Articles | Volume 12, issue 1
Atmos. Meas. Tech., 12, 457–469, 2019
https://doi.org/10.5194/amt-12-457-2019

Special issue: Layered phenomena in the mesopause region (ACP/AMT inter-journal...

Atmos. Meas. Tech., 12, 457–469, 2019
https://doi.org/10.5194/amt-12-457-2019

Research article 25 Jan 2019

Research article | 25 Jan 2019

Seasonal and intra-diurnal variability of small-scale gravity waves in OH airglow at two Alpine stations

Patrick Hannawald et al.

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Latest update: 27 Feb 2021
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Short summary
We use a near-infrared camera for the investigation of gravity waves. The camera observes the airglow layer, which is modulated by the gravity waves. The image processing, including the removal of the stars is explained. We describe the analysis with a 2D fast Fourier transform and automatic derivation of the wave parameters. The results show a clear seasonal and intra-diurnal variability, which is characterised in order to improve our understanding of gravity waves in the middle atmosphere.