Physics
Scientific paper
May 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006agusmsm22a..03e&link_type=abstract
American Geophysical Union, Fall Meeting 2007, abstract #SM22A-03
Physics
2740 Magnetospheric Configuration And Dynamics, 2744 Magnetotail, 2764 Plasma Sheet
Scientific paper
Observations have revealed that the magnetotail current sheet is characterized by a variety of meso-scale structures. These current sheet structures include wave-like structures extending along and across the magnetotail and bifurcated current sheet configurations. We will use solar wind monitors, spacecraft data, and global magnetohydrodynamic (MHD) simulations to investigate these observed variations. Global MHD simulations provide a reasonable description of the large-scale structure of the Earth's magnetosphere as it responds to changes to solar wind and interplanetary magnetic field (IMF) direction. High-resolution MHD simulations have reproduced parts of the observed current sheet structure. The simulations were driven by observed solar wind conditions from the ACE or GEOTAIL spacecraft, for intervals selected from the Cluster satellite data. Detailed analysis of the simulation results, including comparison to Cluster data, will be used to understand whether the observed structure can be attributed to external driving, local instabilities, or the distribution of localized reconnection sites. This study will focus primarily on the formation and evolution of wave-like structures in the magnetotail.
Ashour-Abdalla Maha
El-Alaoui Mostafa
Richard Robert L.
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