Articles | Volume 14, issue 10
Atmos. Meas. Tech., 14, 6821–6833, 2021
https://doi.org/10.5194/amt-14-6821-2021
Atmos. Meas. Tech., 14, 6821–6833, 2021
https://doi.org/10.5194/amt-14-6821-2021
Research article
22 Oct 2021
Research article | 22 Oct 2021

Gravity wave instability structures and turbulence from more than 1.5 years of OH* airglow imager observations in Slovenia

René Sedlak et al.

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Latest update: 08 Aug 2022
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Short summary
High-resolution images of the OH* airglow layer (ca. 87 km height) acquired at Otlica Observatory, Slovenia, have been analysed. A statistical analysis of small-scale wave structures with horizontal wavelengths up to 4.5 km suggests strong presence of instability features in the upper mesosphere or lower thermosphere. The dissipated energy of breaking gravity waves is derived from observations of turbulent vortices. It is concluded that dynamical heating plays a vital role in the atmosphere.