气候变化领域集成服务门户(CCPortal): The Roles of the Atmosphere and Ocean in Driving Arctic Warming Due to European Aerosol Reductions

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DOI	10.1029/2019GL086681
	The Roles of the Atmosphere and Ocean in Driving Arctic Warming Due to European Aerosol Reductions
	Krishnan S.; Ekman A.M.L.; Hansson H.-C.; Riipinen I.; Lewinschal A.; Wilcox L.J.; Dallafior T.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:7
英文摘要	Clean air policies can have significant impacts on climate in remote regions. Previous modeling studies have shown that the temperature response to European sulfate aerosol reductions is largest in the Arctic. Here we investigate the atmospheric and ocean roles in driving this enhanced Arctic warming using a set of fully coupled and slab-ocean simulations (specified ocean heat convergence fluxes) with the Norwegian Earth system model (NorESM), under scenarios with high and low European aerosol emissions relative to year 2000. We show that atmospheric processes drive most of the Arctic response. The ocean pathway plays a secondary role inducing small temperature changes mostly in the opposite direction of the atmospheric response. Important modulators of the temperature response patterns are changes in sea ice extent and subsequent turbulent heat flux exchange, suggesting that a proper representation of Arctic sea ice and turbulent changes is key to predicting the Arctic response to midlatitude aerosol forcing. © 2020. The Authors.
英文关键词	Aerosols; Atmospheric thermodynamics; Heat flux; Oceanography; Sea ice; Sulfur compounds; Aerosol emissions; Atmospheric process; Atmospheric response; Earth system model; Sulfate aerosols; Temperature changes; Temperature response; Turbulent heat fluxes; Atmospheric temperature; aerosol; atmospheric modeling; convergence; heat flux; sea ice; simulation; sulfate; turbulent boundary layer; Arctic
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/170488
作者单位	Department of Meteorology, Stockholm University, Stockholm, Sweden; Bolin Centre for Climate Research, Stockholm University, Stockholm, Sweden; Department of Environmental Science and Analytical Chemistry (ACES), Stockholm University, Stockholm, Sweden; National Centre for Atmospheric Science, Department of Meteorology, University of Reading, Reading, United Kingdom; Now at: RMS Risk Management Solutions Inc., London, United Kingdom
推荐引用方式 GB/T 7714	Krishnan S.,Ekman A.M.L.,Hansson H.-C.,et al. The Roles of the Atmosphere and Ocean in Driving Arctic Warming Due to European Aerosol Reductions[J],2020,47(7).
APA	Krishnan S..,Ekman A.M.L..,Hansson H.-C..,Riipinen I..,Lewinschal A..,...&Dallafior T..(2020).The Roles of the Atmosphere and Ocean in Driving Arctic Warming Due to European Aerosol Reductions.Geophysical Research Letters,47(7).
MLA	Krishnan S.,et al."The Roles of the Atmosphere and Ocean in Driving Arctic Warming Due to European Aerosol Reductions".Geophysical Research Letters 47.7(2020).