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  4. 中国科学院地球与行星物理重点实验室
High-Order Solar Migrating Tides Quench at SSW Onsets

文献类型：期刊论文

作者He, Maosheng2; Forbes, Jeffrey M.1; Chau, Jorge2; Li, Guozhu3; Wan, Weixing3; Korotyshkin, Dmitry, V4
刊名GEOPHYSICAL RESEARCH LETTERS
出版日期2020-03-28
卷号47期号:6页码:8
关键词sudden stratospheric warming (SSW) migrating solar tides mesosphere zonal wavenumber
ISSN号0094-8276
DOI10.1029/2019GL086778
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. Plain Language Summary Solar tides are the most predictably occurring waves in the upper atmosphere. Although the dynamical theory can be dated back to Laplace in the sixteenth century, upper atmospheric tides were rarely studied observationally until satellites and ground-based radars became common. To date, observational studies have mainly dealt with low-order solar-day harmonics. Here, we combine mesospheric wind observations from three longitudinal sectors to investigate high-order harmonics. Results illustrate that the first six harmonics appear in early 2018, all of which are dominated by Sun-synchronous components. Among these harmonics, the fourth, fifth, and sixth quench at the sudden stratospheric warming onset, which we attribute to variations in the background zonal wind.
WOS关键词SEMIDIURNAL TIDES ; TIDAL VARIABILITY ; PLANETARY-WAVES ; METEOR RADARS ; MESOSPHERE ; LUNAR ; MLT ; THERMOSPHERE ; TEMPERATURE ; IONOSPHERE
资助项目Deutsche Forschungsgemeinschaft (DFG, German Research Foundation)[SPP 1788] ; Deutsche Forschungsgemeinschaft (DFG, German Research Foundation)[CH1482/1-2] ; NSF[AGS-1630177] ; RFBR[18-505-12048]
WOS研究方向Geology
语种英语
WOS记录号WOS:000529097700024
出版者AMER GEOPHYSICAL UNION
资助机构Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) ; Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) ; NSF ; NSF ; RFBR ; RFBR ; Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) ; Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) ; NSF ; NSF ; RFBR ; RFBR ; Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) ; Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) ; NSF ; NSF ; RFBR ; RFBR ; Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) ; Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) ; NSF ; NSF ; RFBR ; RFBR
源URL[http://ir.iggcas.ac.cn/handle/132A11/96247]  
专题地质与地球物理研究所_中国科学院地球与行星物理重点实验室
通讯作者He, Maosheng
作者单位1.Univ Colorado, Ann & HJ Smead Dept Aerosp & Leering Sci, Boulder, CO 80309 USA
2.Rostock Univ, Leibniz Inst Atmospher Phys, Kuhlungsborn, Germany
3.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing, Peoples R China
4.Kazan Fed Univ, Kazan, Russia
推荐引用方式
GB/T 7714		 He, Maosheng,Forbes, Jeffrey M.,Chau, Jorge,et al. High-Order Solar Migrating Tides Quench at SSW Onsets[J]. GEOPHYSICAL RESEARCH LETTERS,2020,47(6):8.
APA He, Maosheng,Forbes, Jeffrey M.,Chau, Jorge,Li, Guozhu,Wan, Weixing,&Korotyshkin, Dmitry, V.(2020).High-Order Solar Migrating Tides Quench at SSW Onsets.GEOPHYSICAL RESEARCH LETTERS,47(6),8.
MLA He, Maosheng,et al."High-Order Solar Migrating Tides Quench at SSW Onsets".GEOPHYSICAL RESEARCH LETTERS 47.6(2020):8.

入库方式： OAI收割

来源：地质与地球物理研究所

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