Projected Changes of Water Currents and Circulation in Lake Michigan Under Representative Concentration Pathways Scenarios

doi:10.1029/2020JC016651

YIC-IR

	Projected Changes of Water Currents and Circulation in Lake Michigan Under Representative Concentration Pathways Scenarios
	Sahoo, Bishnupriya 1; Mao, Miaohua1 ; Xia, Meng 2
发表期刊	JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
ISSN	2169-9275
	2021-05-01
卷号	126 期号:5 页码:24
关键词	climatic projection gyre dynamics lake circulation numerical modeling Representative Concentration Pathway
DOI	10.1029/2020JC016651
通讯作者	Mao, Miaohua(mhmao@yic.ac.cn)
英文摘要	The Great Lakes' atmosphere predominantly signposts signatures of climate change in terms of an elongated summer, depletion of ice-cover, and up-surging lake surface temperature and air temperature, which demands an in-depth comprehension of future lake circulation dynamics. After satisfactory validations for the lake meteorology and hydrodynamics during 2010-2019, historical and future predictions based on a downscaled climate model for the Great Lakes region under Representative Concentration Pathways (RCP) 4.5 and 8.5 scenarios are used to drive the Finite-Volume Community Ocean Model applied to Lake Michigan during the ice-free months of 2010-2069. Substantial rises in lake surface current speed during May-June and September-October are connected to the rising wind speed and air temperature in the lake domain. Under the RCP 4.5 scenario, the study expects a 6.5% per decade relative increase in surface current speed, with a rise of 1.3% in the coastal circulation (within 50-m depth from the coast) until 2050. Surface circulation strength can reach the highest rise (13%) during 2030-2039 and a slight drop (-1%) during 2050-2069. During May-December, only a 0.3% variation is predicted in current magnitudes under RCP 4.5 and 8.5 scenarios. The projections anticipate the occurrence of a stronger, wider, and northward shifting lake gyre with changing lake meteorology. Further analysis indicates that the reduced thermal gradient over the lake surface tends to resist sharp modulations in winds and lake dynamics in the successive decades.
资助机构	CAS President's International Fellowship ; National Science Foundation
收录类别	SCI
语种	英语
关键词[WOS]	GREAT-LAKES ; ICE COVER ; THERMAL STRUCTURE ; TEMPERATURE ; MODEL ; OCEAN ; CLIMATE ; SURFACE ; STRATIFICATION ; TRENDS
研究领域[WOS]	Oceanography
WOS记录号	WOS:000654462400006
引用统计	被引频次：3[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.yic.ac.cn/handle/133337/34773
专题	中国科学院烟台海岸带研究所
通讯作者	Mao, Miaohua
作者单位	1.Chinese Acad Sci, Yantai Inst Coastal Zone Res, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Yantai, Peoples R China 2.Univ Maryland Eastern Shore, Dept Nat Sci, Princess Anne, MD USA
推荐引用方式 GB/T 7714	Sahoo, Bishnupriya,Mao, Miaohua,Xia, Meng. Projected Changes of Water Currents and Circulation in Lake Michigan Under Representative Concentration Pathways Scenarios[J]. JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,2021,126(5):24.
APA	Sahoo, Bishnupriya,Mao, Miaohua,&Xia, Meng.(2021).Projected Changes of Water Currents and Circulation in Lake Michigan Under Representative Concentration Pathways Scenarios.JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,126(5),24.
MLA	Sahoo, Bishnupriya,et al."Projected Changes of Water Currents and Circulation in Lake Michigan Under Representative Concentration Pathways Scenarios".JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS 126.5(2021):24.