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18 December 2019 Comparison of internal gravity waves variations in the mesopause region according to observations at Maimaga station with EOS MLS (Aura) temperature data
Vera I. Sivseva, Petr P. Ammosov, Galina A. Gavrilyeva, Igor I. Koltovskoi, Anastasiia M. Ammosova
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Proceedings Volume 11208, 25th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics; 112089B (2019) https://doi.org/10.1117/12.2540797
Event: XXV International Symposium, Atmospheric and Ocean Optics, Atmospheric Physics, 2019, Novosibirsk, Russian Federation
Abstract
The temperature data of the mesopause region obtained for the period 2013-2018 at the station Maimaga (63.04° N, 129.51° E) was investigated. During the winter period of the 2014–2015 observation season, the characteristic of the internal gravity waves (IGW) activity σgw has lower values than in other seasons, and the average night temperature of the mesopause region, on the contrary, exceeds corresponding values in other seasons. For comparison, satellite data of temperature profiles obtained by EOS MLS (Aura) are given. After isolating and subtracting the contribution of the gravitational component from the EOS MLS temperature profiles for the region above the Maimaga station, the difference in the winter stratopause of the 2014-2015 season is noticeable. During this season, the winter stratopause has lower temperatures than in other seasons, taking into account the deduction of the contribution of temperature fluctuations due to IGW.
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Vera I. Sivseva, Petr P. Ammosov, Galina A. Gavrilyeva, Igor I. Koltovskoi, and Anastasiia M. Ammosova "Comparison of internal gravity waves variations in the mesopause region according to observations at Maimaga station with EOS MLS (Aura) temperature data", Proc. SPIE 11208, 25th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 112089B (18 December 2019); https://doi.org/10.1117/12.2540797
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KEYWORDS
Satellites
Temperature metrology
Spectrographs
Atmospheric propagation
Mesosphere
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