HR: 13:55h
AN: SM13C-02    [Abstracts]
TI: Cluster Survey of High Speed Bulk Flows and Field Aligned Beams in Near-Earth Plasma Sheet
AU: * Twitty, C K
EM: colleent@ssl.berkeley.edu
AF: Space Sciences Lab, UC Berkeley, 7 Gauss Way, Berkeley, 94720 United States
AU: Phan, T
EM: phan@ssl.berkeley.edu
AF: Space Sciences Lab, UC Berkeley, 7 Gauss Way, Berkeley, 94720 United States
AU: Reme, H
EM: Henri.Reme@cesr.fr
AF: Centre d'Etude Spatiale des Rayonnements, BP4346, Toulouse, 31028 France
AB: We have surveyed all high speed flows detected by Cluster in the near-Earth plasma sheet from 2001-2003. The flows are characterized as either bursty bulk flows (BBFs) or field-aligned beams. This survey confirms the previously reported dawn-dusk assymetry in BBFs, while no such asymmetry is present for plasma sheet boundary layer field-aligned beams. We will also report the occurence rate of field aligned-beams in the plasma sheet and its possible dependence on AE and Kp indices.
DE: 2744 Magnetotail
DE: 2748 Magnetotail boundary layers
DE: 2764 Plasma sheet
SC: SPA-Magnetospheric Physics [SM]
MN: 2004 AGU Fall Meeting