OCEAN MODELLING,2023,186:21.
APA Mao, Miaohua,&Xia, Meng.(2023).Seasonal dynamics of water circulation and exchange flows in a shallow lagoon-inlet-coastal ocean system.OCEAN MODELLING,186,21.
MLA Mao, Miaohua,et al."Seasonal dynamics of water circulation and exchange flows in a shallow lagoon-inlet-coastal ocean system".OCEAN MODELLING 186(2023):21.

入库方式： OAI收割

来源：烟台海岸带研究所

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