Articles | Volume 18, issue 21
https://doi.org/10.5194/amt-18-6345-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/amt-18-6345-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
10 Nov 2025
Research article |
| 10 Nov 2025
| 10 Nov 2025
A new approach to characterizing medium-scale gravity waves using Antarctic airglow observations
Gabriel Augusto Giongo
CORRESPONDING AUTHOR
Space Weather Division, National Institute for Space Research, São José dos Campos, SP, Brazil
Cristiano Max Wrasse
Space Weather Division, National Institute for Space Research, São José dos Campos, SP, Brazil
Pierre-Dominique Pautet
Physics Department, Utah State University, Logan, UT, USA
José Valentin Bageston
Southern Space Coordination, National Institute for Space Research, Santa Maria, RS, Brazil
Prosper Kwamla Nyassor
Space Weather Division, National Institute for Space Research, São José dos Campos, SP, Brazil
Cosme Alexandre Oliveira Barros Figueiredo
Physics Department, Federal University of Campina Grande, Campina Grande, PB, Brazil
Anderson Vestena Bilibio
Space Weather Division, National Institute for Space Research, São José dos Campos, SP, Brazil
Delano Gobbi
Space Weather Division, National Institute for Space Research, São José dos Campos, SP, Brazil
Hisao Takahashi
Space Weather Division, National Institute for Space Research, São José dos Campos, SP, Brazil
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Long- and short-period oscillations in the lunar semidiurnal tidal amplitudes in the ionosphere derived from the total electron content were investigated over Brazil from 2011 to 2014. The results showed annual, semiannual and triannual oscillations as the dominant components. Additionally, the most pronounced short-period oscillations were observed between 7 and 11 d, which suggest a possible coupling of the lunar tide and planetary waves.
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Short summary
A new algorithm for medium-scale gravity wave analysis was developed for studies of gravity waves observed by airglow imaging. With this procedure, observation datasets can be analyzed to extract gravity wave parameters, such as period, horizontal wavelength, and phase speed, for climatological purposes. The procedure showed reliable performance and is ready for use at other observation sites.
A new algorithm for medium-scale gravity wave analysis was developed for studies of gravity...
