Lightning activity and its associations with cloud structures in a rainstorm dominated by warm cloud precipitation

It is the data associated with the figures in the paper titiled "Lightning activity and its associations with cloud structures in a rainstorm dominated by warm cloud precipitation" which is being in the process of submission. The following is the abstract of this paper. 

Lightning activity and its associations with cloud structures during a rainstorm dominated by warm cloud precipitation were studied in Guangdong, China on 7 May 2017, using three-dimensional lightning location data, polarimetric radar observation data and wind-field retrieval data. The overall convection and lightning activities of the rainstorm were weak. The rainstorm exhibited some electrical characteristics different from typical thunderstorms. First, lightning discharges were more concentrated in areas featuring relatively weak convection and a relatively low precipitation intensity. Second, the hydrometeor predominantly associated with lightning discharges was dry aggregated snow, while the graupel played a secondary role. Finally, although the rainstorm generally showed a typical tripolar charge structure in the first 4 hours, the height of the charge regions was clearly decreased afterwards, with the main negative charge core being below approximately –8 °C level. Moreover, most of the lightning discharges were associated with weak updrafts and downdrafts (–2 to 4 ms–1) at the 0 and –10 °C layers. The results suggested that, in the case of relatively weak convection and charging processes, the effective aggregation of charged particles and the formation and maintenance of stable existing charge regions with sufficient charge density may be crucial for the generation of relatively active lightning discharges. The regions with relatively low precipitation intensity in the rainstorm have relatively weak kinematics and can support these conditions, resulting in relatively more lightning discharges than those in regions with strong precipitation.