HR: 0800h
AN: SM11A-0330    [Abstracts]
TI: Antarctic Ground-based Observations During Selected THEMIS Satellite Event Studies
AU: * Weatherwax, A T
EM: aweatherwax@siena.edu
AF: Siena College, Department of Physics, 515 Loudon Road, Loudonville, NY 12211, United States
AU: Lessard, M
EM: marc.lessard@unh.edu
AF: University of New Hampshire, Space Science Center, Morse Hall, Durham, NH 03824, United States
AU: Lanzerotti, L
EM: ljl@njit.edu
AF: New Jersey Institute of Technology, Center for Solar-Terrestrial Research, Newark, NJ 07102, United States
AU: Mende, S
EM: mende@ssl.berkeley.edu
AF: University of California Berkeley, Space Sciences Laboratory 7 Gauss Way, Berkeley, CA 94720,
AU: Frey, H
EM: hfrey@ssl.berkeley.edu
AF: University of California Berkeley, Space Sciences Laboratory 7 Gauss Way, Berkeley, CA 94720,
AU: Inan, U
EM: inan@stanford.edu
AF: Stanford University, STAR Lab, 350 Serra Mall, Stanford, CA 94305, United States
AU: Spasojevic, M
EM: maria@nova.stanford.edu
AF: Stanford University, STAR Lab, 350 Serra Mall, Stanford, CA 94305, United States
AU: Engebretson, M
EM: engebret@augsburg.edu
AF: Augsburg College, 2211 Riverside Ave, Minneapolis, MN 55454, United States
AU: Posch, J
EM: posch@augsburg.edu
AF: Augsburg College, 2211 Riverside Ave, Minneapolis, MN 55454, United States
AU: Petit, N
EM: petit@augsburg.edu]
AF: Augsburg College, 2211 Riverside Ave, Minneapolis, MN 55454, United States
AU: Clauer, R
EM: rclauer@umich.edu
AF: Virginia Tech, Department of Electric and Computer Engineering, Blacksburg, VA 24061, United States
AU: LaBelle, J
EM: jlabelle@aristotle.dartmouth.edu
AF: Dartmouth College, Department of Physics and Astronomy, Wilder Lab, Hanover, NH 03755, United States
AU: Ridley, A
EM: ridley@umich.edu
AF: University of Michigan, Space Physics Research Laboratory, Ann Arbor, MI 48109,
AU: Rosenberg, T
EM: tjrosen@umd.edu
AF: University of Maryland, Institute for Physical Science and Technology, College Park, MD 20742, United States
AU: Detrick, D
EM: detrick@umd.edu
AF: University of Maryland, Institute for Physical Science and Technology, College Park, MD 20742, United States
AB: In Antarctica, the Polar Experiment Network for Geospace Upper-atmosphere Investigations (PENGUIn) team operates a suite of optical and radio wave imagers, magnetometers, riometers, and ELF-HF receivers at South Pole and McMurdo stations, as well as from the Automated Geophysical Observatories (AGOs) on the Antarctic polar plateau. These stations span locations from the auroral zone to deep in the polar cap. Employing data from this array, ground-based observations during several THEMIS satellite event studies will be discussed. These include: a flux transfer event (FTE) on May 20, 2007; a solar wind shock propagation on June 21; a hot flow anomaly on July 4; high latitude optical events on August 8th and 10th; and substorm events on March 23rd and 24th. Of particular interest is the FTE event where the magnetometer Z-component appears to have the signature of a line current passing overhead at South Pole and a sharp cutoff of 2-4 kHz VLF signals is also observed at the time the current moved overhead. Cosmic noise absorption and 630 nm optical signals also began about the time the currents moved overhead, and then tracked the H-component of the magnetometer. The enhanced optical signal was coincident with increased ionosphere currents as shown by the H-component. In this presentation, a southern hemisphere contextual description of this event, and the others listed above, will be presented.
UR: http://www.antarcticspacescience.org
DE: 7845 Particle acceleration
DE: 7867 Wave/particle interactions (2483, 6984)
SC: SPA-Magnetospheric Physics [SM]
MN: 2007 Fall Meeting