Physics
Scientific paper
Dec 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002agufmsm22a0570e&link_type=abstract
American Geophysical Union, Fall Meeting 2002, abstract #SM22A-0570
Physics
2740 Magnetospheric Configuration And Dynamics, 2744 Magnetotail, 2778 Ring Current, 2788 Storms And Substorms
Scientific paper
The interaction of the solar wind with the Earth's geomagnetic field leads to a complex current system within the magnetosphere. Understanding this current system requires a global treatment of the solar wind-magnetosphere-ionosphere system. Global magnetohydrodynamic (MHD) simulations provide a reasonable description of the large-scale structure of the Earth's magnetosphere as it responds to changes in the interplanetary magnetic field (IMF) direction. Modeling the inner magnetosphere however, is limited by the lack of a proper representation of ring current formation. This is particularly important for modeling magnetic storms. In this talk, we will discuss the consequences of including some of the physical effects of the ring current to the MHD solutions. The approach will be to modify the pressure distribution in the inner magnetosphere. Comparison of results with and without these modifications will be made. The changes to the inner magnetosphere can have an impact on the entire magnetospheric configuration.
Ashour-Abdalla Maha
Coroniti Ferdinan V.
El-Alaoui Mostafa
Richard Robert L.
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