TABLE 2.

Theoretical calculation of electrotransformed-soil volumes according to the current distribution model in soil^a

Lightning amplitude		Vol of soil (m3)
Icrest (kA)	Probabilityb (%)	ρsoil = 50 Ω · mc	ρsoil = 500 Ω · m
26	50	2	50
73	10	8	250
180	1	30	950

^aVolumes are given for two soil resistivity values and between electric fields: E_L = 2.3 kV/cm and E_H = 13 kV/cm.

^bThat is, the probability of exceeding a given I_crest.

^cSoil resistivity.