Physics – Plasma Physics
Scientific paper
Dec 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008agufmsm13b..03s&link_type=abstract
American Geophysical Union, Fall Meeting 2008, abstract #SM13B-03
Physics
Plasma Physics
2409 Current Systems (2721), 2712 Electric Fields (2411), 2730 Magnetosphere: Inner, 2753 Numerical Modeling, 2788 Magnetic Storms And Substorms (7954)
Scientific paper
The ability of inner magnetospheric numerical models to predict storm- and substorm-associated disturbances in the ring current region depends, among other things, on inclusion of essential plasma physics processes. One such numerical model, the Rice Convection Model (RCM), is a first-principles inner magnetospheric code that evolves the particle distribution function using electric fields computed self- consistently. We have recently extended the RCM by including a module for estimating field-line potential drops and auroral electron precipitation using the well-known Knight relation. We also developed a module to represent the effects of ion outflows along auroral field lines. Using this new capability, we present RCM event simulations of an isolated substorm and a large geomagnetic storm to evaluate the role of field-line potential drops and the effect of ion outflows on the ring current, field-aligned currents, and the structure of the aurora.
Erickson Gary M.
Sazykin Stanislav
Song Yushu
Spiro Robert W.
Thomsen Michelle F.
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