Quasi-wave variations in foEs during stratospheric warmings of 2008–2010 according to data from Kaliningrad ionospheric station
- Autores: Koren’kov Y.N.1, Koren’kova N.A.1, Bessarab F.S.1,2, Lechshenko V.S.1
-
Afiliações:
- Kaliningrad Division of the Institute of Terrestrial Magnetism, the Ionosphere, and Radiowave Propagation
- Kant Baltic Federal University
- Edição: Volume 57, Nº 4 (2017)
- Páginas: 451-460
- Seção: Article
- URL: https://journals.rcsi.science/0016-7932/article/view/156313
- DOI: https://doi.org/10.1134/S0016793217030082
- ID: 156313
Citar
Resumo
The results of analysis of variations in the sporadic layer critical frequency (foEs) for winter periods of 2008–2010 in which sudden stratospheric warmings were observed are presented in the paper. The data were obtained at Kaliningrad ionospheric station (54.6° N, 20° E) by a Parus digital ionosonde under the usual sounding regime with an interval of 15 min. Daily mean values of foEs were used for the analysis. Solar and geomagnetic activity remained low during the periods under study, making it possible to relate the quasiwave time variations in foEs to the parameters of stratospheric warmings. The results of spectral analysis performed on the basis of continuous wavelet transform showed that, during all warmings occurring in 2008–2010, time variations in foEs show the presence of wave processes with a period of an order of 5 days and longer ones with a period of ~10—11 days. These periods coincide with characteristic periods of planetary waves observed in the atmosphere during sudden stratospheric warnings.
Sobre autores
Yu. Koren’kov
Kaliningrad Division of the Institute of Terrestrial Magnetism, the Ionosphere, and Radiowave Propagation
Email: bessarabf@gmail.com
Rússia, Kaliningrad
N. Koren’kova
Kaliningrad Division of the Institute of Terrestrial Magnetism, the Ionosphere, and Radiowave Propagation
Email: bessarabf@gmail.com
Rússia, Kaliningrad
F. Bessarab
Kaliningrad Division of the Institute of Terrestrial Magnetism, the Ionosphere, and Radiowave Propagation; Kant Baltic Federal University
Autor responsável pela correspondência
Email: bessarabf@gmail.com
Rússia, Kaliningrad; Kaliningrad
V. Lechshenko
Kaliningrad Division of the Institute of Terrestrial Magnetism, the Ionosphere, and Radiowave Propagation
Email: bessarabf@gmail.com
Rússia, Kaliningrad
Arquivos suplementares
