TIDs triggered by CIR/HSSS-related storms

0497725 - ÚFA 2019 BE eng A - Abstract
Burešová, Dalia - Chum, Jaroslav - Belehaki, A. - Altadil, D. - Blanch, E. - Kouba, Daniel - Galkin, I. - Mošna, Zbyšek - Urbář, Jaroslav
TIDs triggered by CIR/HSSS-related storms.
15th European Space Weather Week. Brussels: STCE, 2018.
[European Space Weather Week /15./. 05.11.2018-09.11.2018, Leuven]
Institutional support: RVO:68378289
Keywords : ionosphere * travelling ionospheric disturbances (TIDs) * radiowave propagation * Pruhonice digisonde * magnetic storm
OECD category: Meteorology and atmospheric sciences
http://www.stce.be/esww15/program/session_details.php?nr=12#

The paper presents results of the analysis of changes in the regular ionospheric variability and GW activity observed over European middle latitudes during CIR/HSSS-related storms (12 events in total) which occurred within the period of 2016-2017. We analyzed variation of the main ionospheric parameters retrieved from the manually scaled ionograms, Pruhonice Digisonde DPS-4D drift measurements and spectrograms obtained from the Czech Continuous Doppler Sounding System (CDSS). There are also presented results of wave activity analysis carried out in the frame of H2020-COMPET-2017 TechTIDE project (Warning and Mitigation Technologies for Travelling Ionospheric Disturbances Effects) using selected methodologies and special tools. The results were compared with those obtained for strong magnetic storms of CME origin. During the analyzed CIR/HSSS-related events we observed significant TID activity lasting for several days. Most of the observed storm-related TIDs had periods in the range of 60-180 min. During the analyzed events we also observed extraordinary spreads and plasma bubbles at the F region heights.
Permanent Link: http://hdl.handle.net/11104/0290234