气候变化领域集成服务门户(CCPortal): Spatially variable warming of the Laurentian Great Lakes: an interaction of bathymetry and climate

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DOI	10.1007/s00382-018-4481-z
	Spatially variable warming of the Laurentian Great Lakes: an interaction of bathymetry and climate
	Zhong Y.; Notaro M.; Vavrus S.J.
发表日期	2019
ISSN	0930-7575
起始页码	5833
结束页码	5848
卷号	52 期号:2020-09-10
英文摘要	Previous research has identified significant and highly variable summertime (July–August–September) warming trends across the Great Lakes, with critical implications for aquatic ecosystems. However, these analyses of long-term warming trends have generally been constrained by the short duration or coarse spatial resolution of available observational datasets. Here, we integrate two existing datasets of Great Lakes surface temperature (LSWT) to evaluate long-term warming trends during 1982–2012 at fine spatial scales and understand the roles of lake bathymetry and climatic factors in regulating the spatially heterogeneous warming rates with the aid of regional climate modeling. Our results show amplified warming in Lake Superior, central-northern Lake Michigan, and central Lake Huron, and muted lake warming elsewhere. This spatial heterogeneity in summertime lake warming is primarily ascribed to the interplay of lake bathymetry and climatological springtime (April–May–June) air temperature. The climatological air temperature strongly influences the relationship between lake warming rates and bathymetry, as the summertime warming rates increase markedly with greater lake depth in the relatively cold environment of Lake Superior but change little in the warmer environment of Lake Ontario. This conditional dependence on background temperature has important implications for understanding and predicting global lake temperature trends. © 2018, Springer-Verlag GmbH Germany, part of Springer Nature.
英文关键词	Climate trends; Great Lakes; Lake surface temperature; Lake warming; Regional climate model; Spatial pattern
语种	英语
scopus关键词	bathymetry; climate change; climate modeling; lake water; regional climate; spatial variation; surface temperature; trend analysis; warming; Canada; Great Lakes [North America]; Laurentian Mountains; Quebec [Canada]
来源期刊	Climate Dynamics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/146333
作者单位	Space Science and Engineering Center, University of Wisconsin-Madison, Madison, WI, United States; Nelson Institute Center for Climatic Research, University of Wisconsin-Madison, Madison, WI, United States
推荐引用方式 GB/T 7714	Zhong Y.,Notaro M.,Vavrus S.J.. Spatially variable warming of the Laurentian Great Lakes: an interaction of bathymetry and climate[J],2019,52(2020-09-10).
APA	Zhong Y.,Notaro M.,&Vavrus S.J..(2019).Spatially variable warming of the Laurentian Great Lakes: an interaction of bathymetry and climate.Climate Dynamics,52(2020-09-10).
MLA	Zhong Y.,et al."Spatially variable warming of the Laurentian Great Lakes: an interaction of bathymetry and climate".Climate Dynamics 52.2020-09-10(2019).