Tracking a major interplanetary disturbance with SMEI

Stephen Tappin, A Buffington, Mark Cooke, Christopher Eyles, PP Hick, PE Holladay, BV Jackson, JC Johnston, T Kuchar, D Mizuno, JB Mozer, S Price, RR Radick, George Simnett, D Sinclair, NR Waltham, DF Webb

Research output: Contribution to journalAbstract

60 Citations (Scopus)

Abstract

We present the first clear observations of an Earth-directed interplanetary disturbance tracked by the Solar Mass Ejection Imager (SMEI). We find that this event can be related to two halo CMEs seen at the Sun about 2 days earlier, and which merged in transit to 1 AU. The disturbance was seen about 16 hours before it reached Earth, and caused a severe geomagnetic storm at the time which would have been predicted had SMEI been operating as a real-time monitor. It is concluded that SMEI is capable of giving many hours advance warning of the possible arrival of interplanetary disturbances.
Original languageEnglish
Pages (from-to)L02802
JournalGeophysical Research Letters
Volume31
Publication statusPublished - 1 Jan 2004

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