Investigating repeatable ionospheric features during large space storms and superstorms
Final rept. Mar 2013-Jan 214
QUEENSLAND UNIV BRISBANE (AUSTRALIA)
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This project conducted detailed studies on the 6 April 2000 superstorm and on the 25 September 1998 great storm. These studies produced significant results including an analysis on the model performance of CTIPe Coupled Thermosphere- Ionosphere-Plasmasphere Electrodynamics. The 6 April 2000 superstorm Dst -314 nT was complex as the prompt penetration electric field developed and operated under continuous disturbance dynamo electric field effects. Thus, this storm offered the opportunity to study the impact of eastward PPEF on the daytime Equatorial Ionization Anomaly EIA while the disturbance dynamo continued. The 25 September 1998 great stormDst -220 nT was a unique event because of its unusual pattern producing unusual ionospheric storms. Our results reveal some strong longitudinal differences caused by the domination of eastward westward perturbation E-fields in the Australian Indian sector causing the presence absence of the EIA that was reasonably well reproduced by CTIPe.
- Atmospheric Physics
- Plasma Physics and Magnetohydrodynamics