Physics
Scientific paper
Dec 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004agufmsm11b..07m&link_type=abstract
American Geophysical Union, Fall Meeting 2004, abstract #SM11B-07
Physics
2431 Ionosphere/Magnetosphere Interactions (2736), 2736 Magnetosphere/Ionosphere Interactions, 2753 Numerical Modeling, 2768 Plasmasphere
Scientific paper
We have developed a new model that includes both plasmaspheric refilling and the evolution of the plasmapause. The model self-consistently solves the temporal variation of plasma distribution from the ionosphere within the dynamic plasmapause. In the saturated plasmasphere, we found good agreement between the model and previous measurements of electron densities. Furthermore, by imposing a realistic electric potential and depleted flux tubes, the model demonstrates the evolution of a sharp gradient in the plasma density distribution, such as seen at the plasmapause. The model results indicate that the equatorial density profile depends on the degree of flux tube depletion. In this presentation, a detailed analysis of the plasmapause evolution process will be discussed. We will address the impact of the dynamic plasmapause on the refilling time scale, demonstrating the dynamical plasma coupling between plasmasphere and ionosphere.
Bailey Graham J.
Fuller-Rowell Tim J.
Lin Chaney
Maruyama Naomi
Millward George
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