Current propagation type self-consistent leader-return stroke model

A current propagation type return stroke model which is consistent with the estimated distribution of the charge on the leader channel is described. The model takes into account the dispersion of the return stroke current along the return stroke channel. The model is capable of generating lightning return stroke electromagnetic fields that are in close agreement with experimental observations. The model could also be used to estimate the electric fields from the leader-return stroke combination at any given distance.