HR: 1300h
AN: SM52A-0570    [PDF]
TI: Solar wind control of storm and substorm correlations
AU: * Lin, C
EM: chlin@sedc.ss.ncu.edu.tw
AF: Department of Electrical Engineering, Ching Yun University, 229, Chien-Hsin Rd, Jung-Li, 320 Taiwan
AU: Chao, J
EM: jkchao@jupiter.ss.ncu.edu.tw
AF: Institute of Space Science, National Central University, 300, Jung-Da Rd, Jung-Li, 320 Taiwan
AU: Shue, J
EM: shuej1@sedc.ss.ncu.edu.tw
AF: Institute of Space Science, National Central University, 300, Jung-Da Rd, Jung-Li, 320 Taiwan
AB: The Sym-H index has been used as a higher time resolution measure of the storm intensity, which is associated with the magnetic disturbance caused by the ring current. The AU and AL indices express the strongest current intensity of the eastward and westward auroral electrojets respectively. In this study both the AU and AL indices are compared with the Sym-H index for storm-time events. The storm-time events are selected for minimal Dst less than - 50nT. It is found that the correlation between the auroral electrojets and ring current changes case by case. These events are then separated by high and low correlation coefficients. Upstream solar wind characteristics related to these events are investigated. Possible causes for changes of the correlation coefficients will be discussed as well.
DE: 2778 Ring current
DE: 2784 Solar wind/magnetosphere interactions
DE: 2788 Storms and substorms
SC: SPA - Magnetospheric Physics [SM]
MN: 2003 Fall Meeting