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Title: Dayside global ionospheric response to the major interplanetary events of October 29–30, 2003 ‘‘Halloween Storms’’
Authors: Mannucci, A. J.
Tsurutani, B. T.
Iijima, B. A.
Komjathy, A.
Saito, A.
Gonzalez, W. D.
Guarnieri, F. L.
Kozyra, J. U.
Skoug, R.
Keywords: ionospheric response
interplanetary electric fields
solar wind
Issue Date: 4-May-2005
Publisher: Geophysical Research Letters
Citation: Geophysical Research Letters, VOL. 32, L12S02, doi:10.1029/2004GL021467, 2005
Abstract: We demonstrate extreme ionospheric response to the large interplanetary electric fields during the ‘‘Halloween’’ storms that occurred on October 29 and 30, 2003. Within a few (2 – 5) hours of the time when the enhanced interplanetary electric field impinged on the magnetopause, dayside total electron content increases of ~40% and ~250% are observed for the October 29 and 30 events, respectively. During the Oct 30 event, ~900% increases in electron content above the CHAMP satellite (~400 km altitude) were observed at mid-latitudes (±30 degrees geomagnetic). The geomagnetic storm-time phenomenon of prompt penetration electric fields is a possible contributing cause of these electron content increases, producing dayside ionospheric uplift combined with equatorial plasma diffusion along magnetic field lines to higher latitudes, creating a ‘‘daytime super-fountain’’ effect.
Appears in Collections:JPL TRS 1992+

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