GSTDTAP  > 气候变化
DOI10.1029/2020GL092237
Mesospheric Q2DW interactions with four migrating tides at 53N latitude: zonal wavenumber identification through dual‐station approaches
Maosheng He; Jeffrey M. Forbes; Guozhu Li; Christoph Jacobi; Peter Hoffmann
2021-02-24
发表期刊Geophysical Research Letters
出版年2021
英文摘要

Mesospheric winds from two longitudinal sectors at 53N latitude are combined to investigate quasi‐two‐days waves (Q2DWs) and their nonlinear interactions with tides. In a summer 2019 case study, we diagnose the zonal wavenumber m of spectral peaks at expected frequencies through two dual‐station approaches, a phase differencing technique (PDT) on individual spectral peaks and a least‐squares procedure on family‐batched peaks. Consistent results from the approaches verify the occurrences of Rossby‐gravity modes (m=3 and 4 at periods T=2.1d and 1.7d), and their secondary waves (SWs) generated from interactions with diurnal, semi‐diurnal, ter‐diurnal and quatra‐diurnal migrating tides. We further extend the PDT to 2012–2019, illustrating that Q2DWs exhibit significant interannual variability. Composite analysis reveals seasonal and altitude variations of the Rossby‐gravity modes and their SWs. The Rossby‐gravity modes maximize in local summer, whereas their 16hr and 9.6hr SWs appear more in winter.

领域气候变化
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文献类型期刊论文
条目标识符http://119.78.100.173/C666/handle/2XK7JSWQ/315835
专题气候变化
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Maosheng He,Jeffrey M. Forbes,Guozhu Li,等. Mesospheric Q2DW interactions with four migrating tides at 53N latitude: zonal wavenumber identification through dual‐station approaches[J]. Geophysical Research Letters,2021.
APA Maosheng He,Jeffrey M. Forbes,Guozhu Li,Christoph Jacobi,&Peter Hoffmann.(2021).Mesospheric Q2DW interactions with four migrating tides at 53N latitude: zonal wavenumber identification through dual‐station approaches.Geophysical Research Letters.
MLA Maosheng He,et al."Mesospheric Q2DW interactions with four migrating tides at 53N latitude: zonal wavenumber identification through dual‐station approaches".Geophysical Research Letters (2021).
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