Articles | Volume 24, issue 6
https://doi.org/10.5194/acp-24-3559-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-24-3559-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
21 Mar 2024
Research article |
| 21 Mar 2024
| 21 Mar 2024
Quasi-10 d wave activity in the southern high-latitude mesosphere and lower thermosphere (MLT) region and its relation to large-scale instability and gravity wave drag
Wonseok Lee
Department of Atmospheric Sciences, Yonsei University, Seoul 03722, South Korea
now at: Department of Physics, Catholic University of America, Washington, DC 20064, USA
now at: Heliophysics Science Division, NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA
Department of Atmospheric Sciences, Yonsei University, Seoul 03722, South Korea
Byeong-Gwon Song
Department of Atmospheric Sciences, Yonsei University, Seoul 03722, South Korea
Yong Ha Kim
Department of Astronomy and Space Science, Chungnam National University, Daejeon 34134, South Korea
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Short summary
We investigate the seasonal variation of westward-propagating quasi-10 d wave (Q10DW) activity in the southern high-latitude mesosphere. The observed Q10DW is amplified around equinoxes. The model experiments indicate that the Q10DW can be enhanced in the high-latitude mesosphere due to large-scale instability. However, an excessively strong instability in the summer mesosphere spuriously generates the Q10DW in the model, potentially leading to inaccurate model dynamics.
We investigate the seasonal variation of westward-propagating quasi-10 d wave (Q10DW) activity...
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