Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics
ACP
Articles | Volume 26, issue 20
Articles | Volume 26, issue 20
https://doi.org/10.5194/acp-26-14905-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-26-14905-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 26, issue 20
Research article
 | 
23 Oct 2026
Research article |  | 23 Oct 2026

Simultaneous ground-based observations of a large quasi 26 d wave from three different measurement sites in northern mid-latitudes

Christoph Kalicinsky, Sandra Wallis, Lukas Depenthal, Christoph G. Hoffmann, Anna Lange, and Christian von Savigny

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Short summary
We present simultaneous observations of a planetary 26-day wave in mesospheric temperature observed by three different ground-based mid-latitude OH spectrometers at stations in Germany in boreal winter 2016/2017. With supporting information from satellite measurements the event can be linked to a Rossby wave (1,4) mode. The periodic changes are also seen in other atmospheric parameters such as atomic oxygen further illustrating the importance of such events for the atmospheric state.
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