Monthly and Episodic Dynamics of Summer Circulation in Lake Michigan

doi:10.1029/2019JC015932

CORC > 烟台海岸带研究所 > 中国科学院烟台海岸带研究所 > 中科院海岸带环境过程与生态修复重点实验室 > 近岸生态与环境实验室

	Monthly and Episodic Dynamics of Summer Circulation in Lake Michigan
	Mao, Miaohua 1; Xia, Meng 2
刊名	JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
	2020-06
卷号	125 期号:6 页码:e2019JC015932
关键词	summer circulation numerical modeling wind wave baroclinic dynamics
ISSN号	2169-9275
DOI	10.1029/2019JC015932
英文摘要	A comprehensive understanding of lake circulation is fundamental to inform better management of ecological issues and fishery resources in the Great Lakes. In this study, a high-resolution, wave-current coupled, three-dimensional modeling system was applied to investigate the monthly and episodic dynamics of summer circulation in Lake Michigan. Model sensitivities to three wind sources and two grid resolutions against observed current velocities, water temperatures, and significant wave heights in the summer of 2014 were examined. Model performance was validated with additional satellite imageries and current measurements in the summer of 2015. Results indicated that the high-resolution model driven by the observation-based winds reproduced lake dynamics most reasonably. In July 2014, a pair of monthly averaged anticyclonic (i.e., clockwise) gyres in the surface layer were simulated in southern Lake Michigan. Analysis indicates that they originate from the wind-driven, upwelling-favorable, jet-like Ekman currents along the west shore, which are connected by the density-driven basin-scale circulation. Although river inputs, strait exchanges, waves, grid resolutions, and bathymetric variations influence the monthly surface circulation, their effects are less important than the wind and density-driven currents. Additional simulations support the predominant impacts of wind and density-driven currents on lake surface circulation during a strong wind event. Further investigations suggest that lake circulation varies from surface to bottom layers, and this knowledge is significant to the related ecological issues and fishery resources management. The numerical model configured to Lake Michigan is beneficial to understanding dynamics in the Great Lakes system and other large water bodies.
WOS关键词	WIND-DRIVEN CIRCULATION ; INVASIVE QUAGGA MUSSELS ; THERMAL STRUCTURE ; GREAT-LAKES ; NUMERICAL-SIMULATION ; BOUNDARY-LAYER ; PART I ; MODEL ; COASTAL ; PATTERNS
WOS研究方向	Oceanography
语种	英语
WOS记录号	WOS:000549832900031
资助机构	National Science FoundationNational Science Foundation (NSF) [1238044] ; NOAA GLERLNational Oceanic Atmospheric Admin (NOAA) - USA
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/30473]
专题	烟台海岸带研究所_近岸生态与环境实验室
作者单位	1.Chinese Acad Sci, Yantai Inst Coastal Zone Res, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Yantai, Shandong, Peoples R China; 2.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. Monthly and Episodic Dynamics of Summer Circulation in Lake Michigan[J]. JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,2020,125(6):e2019JC015932.
APA	Mao, Miaohua,&Xia, Meng.(2020).Monthly and Episodic Dynamics of Summer Circulation in Lake Michigan.JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,125(6),e2019JC015932.
MLA	Mao, Miaohua,et al."Monthly and Episodic Dynamics of Summer Circulation in Lake Michigan".JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS 125.6(2020):e2019JC015932.