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DOI	10.1038/s41467-021-21830-z
	Acceleration of western Arctic sea ice loss linked to the Pacific North American pattern
	Liu Z.; Risi C.; Codron F.; He X.; Poulsen C.J.; Wei Z.; Chen D.; Li S.; Bowen G.J.
发表日期	2021
ISSN	2041-1723
卷号	12 期号:1
英文摘要	Recent rapid Arctic sea-ice reduction has been well documented in observations, reconstructions and model simulations. However, the rate of sea ice loss is highly variable in both time and space. The western Arctic has seen the fastest sea-ice decline, with substantial interannual and decadal variability, but the underlying mechanism remains unclear. Here we demonstrate, through both observations and model simulations, that the Pacific North American (PNA) pattern is an important driver of western Arctic sea-ice variability, accounting for more than 25% of the interannual variance. Our results suggest that the recent persistent positive PNA pattern has led to increased heat and moisture fluxes from local processes and from advection of North Pacific airmasses into the western Arctic. These changes have increased lower-tropospheric temperature, humidity and downwelling longwave radiation in the western Arctic, accelerating sea-ice decline. Our results indicate that the PNA pattern is important for projections of Arctic climate changes, and that greenhouse warming and the resultant persistent positive PNA trend is likely to increase Arctic sea-ice loss. © 2021, The Author(s).
语种	英语
scopus关键词	acceleration; advection; air temperature; annual variation; decadal variation; downwelling; greenhouse gas; humidity; longwave radiation; moisture content; sea ice; spatiotemporal analysis; troposphere; acceleration; advection; Arctic; arctic climate; article; greenhouse; heat; humidity; sea ice; simulation; warming; Arctic; Pacific Coast [North America]; Pacific Ocean; Pacific Ocean (North)
来源期刊	Nature Communications
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/251499
作者单位	State Key Laboratory of Marine Geology, Tongji University, Shanghai, China; Laboratoire de Météorologie Dynamique, IPSL, CNRS, Sorbonne Université, Paris, France; Laboratoire d’Océanographie et du Climat (LOCEAN), IPSL, CNRS, IRD, Sorbonne Université, Paris, France; Department of Civil and Environmental Engineering, National University of Singapore, Singapore, Singapore; Department of Earth and Environmental Sciences, University of Michigan, Ann Arbor, MI, United States; Guangdong Province Key Laboratory for Climate Change and Natural Disaster Studies, School of Atmospheric Sciences, Sun Yat-sen University, Guangzhou, China; Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, China; Nansen-Zhu International Research Centre, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China; Department of Earth System Science, Tsinghua University, Beijing, China; Department of Geology and Geophysics, University of Utah, Salt Lake City, United States
推荐引用方式 GB/T 7714	Liu Z.,Risi C.,Codron F.,et al. Acceleration of western Arctic sea ice loss linked to the Pacific North American pattern[J],2021,12(1).
APA	Liu Z..,Risi C..,Codron F..,He X..,Poulsen C.J..,...&Bowen G.J..(2021).Acceleration of western Arctic sea ice loss linked to the Pacific North American pattern.Nature Communications,12(1).
MLA	Liu Z.,et al."Acceleration of western Arctic sea ice loss linked to the Pacific North American pattern".Nature Communications 12.1(2021).