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Gravity wave instability structures and turbulence from more than 1.5 years of OH[ast] airglow imager observations in SloveniaRené Sedlak,
Patrick Hannawald,
Carsten Schmidt,
Sabine Wüst,
Michael Bittner,
Samo Stanič, 2021, original scientific article
Abstract: We analyzed 286 nights of data from the OH* airglow imager FAIM 3 (Fast Airglow IMager) acquired at Otlica Observatory, Slovenia, between 26 October 2017 and 6 June 2019. Measurements were performed with a spatial resolution of 24 m per pixel and a temporal resolution of 2.8 s. Multiple turbulence episodes were observed and the energy dissipation rate in the upper mesosphere/lower thermosphere region was estimated from image sequences in 25 cases. Values range around 0.08 and 9.03 W/kg and would lead to an approximated localized maximum heating of 0.03–3.02 K per turbulence event.
Keywords: upper mesosphere, lower thermosphere, remote sensing, gravity waves, turbulence, Bora episodes
Published in RUNG: 25.10.2021; Views: 2916; Downloads: 0
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