HR: 15:05h
AN: SM33C-06 INVITED    [Abstracts]
TI: Solar Wind Triggers for Substorm Expansion Onsets
AU: * Lui, A T
EM: Tony.Lui@jhuapl.edu
AF: Applied Physics Laboratory, 11100 Johns Hopkins Rd., Laurel, MD 20723-6099, United States
AB: One of the greatest challenges in space plasma physics is the physical process or processes responsible for onsets of magnetospheric substorm expansions. As solar wind essentially provides the overall energy input into the magnetosphere, sudden changes in the solar wind and/or its embedded magnetic field are likely candidates to trigger these onsets. In this presentation, we review several prevailing substorm models and assess their predictions on what are identified in the solar wind as substorm triggers. Furthermore, we shall discuss what conditions these solar wind triggers create within the magnetosphere that may lead to the development of substorm expansions.
DE: 2720 Energetic particles: trapped
DE: 2722 Forecasting (7924, 7964)
DE: 2728 Magnetosheath
SC: SPA-Magnetospheric Physics [SM]
MN: 2007 Fall Meeting