Articles | Volume 13, issue 11
Atmos. Meas. Tech., 13, 6067–6093, 2020
https://doi.org/10.5194/amt-13-6067-2020
Atmos. Meas. Tech., 13, 6067–6093, 2020
https://doi.org/10.5194/amt-13-6067-2020

Research article 16 Nov 2020

Research article | 16 Nov 2020

Variability of the Brunt–Väisälä frequency at the OH-airglow layer height at low and midlatitudes

Sabine Wüst et al.

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Latest update: 05 Dec 2021
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Short summary
With airglow spectrometers, the temperature in the upper mesosphere/lower thermosphere can be derived each night. The data allow to estimate the amount of energy which is transported by small-scale atmospheric waves, known as gravity waves. In order to do this, information about the Brunt–Väisälä frequency and its evolution during the year is necessary. This is provided here for low and midlatitudes based on 18 years of satellite data.