Space Climate 7 Meeting Abstract
Short-time response of lightning activity to solar energetic particle
Hui Li (National Space Science Center)
Wu, Qiong; Wang, Chi (National Space Science Center)
Solar energetic particles (SEPs) are believed to provide a plausible link between solar activities and terrestrial climate/weather change. In this study, the relationship between the rapid enhancements of neutron monitor count rates in a few minutes, known as the ground level enhancements (GLEs), and the Earth’s lightning activities is investigated. To match the observation of the world wide lightning location network (WWLLN), three GLEs on 01/20/2005, 12/13/2006 and 05/17/2012 are studied. It is clear that the flash count shows a rapid positive response to neutron monitor count rate right after the GLE’s onset for all three cases. Furthermore, the stronger the GLE intensity is, the more evident positive correlation presents. For example, the intensities of three GLEs are 282.42%, 83.4% and 16.0%, respectively. Accordingly, the relative changes of the corresponding flash count decreases from 31.7% to 16.2% and to 1.7%. Further statistical verification is needed in the future.
Mode of presentation: oral (Need to be confirmed by the SOC)