气候变化领域集成服务门户(CCPortal): Modeling a Large Coastal Upwelling Event in Lake Superior

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DOI	10.1029/2020JC016512
	Modeling a Large Coastal Upwelling Event in Lake Superior
	Li Y.; Beletsky D.; Wang J.; Austin J.; Kessler J.; Fujisaki-Manome A.; Bai P.
发表日期	2021
ISSN	21699275
卷号	126 期号:5
英文摘要	An extraordinary strong wind-driven upwelling event occurred in Lake Superior in summer of 2010 when the lake was strongly stratified. In this paper, a detailed three-dimensional (3-D) investigation of the current and thermal structures during the upwelling event was conducted using in situ observations, remote sensing products, and the results of a long-term numerical simulation. A 3-D finite-volume coupled ice–ocean model tailored for the Laurentian Great Lakes was employed for this purpose. The model was validated with temperature observations at National Oceanic and Atmospheric Administration buoys and mooring data from 2010. The upwelling event observed in satellite imagery and at a mooring station was reproduced by the model, showing a cooling of as much as 10°C in August 2010 along the northwestern coast. The relationship between the alongshore wind and the offshore thermocline displacement (upwelling front) derived in theoretical work (Csanady, 1977, https://doi.org/10.1029/JC082i003p00397) was used to calculate upwelling front movement offshore and found to be in in close agreement with model prediction. A significant correlation between alongshore wind stress and lake temperature change in the upwelling zone was found with a correlation coefficient of −0.87. A simple linear heat balance model explained most of variability in temperature. © 2021. American Geophysical Union. All Rights Reserved.
英文关键词	alongshore wind stress; Lake Superior; offshore thermocline displacement; upwelling
语种	英语
来源期刊	Journal of Geophysical Research: Oceans
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/186348
作者单位	North China Sea Marine Forecasting Center, Oceanic Administration of China, Qingdao, China; Shandong Provincial Key Laboratory of Marine Ecological Environment and Disaster Prevention and Mitigation, Qingdao, China; Cooperative Institute for Great Lakes Research, University of Michigan, Ann Arbor, MI, United States; Great Lakes Environmental Research Laboratory, Office of Oceanic and Atmospheric Research, National Oceanic and Atmospheric Administration, Ann Arbor, MI, United States; Large Lakes Observatory and Department of Physics and Astronomy, University of Minnesota-Duluth, Duluth, MN, United States; Climate & Space Sciences and Engineering, University of Michigan, Ann Arbor, MI, United States
推荐引用方式 GB/T 7714	Li Y.,Beletsky D.,Wang J.,et al. Modeling a Large Coastal Upwelling Event in Lake Superior[J],2021,126(5).
APA	Li Y..,Beletsky D..,Wang J..,Austin J..,Kessler J..,...&Bai P..(2021).Modeling a Large Coastal Upwelling Event in Lake Superior.Journal of Geophysical Research: Oceans,126(5).
MLA	Li Y.,et al."Modeling a Large Coastal Upwelling Event in Lake Superior".Journal of Geophysical Research: Oceans 126.5(2021).