Comparison of HSS and CME Influences on F2-layer based on Storms in October 2005

0355322 - ÚFA 2012 RIV BG eng C - Conference Paper (international conference)
Mošna, Zbyšek - Koucká Knížová, Petra - Georgieva, K. - Kouba, Daniel
Comparison of HSS and CME Influences on F2-layer based on Storms in October 2005.
Proceedings of Fundamental Space Research 2009. Sofie: Bulgarian Academy of Sciences, 2010, s. 97-99. ISBN 978-954-322-409-8.
[Fundamental Space Research 2009. Sunny Beach (BG), 20.09.2009-20.11.2009]
R&D Projects: GA AV ČR KJB300420904; GA AV ČR IAA300420704
Institutional research plan: CEZ:AV0Z30420517
Keywords : High Speed Solar Stream * Coronal Mass Ejection * critical frequency foF2 * virtual height h‘F
Subject RIV: DG - Athmosphere Sciences, Meteorology
http://www.stil.bas.bg/FSR2009/pap97.pdf

Two solar events in October 2005 (HSS: 7 Oct 2005, 19UT and CME: 31 Oct 2005, 18UT) were selected to study the ionospheric response above six ionospheric stations. The magnetospheric response by means of Kp and Dst was similar in both events. Within the ionospheric parameters selected foF2 and h'F were selected. The HSS event was followed by a significant decrease in foF2 values in the duration of 2 days. No change was observed for night foF2 in this case.The response to the CME was much weaker than to the HSS and less change in foF2 was observed. Both events were followed by h'F oscillations which may indicate Travelling Ionospheric Disturbances (TID).
Permanent Link: http://hdl.handle.net/11104/0194122