Monthly and episodic dynamics of summer circulation in Lake Michigan | |
Mao, MH1![]() | |
发表期刊 | Journal of Geophysical Research: Oceans
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ISSN | 2169-9275 |
2020-06-18 | |
卷号 | 125期号:6页码:e2019JC015932 |
关键词 | summer circulation numerical modeling wind wave baroclinic dynamics |
研究领域 | Oceanography |
DOI | 10.1029/2019JC015932 |
通讯作者 | Xia, Meng(mxia@umes.edu) |
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. |
文章类型 | Article |
资助机构 | National Science Foundation ; NOAA GLERL |
收录类别 | SCI |
语种 | 英语 |
关键词[WOS] | WIND-DRIVEN CIRCULATION ; INVASIVE QUAGGA MUSSELS ; THERMAL STRUCTURE ; GREAT-LAKES ; NUMERICAL-SIMULATION ; BOUNDARY-LAYER ; PART I ; MODEL ; COASTAL ; PATTERNS |
研究领域[WOS] | Oceanography |
WOS记录号 | WOS:000549832900031 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.yic.ac.cn/handle/133337/25265 |
专题 | 中国科学院海岸带环境过程与生态修复重点实验室_海岸带环境过程实验室 |
通讯作者 | Xia, M |
作者单位 | 1.Chinese Acad Sci, Yantai Inst Coastal Zone Res, CAS Key Lab Coastal Environm Proc & Ecol Remediat 2.Univ Maryland Eastern Shore, Dept Nat Sci, Princess Anne, MD 21853 USA |
推荐引用方式 GB/T 7714 | Mao, MH,Xia, M. Monthly and episodic dynamics of summer circulation in Lake Michigan[J]. Journal of Geophysical Research: Oceans,2020,125(6):e2019JC015932. |
APA | Mao, MH,&Xia, M.(2020).Monthly and episodic dynamics of summer circulation in Lake Michigan.Journal of Geophysical Research: Oceans,125(6),e2019JC015932. |
MLA | Mao, MH,et al."Monthly and episodic dynamics of summer circulation in Lake Michigan".Journal of Geophysical Research: Oceans 125.6(2020):e2019JC015932. |
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