气候变化领域集成服务门户(CCPortal): Decoupling of the Arctic Oscillation and North Atlantic Oscillation in a warmer climate

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DOI	10.1038/s41558-020-00966-8
	Decoupling of the Arctic Oscillation and North Atlantic Oscillation in a warmer climate
	Hamouda M.E.; Pasquero C.; Tziperman E.
发表日期	2021
ISSN	1758-678X
起始页码	137
结束页码	142
卷号	11 期号:2
英文摘要	The North Atlantic Oscillation and the Arctic Oscillation are modes of climate variability affecting temperature and precipitation in the mid-latitudes. Here we use reanalysis data and climate model simulations of historical and warm climates to show that the relationship between the two oscillations changes with climate warming. The two modes are currently highly correlated, as both are strongly influenced by the downward propagation of stratospheric polar vortex anomalies into the troposphere. When considering a very warm climate scenario, the hemispherically defined Arctic Oscillation pattern shifts to reflect variability of the North Pacific storm track, while the regionally defined North Atlantic Oscillation pattern remains stable. The stratosphere remains an important precursor for North Atlantic Oscillation, and surface Eurasian and Aleutian pressure anomalies precede stratospheric anomalies. Idealized general circulation model simulations suggest that these modifications are linked to the stronger warming of the Pacific compared with the slower warming of the Atlantic Ocean. © 2021, The Author(s), under exclusive licence to Springer Nature Limited.
语种	英语
来源期刊	Nature Climate Change
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/171578
作者单位	Department of Earth and Environmental Sciences, Universitá di Milano Bicocca, Milan, Italy; Astronomy and Meteorology Department, Faculty of Science, Cairo University, Cairo, Egypt; Osservatorio Geofisico Sperimentale, Trieste, Italy; Istituto di Scienze dell’Atmosfera e del Clima, Consiglio Nazionale delle Ricerche, Turin, Italy; Department of Earth and Planetary Sciences and School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, United States
推荐引用方式 GB/T 7714	Hamouda M.E.,Pasquero C.,Tziperman E.. Decoupling of the Arctic Oscillation and North Atlantic Oscillation in a warmer climate[J],2021,11(2).
APA	Hamouda M.E.,Pasquero C.,&Tziperman E..(2021).Decoupling of the Arctic Oscillation and North Atlantic Oscillation in a warmer climate.Nature Climate Change,11(2).
MLA	Hamouda M.E.,et al."Decoupling of the Arctic Oscillation and North Atlantic Oscillation in a warmer climate".Nature Climate Change 11.2(2021).