气候变化领域集成服务门户(CCPortal): Pacific Modulation of the North Atlantic Storm Track Response to Sudden Stratospheric Warming Events

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DOI	10.1029/2019GL085007
	Pacific Modulation of the North Atlantic Storm Track Response to Sudden Stratospheric Warming Events
	Afargan-Gerstman H.; Domeisen D.I.V.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:2
英文摘要	Sudden stratospheric warming (SSW) events have been suggested to be followed by a surface impact, though this response varies between events. Using reanalysis data, we identify two types of tropospheric responses to SSWs: Two thirds of the SSW events are dominated by a zonally symmetric tropospheric response with an equatorward shift of the jet in the Atlantic, consistent with the canonical SSW response in the form of a negative signature of the North Atlantic Oscillation. For the remaining third of SSW events, a zonally asymmetric response is found, associated with a poleward shift of the jet in the Atlantic. The Pacific is found to contribute to the sign of the North Atlantic response, as synoptic wave propagation from the Eastern Pacific links the Pacific and Atlantic storm tracks for both equatorward and poleward jet responses. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Atmospheric pressure; Kinetic energy; Kinetics; Troposphere; Wave propagation; Asymmetric response; downward impact; Eddy kinetic energy; Equatorward shift; North Atlantic oscillations; Storm track; Stratospheric warmings; Sudden stratospheric warming; Storms; eddy covariance; global warming; kinetic energy; storm track; stratosphere; troposphere; wave propagation; Atlantic Ocean; Atlantic Ocean (North); Pacific Ocean; Pacific Ocean (East)
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/170835
作者单位	Institute for Atmospheric and Climate Science, ETH Zurich, Zurich, Switzerland
推荐引用方式 GB/T 7714	Afargan-Gerstman H.,Domeisen D.I.V.. Pacific Modulation of the North Atlantic Storm Track Response to Sudden Stratospheric Warming Events[J],2020,47(2).
APA	Afargan-Gerstman H.,&Domeisen D.I.V..(2020).Pacific Modulation of the North Atlantic Storm Track Response to Sudden Stratospheric Warming Events.Geophysical Research Letters,47(2).
MLA	Afargan-Gerstman H.,et al."Pacific Modulation of the North Atlantic Storm Track Response to Sudden Stratospheric Warming Events".Geophysical Research Letters 47.2(2020).