HR: 1340h
AN: SM23B-0430    [Abstracts]
TI: Magnetotail Current Sheet Thinning in Global Simulations of Magnetosphere Dynamics.
AU: Taktakishvili, A
EM: staktak@fit.edu
AF: NASA Goddard Space Flight Center, Code 612.3, Greenbelt, MD 20771 United States
AU: * Kuznetsova, M
EM: masha@elbrus.gsfc.nasa.gov
AF: NASA Goddard Space Flight Center, Code 612.3, Greenbelt, MD 20771 United States
AU: Hesse, M
SM23B-0430 AF: NASA Goddard Space Flight Center, Code 612.3, Greenbelt, MD 20771 United States
AU: Rastatter, L
SM23B-0430 AF: NASA Goddard Space Flight Center, Code 612.3, Greenbelt, MD 20771 United States
AU: Toth, G
SM23B-0430 AF: University of Michigan, 2455 Hayward St, Ann Arbor, MI 48109 United States
AU: De Zeeuw, D
SM23B-0430 AF: University of Michigan, 2455 Hayward St, Ann Arbor, MI 48109 United States
AU: Gombosi, T
SM23B-0430 AF: University of Michigan, 2455 Hayward St, Ann Arbor, MI 48109 United States
AB: We perform simulations of magnetotail dynamics using the global MHD models at the Community Coordinated Modeling Center (CCMC). We select solar wind conditions which drive the accumulation of magnetic field in the tail lobes and subsequent magnetotail current sheet thinning. We will demonstrate the formation of bifurcated and triple-peak current sheets during this phase. In addition, we will analyze the dependence of the thin current sheet structure, location, rate of the thinning and timing of reconnection onset on solar wind conditions. Finally, we will discuss the role of dayside reconnection rate, of diffusion at the flanks, and of distant tail processes on the dynamics of the current sheet thinning.
DE: 2723 Magnetic reconnection (7526, 7835)
DE: 2744 Magnetotail
DE: 2748 Magnetotail boundary layers
DE: 2788 Magnetic storms and substorms (7954)
SC: SPA-Magnetospheric Physics [SM]
MN: Fall Meeting 2005