Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5487608 | Journal of Atmospheric and Solar-Terrestrial Physics | 2017 | 7 Pages |
Abstract
According to the time-resolved spectra of the lightning stepped leader and dart leader processes, the channel temperature, its evolution characteristics with time and the variation along the channel height in the transmission process were analyzed. The results show that the stepped leader tip has a slightly higher temperature than the trailing end, which should be caused by a large amount of electric charges on the leader tip. In addition, both temperature and brightness are enhanced at the position of the channel node. The dart leader has a higher channel temperature than the stepped leader but a lower temperature than the return stroke. Meanwhile, the channel temperature of the dart leader obviously increases when the dart leader propagates to the ground.
Keywords
Related Topics
Physical Sciences and Engineering
Earth and Planetary Sciences
Geophysics
Authors
Xuan Chang, Ping Yuan, Jianyong Cen, Xuejuan Wang,