Magnetic loop antennas data for the manuscript "A strong pulsing nature of negative intracloud dart leaders accompanied by regular trains of microsecond-scale pulses "

Data used in the analysis of sequences of magnetic field microsecond scale pulses occurring during the development of extensive intracloud flashes. The antennas measure the time derivative of the magnetic field fluctuations. Measurements conducted by the Antenna 2 are used to analyze event C1. Measurements conducted by the Antenna 1 are used to analyze events C5, C9-1 and C9-2.