Annales Geophysicae
Annales Geophysicae
ANGEO
Articles | Volume 43, issue 1
Articles | Volume 43, issue 1
https://doi.org/10.5194/angeo-43-1-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/angeo-43-1-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 43, issue 1
Regular paper
 | 
06 Jan 2025
Regular paper |  | 06 Jan 2025

Investigating the role of gravity waves in mesosphere and lower-thermosphere (MLT) inversions at low latitudes

Chalachew Lingerew and U. Jaya Prakash Raju

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Short summary
The study uses data from soundings of the SABER satellite to examine the mesospheric inversion layer (MIL) and the related gravity wave energy and instability. In the mesosphere and lower-thermosphere (MLT) region, upper inversions occur with less than 40 % frequency, while the lower inversions are below 20 %. High gravity wave energy (~100 J/kg) in the upper MLT (85–90 km) is linked to instability, driving inversion phenomena. Conversely, the trend is less pronounced in the lower-MLT region.
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