Articles | Volume 9, issue 12
https://doi.org/10.5194/amt-9-5955-2016
https://doi.org/10.5194/amt-9-5955-2016
Research article
 | 
12 Dec 2016
Research article |  | 12 Dec 2016

High-resolution observations of small-scale gravity waves and turbulence features in the OH airglow layer

René Sedlak, Patrick Hannawald, Carsten Schmidt, Sabine Wüst, and Michael Bittner

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Short summary
In this paper a SWIR airglow imager is presented. It is especially designed for the observation of small-scale gravity waves and turbulence features in the OH airglow layer with a high spatio-temporal resolution of up to 17 m (at mesopause heights) and 2.5 to 2.8 s. Two case studies show small-scale wave structures with horizontal wavelengths of approximately 550 m as well as vortex formation and decomposition of wave fronts, both indicating the onset of turbulence.