Dynamic Response of the far Tail of the Earth Magnetosphere to IMF Changes and Magnetospheric Activity: a STEREO View

HR: 1340h
AN: SM23A-1172 [Abstracts]
TI: Dynamic Response of the far Tail of the Earth Magnetosphere to IMF Changes and Magnetospheric Activity: a STEREO View
AU: * Sauvaud, J
EM: jean-andre.sauvaud@cesr.fr
AF: Centre d'Etude Spatiale des rayonnements, 9 avenue du colonel Roche, Toulouse, 31028, France
AU: Jacquey, C
EM: christian.jacquey@cesr.fr
AF: Centre d'Etude Spatiale des rayonnements, 9 avenue du colonel Roche, Toulouse, 31028, France
AU: Lin, R
EM: rlin@ssl.berkeley.edu
AF: SSL/UCB, 7 Gauss Way University of Califoria, Berkeley, CA 94720-7450, United States
AU: Larson, D
EM: davin@ssl.berkeley.edu
AF: SSL/UCB, 7 Gauss Way University of Califoria, Berkeley, CA 94720-7450, United States
AU: Luhmann, J
EM: jgluhman@ssl.berkeley.edu
AF: SSL/UCB, 7 Gauss Way University of Califoria, Berkeley, CA 94720-7450, United States
AU: Kistler, L
EM: Lynn.Kistler@unh.edu
AF: University of New Hampshire, Space Science Center, Morse Hall 39 College Road, Durham, NH 03824, United States
AU: Russell, C
EM: ctrussell@igpp.ucla.edu
AF: University of California Los Angeles, Institute of Geophysics and Planetary Physics, 405 Hilgard Ave., Los Angeles, CA 90095-1567, United States
AB: From the end of February to the beginning of March 2007, STEREO-B was traveling away from the Earth at distances between 200 and 360 Re close to the magnetospheric tail allowing to study the dynamics of the far tail and its boundaries in response to IMF changes and to magnetospheric activity. We present results obtained from very disturbed period (AE higher than 500 nT) to nearly quiet conditions and show that the far tail is: -i) strongly affected by traveling plasmoids during strong activity periods, -ii) presents a quick response to weak magnetospheric disturbances (AE lower than 100 nT) and is directly connected along field lines to acceleration regions located close to the Earth.
DE: 2134 Interplanetary magnetic fields
DE: 2756 Planetary magnetospheres (5443, 5737, 6033)
DE: 2764 Plasma sheet
DE: 2790 Substorms
SC: SPA-Magnetospheric Physics [SM]
MN: 2007 Fall Meeting