气候变化领域集成服务门户(CCPortal): High-Order Solar Migrating Tides Quench at SSW Onsets

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DOI	10.1029/2019GL086778
	High-Order Solar Migrating Tides Quench at SSW Onsets
	He M.; Forbes J.M.; Chau J.L.; Li G.; Wan W.; Korotyshkin D.V.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:6
英文摘要	Sudden stratospheric warming events (SSWs) are the most spectacular atmospheric vertical coupling processes, well-known for being associated with diverse wave activities in the upper atmosphere and ionosphere. The first four solar tidal harmonics have been reported as being engaged. Here, combining mesospheric winds detected by three midlatitude radars, we demonstrate at least the first six harmonics that occurred during SSW 2018. Wave number diagnosis demonstrates that all six harmonics are dominated by migrating components. Wavelet analyses reveal that the fourth, fifth, and sixth harmonics quench after the SSW onset. The six harmonics and the quenching appear also in a statistical analysis based on near-12-year observations from one of the radars. We attribute the quenching to reversal of the background eastward wind. ©2020. The Authors.
英文关键词	Ionosphere; Quenching; Radar; Tides; mesosphere; Mesospheric winds; Midlatitudes; Sudden stratospheric warming; Tidal harmonics; Vertical coupling; Wave activity; Zonal wavenumber; Harmonic analysis; global warming; harmonic analysis; ionosphere; mesosphere; midlatitude environment; ocean tide; solar activity; stratosphere; upper atmosphere; wavelet analysis; zonal wind
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/170577
作者单位	Leibniz-Institute of Atmospheric Physics at the Rostock University, Kühlungsborn, Germany; Ann and H.J. Smead Department of Aerospace Engineering Sciences, University of Colorado Boulder, Boulder, CO, United States; Key Laboratory of Earth and Planetary Physics, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China; Kazan Federal University, Kazan, Russian Federation
推荐引用方式 GB/T 7714	He M.,Forbes J.M.,Chau J.L.,et al. High-Order Solar Migrating Tides Quench at SSW Onsets[J],2020,47(6).
APA	He M.,Forbes J.M.,Chau J.L.,Li G.,Wan W.,&Korotyshkin D.V..(2020).High-Order Solar Migrating Tides Quench at SSW Onsets.Geophysical Research Letters,47(6).
MLA	He M.,et al."High-Order Solar Migrating Tides Quench at SSW Onsets".Geophysical Research Letters 47.6(2020).