HR: 11:15h
AN: AE41B-04 INVITED     [PDF]
TI: Fine structures, velocity and the ELF signature of gigantic jets*
AU: * Su, H
EM: htsu@phys.ncku.edu.tw
AF: Department of Physics, National Cheng Kung University, No.1, Ta-Hsueh Road, Tainan, 70148 Taiwan
AU: Hsu, R
EM: rrhsu@phys.ncku.edu.tw
AF: Department of Physics, National Cheng Kung University, No.1, Ta-Hsueh Road, Tainan, 70148 Taiwan
AU: Chen, A
EM: alfred@phys.ncku.edu.tw
AF: Department of Physics, National Cheng Kung University, No.1, Ta-Hsueh Road, Tainan, 70148 Taiwan
AU: Wang, Y
EM: l2890102@phys.ncku.edu.tw
AF: Department of Physics, National Cheng Kung University, No.1, Ta-Hsueh Road, Tainan, 70148 Taiwan
AU: Sato, M
EM: msato@pat.geophys.tohoku.ac.jp
AF: Department of Geophysics, Tohoku University, Department of Geophysics, Tohoku University, Sendai, 980-8578 Japan
AU: Fukunishi, H
EM: fuku@pat.geophys.tohoku.ac.jp
AF: Department of Geophysics, Tohoku University, Department of Geophysics, Tohoku University, Sendai, 980-8578 Japan
AU: Lee, L
EM: loulee@nspo.gov.tw
AF: National Space Program Office, 8F, 9, Prosperity 1st Road, Science-Based Industrial Park, Hsin-Chu, 300 Taiwan
AB: Gigantic jet is a type of transient luminous events that optically connect thundercloud-top and the ionosphere [Su et al., Nature 423, p974-976, 2003]. The dynamical evolution of gigantic jets can be divided into three stages: the leading jet, the fully developed stage, and the trailing jet. At the fully developed stage, the upper portion of the gigantic jets is very similar to classical sprites, and the lower portion remembers blue jets. In this talk, a few interesting properties and the spatial-temporal evolution of the fine structures of gigantic jets will be discussed. The ELF and the lightning signatures of the gigantic will also be compared, and a possible generating mechanism will be presented. * This work was partially supported by 92-NSPO(B)-ISUAL-FA09-01 and NSC 92-2111-M-006-002
DE: 0310 Airglow and aurora
DE: 2427 Ionosphere/atmosphere interactions (0335)
DE: 2435 Ionospheric disturbances
DE: 3304 Atmospheric electricity
DE: 3324 Lightning
SC: Atmospheric and Space Electricity [AE]
MN: 2003 Fall Meeting