| Autor: |
Yasyukevich A.S., Klimenko M.V., Kulikov Yu.Yu., Klimenko V.V., Bessarab F.S., Korenkov Yu.N., Marichev V.N., Ratovsky K.G., Kolesnik S.A. |
| Jazyk: |
angličtina |
| Rok vydání: |
2018 |
| Předmět: |
|
| Zdroj: |
Solar-Terrestrial Physics, Vol 4, Iss 4, Pp 48-58 (2018) |
| Druh dokumentu: |
article |
| ISSN: |
2500-0535 |
| DOI: |
10.12737/stp-44201807 |
| Popis: |
We present the results of complex obser-vations of various parameters of the middle and upper atmosphere over Siberia in December 2012 – January 2013, during a major sudden stratospheric warming (SSW) event. We analyze variations in ozone concentration from microwave measurements, in stratosphere and lower mesosphere temperatures from lidar and satellite measurements, in the F2-layer critical frequency (foF2), in the total electron content (TEC), as well as in the ratio of concentrations of atomic oxygen to molecular nitrogen (O/N2) in the thermosphere. To interpret the observed disturbances in the upper atmosphere, the experimental measurements are compared with the results of model calculations obtained with the Global Self-consistent Model of Thermosphere—Ionosphere—Protonosphere (GSM TIP). The response of the upper atmosphere to the SSW event is shown to be a decrease in foF2 and TEC during the evolution of the warming event and a prolonged increase in O/N2, foF2, and TEC after the SSW maximum. For the first time, we observe the relation between the increase in stratospheric ozone, thermospheric O/N2, and ionospheric electron density for a fairly long time (up to 20 days) after the SSW maximum at midlatitudes. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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