Figure 4
From: Leader-chasing behavior in negative artificial triggered lightning flashes
Optical recordings and corresponding electric field signatures of the leader-chasing behavior in Case II. (a) A sequence of cropped high-speed frames showing the leader-chasing behavior, with background removed, intensity inverted, and contrast enhanced. The arrows with different colors indicate the position of each leader’s head. (b) Corresponding electric field signature with three insets showing the counterparts.
