气候变化领域集成服务门户(CCPortal): The Remarkably Strong Arctic Stratospheric Polar Vortex of Winter 2020: Links to Record-Breaking Arctic Oscillation and Ozone Loss

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DOI	10.1029/2020JD033271
	The Remarkably Strong Arctic Stratospheric Polar Vortex of Winter 2020: Links to Record-Breaking Arctic Oscillation and Ozone Loss
	Lawrence Z.D.; Perlwitz J.; Butler A.H.; Manney G.L.; Newman P.A.; Lee S.H.; Nash E.R.
发表日期	2020
ISSN	2169897X
卷号	125 期号:22
英文摘要	The Northern Hemisphere (NH) polar winter stratosphere of 2019/2020 featured an exceptionally strong and cold stratospheric polar vortex. Wave activity from the troposphere during December–February was unusually low, which allowed the polar vortex to remain relatively undisturbed. Several transient wave pulses nonetheless served to help create a reflective configuration of the stratospheric circulation by disturbing the vortex in the upper stratosphere. Subsequently, multiple downward wave coupling events took place, which aided in dynamically cooling and strengthening the polar vortex. The persistent strength of the stratospheric polar vortex was accompanied by an unprecedentedly positive phase of the Arctic Oscillation in the troposphere during January–March, which was consistent with large portions of observed surface temperature and precipitation anomalies during the season. Similarly, conditions within the strong polar vortex were ripe for allowing substantial ozone loss: The undisturbed vortex was a strong transport barrier, and temperatures were low enough to form polar stratospheric clouds for over 4 months into late March. Total column ozone amounts in the NH polar cap decreased and were the lowest ever observed in the February–April period. The unique confluence of conditions and multiple broken records makes the 2019/2020 winter and early spring a particularly extreme example of two-way coupling between the troposphere and stratosphere. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Arctic Oscillation; downward wave coupling; planetary waves; stratospheric ozone; stratospheric polar vortex
语种	英语
来源期刊	Journal of Geophysical Research: Atmospheres
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/185657
作者单位	Cooperative Institute for Research in Environmental Sciences (CIRES), University of Colorado Boulder, Boulder, CO, United States; NOAA Physical Sciences Laboratory (PSL), Boulder, CO, United States; NOAA Chemical Sciences Laboratory (CSL), Boulder, CO, United States; NorthWest Research Associates (NWRA), Socorro, NM, United States; Department of Physics, New Mexico Institute of Mining and Technology (NMT), Socorro, NM, United States; Goddard Space Flight Center (GSFC), NASA, Greenbelt, MD, United States; Department of Meteorology, University of Reading, Reading, United Kingdom; Science Systems and Applications, Inc. (SSAI), Lanham, MD, United States
推荐引用方式 GB/T 7714	Lawrence Z.D.,Perlwitz J.,Butler A.H.,et al. The Remarkably Strong Arctic Stratospheric Polar Vortex of Winter 2020: Links to Record-Breaking Arctic Oscillation and Ozone Loss[J],2020,125(22).
APA	Lawrence Z.D..,Perlwitz J..,Butler A.H..,Manney G.L..,Newman P.A..,...&Nash E.R..(2020).The Remarkably Strong Arctic Stratospheric Polar Vortex of Winter 2020: Links to Record-Breaking Arctic Oscillation and Ozone Loss.Journal of Geophysical Research: Atmospheres,125(22).
MLA	Lawrence Z.D.,et al."The Remarkably Strong Arctic Stratospheric Polar Vortex of Winter 2020: Links to Record-Breaking Arctic Oscillation and Ozone Loss".Journal of Geophysical Research: Atmospheres 125.22(2020).