HR: 0800h
AN: SM31A-1213 [Abstracts]
TI: Cluster/Double Star Observations of Substorm Dipolarization
AU: Baumjohann, W
EM: baumjohann@oeaw.ac.at
AF: IWF/OEAW, Schmiedlstr. 6, Graz, 8042
Austria
AU: * Nakamura, R
EM: rumi.nakamura@oeaw.ac.at
AF: IWF/OEAW, Schmiedlstr. 6, Graz, 8042
Austria
AU: Carr, C
EM: c.m.carr@ic.ac.uk
AF: Imperial College, Prince Consort Road, London, SW72BZ
United Kingdom
AU: Volwerk, M
EM: Martin.Volwerk@assoc.oeaw.ac.at
AF: IWF/OEAW, Schmiedlstr. 6, Graz, 8042
Austria
AU: Zhang, T
EM: tielong.zhang@oeaw.ac.at
AF: IWF/OEAW, Schmiedlstr. 6, Graz, 8042
Austria
AU: Asano, Y
EM: yoshihiro.asano@oeaw.ac.at
AF: IWF/OEAW, Schmiedlstr. 6, Graz, 8042
Austria
AU: Eichelberger, H
EM: hue@oeaw.ac.at
AF: IWF/OEAW, Schmiedlstr. 6, Graz, 8042
Austria
AU: Balogh, A
EM: a.balogh@ic.ac.uk
AF: Imperial College, Prince Consort Road, London, SW72BZ
United Kingdom
AU: Glassmeier, K
EM: kh.glassmeier@tu-bs.de
AF: TU Braunschweig, Mendelssohnstr. 3, Braunschweig, 38106
Germany
AU: Mouikis, C
EM: cmouikis@atlas.sr.unh.edu
AF: U. New Hampshire, Space Science Center, Durham, NH 03824
United States
AU: Kistler, L
EM: Lynn.KISTLER@unh.edu
AF: U. New Hampshire, Space Science Center, Durham, NH 03824
United States
AU: Klecker, B
EM: berndt.klecker@mpe.mpg.de
AF: MPE, Postfach 1312, Garching, 85741
Germany
AU: Reme, H
EM: Reme@cesr.fr
AF: CESR/CNRS, 9 Avenue du Colonel Roche, Toulouse, 31028
France
AB:
Simultaneous observations of the inner magnetosphere and the mid tail are essential in substorm studies because of the
initial local onset and the subsequent global expansion of the disturbance. Particularly, how these two key regions are
linked in terms of fast flow and magnetic field dipolarizations are yet to be determined to understand the mechanism of
substorm development. In this paper, we present the first analysis of substorm dipolarizations observed by Cluster and Double
Star during the 2004 summer, when successive radial conjunctions between 10-12 Re and 16-19 Re were realized. By using
multi-point analysis techniques, the direction and speed of the propagation is determined using Cluster and is then compared
with the global propagation of the disturbances with Double Star. Recurrence of these dipolarization events enabled us to
draw a more concise picture of the substorm development.
DE: 2708 Current systems (2409)
DE: 2740 Magnetospheric configuration and dynamics
DE: 2744 Magnetotail
DE: 2764 Plasma sheet
DE: 2788 Storms and substorms
SC: SPA-Magnetospheric Physics [SM]
MN: 2004 AGU Fall Meeting