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Ionospheric variability observed in connection to mesoscale systems above Europe

Authors

Koucká Knížová,  Petra
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Potužníková,  Kateřina
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Podolská,  Kateřina
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Chum,  Jaroslav
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Mošna,  Zbyšek
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Kouba,  Daniel
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Obrazová,  Dalia
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Hannawald,  Patrick
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Wüst,  Sabine
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Bittner,  Michael
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

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Citation

Koucká Knížová, P., Potužníková, K., Podolská, K., Chum, J., Mošna, Z., Kouba, D., Obrazová, D., Hannawald, P., Wüst, S., Bittner, M. (2023): Ionospheric variability observed in connection to mesoscale systems above Europe, XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG) (Berlin 2023).
https://doi.org/10.57757/IUGG23-1197


Cite as: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5017418
Abstract
Ionospheric plasma is highly variable in a wide range of scales. Atmospheric waves originating in the lower atmosphere seems to contribute substantially to its variability. Particular mesoscale systems are assumed to be effective in generation of Acoustic-gravity waves that are able to propagate upward and potentially reach the ionospheric heights. Our study indicates that there are particular synoptic situations that significantly contribute to state of ionosphere up to F2 region. We focus on tropospheric mesoscale system evolving above Europe during periods of rather low solar and geomagnetic activity when most of the observed ionospheric variability could be attributed to the sources within lower laying atmosphere. Our observation shows an increase of Spread F echo and irregularities after the frontal passage on Continuous Doppler Sounder spectra and DPS 4D ionograms, oscillation (ionospheric parameters) in the gravity wave mode, distortion in diurnal foF2 and hmF2 distribution and changes in plasma flow.