A Physical Model of Branching in Upward Leaders

P. Lalande & V. Mazur
The physical processes leading to branching and physical factors affecting branching features are poorly understood. We are applying the tested physical model of axisymmetrical leader development following the streamer-leader transition to a 3-dimensional propagation of the leader with branching. The propagation of the leader is driven by the potential drop at the leader tip. The branching occurs when the drop potential at the leader tip reaches a threshold. The space charge around the leaders self...