HR: 0800h
AN: SM21B-0384    [Abstracts]
TI: Observation of dusk electric field in the LLBL
AU: * Wang, N
EM: nqwang@center.cssar.ac.cn
AF: Center for Space Science and Applied research, Academia Sinica, Zhongguancun, Beijing,China, 100080 China
AU: Chen, T
EM: tchen@center.cssar.ac.cn
AF: Center for Space Science and Applied research, Academia Sinica, Zhongguancun, Beijing,China, 100080 China
AU: Liu, Z
EM: zxliu@center.cssar.ac.cn
AF: Center for Space Science and Applied research, Academia Sinica, Zhongguancun, Beijing,China, 100080 China
AB: A big magnetic storm with Dst of order - 472 nT occurred on November 20, 2003. Cluster spacecrafts passed through the magnetopause at about 16:33:20 on the dusk flank, and crossed LLBL between 14:4:00 and 16:13:20. The dusk electric field component Edusk was observed in LLBL. Edusk is about order of 0 ­C 45 mV/m during big magnetic storm, but Edusk is about order of (-1) ­C 1 mV/m during quiet time. At the same time Edusk is about order of 20-70 mV/m during big magnetic storm in the magnetosheath, and the variance of Edusk is correlative with Bz and V.
DE: 2724 Magnetopause and boundary layers
SC: SPA-Magnetospheric Physics [SM]
MN: Fall Meeting 2005