Magnetosphere ionosphere coupling during the CME events of 07 12 November 2004

Details Magnetosphere ionosphere coupling during the CME events of 07 12 November 2004 Magnetosphere ionosphere coupling during the CME events of 07 12 November 2004

Dec 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008jastp..70.2101b&link_type=abstract

Journal of Atmospheric and Solar-Terrestrial Physics, Volume 70, Issue 17, p. 2101-2111.

Physics

2

Coronal Mass Ejection, Magnetosphere-Ionosphere Coupling, Geomagnetic Storm, Penetration Electric Field

Scientific paper

The response of the magnetosphere and ionosphere to the coronal mass ejection (CME) events during the period 07-12 November 2004 is studied using Cluster and ground-based (ESR, EISCAT and Jicamarca radars and magnetometer) observations. The coordinated observations provide a good example of the magnetosphere-ionosphere coupling through prompt penetration electric field (PPEF). The strongest PPEF ever recorded appears to be generated in the magnetosphere by the v×B effect, which is mapped to the high latitude ionosphere along the geomagnetic field lines and promptly penetrated to low latitudes. The CMEs, though started with a weak front end ( and 3.3 nPa), attained velocities up to , pressure up to 60 nPa and IMF components up to . The impact of the CME compressed and deformed the magnetosphere such that Cluster, which was in the southern magnetospheric lobe, suddenly found itself in the magnetosheath. While crossing a compressed magnetosheath under steady solar wind pressure and steady velocity components, the magnetosphere shifted back to the Cluster position for about 1.5 h when IMF By, which was negative before and after, became zero. The high latitude ionosphere over the ESR radar responded directly to the CMEs mainly through particle precipitation that resulted in strong ionisation and thermal expansion of the ionosphere.

Affiliated with

Also associated with

No associations

Rating

Magnetosphere ionosphere coupling during the CME events of 07 12 November 2004 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Magnetosphere ionosphere coupling during the CME events of 07 12 November 2004, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetosphere ionosphere coupling during the CME events of 07 12 November 2004 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-968670