Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics
ACP
Articles | Volume 25, issue 17
Articles | Volume 25, issue 17
https://doi.org/10.5194/acp-25-9719-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-25-9719-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 25, issue 17
Research article
 | 
03 Sep 2025
Research article |  | 03 Sep 2025

Extreme concentric gravity waves observed in the mesosphere and thermosphere regions over southern Brazil associated with fast-moving severe thunderstorms

Qinzeng Li, Jiyao Xu, Yajun Zhu, Cristiano M. Wrasse, José V. Bageston, Wei Yuan, Xiao Liu, Weijun Liu, Ying Wen, Hui Li, and Zhengkuan Liu

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Short summary
This study explores intense concentric gravity waves (CGWs) based on ground-based and multi-satellite observations over southern Brazil, revealing significant airglow perturbations and strong momentum release. Triggered by deep convection and enabled by weaker wind fields, these CGWs reached the mesopause and thermosphere. Consistent detection via OI and OH airglow emissions confirms their vertical propagation, while asymmetric thermosphere propagation is linked to Doppler-induced wavelength changes.
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