HR: 09:30h
AN: SM11C-07 [Abstracts]
TI: Quiet-time mass and energy transport in GUMICS-4 global MHD simulation, 2: Tracing mass and energy
within the magnetosphere
AU: Laitinen, T V
EM: tiera.laitinen@helsinki.fi
AF: Finnish Meteorological Institute, Space Research Division, Vuorikatu 15 A, Helsinki, 00101
Finland
AU: Laitinen, T V
EM: tiera.laitinen@helsinki.fi
AF: University of Helsinki, Departmen of Physical Sciences, PL 64, Helsinki, 00014
Finland
AU: * Pulkkinen, T I
EM: tuija.pulkkinen@fmi.fi
AF: Finnish Meteorological Institute, Space Research Division, Vuorikatu 15 A, Helsinki, 00101
Finland
AU: Palmroth, M
EM: minna.palmroth@fmi.fi
AF: Finnish Meteorological Institute, Space Research Division, Vuorikatu 15 A, Helsinki, 00101
Finland
AU: Janhunen, P
EM: pekka.janhunen@fmi.fi
AF: Finnish Meteorological Institute, Space Research Division, Vuorikatu 15 A, Helsinki, 00101
Finland
AU: Koskinen, H E
EM: hannu.koskinen@fmi.fi
AF: University of Helsinki, Departmen of Physical Sciences, PL 64, Helsinki, 00014
Finland
AB:
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.
DE: 2724 Magnetopause, cusp, and boundary layers
DE: 2753 Numerical modeling
DE: 2764 Plasma sheet
DE: 2784 Solar wind/magnetosphere interactions
SC: SPA-Magnetospheric Physics [SM]
MN: 2004 AGU Fall Meeting