Other
Scientific paper
Dec 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003agufmsm21b0200g&link_type=abstract
American Geophysical Union, Fall Meeting 2003, abstract #SM21B-0200
Other
2740 Magnetospheric Configuration And Dynamics, 2744 Magnetotail, 2753 Numerical Modeling, 2760 Plasma Convection, 2764 Plasma Sheet
Scientific paper
We present a comparison of statistical analyses of flow patterns in the near-earth plasma sheet of the geomagnetic tail, and in the near-earth simulation domain of global MHD simulations of the magnetosphere. To ensure a valid data/model comparison, we include in the investigation only subsets of both datasets with similar solar wind input conditions. Statistical earthward flow patterns in the geomagnetic tail have been interpreted as the return flow of reconnected field lines in the Dungey convection model of an open magnetosphere. A similar statistically averaged flow pattern in physics-based global MHD models should provide a necessary but not sufficient condition for model validation. We also investigate trends in other MHD parameters to test for comparison validity, and attempt to measure in both datasets the earthward convecting average mass, momentum, and energy flux through the plasma sheet as functions of solar wind conditions, geomagnetic activity, and convection speed.
Goodrich Charles Carson
Guild Timothy
Huang Chan Chun
Hughes Jacob
Kepko Larry
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