气候变化领域集成服务门户(CCPortal): Eastward-Propagating Planetary Waves Prior to the January 2009 Sudden Stratospheric Warming

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DOI	10.1029/2020JD033696
	Eastward-Propagating Planetary Waves Prior to the January 2009 Sudden Stratospheric Warming
	Rhodes C.T.; Limpasuvan V.; Orsolini Y.J.
发表日期	2021
ISSN	2169897X
卷号	126 期号:11
英文摘要	Eastward-propagating planetary waves (EPWs) were investigated prior to the boreal January 2009 major sudden stratospheric warming (SSW) event simulated by the National Center for Atmospheric Research's Whole Atmosphere Community Climate Model with specified dynamics. About 22 days before SSW onset, a background flow with jet maxima around the upper polar stratosphere and subtropical mesosphere developed due to the net forcing by gravity and planetary waves. The mesospheric wind structure was largely unstable and supported a wave geometry conducive to overreflection. With a zonal phase speed of ∼10 m s−1, EPWs appeared near their turning and critical layers as wavenumber-2 perturbations in the stratosphere and mesosphere. Accompanied by upward EPW activity from the lower stratosphere, EPW growth exhibited characteristics of wave instability and overreflection. © 2021. The Authors.
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/185138
作者单位	School of the Coastal Environment, Coastal Carolina University, Conway, SC, United States; Norwegian Institute for Air Research (NILU), Kjeller, Norway; Department of Physics, Norwegian University of Science and Technology, Trondheim, Norway
推荐引用方式 GB/T 7714	Rhodes C.T.,Limpasuvan V.,Orsolini Y.J.. Eastward-Propagating Planetary Waves Prior to the January 2009 Sudden Stratospheric Warming[J],2021,126(11).
APA	Rhodes C.T.,Limpasuvan V.,&Orsolini Y.J..(2021).Eastward-Propagating Planetary Waves Prior to the January 2009 Sudden Stratospheric Warming.Journal of Geophysical Research: Atmospheres,126(11).
MLA	Rhodes C.T.,et al."Eastward-Propagating Planetary Waves Prior to the January 2009 Sudden Stratospheric Warming".Journal of Geophysical Research: Atmospheres 126.11(2021).