Magnetospheric electric field variations caused by storm-time shock fronts

On January 20, 2005 there was an X 7.1 solar flare at 0636 UT with an accompanied halo coronal mass ejection (CME). The resultant interplanetary shock impacted earth ∼36 h later. Near earth, the Advanced Composition Explorer (ACE) spacecraft observed two impulses with a staircase structure in densit...

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Veröffentlicht in:	Advances in space research 2008-07, Vol.42 (1), p.181-191
Hauptverfasser:	Kokorowski, M., Bering, E.A., Ruohoniemi, M., Sample, J.G., Holzworth, R.H., Bale, S.D., Blake, J.B., Collier, A.B., Hughes, A.R.W., Lay, E.H., Lin, R.P., McCarthy, M.P., Millan, R.M., Moraal, H., O’Brien, T.P., Parks, G.K., Pulupa, M., Reddell, B.D., Smith, D.M., Stoker, P.H., Woodger, L.
Format:	Artikel
Sprache:	eng
Schlagworte:	Convection Electric field Relativistic electron precipitation Shock wave Substorm
Online-Zugang:	Volltext
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Zusammenfassung:	On January 20, 2005 there was an X 7.1 solar flare at 0636 UT with an accompanied halo coronal mass ejection (CME). The resultant interplanetary shock impacted earth ∼36 h later. Near earth, the Advanced Composition Explorer (ACE) spacecraft observed two impulses with a staircase structure in density and pressure. The estimated earth-arrival times of these impulses were 1713 UT and 1845 UT on January 21, 2005. Three MINIature Spectrometer (MINIS) balloons were aloft on January 21st; one in the northern polar stratosphere and two in the southern polar stratosphere. MeV relativistic electron precipitation (REP) observed by all three balloons is coincident (
ISSN:	0273-1177 1879-1948
DOI:	10.1016/j.asr.2008.03.006