HR: 1340h
AN: SM33A-0445    [Abstracts]
TI: Ground based VLF observations near L=2.5 during the Halloween 2003 storm
AU: * Spasojevic, M
EM: maria@nova.stanford.edu
AF: Stanford University, 350 Serra Mall, Stanford, CA 94305 United States
AU: Inan, U S
EM: inan@nova.stanford.edu
AF: Stanford University, 350 Serra Mall, Stanford, CA 94305 United States
AB: Ground based recordings at Palmer Station, Antarctica (L=2.44) provide rare observations of VLF waves at low L during and in the aftermath of the Halloween 2003 superstorms. VLF observations in the morning magnetic local time sector for Oct 29 to Nov 5 2003 are compared with daily global average changes in the electron radiation belts near the slot region. Wave activity observed at Palmer was remarkably intense during this period and included discrete chorus emissions, mid-latitude hiss as well as an unusual form of hiss extending up to ~15 kHz suggestive of auroral hiss. While the inner edge of the new radiation belt formed near L=2, analysis of VLF data indicate that chorus was primarily confined outside L~2.75.
DE: 2716 Energetic particles: precipitating
DE: 2720 Energetic particles: trapped
DE: 2772 Plasma waves and instabilities (2471)
DE: 2788 Magnetic storms and substorms (7954)
SC: SPA-Magnetospheric Physics [SM]
MN: Fall Meeting 2005