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

doi:10.1117/12.2540797

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

Author Affiliations +

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 σ_gw 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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