The data provided in reports from Météorage (htpp://meteorage.fr/) was as follows:
id: Number of strikes listed in the report.
Date: date of strike dd/mm/yyyy, time of strike hh/mm/ss in local time (MET) or UTC (add 1 for the local time in winter) (add 2 for the local time in summer).
lat.: Latitude of strike in decimal degrees.
Long.: Longitude of strike in decimal degrees.
amperage. (Cloud-to-earth): Polarity and peak intensity of the discharge current in kiloamperes (1 kA = 1000 A).
gd-axe: major axis of the confidence ellipse of the location in km (max).
pt-axe: minor axis of the confidence ellipse of the location in km (max).
Inclin.: Slope of the ellipse with respect to North.
Distance: distance in kilometers between the impact point and the reference city or coordinates used.
dir. (Azimuth): angular direction of the impact point with respect to geographic North (in degrees clockwise), as shown from the centre of the analysis.