Quiet-time mass and energy transport in GUMICS-4 global MHD simulation, 2: Tracing mass and energy within the magnetosphere

Details Quiet-time mass and energy transport in GUMICS-4 global MHD simulation, 2: Tracing mass and energy within the magnetosphere Quiet-time mass and energy transport in GUMICS-4 global MHD simulation, 2: Tracing mass and energy within the magnetosphere

Dec 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004agufmsm11c..07l&link_type=abstract

American Geophysical Union, Fall Meeting 2004, abstract #SM11C-07

Physics

2724 Magnetopause, Cusp, And Boundary Layers, 2753 Numerical Modeling, 2764 Plasma Sheet, 2784 Solar Wind/Magnetosphere Interactions

Scientific paper

During southward IMF, reconnection at the frontside magnetopause has been demonstrated to control the rate of energy, magnetic flux and plasma transfer from the solar wind to the magnetosphere. During northward IMF, the reconnection locations move to high latitudes and the energy transfer efficiency becomes much smaller. However, plasma transfer still takes place; recent results have suggested Kelvin-Helmholtz instability at the magnetopause flanks to be one energy and mass transfer mechanism during northward IMF. Here we trace the mass and energy flow trajectories within the magnetosphere using the GUMICS-4 global MHD simulation. We examine how the plasma sheet density and temperature are determined by the mass and energy transfer routes. Finally, we investigate the extent at which the plasma sheet characteristics depend on the solar wind parameters and the mass and energy entry sites and processes at the magnetopause.

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