EGU21-14578
https://doi.org/10.5194/egusphere-egu21-14578
EGU General Assembly 2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Quasi-two-day waves at 53°N latitude

Maosheng He1, Jeffrey, M. Forbes2, Guozhu Li3,4, Christoph Jacobi5, and Peter Hoffmann1
Maosheng He et al.
  • 1Leibniz Institute of Atmospheric Physics, Kühlungsborn, Germany (he@iap-kborn.de)
  • 2Ann and H.J. SmeadDepartment of Aerospace Engineering Sciences, University of Colorado, Boulder, CO, USA,
  • 3Beijing National Observatory of SpaceEnvironment, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China,
  • 4College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing, China,
  • 5Institut fur Meteorologie, Universitat Leipzig, Germany

The quasi-two-day wave (Q2DW) is the strongest and most widely-studied planetary wave occurring in the mesosphere. Existing observational analyses are based on either single-satellite or -station approaches, which suffer from temporal and spatial aliasing, respectively. The current work implements and develops dual-station approaches to investigate the mesospheric Q2DWs  and their nonlinear interactions with tides using winds from two longitudinal sectors at 53°N latitude.  An 8-year composite analysis reveals seasonal and altitude variations of Q2DWs and their secondary waves (SWs) from nonlinear interactions with tides.   The Q2DWs maximize in local summer, whereas their 16hr and 9.6hr SWs appear more in winter.

How to cite: He, M., Forbes, J. M., Li, G., Jacobi, C., and Hoffmann, P.: Quasi-two-day waves at 53°N latitude, EGU General Assembly 2021, online, 19–30 Apr 2021, EGU21-14578, https://doi.org/10.5194/egusphere-egu21-14578, 2021.

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