Physics
Scientific paper
Dec 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006georl..3324101m&link_type=abstract
Geophysical Research Letters, Volume 33, Issue 24, CiteID L24101
Physics
Magnetospheric Physics: Auroral Phenomena (2407), Magnetospheric Physics: Magnetic Reconnection (7526, 7835), Magnetospheric Physics: Magnetospheric Configuration And Dynamics, Magnetospheric Physics: Magnetotail, Magnetospheric Physics: Magnetic Storms And Substorms (7954)
Scientific paper
We have statistically studied magnetotail variations associated with expansion onsets for storm and nonstorm time substorms, using Geotail data. Here storm time was defined as Sym-H <= -30 nT. It was found that there are no qualitative differences in magnetotail variations between these two types of substorms, although the energy accumulation and the dipolarization tend to be more significant during storm time substorms. The statistical results evidently show that the magnetic reconnection and the dipolarization do occur in the magnetotail around onset for both types of substorms, suggesting that storm and nonstorm time substorms are caused by the same mechanism.
Kamide Yohsuke
Liou Kan
Machida Shiki
Meng Ching I.
Miyashita Yuki
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