Other
Scientific paper
Dec 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005agufmsm51b1292h&link_type=abstract
American Geophysical Union, Fall Meeting 2005, abstract #SM51B-1292
Other
2463 Plasma Convection (2760), 2736 Magnetosphere/Ionosphere Interactions (2431), 2744 Magnetotail, 2760 Plasma Convection (2463)
Scientific paper
Plasma from the high latitude ionosphere is continuously flowing to the magnetosphere, transferring both mass and energy between the two regions. This outflow is caused by a number of mechanisms, both in the polar cap and auroral zone, including the polar wind, photoelectron heating, wave-particle interactions and others. External influences such as the solar wind pressure and Interplanetary Magnetic Field (IMF) have been shown to affect the rate of outflow as well as the destination of the outflowing particles. Of particular interest is the role ionospheric convection plays, which in turn is controlled in large part by the IMF. Single particle tracing methods combined with Akebono particle and SuperDARN HF radar data are used to study the influence the IMF and convection electric field have on the fate of low energy (a few eV) outflowing ions. Particles are traced using the guiding center equations of motion for over 100 events using observed particle, IMF, and convection electric field data. The effect the IMF By and Bz components as well as the IMF magnitude have on various aspects of thermal outflow will be presented.
Howarth Andrew
Yau Andrew W.
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