# Solar Wind Dynamic Pressure during Magnetic Storms and its implications on the Dayside Ring Current Particle Loss

• Kim, Kyungchan (Department of Astronomy and Space Science, Chungbuk National University) ;
• Lee, Dae-Young (Department of Astronomy and Space Science, Chungbuk National University)
• Published : 2004.04.01

#### Abstract

It has been known that ring current particles can be lost through dayside MP(magnetopause). However, details of the loss mechanism of this process has not received much attention. In this study, we show that the solar wind dynamic pressure P$\sub$D/ can play a significant role in the dayside loss. In order to show that, we have first conducted superposed epoch analysis using 95 geomagnetic storm events selected from the period 1997 to 2002. (omitted)