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Ionospheric Response to the Interplanetary Shock

Authors :
Q.-G. Zong
B. W. Reinisch
P. Song
I. Galkin
X. J. Liu
Paul Song
John Foster
Michael Mendillo
Dieter Bilitza
Source :
AIP Conference Proceedings.
Publication Year :
2008
Publisher :
AIP, 2008.

Abstract

The Cluster spacecraft and ground-based Digisonde network observed on November 7, 2004 a strong interplanetary shock interaction with Earth's magnetosphere which initiated a strong magnetic storm with Dst = −373 nT. When the interplanetary shock encountered the Earth system, the Cluster fleet was traveling in the inner magnetosphere region (L shell = 4.2) at almost exactly the Cluster's perigee (around 0900 MLT). This event offers an excellent opportunity to study the geospace response to a powerful interplanetary shock. The angle between the sun-Earth line and the normal direction of the shock front is only 3.0 degree indicating that the shock hit the geospace at ∼12 LT initially. It is found that energetic particle fluxes are strongly enhanced and the shock related ionospheric phenomena have obvious longitudinal and latitudinal distribution. The interplanetary shock has a significant influence on the dayside mid-high latitude stations, e.g., Millstone Hill, Wallops Island, etc. whereas the stations in t...

Details

ISSN :
0094243X
Database :
OpenAIRE
Journal :
AIP Conference Proceedings
Accession number :
edsair.doi...........52e2a79ece4db4c14e2866256f2d87f0
Full Text :
https://doi.org/10.1063/1.2885033