Fast Breakdowns Observed in the Initial Leaders of Two Energetic Compact Strokes

Dataset Description This dataset contains 3D lightning location results for two Energetic Compact Stroke (ECS) events. Two files are included: HF3D_1732785151.dat – 3D lightning locations for the ECS leader A flash. HF3D_1734785454.dat – 3D lightning locations for the ECS leader B flash. The timestamp 1734785454 and 1732785151 corresponds to the occurrence time of the lightning flash in Japan Standard Time. File format and parameters The first row contains the lightning occurrence time. Column descriptions: Time (ms) – time relative to the lightning source. X, Y, Z (m) – 3D spatial coordinates relative to ground level. The origin (0, 0, 0) corresponds to latitude 36.76°N and longitude 136.76°E. This dataset allows analysis of the spatial and temporal development of these two ECS flashes.