Based on the high-speed video observations obtained at the Tall-Object Lightning Observatory in Guangzhou (TOLOG), the attachment processes of three lightning flashes seem to belong to the connections between “the lateral surface of negative leader and positive leader tip” which had never been reported before were investigated. The leader connection processes of these flashes were examined in detail, and a mechanism behind connecting behavior between the lateral surface of negative leader and positive leader tip was discussed. Observation shows that negative leaders usually have abundant branches. Although some may extinguish, they still maintain a certain conductivity. When the positive leader tip comes close to the lateral surface of the negative leader (usually a few tens of meters), the previously disappeared short branch can be reactivated. It is easier for the positive leader tip to connect the tips of these branches (whether they have been extinguished or not).

中文翻译：

---

正导引尖端和负导引的侧面之间是否存在连接的情况？


根据广州高天体闪电天文台 （TOLOG） 获得的高速视频观测，3 次闪电的附着过程似乎属于以前从未报道过的“负导引侧面和正引导尖端”之间的联系。详细研究了这些闪光的引线连接过程，并讨论了负引线和正引线尖端的侧面连接行为背后的机制。观察表明，消极的 leader 通常有丰富的分支。虽然有些可能会熄灭，但它们仍然保持一定的导电性。当正极导引尖端靠近负导引的侧面（通常为几十米）时，先前消失的短分支可以重新激活。正向 leader tip 更容易连接这些分支的 tips （无论它们是否已熄灭）。