气候变化领域集成服务门户(CCPortal): Annual Mean Arctic Amplification 1970-2020: Observed and Simulated by CMIP6 Climate Models

CCPortal

DOI	10.1029/2022GL099371
	Annual Mean Arctic Amplification 1970-2020: Observed and Simulated by CMIP6 Climate Models
	Chylek, Petr; Folland, Chris; Klett, James D.; Wang, Muyin; Hengartner, Nick; Lesins, Glen; Dubey, Manvendra K.
发表日期	2022
ISSN	0094-8276
EISSN	1944-8007
卷号	49 期号:13
英文摘要	While the annual mean Arctic Amplification (AA) index varied between two and three during the 1970-2000 period, it reached values exceeding four during the first two decades of the 21st century. The AA did not change in a continuous fashion but rather in two sharp increases around 1986 and 1999. During those steps the mean global surface air temperature trend remained almost constant, while the Arctic trend increased. Although the best CMIP6 models reproduce the increasing trend of the AA in 1980s they do not capture the sharply increasing trend of the AA after 1999 including its rapid step-like increase. We propose that the first sharp AA increase around 1986 is due to external forcing, while the second step close to 1999 is due to internal climate variability, which models cannot reproduce in the observed time.
英文关键词	Arctic Amplification; climate models; Arctic climate; CMIP6; climate change; Arctic
语种	英语
WOS研究方向	Geosciences, Multidisciplinary
WOS类目	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000822804600001
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/280418
作者单位	University of East Anglia; University of Gothenburg; University of Southern Queensland; University of Washington; University of Washington Seattle; National Oceanic Atmospheric Admin (NOAA) - USA; United States Department of Energy (DOE); Los Alamos National Laboratory; Dalhousie University
推荐引用方式 GB/T 7714	Chylek, Petr,Folland, Chris,Klett, James D.,et al. Annual Mean Arctic Amplification 1970-2020: Observed and Simulated by CMIP6 Climate Models[J],2022,49(13).
APA	Chylek, Petr.,Folland, Chris.,Klett, James D..,Wang, Muyin.,Hengartner, Nick.,...&Dubey, Manvendra K..(2022).Annual Mean Arctic Amplification 1970-2020: Observed and Simulated by CMIP6 Climate Models.GEOPHYSICAL RESEARCH LETTERS,49(13).
MLA	Chylek, Petr,et al."Annual Mean Arctic Amplification 1970-2020: Observed and Simulated by CMIP6 Climate Models".GEOPHYSICAL RESEARCH LETTERS 49.13(2022).