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Filters: Author is Welling, D. T.  [Clear All Filters]
2012
Authors: Jordanova V K, Welling D T, Zaharia S G, Chen L, and Thorne R M
Title: Modeling ring current ion and electron dynamics and plasma instabilities during a high-speed stream driven storm
Abstract: 1] The temporal and spatial development of the ring current is evaluated during the 23–26 October 2002 high-speed stream (HSS) storm, using a kinetic ring current-atmosphere interactions model with self-consistent magnetic field (RAM-SCB). The effects of nondipolar magnetic field configuration are investigated on both ring current ion and electron dynamics. As the self-consistent magnetic field is depressed at large (>4RE) radial distances on the nightside during the storm main phase, the particles' drift velocities increase, the ion and electron fluxes are reduced and the ring current is confined closer to Earth. In contrast to ions, the electron fluxes increase closer to Earth and the fractional electron energy reaches ∼20% near storm peak due to better electron trapping in a nondipo. . .
Date: 09/2012 Publisher: Journal of Geophysical Research Pages: 1978–2012 DOI: 10.1029/2011JA017433 Available at: http://onlinelibrary.wiley.com/doi/10.1029/2011JA017433/full
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