Physics
Scientific paper
May 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002agusmsm22a..08g&link_type=abstract
American Geophysical Union, Spring Meeting 2002, abstract #SM22A-08
Physics
2730 Magnetosphere: Inner, 2731 Magnetosphere: Outer, 2736 Magnetosphere/Ionosphere Interactions, 2776 Polar Cap Phenomena
Scientific paper
Application of published terrestrial outflow studies to the broader problem of globally modeling the flow's impact on magnetotail dynamics is complicated by several factors. It is important to apply corrections to derived fluxes for convection drifts or for the effects of spacecraft potential. Also, because acceleration processes take place along a distributed altitude range, it is not clear which portions of the reported flows types will reach escape velocity and therefore reach the inner boundary of global magnetospheric models. We seek to address these issues by providing a description of the terrestrial outflows capable of populating and influencing the magnetosphere outside of 3 RE altitude and by demonstrating, via particle simulations, the conditions under which this outflow can influence plasma sheet dynamics. The description, both statistical and functional, is of the terrestrial ion outflow for energies below 300 eV associated with auroral and polar latitude processes. The simulations demonstrate the conditions under which dayside and nightside outflows access the near-Earth transitional region and the more distant neutral point region, as a function of interplanetary parameters observed to drive the flows.
Giles Barbara L.
Moore Thomas Earle
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